Command Manual – Routing Protocol
Quidway S8500 Series Routing Switches Chapter 4 Integrated IS-IS Configuration Commands
Huawei Technologies Proprietary
4-36
Description
Use the summary command to configure to summarize IS-IS routes.
Use the undo summary command to cancel the summarization.
By default, no routes will be summarized.
Similarly, the routes with the same next hops can be summarized into one route. In this
way, the sizes of the routing table, LSP packets and LSDB are reduced. Among them,
the summarized route can be either a route found by IS-IS protocol, or an imported
route. Furthermore, the cost value of the summarized route adopts the smallest cost
among all the routes summarized.
Example
# Set a summarized route of 202.0.0.0/8.
[Quidway-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.
Description
Use the timer lsp-max-age command to configure the maximum lifetime of an LSP
generated by the current router.
Use the undo timer lsp-max-age command to restore the default value.
When the router generates an LSP for the system, it adds the maximum lifetime to it.
When other routers receive this LSP, the lifetime of the LSP decreases continuously as
time goes by. When this value reaches zero, the LSP times out. If no update is received
before that, the timeout LSP will be deleted from the LSDB.
Related command: timer lsp-refresh.
Example
# Set the lifetime of an LSP generated by the current system to 25 minutes, i.e., 1500
seconds.
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