Command Reference Guide

3Com Router 3000 Ethernet Family
Command Reference Guide
Chapter 4 Integrated IS-IS Configuration Commands
3Com Corporation
4-35
View
IS-IS view
Parameter
ip-address: Address segment of the routes to be aggregated.
mask: Aggregated route mask.
level-1: Aggregates the routes redistributed into Level-1.
level-1-2: Aggregates the routes redistributed to both areas and backbone network.
level-2: Aggregates the routes redistributed to backbone network only.
Description
Use the summary command to configure IS-IS route summary.
Use the undo summary command to cancel the summary.
By default, no routes will be summarized.
Similarly, the routes with the same next hops can be aggregated into one route. In this
way, the sizes of the routing table, LSP packets and LSDB are reduced. Among them,
the aggregated route can be either a route found by IS-IS protocol, or an redistributed
route. Furthermore, the cost value of the aggregated route adopts the smallest cost of
the routes aggregated.
Example
# Set a route summary of 202.0.0.0/8.
[3Com -isis] summary 202.0.0.0 255.0.0.0
4.1.43 timer lsp-max-age
Syntax
timer lsp-max-age seconds
undo timer lsp-max-age
View
IS-IS view
Parameter
seconds: Specifies the maximum lifetime of LSP, measured in seconds. The range is 1
to 65535. The default value is 1200 seconds.