H3C Technologies H3C S10500 Series Switches - Manual (Page 166)

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equals 40; if the interface bandwidth does not exceed 622 Mbps, the interface cost equals 30; if
the interface bandwidth does not exceed 2500 Mbps, the interface cost equals 20; if the interface
bandwidth exceeds 2500 Mbps, the interface cost equals 10.
If none of the above costs are used, a default cost of 10 applies.
Configuring an IS-IS cost for an interface
Follow these steps to configure a cost for an interface:
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
Return to system view quit —
Enter interface view interface interface-type interface-number —
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