ADTRAN Total Access 5000 - Create an EVC Cross Connect; EVC Definition; EVC Cross Connect Guidelines; Table 4-6. Available S-Tag Range

Total Access 5000 Business Services Deployment Guide
4-14 65K510DEP08-1A
Create an EVC Cross Connect
Thissubsectiondetailsthefollowing information:
• DefinitionofanEVC
•GuidelinesforcreatinganEVC
•StepsforcreatinganEVC
EVC Definition
AnEVCisalogicalenti tythatprovidesameansforconnectingtwoendpointsintheTotal
Access5000andprovidesapathforEthernetframeswithaparticularVLANIDwithinthe
TotalAccess5000. TheEVCcross‐connectstwoendpointsandprovidesthemechanismby
whichanS‐tag
pathiscreatedinthesystem.TheS‐tagcorrespondstotheVLANID.For
example,intheEoCuapplicationanEVCcross‐connectiscreatedbetweenaphysicalnetwork
portandalogicalEFMbondinggroup.TrafficenteringthenetworkportontheselectedS‐tag
issentby
theGigESMtothe32‐PortSHDSLEFMcontainingthebondinggroupandthen
forwardedtothebondinggroupbythemodule.
IntheTotalAccess5000,customertrafficswitchesthroughoutthesystemviaS‐tags
(outermostVLANtagonanEthernetpacket).Downstreamtrafficentersthesystemthrough
the
networkportsonthe GigESMandisS‐tagswitchedtotheappropriateslot.The32‐Port
SHDSLEFMthendecideshowtosendthattraffictothecustomer.Upstreamtrafficis
switchedtothenetworkinasimilarmanner.
NOTE
If the NetVanta 838 management VLAN differs from the GigE SM
managementVLAN,create acrossconnectfortheGigESMtopassthe
NetVanta838managementtraffic.Whencreating acrossconnect,setupthe
crossconnectwith anS‐tagequaltotheNetVanta83 8managementVLAN,
pointingtotheappropriateEFMGroup.
EVC Cross Connect Guidelines
Whencreatingacross‐connect,enforcethefollowingguidelines:
•AnEVCcannotbepartofanothercross‐connect
• EachEVCmusthaveauniqueS‐tag
Table4‐6displaystheavailableS‐tagsintheTotalAccess5000.
Table 4-6. Available S-tag Range
S-tag Function
0,1,4095 Reserved
2–4094 EVPLsandInbandManagementVLAN
3072 InternalManagementVLAN(Default)