Link Aggregation Commands; Introduction - Allied Telesis x310-26FT Command Reference Manual

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Introduction

Overview This chapter provides an alphabetical reference of commands used to configure a
static channel group (static aggregator) and dynamic channel group (LACP
channel group, etherchannel or LACP aggregator). Link aggregation is also
sometimes referred to as channeling.
NOTE
Aggregation Control Protocol (LACP). LACP does not interoperate with devices that use
Port Aggregation Protocol (PAgP).
Link aggregation does not necessarily achieve exact load balancing across the links.
The load sharing algorithm is designed to ensure that any given data flow always goes
down the same link. It also aims to spread data flows across the links as evenly as
possible.
Link aggregation hashes one or more of the source and destination MAC address, IP
address and UDP/TCP ports to select a link on which to send a packet. So packet flow
between a pair of hosts always takes the same link inside the Link Aggregation Group
(LAG). The net effect is that the bandwidth for a given packet stream is restricted to the
speed of one link in the LAG.
For example, for a 2 Gbps LAG that is a combination of two 1 Gbps ports, any one flow
of traffic can only ever reach a maximum throughput of 1 Gbps. However, the hashing
algorithm should spread the flows across the links so that when many flows are
operating, the full 2 Gbps can be utilized.
For a description of static and dynamic link aggregation (LACP), and configuration
examples, see the
Command List •
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C613-50103-01 REV A
Link Aggregation
: AlliedWare Plus™ supports IEEE 802.3ad link aggregation and uses the Link
Link Aggregation Feature Overview and Configuration
"channel-group" on page 607
"clear lacp counters" on page 609
"debug lacp" on page 610
"lacp global-passive-mode
"lacp port-priority" on page 612
Command Reference for x310 Series
AlliedWare Plus™ Operating System - Version 5.4.6-1.x
Commands
enable" on page 611
Guide.
605