Radwin 5000 HPMP - Figure 18-2 Separating Client

RADWIN5000HPMPUserManual Release3.5.70 18‐3
VLANUntagging
Figure18‐2:Separatingclientdatastreamsusingdoubletagging
Theoutertag(representingtheProviderVLAN)comesfirst,followedbytheinnertag.InQinQ
theEtherType=0x9100.VLANtagsmaybestack edthreeormoredeep.
Whenusingthistypeof“Provider Tagging ”youshouldkeepthefollowinginmind:
• UnderProviderTagging,thesystemdouble‐tagsegressframestowardstheProvider’s
network.ThesystemaddsatagwithaVLANIDandEtherType=0x9100toallframes,as
configuredbytheserviceprovider(ProviderVLANID).
• Thesystemalwaysaddstoeachframe,tagswithVLANID
andEtherType=0x9100.
Therefore,
• Foraframewithoutatag–thesystemwilladdatagwithVLANIDandEtherT ype=
0x9100sotheframewillhaveonetag
• ForaframewithaVLANtag–thesystemwilladdatagwithVLANIDandEtherT ype

=0x9100sotheframewillbedouble‐tagged
ForaframewithaVLANtagandaprovidertag–thesystemwilladdatagwithVLANIDand
EtherType=0x9100sotheframewillbetriple‐taggedandsoon.
Attheegressside,theHSUremovestheQinQtagwithEtherType=0x9100nomatterwhat
thevalueofitsVLANID.
VLANUntagging
VLANUntaggingmeanstheremovalofaVLANoraProvidertag.
PortFunctionality
InaRADWIN5000sector,allVLANactivityisconfiguredandsupportedfromthe HSUs.