Specifications

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Cisco IGX 8400 Series Provisioning Guide, Release 9.3.3 and Later Releases
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Chapter 8 Cisco IGX 8400 Series ATM Service
ATM Service—Functional Overview
ATM Connections Supported on the IGX
The ATM connections shown in Table 8-1 are supported on the IGX.
UXM-E Connections
The UXM-E supports up to 8000 virtual circuit (VC) or virtual path (VP) connections with interfaces
operating as either NNI or UNI. Connections can be ATM or gateway connections.
Note The UXM-E supports up to a maximum of 4000 gateway connections.
The UXM-E supports both standard ABR with or without virtual source/virtual destination (VS/VD),
and ABR with ForeSight (ABRFST).
Gateway connections require the UXM-E to translate between FastPackets and ATM cells and provide
ATM-to-Frame Relay service or network interworking (SIW or NIW).
For more information on Frame Relay service or service or network interworking, see Chapter 9,
“Cisco IGX 8400 Series Frame Relay Service.”
For more information on the connections supported on the UXM-E, see Table 8-2.
Table 8-1 ATM Connections Supported on the IGX
Chassis Connection Endpoint Chassis Connection Endpoint
IGX UXM, UXM-E IGX UXM
IGX UXM, UXM-E IGX UXM-E
IGX UXM, UXM-E BPX BXM
IGX UXM, UXM-E BPX ASI
IGX UXM, UXM-E MGX AUSM
IGX UXM, UXM-E IGX URM
Table 8-2 ATM Endpoints and Connection Types
Endpoints Supported Connection Types
UXM-E and UXM-E VP and VC connections: CBR.1, VBR.1-3, UBR.1-2,
ABRFST, ABR.1 (with VS/VD), ABR.1 (without VS/VD)
UXM-E and BXM VP and VC connections: CBR.1, VBR.1-3, UBR.1-2,
ABRFST, ABR.1 (with VS/VD), ABR.1 (without VS/VD)
UXM-E and ASI-T3 or ASI-E3 VP and VC connections: CBR.1, VBR.1-3, UBR.1-2,
ABRFST, ABR.1 (without VS/VD)
UXM-E and ASI-OC3 VP and VC connections: CBR.1, VBR.1-3, UBR.1-2,
ABRFST, ABR.1 (without VS/VD)
UXM-E and AUSM VP and VC connections: CBR.1, VBR.1-3, UBR.1-2,
ABRFST, ABR.1 (without VS/VD)