Multilink Frame Relay Configuration; Overview - H3C SR6600 Configuration Manual

9

Multilink Frame Relay Configuration

This chapter includes these sections:

Overview

Configuring Multilink Frame Relay
Displaying and Maintaining Multilink Frame Relay
Multilink Frame Relay Configuration Examples
Overview
Multilink frame relay (MFR) is a cost effective bandwidth solution for frame relay users. Based on the
FRF.16 protocol of the frame relay forum, it implements the MFR function on DTE/DCE interfaces.
MFR function provides a kind of logical interface, namely MFR interface. The MFR interface is
composed of multiple frame relay physical links bound together, and you can configure subinterfaces
for the MFR interface. Therefore, the MFR interface provides high-speed and broadband links on frame
relay networks.
To maximize the bandwidth of bundled interface, it is recommended to bundle physical interfaces of the
same rate for the same MFR interface when configuring the MFR interface so as to reduce
management cost.
Bundle and bundle link
Bundle and bundle link are two basic concepts related to MFR.
One MFR interface corresponds to one bundle, which may contain multiple bundle links. One bundle
link corresponds to one physical interface. A bundle manages its bundle links. The interrelationship
between bundle and bundle link is as shown in
Figure 9-1 Illustration of bundle and bundle links
For the actual physical layer, a bundle link is visible; while for the actual data link layer, bundle is visible.
MFR interface and physical interface
An MFR interface is a kind of logic interface. Multiple physical interfaces can be bundled into one MFR
interface. One MFR interface corresponds to one bundle and one physical interface corresponds to one
bundle link. The configuration on a bundle and bundle links is actually configuration on an MFR
interface and physical interfaces.
The function and configuration of the MFR interface is the same with that on the FR interface in
common sense. Like the FR interface, the MFR interface supports DTE and DCE interface types as well
Figure 9-1:
9-125