Specifying A Priority For Is-Is; Configuring The Maximum Number Of Ecmp Routes; Configuring Is-Is Route Summarization - HPE 5800 Series Configuration Manual

Step
Enter system view.
1.
Enter IS-IS view.
2.
Specify an IS-IS cost
3.
style.
Enable automatic IS-IS
4.
cost calculation.
Configure a bandwidth
5.
reference value for
automatic IS-IS cost
calculation.

Specifying a priority for IS-IS

A router can run multiple routing protocols. When routes to the same destination are found by
multiple routing protocols, the route learned by the protocol with the highest priority is adopted. You
can reference a routing policy to specify a priority for specific routes. For information about routing
policy, see "Configuring routing
To configure the priority of IS-IS:
Step
Enter system view.
1.
Enter IS-IS view.
2.
Specify a priority for IS-IS.
3.

Configuring the maximum number of ECMP routes

Perform this task to implement load sharing over ECMP routes.
To configure the maximum number of ECMP routes:
Step
Enter system view.
1.
Enter IS-IS view.
2.
Specify the maximum
3.
number of ECMP routes for
load balancing.

Configuring IS-IS route summarization

This task allows you to configure a summary route, so routes falling into the network range of the
summary route are summarized into one route for advertisement. Doing so can reduce the size of
routing tables, as well as the scale of LSP and LSDB. Both IS-IS routes and redistributed routes can
be summarized.
Command
system-view
isis [ process-id ] [ vpn-instance
vpn-instance-name ]
cost-style { wide | wide-compatible }
auto-cost enable
bandwidth-reference value
policies."
Command
system-view
isis [ process-id ] [ vpn-instance
vpn-instance-name ]
preference { route-policy route-policy-name |
preference } *
Command
system-view
isis [ process-id ] [ vpn-instance
vpn-instance-name ]
maximum load-balancing number
129
Remarks
N/A
N/A
narrow by default.
Disabled by default.
Optional.
100 Mbps by default.
Remarks
N/A
N/A
15 by default.
Remarks
N/A
N/A
By default, the
maximum number of
ECMP routes for load
balancing is 8.