Reference Guide

Defaults level-1-2
Command Modes INTERFACE
Command History
This guide is platform-specific. For command information about other platforms, refer to the
relevant FTOS Command Line Reference Guide .
The following is a list of the FTOS version history for this command.
Version 8.3.19.0 Introduced on the S4820T.
Version 8.3.12.0 Introduced on the S4810.
Version 8.3.11.1 Introduced on the Z9000.
Usage
Information
Because the default establishes Level 1 and Level 2 adjacencies, you do not need to configure
this command. Routers in an IS-IS system must be configured as a Level 1-only, Level 1-2, or
Level 2-only system.
Only configure interfaces as Level 1 or Level 2 on routers that are between areas (for example,
a Level 1-2 router) to prevent the software from sending unused hello packets and wasting
bandwidth.
isis csnp-interval
Configure the IS-IS complete sequence number PDU (CSNP) interval on an interface.
S4820T
Syntax
isis csnp-interval seconds [level-1 | level-2]
To return to the default values, use the no isis csnp-interval [seconds]
[level-1 | level-2] command.
Parameters
seconds Interval of transmission time between CSNPs on multi-access
networks for the designated intermediate system. The range is from 0
to 65535. The default is 10.
level-1 (OPTIONAL) Independently configures the interval of time between
transmission of CSNPs for Level 1.
level-2 (OPTIONAL) Independently configures the interval of time between
transmission of CSNPs for Level 2.
Defaults seconds = 10; level-1 (if not otherwise specified)
Command Modes INTERFACE
Command History
This guide is platform-specific. For command information about other platforms, refer to the
relevant FTOS Command Line Reference Guide .
The following is a list of the FTOS version history for this command.
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