Brocade Multi-Service IronWare Routing Configuration Guide (Supporting R05.6.00) - Manual (Page 289)

Multi-Service IronWare Routing Configuration Guide 261
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Globally configuring IS-IS on a device
The Brocade device’s hostname is displayed in each CLI command prompt, for example.
Brocade(config-isis-router)#
The name mapping feature is enabled by default. If you want to disable name mapping, enter the
following command.
Brocade(config-isis-router)# no hostname
Syntax: [no] hostname
To display the name mappings, enter the show isis hostname command.
Changing the Sequence Numbers PDU interval
A Complete Sequence Numbers PDU (CSNP) is a complete list of the LSPs in the Designated IS’ link
state database. The CSNP contains a list of all the LSPs in the database, as well as other
information that helps IS neighbors determine whether their LSP databases are in sync with one
another. The Designated IS sends CSNPs to the broadcast interface. Level-1 and Level-2 each have
their own Designated IS.
A Partial Sequence Numbers PDU (PSNP) is a partial list of LSPs. ISs other than the Designated IS
(that is, the non-Designated ISs) send PSNPs to the broadcast interface.
The CSNP interval specifies how often the Designated IS sends a CSNP to the broadcast interface.
Likewise, the PSNP interval specifies how often other ISs (non-Designated ISs) send a PSNP to the
broadcast interface.
The interval you can configure on the Brocade device applies to both Level-1 and Level-2 CSNPs
and PSNPs. The default interval is 10 seconds. You can set the interval to a value from 0 – 65535
seconds.
To change the interval, enter a command such as the following.
Brocade(config-isis-router)# csnp-interval 15
Syntax: [no] csnp-interval secs
The secs parameter specifies the interval and can be from 0 – 65535 seconds. The default is 10
seconds.
NOTE
PSNP has a default interval of 2 seconds and is not configurable.
Changing the maximum LSP lifetime
The maximum LSP lifetime is the maximum number of seconds an unrefreshed LSP can remain in
the Brocade device’s LSP database. The maximum LSP lifetime can be from 1 – 65535 seconds.
The default is 1200 seconds (20 minutes).
To change the maximum LSP lifetime to 2400 seconds, enter a command such as the following.
Brocade(config-isis-router)# max-lsp-lifetime 2400
Syntax: [no] max-lsp-lifetime secs
The secs parameter specifies the maximum LSP lifetime and can be from 1 – 65535 seconds. The
default is 1200 seconds (20 minutes).