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 by site

•Checking proxy tunnels

•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 proxy service tunnels, such as Zscaler and Cloudi-Fi, online?

•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 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 Routes page provides a high-level SD-WAN overview. The Proxy Tunnels page provides the health status of the Zscaler and Cloudi-Fi proxy service tunnels. More detailed networking information is provided in the Uplink Health and Zone Health pages. The lowest layer, Appliance Health, gives the physical or virtual gateway 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 Zones 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.

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 Check page arranges the system health conditions 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 Routes page, including icon definitions.

The Tunnel Health page provides additional information about overlay networks between sites. See Checking overlay routes by site 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 Down.

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

•Proxies - Provides the health status of the proxy service tunnels, such as Zscaler and Cloudi-Fi, for an organization. See Checking proxy tunnels for more information about the Proxy Tunnels page, including icon definitions.

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

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

–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 Down.

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

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

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

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

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

–Zones down - The number of subnets that are showing a health condition of Down.

–Zones 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 Down.

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

Checking network overlays

The Overlay Routes 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 and SteelHead SD appliances.

The initial view shows all source sites in the organization. To view information for a site, select a site from the Source Site drop-down list.

The initial view 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 initial view shows a status of Degraded in the Tunnel Health column of the table.

Overlay Routes page

This table describes Overlay Routes page details.

Field	Description
Source Site	The name of the source site.
Appliance	The name and type of appliance.
Uplinks	The uplink names.
Reachability Status	The reachability status of the site. Up - At least one tunnel from this site is up. Down - All tunnels are down.
Tunnel Health	Displays an icon with the overall tunnel statistics. Up - All tunnels are up. Degraded - One or more tunnels are down. The number of down tunnels out of all tunnels appears. Down - All tunnels are down.

Click View Tunnels to view Tunnel Health for the source site.

Checking overlay routes by site

The Overlay Routes page shows the health of the overlay networks between sites in your organization, including their reachability status and health.

To filter results, enter the source site name in the Source Site text box. Partial searches are supported.

If one or more tunnels are down in a site, that site is shown as Degraded; the number of down tunnels out of all tunnels appears.

Overlay routes by site

This table describes the fields in the Overlay Routes table.

Field	Description
Source Site	The name of the source sites.
Appliance	The name and type of appliance.
Uplinks	The uplink names.
Reachability Status	The reachability status of the overlay tunnels between sites. Up - All tunnels are up. Down - One or more tunnels are down.
Tunnel Health (down/total)	The tunnel health of the overlay tunnels between sites. Up - All tunnels are up. Degraded - One or more tunnels are down. The number of down tunnels out of all tunnels appears. Down - All tunnels are down.

To find overlay tunnel information for a source site, click View Tunnels for the source site to open the Tunnel Health page and see the specific tunnels corresponding to that site. The source site will be preselected.

Checking tunnel health by tunnel

The Tunnel Health page shows the number of overlay tunnels that are configured between the source site and destination sites and the status of those tunnels.

The Tunnel Health page shows twice the number of tunnels that you see on the dashboard map and in the Health Check Summary window. The dashboard 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 Tunnel Status page counts tunnels between sites as two tunnels—one tunnel from the source site to the destination site, and one tunnel from the destination site to the source site.

Tunnel Health page

Tunnel status details shows the result of clicking anywhere in the row for the Branch10 site to open the Tunnel Status window. Here you see the status of the overlay tunnels that have been configured between the HQ source site and the destination sites.

For a hub-and-spoke network topology configured with a master site connected to leaf nodes, the page shows only the tunnels between the master site and the leaf nodes. It doesn’t show leaf-to-leaf nodes. However, a master site shows all of the tunnels to its leaf nodes along with any other nodes in the topology that haven’t been configured as a master or a leaf.

Tunnel Status tab

Tunnel status details

This table describes the fields in the Tunnel Status table.

Field	Description
Source	Shows the name of the source appliance, site, uplink, and WAN.
Destination	Shows the name of the destination appliance, site, uplink, and WAN.

This table describes the fields listed under Throughput statistics.

Field	Description
QoS class	The QoS priority: Urgent, High, Normal, or Low.
RX	The received tunnel speed in bits per second since the last time the statistics were cleared.
RX (%)	The percentage of RX (bps) within each QoS class. In the Combined row, the percentage value of this field should be 100%.
TX	The transmitted tunnel speed in bits per second since the last time the statistics were cleared.
TX (%)	The percentage of TX (bps) within each QoS class. In the Combined row, the percentage value of this field should be 100%.

Path Quality tab

Click the Path Quality tab to view path quality statistics.

Path quality details

This table describes the Path Quality details.

Field	Description
Path quality	The overall path quality (Excellent, Good, Fair, or Poor), derived from the threshold values used by the appliances to apply path selection. SteelHead SD appliances use the Common Applications Kept Enhanced (CAKE) scheduler, and these values aren’t configurable. For more details about CAKE, see How does QoS for gateways work?.
Last Updated	The last time the path quality statistics were updated.
QoS class	The QoS priority: Urgent, High, Normal, or Low.
Latency Round Trip (ms)	The amount of delay for a packet traveling from one site to another and back again.
Jitter (ms)	The amount of change in one-way packet delay. When the exact amount of delay occurs from one site to another, there is zero jitter. When the delay is inconsistent, jitter is the amount of delay that varied from previous measurements. Jitter is most likely to occur on either slow or heavily congested links.
Packet Loss (%)	Shows any one-way packet loss. Any number indicates a possible problem.

Destination Networks tab

Click the Destination Networks tab to view destination networks available from that site, including their IP addresses and reachability.

Destination networks details

This table describes the Destination Network details.

Field	Description
Destination networks reachability	Displays the number of destinations that are not reachable.
Last Updated	The last time the destination network statistics were updated.
IP Address	The IP address of the destination network.
Status	The reachability status of the destination networks. Up - At least one tunnel to this destination network is up. Down - All tunnels are down.

Checking proxy tunnels

The Proxy Tunnels page shows the health of the proxy service tunnels, such as Zscaler and Cloudi-Fi, for an organization.

You can see the tunnel and gateway status for the tunnels.

Proxy Tunnels page

Select the site name and the Tunnels tab to display a list of proxy tunnels.

Select the site name and the Gateways tab to display a list of gateways corresponding to the site.

This table describes the Proxy Tunnels page details.

Field	Description
Tunnel Status	Indicates the health state. Online - The tunnel is online. Offline - The tunnel is offline.
Gateway Status	Shows the gateway status. Online - The gateway is online. Offline - The gateway is offline. 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.

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 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.
Model	The model of the appliance.
Site	The site where the appliance is deployed.
Local AS	The local autonomous system (AS) number.
Peer	The name of the peer.
Peer IP	The IP address of the peer.
Remote AS	The remote AS number.
Status	The appliance’s status (Online, Offline, or Recovery).
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	The total number of neighbors that have been configured by the appliance.
Routes learnt	The number of routes that have been learned by the appliance.
Status	The appliance’s status (Online, Offline, or Recovery).

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
Appliance	The appliance serial number.
Model	The appliance model.
Site	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. •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. The OSPF neigbor is the designated router (DR).` •Full/Backup - The appliances have exchanged and synchronized routing information and formed an adjacency. OSPF is fully functional. The OSPF neigbor is the backup designated router (BDR).

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.
Status	The appliance’s status (online or offline).

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 description to see the exact time and date.
Upload Usage	Data being uploaded in kilobits per second (kbps) and total bandwidth available for uploading.
Download Usage	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/min	Amount of RX data transferred in bytes.
TX Bytes/min	Amount of TX data transferred in bytes.
TX Errors/min	The number of TX errors in bytes.
RX Errors/min	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.

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.
Conflicts	The conflicting net status. Either None, or the number of conflicting 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 conflicts 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 conflict before they went offline was Ready. Degraded Stale - All the appliances serving the subnet are offline, and the conflict before they went offline was Degraded. Faulty Stale - All the appliances serving the subnet are offline, and the conflict 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.

Others section details

Field	Description
Conflicting Nets	Indicates whether the subnet associated with this zone is conflicting a subnet for any other zone in this organization. Both static and dynamic learned subnets are checked. Healthy - This subnet does not conflict with any other subnets in any other zone in this organization. Degraded - This zone is partially conflicting 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 conflicting zones are marked as Faulty. Current Conflicts - The number of complete or partial subnet conflicts. Last Update - The time since the last update.
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. 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 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 gateway.

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

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 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, and some ports were over the acceptable limits of capacity or errors before it went offline. Faulty Stale - The appliance is offline, and all ports were over the acceptable limits of capacity or errors before it went offline.
Resources	The appliance CPU use, memory use, and temperature. By default, SteelConnect monitors the appliance resources every 5 minutes. To change the CPU or memory thresholds, choose Organization, select the Appliance Threshold tab, and change the Threshold time value. The appliance temperature threshold varies by appliance model and is not configurable. Temperature is not reported for SDI-130, SDI-330, and SDI-1030 gateways and SDI-VGW virtual gateways. For temperature details, see Monitoring the appliance CPU temperature and the SteelHead SD Installation Guide. Ready - The appliance CPU use, memory use, or temperature over the last 5 minutes is below the low threshold. Degraded - The appliance CPU use, memory use, or temperature over the last 5 minutes is above the low threshold but below the high threshold. Faulty - The appliance CPU use, memory use, or temperature over the last 5 minutes is above the high threshold. Disabled - The appliance did not report any CPU, memory, or appliance temperature data over the last 5 minutes. Ready Stale - The appliance is currently offline. Its CPU use, memory use, or temperature over the last 5 minutes before going offline was below the low threshold. Degraded Stale - The appliance is currently offline. Its CPU use, memory use, or temperature 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 use, memory use, or temperature 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/min	The amount of RX data transferred in bytes per minute.
TX Bytes/min	The amount of TX data transferred in bytes per minute.
TX Errors/min	The number of TX errors per minute.
RX Errors/min	The number of RX errors per minute.
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 proxy tunnels 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.