Configuring Is-Is Link Cost - HP 6125XLG Layer 3 - Ip Routing Configuration Manual

Enable IS-IS.
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Configuring IS-IS link cost

The IS-IS cost of an interface is determined in the following order:
1. IS-IS cost specified in interface view.
2. IS-IS cost specified in system view.
The cost is applied to the interfaces associated with the IS-IS process.
3. Automatically calculated cost.
If the cost style is wide or wide-compatible, IS-IS automatically calculates the cost using the formula:
Interface cost = (Bandwidth reference value / Expected interface bandwidth) × 10, in the range of
1 to 16777214. For other cost styles,
Configure the expected bandwidth of an interface with the bandwidth command. For more
information, see Interface Command Reference.
Table 7 Automatic cost calculation scheme for cost styles other than wide and wide-compatible
Interface bandwidth
≤ 10 Mbps
≤ 100 Mbps
≤ 155 Mbps
≤ 622 Mbps
≤ 2500 Mbps
> 2500 Mbps
4. If none of the above costs is used, a default cost of 10 applies.
Configuring an IS-IS cost for an interface
Step
1. Enter system view.
2. Enter IS-IS view.
3. (Optional.) Specify an
IS-IS cost style.
4. Return to system view.
5. Enter interface view.
6. (Optional.) Specify a cost
for the IS-IS interface.
Configuring a global IS-IS cost
Step
Enter system view.
1.
Table 7
Interface cost
60
50
40
30
20
10
Command
system-view
isis [ process-id ] [ vpn-instance
vpn-instance-name ]
cost-style { narrow | wide | wide-compatible
| { compatible | narrow-compatible }
[ relax-spf-limit ] }
quit
interface interface-type interface-number
isis cost value [ level-1 | level-2 ]
Command
system-view
136
applies.
Remarks
N/A
N/A
By default, the IS-IS cost type
is narrow.
N/A
N/A
By default, no cost for the
interface is specified.
Remarks
N/A