5-59
Description
Use the
summary
command to configure a summary route.
Use the
undo summary
command to remove a summary route.
No summarization is configured by default.
If no level is specified, only the
level-2
routes will be summarized by default.
You can summarize multiple contiguous networks into a single network to reduce the size of the
routing table, as well as that of LSP and LSDB generated by the router. It is allowed to summarize
native IS-IS routes and redistributed routes. After summarization, the cost of the summary route is the
smallest cost of those summarized routes.
Note that the router summarizes only routes in local LSPs.
Examples
# Configure a summary route of 202.0.0.0/8.
<Sysname> system-view
[Sysname] isis 1
[Sysname-isis-1] summary 202.0.0.0 255.0.0.0
timer lsp-generation
Syntax
timer lsp-generation maximum-interval
[
initial-interval
[
second-wait-interval
] ] [
level-1
|
level-2
]
undo timer lsp-generation
[
level-1
|
level-2
]
View
IS-IS view
Default Level
2: System level
Parameters
maximum-interval
: Maximum wait interval in seconds for generating IS-IS LSPs, in the range 1 to 120.
initial-interval
: Initial wait interval in milliseconds before generating the first IS-IS LSP, in the range 10
to 60000. The default is 0.
second-wait-interval
: Wait interval in milliseconds before generating the second LSP, in the range 10
to 60000. The default is 0.
level-1
: Applies the intervals to Level-1.
level-2
: Applies the intervals to Level-2 .If no level is specified, the specified intervals apply to both
Level-1 and Level-2.
Description
Use the
timer lsp-generation
command to specify the wait interval before generating IS-IS LSPs.
Use the
undo timer lsp-generation
command to restore the default.
By default, the wait interval before LSP generation is 2 seconds.
Note that:
1) If only the maximum interval is specified, IS-IS waits the maximum interval before generating an
LSP.