H3C S7500 Series Ethernet Switches Command Manual

Command Manual – Routing Protocol
H3C S7500 Series Ethernet Switches Chapter 4 Integrated IS-IS Configuration Commands
4-35
undo summary ip-address mask [ level-1 | level-1-2 | level-2 ]
View
IS-IS view
Parameters
ip-address: Address range to generate summarized routes.
mask: Mask of an aggregate route.
level-1: Specifies to summarize only the routes imported to level-1 area.
level-1-2: Specifies to summarize all the routes imported to level-1 area and backbone
area.
level-2: Specifies to summarize only the routes imported to backbone area.
If none of the level-1 keyword, level-2 keyword, and level-1-2 keyword is specified, the
routes imported to backbone area are summarized.
Description
Use the summary command to configure IS-IS to generate summarized routes.
Use the undo summary command to disable summary.
No route is summarized by default.
You can summarize the routes having the same next hop into one route to reduce the
routing table size, as well as the LSP and LSDB generated by the router. It is possible to
summarize native IS-IS routes and imported routes. After summarization, the route cost
is the minimum cost of those summarized routes.
Examples
# Set a summarized route 202.0.0.0/8.
<H3C> system-view
System View: return to User View with Ctrl+Z.
[H3C] isis
[H3C-isis] summary 202.0.0.0 255.0.0.0
4.1.41 timer lsp-max-age
Syntax
timer lsp-max-age seconds
undo timer lsp-max-age
View
IS-IS view