H3C Technologies H3C S7500E Series Switches - Manual (Page 167)

5-22
To do… Use the command… Remarks
Enable automatic IS-IS cost
calculation
auto-cost enable
Required
Disabled by default
Configure a bandwidth
reference value for automatic
IS-IS cost calculation
bandwidth-reference value
Optional
100 Mbps by default
Specifying a Priority for IS-IS
A router may 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 wins. You can reference a
routing policy to specify a priority for specific routes. For information about routing policy, see Routing
Policy Configuration in the Layer 3 - IP Routing Configuration Guide.
Follow these steps to configure the priority of IS-IS.
To do… Use the command… Remarks
Enter system view system-view ––
Enter IS-IS view
isis [ process-id ] [ vpn-instance
vpn-instance-name ]
––
Specify a priority for IS-IS
preference { route-policy route-policy-name |
preference } *
Required
15 by default
Configuring the Maximum Number of Equal Cost Routes
If there are multiple equal cost routes to the same destination, the traffic can be load balanced to
enhance efficiency.
Follow these steps to configure the maximum number of equal cost routes:
To do… Use the command… Remarks
Enter system view system-view ––
Enter IS-IS view
isis [ process-id ] [ vpn-instance
vpn-instance-name ]
––
Specify the maximum number of
equal cost routes for load
balancing
maximum load-balancing number
Required
The number range and
default vary by device.