Specifications

Link Aggregation Configuration Example
December 02, 2010 Page 20 of 23
Configuring the N3 Edge Switch
Forthisexample,wewantLAGstoformwherevertheycansowewillnotchangethedefault
adminkeysettingforallLAGsaswedidinthemultipledeviceexample.BecausewewantLAG1
andLAG2asdescribedforthisexampletoformforspecificports,wesetthe
adminkeyforthese
LAGsto100:
N3(rw)->set lacp aadminkey lag.0.1-2 100
LACPportstateisenabledbydefaultontheN3,sowedonothavetoenableLACPportstate
here.WenextwanttosettheadminkeysfortheN3edgephysicalportsassociatedwithLAG1and
LAG2:
N3(rw)->set port lacp port ge.2.1 aadminkey 100
N3(rw)->set port lacp port ge.3.1 aadminkey 100
N3(rw)->set port lacp port fe.1.1 aadminkey 100
N3(rw)->set port lacp port fe.1.2 aadminkey 100
N3(rw)->set port lacp port fe.1.3 aadminkey 100
N3(rw)->set port lacp port fe.1.4 aadminkey 100
N3(rw)->set port lacp port fe.1.5 aadminkey 100
N3(rw)->set port lacp port fe.1.6 aadminkey 100
N3(rw)->set port lacp port fe.1.7 aadminkey 100
N3(rw)->set port lacp port fe.1.8 aadminkey 100
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100Mbps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:
N3(rw)->set port lacp port ge.2.1 aportpri 100
N3(rw)->set port lacp port ge.3.1 aportpri 100
WenextenablesingleportLAGsonthisdevice:
System(rw)->set lacp singleportlag enable
WenextenableflowregenerationontheN3:
System(rw)->set lacp flowRegeneration enable
Configuring the S3 Upstream Switch
Forthisexample,wewantLAGstoformwherevertheycansowewillnotchangethedefault
adminkeysettingforallLAGsaswedidinthemultipledeviceexample.Autonegotiationwillset
portsge.1.1‐4andge.2.1‐4to100MbpstomatchtheremoteN3connectedports.Because
wewant
LAG1andLAG2,asdescribedfor thisexample,toformforspecificports,wesettheadminkeyfor
theseLAGsto100:
System(rw)->set lacp aadminkey lag.0.1-2 100
LACPportstateisdisabledbydefaultontheS3,sowewillenableLACPportstatehere.Wenext
wanttosettheadminkeysandportenableLACPfortheS3physicalportsassociatedwithLAG1:
S3(rw)->set port lacp port ge.2.1 aadminkey 100 enable
S3(rw)->set port lacp port ge.3.1 aadminkey 100 enable
S3(rw)->set port lacp port ge.1.1 aadminkey 100 enable
S3(rw)->set port lacp port ge.1.2 aadminkey 100 enable