HPE FlexNetwork MSR Series Comware 5 Layer 2 - Wan Access Configuration Guide

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Configuring MP
Configuration task list
You can configure MP by using VT or MP-group interfaces.
• VT interface
VT interfaces are used to configure VA interfaces. After bundling multiple PPP links into an MP
link, create a VA interface for the MP link to exchange data with the peers.
Configuring MP by using VT interfaces can involve an authentication process. The device
locates the specified VT interface according to the username provided by the peer, and creates
a bundle (called VT channel in the system) corresponding to an MP link based on the
configuration of the template.
Multiple bundles can be created on the same VT interface, each of which is an MP link. From
the perspective of the network layer, these links form a point-to-multipoint topology.
The system uses authentication usernames or terminal descriptors for MP bundling to
distinguish multiple MP links under one VT interface. The following binding modes are
available:
{ authentication—Bundles links by using authentication usernames. Each authentication
username corresponds to one bundle. An authentication username refers to the username
sent by the supplicant to the authenticator for PAP, CHAP, MS-CHAP, or MS-CHAP-V2
authentication.
{ descriptor—Bundles links by using peer descriptors. Each peer descriptor corresponds to
one bundle. A peer descriptor is received from the peer during LCP negotiation and uniquely
identifies a device.
{ both—Bundles links by using both the authentication username and peer descriptor.
• MP-group interface
MP-group interfaces are intended only for MP. On an MP-group interface, only one bundle is
allowed, and links cannot be bundled according to the peer descriptor. Compared with VT
interfaces, the configuration of MP-group interfaces is more efficient and easy to configure and
understand.
To configure MP, complete the following tasks:
Task Remarks
Configuring MP by using a VT interface
Perform either task.
Configuring MP through an MP-group interface
Configuring short sequence number header format negotiation
Optional.
Configuring the MP endpoint descriptor
Optional.
Configuring MP by using a VT interface
When you configure MP by using a VT interface, you can do one of the following:
• Binding physical interfaces to the VT interface by using the ppp mp virtual-template command.
In this case, the configuration of authentication is optional. If the authentication is not configured,
the system binds links according to the descriptor of the peer end. If the authentication is
configured, the system binds links according to the username, the descriptor of the peer, or
both.

HPE FlexNetwork MSR Series Specifications

General

Brand	HPE
Model	FlexNetwork MSR Series
Category	Network Router
Language	English