isis ppp-negotiation

Function

The isis ppp-negotiation command specifies the PPP negotiation mode for establishing neighbor relationships.

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

By default, the 3-way handshake mode is used.

Format

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

undo isis ppp-negotiation

Parameters

Parameter	Description	Value
2-way	Establishes the neighbor relationship using the 2-way handshake negotiation mode.	-
3-way	Establishes the neighbor relationship using the 3-way handshake negotiation mode.	-
only	Establishes the neighbor relationship using the 3-way handshake negotiation mode that is not backward compatible.	-

Views

Interface view

Default Level

2: Configuration level

Usage Guidelines

The 3-way handshake negotiation mode is backward compatible. If the neighbor only supports 2-way handshake, use the 2-way handshake negotiation mode to establish a neighbor relationship.

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

# Establish the neighbor relationship on VLANIF100 using the 2-way handshake negotiation mode.

<HUAWEI> system-view
[HUAWEI] isis
[HUAWEI-isis-1] network-entity 01.0000.0000.0001.00
[HUAWEI-isis-1] quit
[HUAWEI] interface vlanif 100
[HUAWEI-Vlanif100] isis enable 1
[HUAWEI-Vlanif100] isis circuit-type p2p
[HUAWEI-Vlanif100] isis ppp-negotiation 2-way

# Establish the neighbor relationship on GE0/0/1 using the 2-way handshake negotiation mode.

<HUAWEI> system-view
[HUAWEI] isis
[HUAWEI-isis-1] network-entity 01.0000.0000.0001.00
[HUAWEI-isis-1] quit
[HUAWEI] interface gigabitethernet 0/0/1
[HUAWEI-GigabitEthernet0/0/1] undo portswitch
[HUAWEI-GigabitEthernet0/0/1] isis enable 1
[HUAWEI-GigabitEthernet0/0/1] isis circuit-type p2p
[HUAWEI-GigabitEthernet0/0/1] isis ppp-negotiation 2-way