3Com S7902E, Configuration Manual

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To do… Use the command… Remarks
Specify a cost for the
interface
isis cost value [ level-1 | level-2 ]
Optional
No cost is specified for
the interface by default.
Configuring a global IS-IS cost
Follow these steps to configure a global IS-IS cost:
To do… Use the command… Remarks
Enter system view system-view —
Enter IS-IS view
isis [ process-id ] [ vpn-instance
vpn-instance-name ]
—
Specify an IS-IS cost
style
cost-style { narrow | wide | wide-compatible
| { compatible | narrow-compatible }
[ relax-spf-limit ] }
Optional
narrow by default
Specify a global IS-IS
cost
circuit-cost value [ level-1 | level-2 ]
Required
No global cost is
specified by default.
Enable automatic IS-IS cost calculation
Follow these steps to enable automatic IS-IS cost calculation:
To do… Use the command… Remarks
Enter system view system-view —
Enter IS-IS view
isis [ process-id ] [ vpn-instance
vpn-instance-name ]
—
Specify an IS-IS cost style cost-style { wide | wide-compatible }
Required
narrow by default
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, refer to
Routing Policy Configuration in the IP Routing Volume .
Follow these steps to configure the priority of IS-IS.