Specifying A Priority For Is-Is - 3Com S7906E Configuration Manual

To do...
Specify a cost for the
interface
Configuring a global IS-IS cost
Follow these steps to configure a global IS-IS cost:
To do...
Enter system view
Enter IS-IS view
Specify an IS-IS cost
style
Specify a global IS-IS
cost
Enable automatic IS-IS cost calculation
Follow these steps to enable automatic IS-IS cost calculation:
To do...
Enter system view
Enter IS-IS view
Specify an IS-IS cost style
Enable automatic IS-IS cost
calculation
Configure a bandwidth
reference value for
automatic IS-IS cost
calculation

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.
Use the command...
isis cost value [ level-1 | level-2 ]
Use the command...
system-view
isis [ process-id ] [ vpn-instance
vpn-instance-name ]
cost-style { narrow | wide | wide-compatible
| { compatible | narrow-compatible }
[ relax-spf-limit ] }
circuit-cost value [ level-1 | level-2 ]
Use the command...
system-view
isis [ process-id ] [ vpn-instance
vpn-instance-name ]
cost-style { wide | wide-compatible }
auto-cost enable
bandwidth-reference value
1-20
Remarks
Optional
No cost is specified for
the interface by default.
Remarks
—
—
Optional
narrow by default
Required
No global cost is
specified by default.
Remarks
—
—
Required
narrow by default
Required
Disabled by default
Optional
100 Mbps by default