topology site uplink
Configures the uplink parameters for a remote site.
Syntax
topology site {<site-name> | local | default-site} uplink <uplink-name> network <name> bandwidth_up <kbps> bandwidth_down <kbps> [gateway <ip-address>] [probing_bw <kbps>]
Parameters
<site-name> | Site name: for example, data center. |
local | Specifies the local site name, which is where the SteelHead is located. |
default-site | Specifies the default site, which is the match anything, catch-all site that is used if nothing else matches. This site has a subnet of 0.0.0.0/0. You do not need to add a remote site if you only have one remote site and the default site is suitable. The default site cannot be removed. |
<uplink-name> | Specifies the uplink name. |
network <name> | Specifies the network name. My_WAN is the default network name. |
bandwidth_up <kbps> | Specifies the upload bandwidth in kilobits per second for the uplink. |
bandwidth_down <kbps> | Specifies the download bandwidth in kilobits per second for the uplink. |
gateway <ip-address> | Specifies the gateway IP address. |
probing_bw <kbps> | Specifies the path selection probing bandwidth in kilobits per second. This value rate limits the probes sent by the SteelHead on a per uplink basis to 128 kbps per uplink by default. This setting only applies to probes sent by a SteelHead but does not apply to incoming probes. |
Usage
An uplink is a physical connection from a site to a network, with its own upstream and downstream bandwidths. It is the last network segment connecting the local site to a WAN network. A site can have single or multiple uplinks to the same network and can connect to multiple networks.
RiOS 9.0 determines the destination site using a longest-prefix match on the site subnets. For example, if you define site 1 with 10.0.0.0/8 and site 2 with 10.1.0.0/16, then traffic to 10.1.1.1 matches site 2, not site 1. Consequently, the default site defined as 0.0.0.0 only matches traffic that does not match any other site subnets. This is in contrast to RiOS 8.6 and earlier, where you configured sites in an explicit order and the first-matching subnet indicated a match for that site.
Remote uplinks are important to QoS because they define the available bandwidth for remote sites. RiOS uses the specified bandwidth definition to precompute the end-to-end bottleneck bandwidth for QoS.
Example
amnesiac (config) # topology site dc1 uplink inpath0_0 network My_WAN bandwidth_up 1000000 bandwidth_down 1000000 gateway 0.0.0.0 probing_bw 122
Product
SteelHead CX, SteelHead EX, SteelHead-v, SteelHead-c
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