3Com MSR 50, MSR 30 manual Circuit-cost, Related commands auto cost enable, 1039

1039

Parameters value: Bandwidth reference value in Mbps, ranging from 1 to 2147483648.

Description Use the bandwidth-referencecommand to set the bandwidth reference value for calculating link cost.

Use the undo bandwidth-referencecommand to restore the default.

By default, the reference value is 100 Mbps.

In the case no interface cost is specified in interface view or system view and automatic cost calculation is enabled:

■When the cost style is wide or wide-compatible, IS-IS automatically calculates the interface cost based on the interface bandwidth, using the formula: interface cost = bandwidth reference value/interface bandwidth, and the maximum calculated cost is 16777214.

■When the cost style is narrow, narrow-compatible, or compatible, if the interface is a loopback interface, the cost value is 0; otherwise, the cost value is automatically calculated as follows: if the interface bandwidth is in the range of 1 M to 10 M, the interface cost is 60; if the interface bandwidth is in the range of 11 M to 100 M, the interface cost is 50; if the interface bandwidth is in the range of 101 M to 155 M, the interface cost is 40; if the interface bandwidth is in the range of 156 M to 622 M, the interface cost is 30; if the interface bandwidth is in the range of 623 M to 2500 M, the interface cost is 20, and the default interface cost of 10 is used for any other bandwidths.

Related commands: auto cost enable.

Examples # Configure the bandwidth reference of IS-IS process 1 as 200 Mbps.

<Sysname> system-view

[Sysname] isis

[Sysname-isis-1] bandwidth-reference 200

circuit-cost

Syntax circuit-cost value [ level-1 level-2 ] undo circuit-cost [ level-1 level-2 ]

View IS-IS view

Parameters value: Specifies the global link cost value. The value range varies with cost types.

■For types narrow, narrow-compatible and compatible: The cost value ranges from 0 to 63.

■For types wide and wide-compatible: The cost value ranges from 0 to 16777215.

level-1: Applies the link cost to Level-1.