Zte ZXR10 5900E Series - MAC Address Classification; MAC Address Table Establishment and Deletion

ZXR105900ESeriesUserManual(EthernetSwitchingVolume)
�srF:WhethertodropframesfromthesourceMACaddress.
�dsF:WhethertodropframesfromthedestinationMACad-
dress.
�Time:thetimeofMACaddressontheswitch.Desiganatedby
day:hour:minute:second.
DuringL2forwarding,theswitchchecksitsMACaddresstablefor
thedestinationMACaddressofthereceivedframe,andthenfor-
warddatatothecorrespondingport.
MACAddressClassification
ZXR105900EMACaddressisdividedintothefollowingtypes:
1.DynamicMACaddress
DynamicMACaddressesarelearnedbytheswitchfromdata
framesitreceives,andaredeletedwhentheagingtimeisdue.
Whenthedeviceconnectstoanotherportontheswitch,the
correspondingmappingrelationshipbetweentheMACaddtess
andportnumberalsochangesintheMACaddresstable.Dy-
namicMACaddressesarelostwhentheswitchispoweredoff
andmustbelearnedagainwhentheswitchisrebooted.
2.StaticMACaddress
StaticMACaddressesareconguredmanuallyandwillnever
age.ThemappingrelationshipbetweenMACaddressandport
numberintheMACaddresstableremainsunchangeddespite
ofchangesoftheconnectingportbetweenswitchanddevice.
StaticMACaddressesarealsolostwhentheswitchispowered
offandmustbeconguredagainwhentheswitchisrebooted.
3.PermanentMACaddress
PermanentMACaddressesarealsoconguredmanually.The
mappingrelationshipbetweenMACaddressandportnumberin
theMACaddresstableremainsunchangeddespiteofchanges
oftheconnectingportbetweenswitchanddevice.Permanent
MACaddresseswillnotdisappearwhentheswitchispowered
off.
MACAddressTableEstablishment
andDeletion
TheMACaddresstableofaswitchisnullinitially.Itiscreatedfor
fastforwarding.AsthesizeoftheMACaddresstableislimitedand
networkdevicechangesarefrequent,invalidMACaddresstable
entriesshouldbedeletedfromtheswitchintime.
1.DynamicLearning
DynamicMACaddressesintheMACaddresstablearelearned
bytheswitch.TheprocedureofswitchlearningMACaddress
isasfollows:
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