Checking System Health

This topic describes the health overview summary in SteelConnect. It includes these sections:

•System health overview

•Getting a summary of system health

•Checking network overlays

•Checking overlay routes

•Checking appliance BGP, OSPF, and FIB information

•Checking uplinks

•Checking zones and subnets

•Checking appliances

System health overview

The Health Check pages in SCM let you check the status of the hardware, software, and network status in your SteelConnect system per organization. These pages give you both summary and detailed information about key system components to answer questions such as:

•How many tunnels are actively communicating with other tunnels in an overlay network? Are any tunnels degraded and no longer communicating?

•Are the uplinks and WANs for an organization functioning properly? Is QoS enabled in the WAN?

•Do I need to adjust the default appliance thresholds to meet the Service Level Agreements?

•How many subnets and zones are used in each site?

•Are all of the appliances in the corporate headquarters running the same firmware version?

Getting a summary of system health

To display the overall system health per organization, choose Health Check.

Access additional Health Check pages from the Summary window or from the left navigation pane. These pages are organized into top-down, hierarchical layers. The Overlay Health page provides a high-level SD-WAN overview. More detailed networking information is provided in the Uplink Health and Zone Health pages. The lowest layer, Appliance Health, gives the physical or virtual appliance status.

Status icons give you a quick visual representation of the health of each layer. For more details, choose a particular category or click the icon next to that category. For example, choose Zone Health or click the status icon to the left of Subnets to open the Zone Health page.

Expanding the Health Check page

Events in the lower layers can affect the status at higher layers; for example, a change in uplink status can change the overlay status.

Windows in a page include nested, collapsible tables. For example, the Subnet window displays a table that shows subnets at an organization level. Click > or a status icon for more details.

Expanding the Subnet window

A top-level summary shows the lowest status of any of the components in the table. For example, if a site’s subnets are being shown at the top level, and a single zone in the site has a status of Faulty, the status for the entire site is shown as Faulty.

The health conditions are arranged into these categories:

•Overlays - Provides an overview of the overlay networks used in the organization. See Checking network overlays for more information about the Overlay page, including icon definitions.

Another page, Overlay Routes, provides additional information about overlay networks between sites. See Checking overlay routes for details.

–Tunnels up - The number of tunnels that are showing a health condition of Ready; that is, active and communicating with the other tunnels in the network.

–Tunnels degraded - The number of tunnels that are showing a health condition of Degraded.

–Tunnels down - The number of tunnels that are showing a health condition of Faulty.

–Tunnels ignored - This field is reserved for future use.

•Uplinks - Provides uplink and WAN status and QoS and routing parameters for each organization. See Checking uplinks for more information about the Uplink page, including icon definitions.

–Uplinks up - The number of uplinks that are active (showing a health condition of Ready).

–Uplinks degraded - The number of uplinks that are showing a health condition of Degraded.

–Uplinks down - The number of uplinks that are showing a health condition of Faulty.

–Uplinks ignored - This field is reserved for future use.

•Subnets - Provides a summary status of the subnets used on the LAN side of the network topology. This list includes both static subnets and dynamic subnets that are defined by routing protocols such as OSPF or BGP.

See Checking zones and subnets for more information about the Subnet page, including icon definitions.

–Subnets up - The number of subnets that are working (showing a health condition of Ready).

–Subnets degraded - The number of subnets that are showing a health condition of Degraded.

–Subnets down - The number of subnets that are showing a health condition of Faulty.

–Subnets ignored - This field is reserved for future use.

•Appliances - The configuration, software and firmware version, and hardware status of physical and virtual SteelConnect appliances in the organization. See Checking appliances for more information about the Appliance page, including icon definitions.

–Appliances up - The number of appliances that are active, functional, and able to communicate with the rest of the appliances in the overlay network (showing a health condition of Ready).

–Appliances degraded - There is a connectivity, configuration, firmware, or CPU issue with one or more appliances (showing a health condition of Degraded).

–Appliances down - The number of appliances that are showing a health condition of Faulty.

–Appliances ignored - This field is reserved for future use.

Checking network overlays

The Overlay Health page shows the overlay network’s health per organization and site. Overlay networks are the automatically configured VPN (AutoVPN) tunnels that are created between sites that use SteelConnect gateways.

The initial view (Global topology) shows all sites in the organization. To view information for a site, select a site from the Site drop-down list, or click the right arrow to the left of the table.

The Global topology level shows the lowest health rating for any site in the topology. For example, if nine sites’ tunnels are healthy but one site’s tunnel is degraded, the Global topology shows a status of Degraded in the Tunnels column of the table.

This page shows twice the number of tunnels that you see on the dashboard map and in the Health Check Summary window. The dashboard map provides a graphic view of a single full-duplex tunnel, and the Health Check Summary counts tunnels between sites as a single tunnel. However, the Overlay Health page counts tunnels between sites as two tunnels—one tunnel from the local site to the remote site, and one tunnel from the remote site to the local site.

Overlay Health page

This table describes Overlay Health page details.

Field	Description
Topology	The site topology.
Edge Nodes	The number of SteelConnect appliances in the site or topology.
Regional Nodes	The number of nodes in the region. This field is reserved for future use and its current value is always 0.
# of Tunnels	The number of overlay tunnels. Each overlay tunnel is counted twice (once in each direction).
Tunnels	Displays an icon with the overall tunnel statistics. Mouse over the status icon to see more information. Ready - All tunnels are up. Faulty - One or more tunnels are down. When viewing an organization, click the icon to expand the organization into its branches. When viewing a branch, click the icon to open the Tunnel Status and Path Quality window.
PQ	Path quality. Mouse over the status icon for more information about path quality metrics. Ready - All tunnels are operating at Excellent or Good level. Degraded - One or more tunnels are operating at a Fair level. Faulty - One or more tunnels are operating at a Poor level. This value is based on overall path quality (Excellent, Good, Fair, or Poor), which is taken from the threshold values used by the appliances to apply path selection. The PQ information takes latency, jitter, and packet loss into consideration. QoS for gateways uses the common applications kept enhanced (CAKE) scheduler, and these values are not configurable. For more details about CAKE, see How does QoS for gateways work?. SCM calculates an average of each tunnel’s PQ data in each WAN connected to the site to provide an overall rating for all WANs. To find path quality data, click the tunnel on the dashboard or choose Visibility, choose WAN paths, and click the Status indicator.

Click an icon in the Tunnels or PQ column for a site to view Tunnel Status and Path Quality details for that site.

Tunnel Status and Path Quality window

This table describes the Tunnel Status details.

Field	Description
Status	The status of all tunnels. Ready - All tunnels are up. Faulty - One or more tunnels are down.
Last Updated	The last time the status was updated. Mouse over the status icon to see the exact time and date.

This table describes the Tunnel Stats details.

Field	Description
Remote Site	The remote site name.
Local Uplink	The uplink that is local to the site.
WAN	The type of WAN (Internet or MPLS) that is used for the uplink.
Remote Uplink	The uplink that is remote to the site.
RX bps	The received tunnel speed in bits per second since the last time the statistics were cleared.
RX %	The percentage of received traffic that is split across tunnels. If a single tunnel is used, this percentage is 100%.
TX bps	The transmitted tunnel speed in bits per second since the last time the statistics were cleared.
TX %	The percentage of transmitted traffic that is split across tunnels. If a single tunnel is used, this percentage is 100%.
Status	The status of the tunnel as reported by the site (either Up, Down, or Uninitialized).

This table describes the Path Quality details.

Field	Description
Status	The path quality status.
Last updated	The last time the path quality statistics were updated. Mouse over the status icon to see the exact time and date.
Average WAN PQ table
WAN	The WAN name.
Path Quality	The local path quality (Excellent, Good, Fair, or Poor) for this WAN.
Per Tunnel PQ Stats table
Remote Site	The local site name.
Local Uplink	The uplink that is local to the site.
WAN	The type of WAN (Internet or MPLS) that is used for the uplink.
Remote Uplink	The uplink that is remote to the site.
Local PQ	The local path quality (Excellent, Good, Fair, or Poor) for this tunnel.
Remote PQ	The remote path quality (Excellent, Good, Fair, or Poor) for this tunnel.

Checking overlay routes

The Overlay Routes page shows the health of the overlay networks between sites in your organization. To filter results, enter the site name in the Site text box. Partial searches are supported.

If one or more tunnels are down in a site, that site is shown as Down.

Overlay Routes page

This table describes the fields in the Overlay Routes table.

Field	Description
Sites	The name of the site.
Reachability Status	The reachability status of the overlay tunnels between sites. Up - All tunnels are up. Down - One or more tunnels are down.
Number of Tunnels Down	The number of tunnels that are down.
Number of Tunnels Up	The number of tunnels that are up.
Number of Destination Networks	The number of destination networks that are remote to the site.

To find overlay tunnel information for a local site, click anywhere in the row for the local site to open the Local Site window. This window shows the number of overlay tunnels that are configured between the local site and remote sites and the status of those tunnels. To find overlay networks between a specific remote site and the local site and the status of those networks, click the right arrow next to the name of the remote site in the Remote Site area.

Overlay Routes page with Local Site pane shows the result of clicking the Reachability Status icon for the branch-site-11 site, which opens the Local Site window and displays the status of the overlay tunnels that have been configured between the branch-site-11 site and the remote sites. The right arrow has been clicked for the branch-site-17 site, which shows the subnets for the overlay networks between the local branch-site-11 site and the remote branch-site-17 site.

Overlay Routes page with Local Site pane

This table describes the fields in the Local Site table.

Field	Description
Remote Site	The name of the remote site.
Reachability Status	The reachability status of the overlay tunnels between sites. Up - All tunnels are up. Down - One or more tunnels are down.
Destination Network Address	Shows the number of destination networks between the local and remote sites. To expand this field and see all destination network addresses between the local and remote sites, click the right arrow next to the name of the remote site.
Number of Tunnels Down	The number of tunnels that are down.
Number of Tunnels Up	The number of tunnels that are up.

Search for a remote site by entering text in the Remote Site text box. Partial searches are supported. After you expand the list of subnets for a site, search for a network by entering the subnet in the Destination Network text box. Partial searches are supported for destination networks, but the search term must begin with the start of the destination network. For example, searches for destination networks shown in Overlay Routes page with Local Site pane should start with 198, 172, or fd00.

Click the Reachability Status icon for a subnet to display a pop-up window with details of the uplinks in the subnet. All tunnels window shows the details for all the overlay routes that are reachable between local branch-site-11 site and remote branch-site-17 for the remote destination network address 172.16.18.0/24.

All tunnels window

This table describes the fields in the All tunnels window.

Field	Description
Status	The status of the tunnel. Up - The tunnel is up. Down - The tunnel is down.
Local Uplink	The name of the local uplink.
WAN	The name of the WAN.
Remote Uplink	The name of the remote uplink.
RX bps	The received tunnel speed in bits per second since the last time the statistics were cleared.
TX bps	The transmitted tunnel speed in bits per second since the last time the statistics were cleared.

Checking appliance BGP, OSPF, and FIB information

The Routing Tables page provides BGP, OSPF, and Forwarding Information Base (FIB) information for each appliance that is managed by SCM. There are three tabs in this table; select a tab to open information about that routing protocol or FIB table.

For details, see Displaying underlay FIB and ARP tables in the SteelHead SD User Guide.

Fields in the BGP Neighbors area

Select the BGP tab and select an appliance to open the BGP Neighbors table. Search for entries in this table by site by entering the site’s name in the Site Search field.

Select any row in this table to open the BGP Learned and Advertised Routes pane, which provides more information about each BGP entry per appliance.

Field	Description
Appliance	The appliance’s name.
Site	The site where the appliance is deployed.
Local AS	The local autonomous system (AS) number.
Peer Name	The name of the peer.
Peer IP	The IP address of the peer.
Remote AS	The remote AS number.
Peer State	The peer state (Idle, Connect, Active, OpenSent, OpenConfirm, or Established).

Fields in the BGP Learned and Advertised Routes area

This table describes the fields in the BGP Learned Routes table. The total number of learned routes for the selected appliance is shown at the top of the page.

Field	Description
Destination	The BGP destination and subnet.
Next-Hop	The IP address of the next hop.
AS Path	The AS path.
Metric	The BGP metric.
Weight	The BGP weight.

This table describes the fields in the BGP Advertised Routes table. The total number of advertised routes that the selected appliance has advertised to its neighbor is shown at the top of the page.

Field	Description
Network	The BGP network.
Mask	The BGP mask.

Fields in the OSPF Enabled Appliances area

Select the OSPF tab and select an appliance to open the OSPF Enabled Appliances table.

Select any row in this table to open the OSPF Neighbors and Learned Routes table, which provides more information about each OSPF entry per appliance.

Field	Description
Appliance	The appliance’s MAC address. All appliances in the organization are listed in this table.
Model	The model of the appliance.
Site	The site where the appliance is deployed.
Neighbors configured	The total number of neighbors that have been configured by the appliance.
Routes learned	The number of routes that have been learned by the appliance.

Fields in the OSPF Neighbors and Learned Routes area

This table describes the fields in the OSPF Neighbors area. The total number of OSPF neighbors for the appliance is shown at the top of the page.

Field	Description
Node Serial	The appliance serial number.
Node Model	The appliance model.
Site Name	The site where the appliance is deployed.
OSPF Neighbors table
Neighbor ID	The neighbor’s ID.
Neighbor IP	The neighbor’s IP address.
Area	The OSPF area ID.
Local Interface	The interface on the appliance that is running the OSPF protocol.
State	The current state of OSPF while it is forming an adjacency with its neighbor: •Down - Appliances that intend to establish full OSPF neighbor adjacency prepare to become neighbors by exchanging OSPF Hello packets. •Init - The neighbor building process is beginning because an appliance has received a Hello from a potential neighbor but has not yet seen its own router ID in the neighbor Hello packet. •Attempt - This state is only valid for manually configured neighbors in a non-broadcast multiple access (NBMA) environment. The appliance sends unicast Hello packets every poll interval to the neighbor, from which Hellos have not been received within the dead interval. •2-Way - An appliance sees its own router ID in the Hello packet received from the neighbor. If essential configuration values match, appliance 2 will add appliance 1 to its neighbor table and reply with its Hello packet. Appliance 1 will in turn take action on appliance 2’s reply. Bidirectional communication with the neighbor has been established. •ExStart - A master, a backup, and the initial sequence number are elected. •Exchange - The appliances decide how much information needs to be exchanged. •Loading - Routing information is exchanged. •Full/DR - The appliances have exchanged and synchronized routing information and formed an adjacency. OSPF is fully functional.

This table describes the fields in the OSPF Learned Routes table. The total number of OSPF routes that have been learned by the appliance is shown at the top of the page.

Field	Description
OSPF Learned Routes table
Destination	The routing destination.
Next-Hop	The next-hop router’s IP address.
Cost	The routing metric used in the link-state calculation to determine ideal routes.
Type	The routing type. •NA - A directly connected OSPF route. •External E1 - An OSPF External Type 1 route. •External E2 - An OSPF External Type 2 route. •NSSA N1 - An OSPF not-so-stubby area (NSSA) Type 1 route. •NSSA N2 - An OSPF NSSA Type 2 route.

Appliance Forwarding Information Base area

Select the FIB tab and select an appliance to open the Appliance Forwarding Information Base (FIB) area. Select any row in this table to open the Forwarding Information Base Entries table that provides more information about the FIB entries for a SteelHead SD appliance or an SDI-2030 or SDI-5030 gateway.

To find FIB and Address Resolution Protocol (ARP) information for underlay routes, select Appliance Health, and then select any row for an appliance. See Networking section details for more information.

Field	Description
Appliance	The MAC address of the appliance. All appliances in the organization are listed in this table.
Model	The model of the appliance.
Site	The site where the appliance is deployed.
Number of entries	The number of FIB table entries per appliance.

This table describes the fields in the Forwarding Information Base Entries table.

Field	Description
Destination	The FIB destination and subnet.
Next-Hop	The IP address of the next hop.
Metric	The routing metric for the route.
Route Type	How the route was learned by the appliance. •CONNECTED - A directly connected route. •BGP - This route was learned by BGP. •OSPF - This route was learned by OSPF.
Route Subtype	Additional information about the route. •NA - A directly connected OSPF route. •E1 - An OSPF External Type 1 route. •E2 - An OSPF External Type 2 route. •N1 - An OSPF not-so-stubby area (NSSA) Type 1 route. •N2 - An OSPF NSSA Type 2 route.

Checking uplinks

The Uplink/WAN Health page shows the health of the uplinks that are configured in an organization.

Each row corresponds to a specific uplink. The uplinks are grouped by WAN. If there are multiple uplinks for a WAN in the same site, you see a row for each uplink.

Uplink/WAN Health page

Click any of the status icons in these columns, or click the right arrow to the left of a WAN, to view the sites that are connected to this WAN.

Select the site name or click any icon in the table to display the Internet page. For a description of these fields, see Internet or MPLS page details.

This table describes the Uplink/WAN Health page details.

Field	Description
WAN	The type of WAN (Internet or MPLS).
Type	The type of uplink (static IP, DHCP client, Point-to-Point Protocol over Ethernet [PPPoE], or Point-to-Point Tunneling Protocol [PPTP]).
Uplinks	The total number of uplinks.
Operation	Indicates the health state. Ready - The WAN is healthy. Degraded - The WAN needs attention. Faulty - The WAN is critical.
Reachability	Shows the WAN reachability status. Ready - The uplink is functional. Faulty - The uplink cannot contact the next-hop router. Disabled - The uplink did not yet report reachability, or it belongs to the backup high availability (HA) partner in dedicated uplink mode, or it hasn’t been associated with any appliance.
QoS	Shows QoS status. Enabled - QoS is enabled. Disabled - QoS is not enabled or has not yet initialized in the WAN. QoS support is not shown for SDI-5030 or SteelHead SD appliances.
Routing	Shows OSPF or BGP routing status. Enabled - OSPF or BGP routing is enabled and the uplinks can peer with the OSPF/BGP router on the next hop. Disabled - Uplink is not configured to peer with an OSPF or BGP router. Disabled Stale - Uplink was not configured to peer with an OSPF or BGP router when the appliance went offline.

Internet or MPLS page details

Select the site name or click any of the status icons for a site in the table to display the Internet page (for an internet WAN) or MPLS page (for an MPLS WAN).

Internet page for a site

The following tables describe the Status and Others sections in the Internet or MPLS page.

Capacity section (Status area) details

Field	Description
Capacity	The total amount of traffic on the uplink if the bandwidth is within SLA limits, or the percentage of total bandwidth being used. If QoS is enabled on the uplink, these status levels are shown: Bandwidth within SLA limits - Bandwidth is within SLA limits. This icon is also shown if QoS is disabled; in this case, QoS will always be shown as within SLA limits because there is no SLA bandwidth to compare it against. Degraded - The bandwidth has crossed the low threshold. Faulty - The bandwidth has crossed the high threshold. The user-configurable thresholds determine if the thresholds match the SLA limits. To view or edit these threshold levels, choose Organization and select the Appliance Threshold tab. Disabled - The uplink belongs to an HA backup node, or the node belongs to a shadow appliance.
Current Status	The total amount of traffic on the uplink if the bandwidth is within SLA limits, or the percentage of total bandwidth being used.
Last Update	The last time the status was updated. Mouse over the status icon to see the exact time and date.
Upload Bandwidth	Data being uploaded in kilobits per second (kbps) and total bandwidth available for uploading.
Download Bandwidth	Data being downloaded in kbps and total bandwidth available for downloading.

Port section (Status area) details

Field	Description
Port	The health status of the ports. All Ports Healthy - All ports serving this uplink are configured and functional. Degraded - A minor spike in bandwidth usage has occurred on one or more ports. A minor spike is defined as bandwidth exceeding the low threshold. Faulty - One or more ports are configured but down, or a major spike in bandwidth usage has occurred on one or more ports. A major spike is defined as bandwidth exceeding the high threshold. Disabled - No ports are configured to service this uplink.
Current Status	Additional information about the status of the ports.
Last Update	The last time the status was updated. Mouse over the status icon to see the exact time and date.
TX Low Threshold	The lowest level of TX port utilization. To view or edit these threshold levels, choose Organization and select the Appliance Threshold tab.
TX High Threshold	The highest level of TX port utilization.
RX Low Threshold	The lowest level of RX port utilization.
RX High Threshold	The highest level of RX port utilization.
Fields in the Ports status table
Name	The port’s name.
Operational Status	The port’s status.
MAC Address	The port’s MAC address.
Port Mode	The port’s operational configuration: Disabled, Single for single zone, Multi for multizone, Uplink, or Mirrored uplink.
Zone	The zone or uplink associated with the port. It the ports is associated with an uplink, the uplink is shown; if the port doesn’t belong to an uplink or zone, this value is None.
RX Bytes	Amount of RX data transferred in bytes.
TX Bytes	Amount of TX data transferred in bytes.
TX Errors	The number of TX errors in bytes.
RX Errors	The number of RX errors in bytes.
Port Health	A value based on the TX high and low, RX high and low, and TX Error and RX Error high and low thresholds. Healthy - All the appliance’s ports are in a Healthy state. Degraded - One of more ports are in Degraded state. Faulty - One or more ports are configured as operational but are Down.

Reachability section (Others area) details

Field	Description
Reachability	Shows whether the uplink is reachable from the next-hop router. Uplink Online - The uplink is reachable from the next-hop router. Faulty - The uplink is not reachable from the next-hop router.
Current Status	Provides more reachability information.
Last Update	The time since the last update.
Gateway IP Address	The gateway IP address.

QoS Section (Others area) details

Field	Description
QoS	The current QoS status from the traffic shaper on the uplink’s appliance. Ready - QoS is enabled on the appliance. Inactive or QoS Disabled - Either QoS has not been enabled on the appliance, or it was enabled and then disabled.
Current Status	Additional information about QoS status.
Last Update	The time since the last update.

Routing section (Others area) details

Field	Description
These fields shown differ depending on whether the routing protocol is OSPF or BGP.
Fields shown when protocol is OSPF
Current Status	The state of dynamic routes. Ready - This uplink is configured for OSPF routing and has OSPF membership with its next-hop neighbor, the gateway is able to peer with the OSPF router, and the state of that router is Full/DR. Faulty - This uplink is configured for OSPF routing, but either the uplink port is faulty, the router is faulty, the peering state is no longer Full/DR, or the gateway is not reporting any neighbors. Disabled - The uplink is not configured for OSPF. Ready Stale - The appliance with this uplink is currently offline, but the dynamic routing state before the appliance went offline was Ready. Faulty Stale - The appliance with this uplink is currently offline, but the dynamic routing state before the appliance went offline was Faulty. Disabled Stale - The appliance having this uplink is currently offline, but the uplink was not configured to be part of an OSPF peer router.
Last Update	The last time dynamic route information was updated.
Router IP Address	The router’s IP address.
Router ID	The router’s ID.
Router Area	The router’s area.
OSPF Neighbor List (Last Reported)	See OSPF Neighbor List table details for a description of the fields in this table.
OSPF Routing Table	See OSPF Routing table details for a description of the fields in this table.
Fields shown when protocol is BGP
Current Status	The state of dynamic routes (number of total neighbors and the number of unreachable neighbors, if any). Ready - This uplink is configured for BGP routing, and peering between the gateway and the BGP router has been established. Faulty - BGP peering between the gateway and the BGP router has not been established. Disabled - The uplink is not configured for BGP.
Last Update	The last time dynamic route information was updated.
Router IP	The router’s IP address.
Router AS	The router’s autonomous system (AS) number.
BGP Neighbor List (Last Reported)	See BGP Neighbor List (Last Reported) table details for a description of the fields in this table.
BGP Learned Routing Table	See BGP Learned Routing table details for a description of the fields in this table.
BGP Advertised Routing Table	See BGP Advertised Routing table details for a description of the fields in this table.

OSPF Neighbor List table details

Field	Description
Neighbor IP	The neighbor’s IP address.
Neighbor ID	The neighbor’s ID.
Peer Area	The area the neighbor belongs to.
Priority	The routing priority.
Time Expires	The time when the routing information expires.
State	The time that the routing instance has been in its current state.

OSPF Routing table details

Field	Description
Destination	The routing destination.
Next-Hop	The next-hop router’s IP address.
Cost	The routing metric used in the link-state calculation to determine ideal routes.
Type	The routing type.
Interface	The uplink interface used for the router.

BGP Neighbor List (Last Reported) table details

Field	Description
Neighbor IP	The neighbor’s IP address.
Neighbor AS	The autonomous system (AS) number.
Prefixes Learned	The number of prefixes that have been learned.
Time Expires	The time when the routing information expires.
State	The time that the routing instance has been in its current state.

BGP Learned Routing table details

Field	Description
Destination	The destination’s IP address.
Next-Hop	The next-hop router’s IP address.
Metric	The multi-exit discriminator value, used to influence how an autonomous system (AS) enters your AS to reach a certain prefix. A lower value is used as the preferred route.
LocPrf	The Local Preference. A higher value is used as the preferred route. The default is 100.
Weight	The weight. This metric is local to this router. A higher value is used as the preferred route.
Path	The AS path. A shorter path is used as the preferred route.
Interface	The interface used for this route.

BGP Advertised Routing table details

Field	Description
Destination	The destination’s IP address.
Next Hop	The next-hop router’s IP address.

Checking zones and subnets

The Zone Health page gives you a status of the zones and subnets in a given site.

To view zones by subnet mask, use the slider in the Group by Prefix section of this page. Sliding it to a larger or smaller prefix shows all supernets or subnets associated with this prefix.

The subnets are listed in collapsible nested tables. Select All sites from the drop-down list to expand the table and view the zones for all sites in the organization. Select a site from the Site drop-down list to view the zones for a particular site.

Zone Health page

Zone Health page details

This table describes the fields in the Zone Health page. The IP address of the zone is shown, along with its corresponding subnet mask.

Click the right arrow in the table to show all subnets associated with all zones and sites in the organization. Click any of the status icons in these columns, or click the right arrow to the left of this field, to view the sites that are associated with the specified zone. Click the status icon for a specific subnet to see more information about the subnet.

Field	Description
IP Address	The IP address used by the zone.
Zones	The number of zones associated with the IP address and subnet.
Sites	The number of sites associated with the IP address and subnet.
Type	The OSPF or BGP type (either Learned or Configured). For OSPF: •No data (empty field) - intra-area •IA - inter-area •E1 - external area 1 •E2 - external area 2 •N1 - Not-So-Stubby Area (NSSA) 1 •N2 - NSSA 2
DHCP Clients	The DHCP client’s status. Mouse over the status icon to see more status information. Ready - The SteelConnect appliance is being used as the DHCP server, and is allocating the IP addresses to clients in this subnet and refreshing the IP addresses after they expire. Faulty - The SteelConnect appliance is being used as the DHCP server and is not correctly allocating the IP addresses. One possible reason for this failure is that the appliance is not refreshing the IP addresses after they expire. Disabled - The SteelConnect appliance is not configured to give DHCP IP addresses for this subnet. Inactive - The subnet’s DHCP server is a SteelConnect appliance and there are no active DHCP clients in this subnet. Ready Stale - All the SteelConnect appliances serving the subnet are offline, and the DHCP state before they went offline was Ready. Faulty Stale - All the SteelConnect appliances serving the subnet are offline, and the DHCP state before they went offline was Faulty. Disabled Stale - All the SteelConnect appliances serving the subnet are offline, and no SteelConnect appliance is configured to assign DHCP addresses for this subnet. Inactive stale - All the SteelConnect appliances serving the subnet are offline, and the DHCP state before they went offline was Inactive.
Routing	The routing status. Enabled - The subnet can properly peer with an OSPF or BGP router on the next hop or has been configured to reach a third-party route. Faulty - The subnet cannot properly peer with an OSPF or BGP router on the next hop or has not been configured to reach a third-party route. Disabled - The subnet is not configured to peer with an OSPF or BGP router, or has not been configured to reach a third-party route.
Overlap	The overlapping net status. Either None, or the number of overlapping networks is displayed. Ready - There are no duplicate network addresses for this subnet in this organization, including network addresses of the learned OSPF or BGP networks. Degraded - This subnet partially overlaps with one or more subnets in this organization, including network addresses of the learned OSPF or BGP networks. Faulty - This subnet has one or more duplicate network addresses among the subnets in this organization, including network addresses of the learned OSPF or BGP networks. Ready Stale - All the appliances serving the subnet are offline, and the overlap before they went offline was Ready. Degraded Stale - All the appliances serving the subnet are offline, and the overlap before they went offline was Degraded. Faulty Stale - All the appliances serving the subnet are offline, and the overlap before they went offline was Faulty.
Physical Port	The state of all ports associated with this subnet. Ready - All assigned ports are healthy. Degraded - Some assigned ports are unhealthy. Faulty - All assigned ports are unhealthy. Ready Stale - All the ports offline, and the state before they went offline was Ready. Degraded Stale - All the ports offline, and the state before they went offline was Degraded. Faulty Stale - All the ports offline, and the state before they went offline was Faulty.

Click any icon or plus sign to see more information about these subnets.

DHCP and Routing and Others sections

The following tables describe these fields.

DHCP and Routing section details

Field	Description
DHCP Server	The status of the DHCP server. Ready - The clients in this subnet are receiving DHCP addresses from the DHCP server and the leases are being renewed on time. Faulty - The DHCP address allocation and renewal is not working for the clients in this subnet. Inactive - This subnet has a DHCP server configured, but there are no active clients.
Current Status	A description of the subnet’s current status.
Last Update	The last time the status was updated. Mouse over the status icon to see the exact time and date.
Server address	The DHCP server address.
Client IP Range	The starting and ending range of the client’s IP addresses.
Lease Time	The duration of each lease.
DHCP Client List table
Client Host Name	The client’s host name.
IP Address	The client’s IP address.
MAC Address	The client’s MAC address.
Expires	When the DHCP lease expires.

Static Routing section details

Field	Description
Current Status	A description of the static routes that are configured for this subnet. Ready - This subnet has one or more static routes configured, and those networks are configured to be reachable from this subnet. Disabled - This subnet does not have any static routes configured.
Last Update	The last time static route information was updated.
Next Hop Router IP	The IP address of the static route.
Static Route List table
Subnet	The subnet associated with the static route.
Zone	The zone associated with the static route.
Via	The IP address being used to communicate with the zone.
Via Zone	The management zone name.

Dynamic Routing section details

Field	Description
Fields shown when protocol is OSPF
Current Status	Provides a status of whether peering is to the next-hop router and the routing protocol (OSPF or BGP) is functional. Ready - This subnet is configured to be an OSPF interface subnet and it is properly peered (Full/DR) with the peer OSPF router in this subnet. Faulty - This subnet is configured to be an OSPF interface subnet and it is not properly peered with the peer OSPF router in this subnet. The subnet port could have failed, the router could have failed, or the state could have changed to anything other than Full/DR.
Last Update	The last time dynamic route information was updated.
Router IP	The router’s IP address.
Router ID	The router’s ID.
Router Area	The router’s area.
Routing Table	See OSPF Routing table details for a description of the fields in this table.
OSPF Neighbor List (Last Reported)	See OSPF Neighbor List table details for a description of the fields in this table. If peering is lost, all routes are removed from the router table, but the neighbor list is kept to help troubleshoot any issues.
Fields shown when protocol is BGP
Current Status	The state of dynamic routes (number of total neighbors and the number of unreachable neighbors, if any). Ready - This subnet is configured to be a BGP interface subnet and it is properly peering with the BGP router in this subnet. Faulty - This subnet is configured to be an BGP interface subnet, but it is not properly peered with the peer BGP router in this subnet. The subnet port could have failed or the router could have failed.
Last Update	The last time dynamic route information was updated.
Router IP	The router’s IP address.
Router AS	The router’s autonomous system (AS) number.
Routing Table	See BGP Learned Routing table details for a description of the fields in this table.
BGP Neighbor List (Last Reported)	See BGP Neighbor List (Last Reported) table details for a description of the fields in this table.
BGP Advertised Routing	See BGP Advertised Routing table details for a description of the fields in this table.

Others section details

Field	Description
Overlapping Nets	Indicates whether the subnet associated with this zone is overlapping a subnet for any other zone in this organization. Both static and dynamic (discovered or learned) subnets are checked. Healthy - This subnet does not overlap with any other subnets in any other zone in this organization. Degraded - This zone is partially overlapping with another subnet in another zone in this organization. The subnet and zone is noted in the status message. Faulty - The subnet for this zone is a duplicate of another subnet for another zone in this organization. All overlapping zones are marked as Faulty. Current Overlaps - The number of complete or partial subnet overlaps. Last Update - The time since the last update. RX High Threshold - The highest level of RX port utilization. There are predefined thresholds for the RX high threshold. To view or edit this threshold, choose Organization and select the Appliance Threshold tab.
Ports	Provides the status for the ports that are associated with this zone or subnet. Ready - All ports serving this subnet are healthy. Degraded - One or more ports servicing this subnet are unhealthy or degraded. Faulty - All ports servicing this subnet are unhealthy. Current Status - Provides additional information about the port’s status. Last Update - The time since the last update. TX Low Threshold - The lowest level of TX port utilization. TX High Threshold - The highest level of TX port utilization. RX Low Threshold - The lowest level of RX port utilization.
Ports status table
Name	The port’s name.
Operational Status	The port’s status.
MAC Address	The port’s MAC address.
Port Mode	The port’s operational configuration: Disabled, Single for single zone, Multi for multizone, Uplink, or Mirrored uplink.
Zone	The zone or uplink associated with the port. If the port is associated with an uplink, the uplink is shown; if the port doesn’t belong to an uplink or zone, this value is None.
RX Bytes	Amount of RX data transferred in bytes.
TX Bytes	Amount of TX data transferred in bytes.
TX Errors	The number of TX errors in bytes.
RX Errors	The number of RX errors in bytes.
Port Health	A value based on the TX high and low, RX high and low, and TX Error and RX Error high and low thresholds. Ready - All the appliance’s ports are functioning properly. Degraded - One of more ports are not functioning properly. Faulty - One or more ports are configured as operational but are down.

Checking appliances

The Appliance Health page shows the software and hardware status of SteelConnect appliances in your organization. Select All sites to see the status for appliances in all sites, or select a site from the Site drop-down list to see appliances in a particular site.

Each row shows the status of a SteelConnect physical or virtual appliance.

Appliance Health page

Appliance Health page details

Mouse over the status icons to get the latest appliance health information. Click a status icon to open a section on the right with collapsed tables to see additional information about the appliance. Click the plus sign (+) to expand the tables.

Expanded Appliance Health page with Manageability, Resources, and Hardware sections

This table describes the fields in the Appliance Health page.

Field	Description
Appliance	The appliance type.
Connectivity	The connectivity status. Mouse over the status icon to see the following status descriptions: Ready - Appliance is online. Faulty - Appliance is offline. Disabled - Appliance is configured as a shadow appliance.
Config	The current appliance configuration status. Ready - The appliance downloaded and applied the latest configuration from SCM. Degraded - The appliance downloaded the latest configuration from SCM, but has not yet applied it. Faulty - The appliance did not get the latest configuration from SCM. Disabled - The appliance did not yet contact SCM for configuration information. Ready Stale - The appliance is currently offline, but it downloaded and applied the latest configuration before it went offline. Degraded Stale - The appliance is currently offline. At the time it went offline, it downloaded the latest configuration but did not yet apply it. Faulty Stale - The appliance is currently offline. At the time it went offline, it did not download the latest configuration from SCM. Disabled Stale - The appliance is currently offline, but it downloaded and applied the latest configuration before it went offline.
Version	The current appliance configuration. Ready - The appliance downloaded and applied the latest firmware from SCM. Degraded - The appliance downloaded the latest firmware from SCM, but has not yet applied it. Faulty - The appliance did not get the latest firmware from SCM. Disabled - The appliance did not yet contact SCM to download firmware. Ready Stale - The appliance is currently offline, but it downloaded and applied the latest firmware before it went offline. Degraded Stale - The appliance is currently offline. At the time it went offline, it downloaded the latest firmware but did not yet apply it. Faulty Stale - The appliance is currently offline. At the time it went offline it did not download the latest firmware from SCM. Disabled Stale - The appliance is currently offline, but it downloaded and applied the latest firmware at the time it went offline.
Management Interfaces	The connectivity of the appliance to management interfaces. Ready - The appliance can connect to essential management URLs. Faulty - The appliance cannot reach essential management URLs. Disabled - This is a shadow appliance and port or HA status is not available. Ready Stale - The appliance is offline but the appliance could connect to essential management URLs before it went offline. Faulty Stale - The appliance is offline but the appliance could not connect to essential management URLs before it went offline. Disabled Stale - This is a shadow appliance that is offline, and port or HA status was not available when it went offline.
Hardware	The hardware status. Ready - The appliance ports are configured and working properly. Degraded - Some, but not all, ports are over the acceptable limits of capacity or errors. Faulty - All ports are over the acceptable limits of capacity or errors. Ready Stale - The appliance is offline, and the appliance ports were configured and working properly before it went offline. Degraded Stale - The appliance is offline, but some (not all) ports were over the acceptable limits of capacity or errors before it went offline. Faulty Stale - The appliance is offline, but all ports were over the acceptable limits of capacity or errors before it went offline.
Resources	The CPU or memory resources. The default time for these fields is 5 minutes. To change the threshold settings, choose Organization, select the Appliance Threshold tab, and change the values. Ready - The appliance CPU or memory over the last 5 minutes is below the low threshold. Degraded - The appliance CPU or memory usage over the last 5 minutes is above the low threshold but below the high threshold. Faulty - The appliance CPU or memory usage over the last 5 minutes is above the high threshold. Disabled - The appliance did not report any CPU or memory data over the last 5 minutes. Ready Stale - The appliance is currently offline. Its CPU or memory usage over the last 5 minutes before going offline was below the low threshold. Degraded Stale - The appliance is currently offline. Its CPU or memory usage over the last 5 minutes before going offline was above the low threshold but below the high threshold. Faulty Stale - The appliance is currently offline. Its CPU or memory usage over the last 5 minutes before going offline was above the set high threshold. Disabled Stale - The appliance is currently offline. Before going offline, it did not report any data.

Manageability section details

Click any icon for an appliance to expand the section and view the information in this table.

Field	Description
Connectivity	Current Status - The current appliance connectivity status. Ready - The appliance can connect to the management URLs that are required for SteelConnect to function. Faulty - The appliance cannot connect to the management URLs that are required for SteelConnect to function. Disabled - The appliance did not yet report any management URL connectivity to SCM. Ready Stale - The appliance is currently offline, but before it went offline the appliance could connect to the management URLs that are required for SteelConnect to function. Faulty Stale - The appliance is currently offline, but before it went offline the appliance could not connect to the management URLs that are required for SteelConnect to function. Last Connected - The last time the appliance established or re-established a connection to SCM. IP Address - The IP address used for the last connection.
Configuration	Current Status - The current appliance configuration status. If the icon is not green, additional configuration information is provided here. Ready - The appliance downloaded and applied the latest configuration from SCM. Degraded - The appliance downloaded the latest configuration from SCM but has not yet applied it. Faulty - The appliance has not yet downloaded the latest configuration from SCM. Last Updated - The last time the appliance reported its configuration state.
Firmware	Current Status - The firmware status. Ready - The appliance has downloaded the latest firmware from SCM and has switched over to that version. Degraded - The appliance has either not yet downloaded the latest firmware from SCM, or it has not yet applied it. Faulty - The appliance is taking too long to download the latest firmware version from SCM, or the appliance has downloaded the firmware but is taking too long to apply it. Current Firmware Version - The appliance’s firmware version. Last Firmware Switch - The last time that SCM requested the appliance to update the firmware.
Management Interfaces	The connectivity of the appliance to Management URLs such as core server, SCM management server, DNS servers, and IP reflectors. If connectivity to any of these URLs are down, the status is shown in a Faulty state. Note: The SCM SSH and SCM Event channels are shown for reporting purposes only. If these URLs are unreachable, this information is not reported. Ready - The appliance can connect to essential management URLs. Faulty - The appliance cannot reach essential management URLs. Disabled - This is a shadow appliance and port or HA status is not available. Ready Stale - The appliance is offline but the appliance could connect to essential management URLs before it went offline. Faulty Stale - The appliance is offline but the appliance could not connect to essential management URLs before it went offline. Disabled Stale - This is a shadow appliance that is offline, and port or HA status was not available when it went offline.
Connectivity to Management URLs table
Service	The service name.
Protocol/Port	The protocols and port used by the management URL.
Destination	The URL or IP address used by the management URL.
Status	The reachability status of the field.

Resources section details

Field	Description
CPU Utilization	The CPU usage percentage. To view or edit these threshold levels, choose Organization and select the Appliance Threshold tab. The default time is 5 minutes. Ready - CPU utilization is below the Low threshold. Degraded - CPU utilization is above the Low threshold but below the High threshold. Faulty - CPU utilization is above the High threshold. This section contains the following additional fields: Additional Information - More information about the appliance’s current CPU status. Last updated - The last time an appliance sent an update. Threshold levels - The CPU’s safe and critical levels.
Memory Utilization	The memory usage percentage. To view or edit these threshold levels, choose Organization and select the Appliance Threshold tab. The default time is 5 minutes. Ready - Average memory usage is below the Low threshold. Degraded - Average memory usage is above the Low threshold but below the High threshold. Faulty - Average memory usage is above High threshold. This section contains the following additional fields: Additional information - The appliance’s current memory status. Last updated - The last time an appliance sent an update. Threshold levels - Memory safe and critical levels.

Hardware section details

Field	Description
Physical Ports	The health status of the ports. All Ports Healthy - All ports serving this appliance are configured and functional. Some Port(s) Faulty/Degraded- Some of the configured ports are offline or are above the configured thresholds. All Port(s) Faulty/Degraded- All of the configured ports are offline or are above the configured thresholds Shadow Appliance- This appliance has been configured as a shadow appliance. Appliance Offline - This appliance is offline.
Current Status	More information about the status of the ports.
TX Low Threshold	The lowest level of TX port utilization. The threshold levels are shown as a percentage.
TX High Threshold	The highest level of TX port utilization.
RX Low Threshold	RX Low Threshold - The lowest level of RX port utilization.
RX High Threshold	The highest level of RX port utilization. There are predefined thresholds for the TX and RX Low and High thresholds. To view or edit these thresholds, choose Organization and select the Appliance Threshold tab.
Last Update	The last time an appliance sent an update.
Fields in the Ports Status table
Name	The port’s name.
Operational Status	The port’s status. Up - The port is configured and operational. Down - The port is configured, but is not operational. Disabled - The port has not been configured to be associated with an uplink or a zone.
MAC Address	The port’s MAC address.
Port Mode	The port’s operational configuration: Disabled, Single for single zone, Multi for multizone, Uplink, or Mirrored uplink.
Zone	The zone or uplink associated with the port. It the ports is associated with an uplink, the uplink is shown; if the port doesn’t belong to an uplink or zone, this value is None.
RX Bytes	The amount of RX data transferred in bytes over the configured time interval (default 5 minutes).
TX Bytes	The amount of TX data transferred in bytes over the configured time interval (default 5 minutes).
TX Errors	The number of TX errors over the configured time interval (default 5 minutes).
RX Errors	The number of RX errors over the configured time interval (default 5 minutes).
Port Health	A value based on the TX high and low, RX high and low, and TX Error and RX Error high and low thresholds. Ready - All the appliance’s ports are in Ready state. Degraded - One of more ports are in Degraded state. Faulty - One or more ports are configured as operational but are Down.
High Availability	The appliance’s HA status. Ready - All SteelConnect HA appliances are operational. Single Appliance - This appliance is not configured for High Availability. Degraded- One or more SteelConnect HA appliances are not operational. Faulty - All SteelConnect HA appliances are not operational. Disabled - One or more SteelConnect appliances cannot be configured as an HA appliance. Current Status - The appliance’s HA status (Master, Backup, or Single Appliance). Partner Status - The partner appliance’s HA status (Master or Backup). Partner Connectivity - The connectivity status of the partner appliance (reachable or unreachable). Last Failover - The time of the last failover. Alive uplink count - The number of uplinks that are active between the master and backup appliance.
Fields in the Tracked Ports table
	Interface - The interface’s name. Status - The appliance’s status (up or down).

Networking section details

This section provides Forwarding Information Base (FIB) and Address Resolution Protocol (ARP) table information for the underlay network for SteelHead SD 570-SD, 770-SD, and 3070-SD appliances, and the SDI-2030 gateway located at the branch. To see overlay FIB information, as well as BGP and OSPF routing information, navigate to the Routing Tables area under the main Health Check area. See Checking appliance BGP, OSPF, and FIB information for details.

Field	Description
Underlay FIB	The FIB table provides interface-specific information needed for packet routing. The status of the FIB table used in the underlay network for the selected appliance. FIB table functional FIB table partially degraded FIB table degraded
Underlay FIB table
Appliance	The name of the appliance.
Model	The model of the appliance.
Site	The site where the appliance is deployed.
Number of entries	The number of FIB table entries for the appliance.

Field	Description
Underlay ARP	The status of the ARP table used in the underlay network for the selected appliance. ARP table functional ARP table partially degraded ARP table degraded
Underlay ARP table
Destination MAC	The MAC address of the ARP destination.
Destination Port	The destination’s port.
Gateway	The gateway’s IP address.
VLAN	The VLAN number.
MTU	The maximum transmission unit (MTU) for that interface.