Configuring Is-Is Routing Information Control; Configuration Prerequisites; Configuring Is-Is Link Cost - HPE FlexNetwork HSR6800 Configuration Manual

Configuring IS-IS routing information control

Perform the tasks in this section to affect IS-IS route selection.

Configuration prerequisites

Before the configuration, complete the following tasks:
•
Configure IP addresses for all interfaces, and make sure that all neighboring nodes are
reachable to each other at the network layer.
•
Enable IS-IS.

Configuring IS-IS link cost

The IS-IS cost of an interface is determined in the following order:
IS-IS cost specified in interface view.
1.
IS-IS cost specified in system view. The cost is applied to the interfaces associated with the
2.
IS-IS process.
Automatically calculated cost. If the cost style is wide or wide-compatible, IS-IS automatically
3.
calculates the cost using the formula: Interface cost = (Bandwidth reference value / Interface
bandwidth) ×10, which is in the range of 1 to 16777214. For other cost styles,
Table 6 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
If none of the above costs is used, a default cost of 10 applies.
Configuring an IS-IS cost for an interface
Step
Enter system view.
1.
Enter IS-IS view.
2.
Specify an IS-IS cost
3.
style.
Return to system view.
4.
Enter interface view.
5.
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
135
Table 6 applies.
Remarks
N/A
N/A
Optional.
The default is narrow.
N/A
N/A