Alcatel AST570, User Manual

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ATM traffic handling
(W)LAN interfaces
13 Networking - ATM
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3EC 17766 AAAA TCZZA Ed. 04
13.1.3 ATM and Interfaces
Inside ATM VCs any protocol can be transported. However, at
both endpoints - that is where the ATM channels are terminated
- the same protocol must be supported. If not, there will be no
endtoend connectivity.
These interfaces terminate a number of ATM connections and
extract frames from arriving cells and encapsulates frames in
departing cells.
Only frames recognized/supported by the
AST570 on a particular
ATM connection are extracted, or encapsulated.
Currently the supported encapsulations are:
For Transparently Bridged connections:
RFC 1483, Ethernet V2.0/IEEE 802.3 bridged PDUs for both
the LLC/SNAP method and VCMUX method
For Routed Ethernet connections:
RFC 1483, Ethernet V2.0/IEEE 802.3 bridged PDUs for both
the LLC/SNAP method and VCMUX method
For Bridged PPPoE connections:
RFC 1483, Ethernet V2.0/IEEE 802.3 bridged PDUs for both
the LLC/SNAP method and VCMUX method
For Routed PPPoE connections:
RFC 1483, Ethernet V2.0/IEEE 802.3 bridged PDUs for both
the LLC/SNAP method and VCMUX method
For Relayed PPPoA connections:
RFC 2364, PPP PDUs for both the LLC/NLPID method and
VCMUX method
For Routed PPPoA connections:
RFC 2364, PPP PDUs for both the LLC/NLPID method and
VCMUX method
For CIP & IP Routing connections:
RFC 1483 LLC/SNAP method for Routed PDUs.