auto-cost enable

Use auto-cost enable to enable automatic link cost calculation.

Use undo auto-cost enable to disable automatic link cost calculation.

Syntax

auto-cost enable

undo auto-cost enable

Default

Automatic link cost calculation is disabled.

Views

IS-IS view

Predefined user roles

network-admin

Usage guidelines

After automatic link cost calculation is enabled, the link cost is automatically calculated based on the bandwidth reference value of an interface. When the cost-style is wide or wide-compatible, the cost value of an interface is calculated by using the following formula: Cost = (Reference bandwidth value / Link bandwidth) × 10. For other cost styles, Table 56 applies.

Table 56: Automatic cost calculation scheme for cost styles other than wide and wide-compatible

Interface bandwidth

Cost

≤10 Mbps

60

≤100 Mbps

50

≤155 Mbps

40

≤622 Mbps

30

≤2500 Mbps

20

>2500 Mbps

10

Examples

# Enable automatic link cost calculation for IS-IS process 1.

<Sysname> system-view
[Sysname] isis 1
[Sysname-isis-1] auto-cost enable

Related commands

bandwidth-reference

cost-style

isis cost