Specifications

Configuring and Managing Ports
4-12 Configuring and Managing Ports and VLANs
Link Redundancy
Aportgroupensureslinkstabilitybyprovidingredundantconnectionsforthesamelink.Ifan
individualportinagroupfails,theRoamAboutSwitchreassignstraffictotheremainingports.
Whenthefailedportstartsoperatingagain,theRoamAboutSwitchbeginsusingitfornewtraffic
flows.Trafficthatbelonged
totheportbeforeitfailedcontinuestobeassignedtootherports.
Configuring a Port Group
Toconfigureaportgroup,usethefollowingcommand:
set port-group name group-name port-list mode {on | off}
Enteranameforthegroupandtheportscontainedinthegroup.
Themodeparameteraddsorremovesportsforagroupthatisalreadyconfigured.Tomodifya
group:
• Addingports—Entertheportsyouwanttoadd,thenentermodeon.
•Removingports—Entertheportsyouwanttoremove,
thenentermodeoff.
Examples
Toconfigureaportgroupnamedserver1containingports1through4andenablethelink,typethe
followingcommand:
RBT-8100# set port-group name server1 1-4 mode on
success: change accepted.
Afteryouconfigureaportgroup,youcanusetheportgroupnamewithcommandsthatchange
Layer2configurationparameterstoapplyconfigurationchanges toallportsintheportgroup.For
example,SpanningTreeProtocol(STP)andVLANmembershipchangesaffecttheentireport
groupinsteadofindividualports.
WhenyoumakeLayer2configurationchanges,youcanusea
portgroupnameinplaceoftheportlist.Ethernetportstatisticscontinuetoapplytoindividual
ports,nottoportgroups.
Toconfigureaportgroupnamedserver2containingports3and4andaddtheportstothe
default
VLAN,typethefollowingcommands:
RBT-8100# set port-group name server2 3,4 mode on
success: change accepted.
RBT-8100# set vlan default port server2
success: change accepted.
Toverifytheconfigurationchange,typethefollowingcommand:
RBT-8100# show vlan config
Admin VLAN Tunl Port
VLAN Name Status State Affin Port Tag State
---- ---------------- ------ ----- ----- ---------------- ----- -----
1 default Up Up 5
server2 none Up
Toindicatethattheportsareconfiguredasaportgroup,theshowvlanconfigoutputliststhe
portgroupnameinsteadoftheindividualportnumbers.
Note: Do not use dashes or hyphens in a port group name. MSS will not display, or save, the port
group.