3com S7906E 安装指导

 

1-20 

Specify a cost for the 
interface 

isis cost value [ level-1 | level-2 ] 

Optional 

No cost is specified for 
the interface by default. 

 

Follow these steps to configure a global IS-IS cost:  

Enter 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.  

 

Follow these steps to enable automatic IS-IS cost calculation:  

Enter 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 

Required 

Disabled by default 

Configure a bandwidth 
reference value for 
automatic IS-IS cost 
calculation 

bandwidth-reference value 

Optional 

100 Mbps by default  

 

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.