User manual

Table Of Contents
ZXR105900/5200SeriesUserManual(EthernetSwitchingVolume)
ThecongurationofMACaddresstableincludesthefollowingcon-
tents.
SettingMACAddressAgingTime
MACaddressagingtimeinuencestheswitch’sperformance.
AshorteragingtimemaymaketheswitchdeleteusefulMACad-
dresstableentries.Asaresult,itbroadcastsmanypacketsit
losestracktotheirdestinationMACaddresses,whichconsumes
thebandwidth.
Alongeragingtimemayleadtotoomanyuselessentriesinthe
MACaddresstable,whichuseuptheMACaddresstableresources.
NewMACaddressescannotbeaddedtotheMACaddresstable,
soforwardingperformancealsoreduces.
TosetMACAddressAgingTime,usethefollowingcommand.
CommandFunction
ZXR10(config)#macaging-time<time>ThissetsMACAddressAging
Time.
TheaddressagingtimeonZXR105900/5200bydefaultisupto
360s,congurablerangeisfrom60sto630s.
BurningMACAddresses
LearnedMACaddressescanbeburnintheswitchafteraperiodof
stablerunningifthereisnotanychangeintheconnectingports
betweenswitchanddevice(orinthemappingrelationshipbe-
tweendeviceMACaddressandportnumber .intheMACaddress
table).
MACaddressburningistoconvertalldynamicMACaddressesin
theMACaddresstabletostaticMACaddressesthatwillnotage.
Afteraddressburning,dataframesfromtheseMACaddressesare
notlearnedwhentheyarereceivedonotherports.
ToburnMACAddress,usethefollowingcommand.
CommandFunction
ZXR10(config)#macto-static{enable|disable|interface
<port-name>{enable|disable}}
BurntMACaddressesarenot
storedpermanentlybutarelost
afterpower-off.
ConfiguringMACAddressPermanent
ThisisasecuritypolicyforMACvirusood.Whennetworkrunsfor
awhile,ifitisstableuserandthelocationofdevicesthateachport
34CondentialandProprietaryInformationofZTECORPORATION