Internet Enhanced Services
7750 SR OS Services Guide Page 863
SAPs
Encapsulations
The following SAP encapsulations are supported on IES servicse:
• Ethernet null
• Ethernet dot1q
• SONET/SDH IPCP
• SONET/SDH BCP-null
• SONET/SDH BCP-dot1q
• SONET/SDH ATM
• ATM - LLC SNAP or VC-MUX
ATM SAP Encapsulations for IES
The 7750 SR series supports ATM PVC service encapsulation for IES SAPs. Both UNI and NNI
cell formats are supported. The format is configurable on a SONET/SDH path basis. A path maps
to an ATM VC. All VCs on a path must use the same cell format.
The following ATM encapsulation and transport modes are supported:
• RFC 2684,
Multiprotocol Encapsulation over ATM Adaptation Layer 5:
→ AAL5 LLC/SNAP IPv4 routed
→ AAL5 VC mux IPv4 routed
→ AAL5 LLC/SNAP IPv4 bridged
→ AAL5 VC mux IPv4 bridged
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