Cisco Catalyst 3750-E Software Configuration Manual page 1050

Configuring ISO CLNS Routing
Command
Step 14
prc-interval prc-max-wait
[prc-initial-wait prc-second-wait]
Step 15 log-adjacency-changes [all]
Step 16 lsp-mtu size
Step 17 partition avoidance
Step 18 end
Step 19 show clns
Step 20 copy running-config startup-config
To disable default route generation, use the no default-information originate router configuration
command. Use the no area-password or no domain-password router configuration command to disable
passwords. To disable LSP MTU settings, use the no lsp mtu router configuration command. To return
to the default conditions for summary addressing, LSP refresh interval, LSP lifetime, LSP timers, SFP
timers, and PRC timers, use the no form of the commands. Use the no partition avoidance router
configuration command to disable the output format.
Configuring IS-IS Interface Parameters
You can optionally configure certain interface-specific IS-IS parameters, independently from other
attached routers. However, if you change some values from the defaults, such as multipliers and time
intervals, it makes sense to also change them on multiple routers and interfaces. Most of the interface
parameters can be configured for level 1, level 2, or both.
These are some interface level parameters you can configure:
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Catalyst 3750-E and 3560-E Switch Software Configuration Guide
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Purpose
(Optional) Sets IS-IS partial route computation (PRC) throttling timers.
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(Optional) Set the router to log IS-IS adjacency state changes. Enter all to
include all changes generated by events that are not related to the
Intermediate System-to-Intermediate System Hellos, including End
System-to-Intermediate System PDUs and link state packets (LSPs).
(Optional) Specify the maximum LSP packet size in bytes. The range is 128
to 4352; the default is 1497 bytes.
Note
(Optional) Causes an IS-IS Level 1-2 border router to stop advertising the
Level 1 area prefix into the Level 2 backbone when full connectivity is lost
among the border router, all adjacent level 1 routers, and end hosts.
Return to privileged EXEC mode.
Verify your entries.
(Optional) Save your entries in the configuration file.
The default metric on the interface, which is used as a value for the IS-IS metric and assigned when
there is no quality of service (QoS) routing performed.
The hello interval (length of time between hello packets sent on the interface) or the default hello
packet multiplier used on the interface to determine the hold time sent in IS-IS hello packets. The
hold time determines how long a neighbor waits for another hello packet before declaring the
neighbor down. This determines how quickly a failed link or neighbor is detected so that routes can
be recalculated. Change the hello-multiplier in circumstances where hello packets are lost
prc-max-wait—the maximum interval (in seconds) between two
consecutive PRC calculations. The range is 1 to 120; the default is 5.
prc-initial-wait—the initial PRC calculation delay (in milliseconds)
after a topology change. The range is 1 to 10,000; the default is 2000.
prc-second-wait—the hold time between the first and second PRC
calculation (in milliseconds). The range is 1 to 10,000; the default is
5000.
If any link in the network has a reduced MTU size, you must change
the LSP MTU size on all routers in the network.
Chapter 40 Configuring IP Unicast Routing
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