Brocade Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide (Supporting R05.6.00) - Manual (Page 625)

Multi-Service IronWare Multiprotocol Label Switch (MPLS) Configuration Guide 601
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IS-IS shortcuts
5
To enable announce, enter the following command on an LSP that is not yet enabled.
Brocade(config-mpls-lsp-tomu3)# shortcuts isis level2 announce
When the tunnel is enabled, disable it before enabling announce, then re-enable the tunnel. For
example.
Brocade(config-mpls-lsp-tomu3)# disable
Disconnecting signaled LSP tomu3
Brocade(config-mpls-lsp-tomu3)# shortcuts isis level2 announce
Brocade(config-mpls-lsp-tomu3)# enable
Connecting signaled LSP tomu3
These commands enable the system to advertise IS-IS shortcuts. Since an announce metric is not
explicitly specified in this example, IS-IS uses the default announce metric of 10. To configure an
announce metric other than 10, refer to
“Configuring the announce metric” .
Syntax: [no] shortcuts isis level1 | level2 announce
Enter the [no] form of the command to disable advertisement of IS-IS shortcuts. IS-IS shortcuts are
still enabled, but are no longer advertised in the IS-IS database.
Configuring the announce metric
The announce metric is described in “The announce metric” on page 598.
To configure an announce metric, enter a command such as the following at the MPLS LSP level of
the CLI.
Brocade(config-mpls-lsp-tomu3)# shortcuts isis level2 announce announce-metric 20
Syntax: [no] shortcuts isis level1 | level2 announce announce-metric num
Enter the [no] form of the command to return to the default announce metric value of 10. IS-IS
shortcuts are still enabled, however the [no] form of the command simply reverts to the default
announce metric.
For num, enter a value from 1 – 16777215. The default is 10.
The announce metric is displayed in the output of the show isis shortcuts command. When the LSP
tunnel is not announced, a – (dash) is displayed in the announce metric field.
Configuring the relative metric
The relative metric is described in “The relative metric” on page 598.
When announce is not enabled and a metric is not explicitly configured under the LSP configuration
mode of the CLI, the relative metric is used to compute the shortcut cost.
To configure the relative metric, enter a command such as the following at the MPLS LSP level of
the CLI.
Brocade(config-mpls-lsp-tomu3)# shortcuts isis level2 relative-metric -5