R0106-HP MSR Router Series Layer 3 - IP Routing Configuration Guide(V7)

142
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter IS-IS IPv4 unicast address
family view or IS-IS IPv4 unicast
topology view.
• Enter IS-IS IPv4 unicast address family
view:
a. isis [ process-id ] [ vpn-instance
vpn-instance-name ]
b. cost-style { wide | wide-compatible }
c. address-family ipv4 [ unicast ]
• Enter IS-IS IPv4 unicast topology view:
d. isis [ process-id ] [ vpn-instance
vpn-instance-name ]
e. cost-style { wide | wide-compatible }
f. address-family ipv4 [ unicast ]
g. topology topo-name tid tid
Use either method.
3. Specify the maximum number
of ECMP routes.
maximum load-balancing number
By default, the
maximum number of
ECMP routes is 32.
Configuring IS-IS route summarization
Perform this task to summarize specific routes, including IS-IS routes and redistributed routes, into a single
route. Route summarization can reduce the routing table size and the LSDB scale.
Route summarization applies only to locally generated LSPs. The cost of the summary route is the lowest
one among the costs of the more-specific routes.
To configure route summarization:
Ste
p
Command Remarks
1. Enter system view.
system-view N/A
2. Enter IS-IS IPv4 unicast
address family view or
IS-IS IPv4 unicast
topology view.
• Enter IS-IS IPv4 unicast address family
view:
a. isis [ process-id ] [ vpn-instance
vpn-instance-name ]
b. cost-style { wide | wide-compatible }
c. address-family ipv4 [ unicast ]
• Enter IS-IS IPv4 unicast topology view:
d. isis [ process-id ] [ vpn-instance
vpn-instance-name ]
e. cost-style { wide | wide-compatible }
f. address-family ipv4 [ unicast ]
g. topology topo-name tid tid
Use either method.
3. Configure IS-IS route
summarization.
summary ip-address { mask-length | mask }
[ avoid-feedback | generate_null0_route |
[ level-1 | level-1-2 | level-2 ] | tag tag ] *
By default, route summarization
is not configured.