Huawei Quidway NetEngine80E Configuration Manual page 536

HUAWEI NetEngine80E/40E Router
Configuration Guide - IP Routing
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Issue 02 (2014-09-30)
The global IS-IS cost is configured.
You can use the circuit-cost command to configure the costs of all interfaces at a time.
Enable IS-IS to automatically calculate interface costs.
1. Run:
system-view
The system view is displayed.
2. Run:
isis [ process-id ]
The IS-IS view is displayed.
3. Run:
bandwidth-reference value
The reference value of the bandwidth is configured. By default, the bandwidth
reference value is 100 Mbit/s.
4. Run:
auto-cost enable
The interface is configured to automatically calculate its cost.
The configuration of the bandwidth reference value takes effect only when the cost type is
wide or wide-compatible. In this case, Cost of each interface = (Value of bandwidth-
reference/Interface bandwidth) x 10.
NOTE
The auto-cost enable command can be run on Eth-Trunk interfaces as same with on physical
interfaces. If the command is run on an Eth-Trunk interface, the bandwidth of the Eth-Trunk interface
is equal to the total bandwidth of all its member interfaces.
If the cost-style is narrow, narrow-compatible, or compatible, the cost of each interface is
based on costs listed in
Table 7-1 Mapping between IS-IS interface costs and interface bandwidth
Cost
60
50
40
30
20
10
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Table 7-1.
Bandwidth Range
Interface bandwidth ≤ 10 Mbit/s
10 Mbit/s < interface bandwidth ≤ 100 Mbit/
s
100 Mbit/s < interface bandwidth ≤ 155 Mbit/
s
155 Mbit/s < interface bandwidth ≤ 622 Mbit/
s
622 Mbit/s < Interface bandwidth ≤ 2.5 Gbit/
s
Interface bandwidth > 2.5 Gbit/s
7 IS-IS Configuration
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