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Raisecom
ISCOM2600G-HI (A) Series Configuration Guide
Success rate is 100 percent(5/5),
round-trip (ms) min/avg/max = 0/0/0.
5.2 Loopback interface
5.2.1 Introduction
The loopback interface is a virtual interface and can be classified into two types:
The loopback interface status is independent from the physical interface status (Up/Down). As
long as the ISCOM2600G-HI series switch is working normally, the loopback interface will
not become Down. Thus, it is used to identify the physical device as a management address.
5.2.2 Preparing for configurations
Scenario
Use the IP address of the loopback interface to log in through Telnet so that the Telnet
operation does not become Down due to change of physical status. To enable the PC to ping
through the IP address of the loopback interface, configure the corresponding static route
entry on the PC. The loopback interface ID is also used as the router ID of dynamic routing
protocols, such as OSPF, to uniquely identify a device.
Prerequisite
N/A
5.2.3 Default configurations of loopback interface
N/A
5.2.4 Configuring IP address of loopback interface
Configure the IP address of the loopback interface for the ISCOM2600G-HI series switch as
below.
1
2
Loopback interface automatically created by the system: the IP address is fixed to
127.0.0.1. This type of interfaces receives packets sent to the device. It does not
broadcast packets through routing protocols.
Loopback interface created by users: without affecting physical interface configurations,
configure a local interface with a specified IP address, and make the interface Up
permanently so that packets can be broadcasted through routing protocols.
Step
Raisecom#config
Raisecom(config)#interface
loopback
lb-number
Raisecom Proprietary and Confidential
Copyright © Raisecom Technology Co., Ltd.
Command
Description
Enter global configuration mode.
Enter loopback interface
configuration mode.
5 IP services
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