R21xx-HP FlexFabric 11900 Layer 2 LAN Switching Configuration Guide

• A port that joins a dynamic aggregation group after the Selected port limit has been reached is

placed in Selected state if it is more eligible to be selected than a current member port.

Load sharing criteria for link aggregation groups

In a link aggregation group, traffic may be load-shared across the selected member ports based on a set

of criteria, depending on your configuration.

You can choose one of the following criteria or any combination of the criteria for load sharing:

• Per-flow load sharing—Classifies traffic flows by source or destination MAC address,

source/destination port number, ingress port, source or destination IP address or MPLS label, or

any combination of them, and forwards packets of the same flow on the same link.

• Packet type-based load sharing—Automatically chooses link-aggregation load sharing criteria

based on packet types (Layer 2, IPv4, MPLS, or IPv6 for example).

Ethernet link aggregation configuration task list

Tasks at a

lance

(Required.) Configuring an aggregation group:

• Configuring a static aggregation group

• Configuring a dynamic aggregation group

(Optional.) Configuring an aggregate interface:

• Configuring the description of an aggregate interface

• Setting the minimum and maximum numbers of Selected ports for an aggregation group

• Shutting down an aggregate interface

• Restoring the default settings for an aggregate interface

(Optional.)Configuring load sharing for link aggregation groups

• Configuring load sharing criteria for link aggregation groups

• Enabling local-first load sharing for link aggregation

Enabling link-aggregation traffic redirection

Configuring an aggregation group

This section explains how to configure an aggregation group.

Configuration guidelines

• You cannot assign a port to a Layer 2 aggregation group if any of the following features is

configured on the port:

{ Association between AC and cross connection (see MPLS Configuration Guide)

{ AC-VSI association (see MPLS Configuration Guide)

• If a port is used as a reflector port for port mirroring, do not assign it to an aggregation group. For

more information about reflector ports, see Network Management and Monitoring Configuration

Guide.