isis ppp-negotiation

Function

The isis ppp-negotiation command specifies the type of negotiation mode that should be used during the adjacency formation.

The undo isis ppp-negotiation command restores the negotiation mode to the default one.

By default, the 3-way handshake model is used to establish adjacencies. The mode of the 3-way handshake is backward compatibility. If the peer only supports the 2-way handshake mode, establish the adjacency relationship by using the 2-Way Handshake negotiation mode.

Format

isis ppp-negotiation { 2-way | 3-way [ only ] }

undo isis ppp-negotiation

Parameters

Parameter	Description	Value
2-way	Establish the adjacency relationship by using the 2-Way Handshake negotiation mode.	-
3-way	Establish the adjacency relationship by using the 3-Way Handshake negotiation mode.	-
only	Establish the adjacency relationship by using the 3-Way Handshake negotiation mode and do not support the backward compatibility.	-

Views

Ethernet interface view, Ethernet sub-interface view, Eth-Trunk interface view, Eth-Trunk sub-interface view, Tunnel interface view, Loopback interface view, Dialer interface view, VLANIF interface view, Virtual-Template interface view

Default Level

2: Configuration level

Usage Guidelines

The command is applicable only for P2P interfaces. It can be used on the broadcast interfaces only after the circuit type is set to P2P.

Example

# Configure the adjacency relationship on the GigabitEthernet0/0/0 by using the 2-Way Handshake negotiation mode.

<sysname> system-view

[sysname] interface GigabitEthernet 0/0/0
[sysname-GigabitEthernet0/0/0] isis enable
[sysname-GigabitEthernet0/0/0] isis ppp-negotiation 2-way