Specifications

Link Aggregation Configuration Example
December 02, 2010 Page 13 of 23
•LAG3providesanaggregateoffour1GbportsbetweentheC3stackableswitchesandthe
server.
EachLAGconsistsoffourports.Theprimarygoaloftheaggregatesinthi sexampleistoprovide
linkandslotredundancyfortheaffecteddatastreams.Withthatinmind,LAGmembersare
spread
betweenavailablesystemslots.FouroutofthefiveS8availableslotsareusedproviding
completeredundancyattheS8.AllthreeslotsareusedintheS3.Thefourportsfromtheserverto
theC3stackableswitchesandtheC3stackableswitchestotheS8areevenlysplitbetween
thetwo
stackableswitches.
ForthisexamplewewillmanuallyconfiguretheLAGsthatwillformandpreventanyotherLAGs
fromforming.BecausewehavespecificporttoLAGgoalsinmind,thefirstthingwewanttodo
oneachdeviceistoensurethatLAGsformonlywhere
weconfigurethem.Sincetheadminkey
fortheLAGanditsassociatedportsmustagreefortheLAGtoform,aneasywaytoensurethat
LAGsdonotautomaticallyformistosettheadminkeyforallLAGSonalldevicestoa
non‐defaultvalue.The
physicalportswillinitiallyretainadminkeydefaults.Inourexample,the
adminkeysforallLAGsaresettothehighestconfigurablevalueof65535.