Configuration procedures, 3 checking the configuration, 6 checking the configuration -18 – Nortel Networks 8000 User Manual
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5 Logical interface configuration
Nortel Secure Router 8000 Series
Configuration -WAN Access
Configuration procedures
No.
Procedure
1
Creating a loopback interface and configuring its IP address
2
5.5.2 Creating a loopback interface and configuring its IP address
Do as follows on the routers:
Step 1 Run:
system-view
The system view appears.
Step 2 Run:
interface loopback loopback-number
The command creates a loopback interface.
Step 3 Run:
ip address ip-address { mask | mask-length }
The command configures the IP address of the loopback interface.
The number of loopback interface ranges from 0 to 1023. You can create up to 1024 loopback
interfaces.
You can create or delete loopback interface dynamically. Once you create a loopback interface,
it stays Up until you delete it.
—End
5.5.3 Checking the configuration
Run the following commands to check the previous configuration.
Action
Command
Check the status of a
loopback interface.
display interface loopback [
loopback-number
] [
| { begin |
exclude | include }
regular-expression
]
Run the
display interface loopback command to view that the link layer protocol status of
the interface is Up.
<Quidway> display interface loopback 1
LoopBackl current state : UP
Line protocol current state :UP (spoofing)
Description : Huawei, Quidway Series, LoopBackl Interface
The Maximum Transmit Unit is 1500 bytes
5-14
Nortel Networks Inc.
Issue 5.3 (30 March 2009)