3com 8807 Reference Guide

Use the undo isis authentication-mode command to cancel the authentication 
and delete the password at the same time.

By default, the password is not set and no authentication is executed.

If the password is set, but no parameter is specified, the default settings are 
Level-1, plaintext and osi.

Related command: area-authentication-mode, 
domain-authentication-mode.

# Set the authentication password "tangshi" in plain text for the Level-1 
neighboring relationship on Interface Vlan-interface 10.

[SW8800] interface Vlan-interface 10

 

[3Com-Vlan-interface10] isis authentication-mode simple tangshi level-1 

isis circuit-level [ level-1 | level-1-2 | level-2 ]

Interface view

level-1: Configures Level-1, instead of Level-2, adjacency on the current interface 
only.

level-1-2: Configures Level-1-2 adjacency on the current interface.

level-2: Configures Level-2 adjacency on the current interface only.

Use the isis circuit-level command to have the Level-1-2 router set up link 
adjacency with the peer router.

Use the undo isis circuit-level command to restore the default setting of the link 
adjacency on the Level-1-2 router.

By default, the value is level-1-2.

This command is only applicable to Level-1-2 routers. If the local router is a 
Level-1-2 router and it is required to establish a correlation with the peer router on 
a certain level (Level-1 or Level-2), this command can specify the interface to send 
and receive Hello packets of this level. Certainly, only one type of Hello packet is 
sent and received on the point-to-point link. In this way, excessive processing is 
avoided, and the bandwidth is saved.

Related command: is-level.