Specifications

Terms and Definitions
December 02, 2010 Page 21 of 23
S3(rw)->set port lacp port ge.1.3 aadminkey 100 enable
S3(rw)->set port lacp port ge.1.4 aadminkey 100 enable
S3(rw)->set port lacp port ge.2.1 aadminkey 100 enable
S3(rw)->set port lacp port ge.2.2 aadminkey 100 enable
S3(rw)->set port lacp port ge.2.3 aadminkey 100 enable
S3(rw)->set port lacp port ge.2.4 aadminkey 100 enable
Systemprioritydetermineswhichdevicewillbeinchargeofportselection.Thisisanoptional
consideration.Forthisexamplewewillleavesystempriorityatthedefaultvalueandallowthe
devicewiththelowestMACaddresstodetermineportselection.
Portprioritydeterminestheorderinwhichaggregatableports
availableforaLAGaremovedto
theattachedstate.Forthisexamplewewanttoensurethatthetwo1Gbportsmovetotheattached
stateforLAG1 beforethe eight1GbportsmovetotheattachedstateforLAG2.Wewillsettheport
priorityto100for
thetwo1Gbactorportsshouldthisdevicebeinchargeofselectingportsto
movetotheattachedstate:
S3(rw)->set port lacp port ge.2.1 aportpri 100
S3(rw)->set port lacp port ge.3.1 aportpri 100
WenextenablesingleportLAGsonthisdevice:
S3(rw)->set lacp singleportlag enable
WenextenableflowregenerationontheS3:
S3(rw)->set lacp flowRegeneration enable
Thiscompletestheexample2configuration.
Terms and Definitions
Table 8liststermsanddefinitionsusedinthislinkaggregationconfigura tiondiscussion.
Table 8 Link Aggregation Configuration Terms and Definitions
Term Definition
Aggregator Virtual port that controls link aggregation for underlying physical ports. Each device
provides aggregator ports, which are designated in the CLI as lag.0.1 through
lag.0.x (depending upon the device, see Tabl e 3 on page 9 for LAG resources
available on your device).
LAG Link Aggregation Group. Once underlying physical ports (i.e.; fe.x.x, or ge.x.x) are
associated with an aggregator port, the resulting aggregation will be represented as
one LAG with a lag.x.x port designation.
LACPDU Link Aggregation Control Protocol Data Unit. The protocol exchanges aggregation
state/mode information by way of a port’s actor and partner operational states.
LACPDUs sent by the first party (the actor) convey to the second party (the actor’s
protocol partner) what the actor knows, both about its own state and that of its
partner.
Actor and Partner An actor is the local device sending LACPDUs. Its protocol partner is the device on
the other end of the link aggregation. Each maintains current status of the other via
LACPDUs containing information about their ports’ LACP status and operational
state.