Juniper Networks EX2500 - Manual (Page 63)

Link Aggregation Control Protocol „ 49
Chapter 4: Ports and Trunking
You can select a minimum of one or a maximum of two parameters to create one
of the following configurations:
„ Source MAC (SMAC):
ex2500(config)# portchannel hash source-mac-address
„ Destination MAC (DMAC):
ex2500(config)# portchannel hash destination-mac-address
„ Source MAC (SMAC) + Destination MAC (DMAC):
ex2500(config)# portchannel hash source-destination-mac
„ Source IP (SIP):
ex2500(config)# portchannel hash source-ip-address
„ Destination IP (DIP):
ex2500(config)# portchannel hash destination-ip-address
„ Source IP (SIP) + Destination IP (DIP):
ex2500(config)# portchannel hash source-destination-ip
Link Aggregation Control Protocol
Link Aggregation Control Protocol (LACP) is an IEEE 802.3ad standard for grouping
several physical ports into one logical port—known as a dynamic trunk group or
Link Aggregation group (LAG)—with any device that supports the standard. Please
see IEEE 802.3ad-2002 for a full description of the standard.
LACP Overview
The 802.3ad standard allows standard Ethernet links to form a single Layer 2 link
using the Link Aggregation Control Protocol (LACP). Link aggregation is a method of
grouping physical link segments of the same media type and speed in full duplex,
and treating them as if they were part of a single logical link segment. If a link in an
LACP trunk group fails, traffic is reassigned dynamically to the remaining link(s) of
the dynamic trunk group.
NOTE: LACP implementation in the EX2500 switch does not support the Churn
machine, an option used to detect if the port is operable within a bounded time
period between the actor and the partner. Only the Marker Responder is
implemented, and there is no marker protocol generator.