Hdlc Link Bundling Configuration; Overview; Basic Concepts Of Hdlc Link Bundling - H3C SR6600 Configuration Manual

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HDLC Link Bundling Configuration

This chapter includes these sections:

Overview

Configuring an HDLC Link Bundle Interface
Assigning an Interface to an HDLC Link Bundle
Displaying and Maintaining HDLC Link Bundling
HDLC Link Bundling Configuration Example
Overview
HDLC link bundling allows you to bundle multiple interfaces that use HDLC as the link layer
protocol together to form one logical link.
HDLC link bundling delivers the following benefits:
Load balancing: Incoming/outgoing traffic is distributed across multiple member
interfaces of the HDLC link bundle.
Increased bandwidth: The bandwidth on the HDLC link bundle interface is the total
bandwidth of all available member interfaces.
Improved connection reliability: When a member interface goes down, the traffic on it
automatically switches over to other available member interfaces. This avoids service
interruption and improves the connection reliability of the whole HDLC link bundle.

Basic Concepts of HDLC Link Bundling

HDLC link bundle interface
An HDLC link bundle interface is a logical interface corresponding to a bundle of HDLC
links.
HDLC link bundle
An HDLC link bundle is a group of HDLC interfaces. When you create an HDLC link bundle
interface, an HDLC link bundle numbered the same is automatically generated.
To bring up an HDLC link bundle, it must meet the requirements for the minimum number of
selected links (if set) and minimum amount of bandwidth (if set).
Member interface
An interface assigned to an HDLC link bundle is called an HDLC link bundle member
interface.
Currently, only POS interfaces and serial interfaces using HDLC encapsulation can be
assigned to HDLC link bundles.
Bundling priority
When the number of active member interfaces in an HDLC link bundle is limited, only the
higher-priority links within the bundle are active. A lower bundling priority value is a higher
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