Cisco Cisco Prime Optical 9.8 开发者指南
Cisco Prime Optical 9.8 GateWay/CORBA Programmer Reference Guide
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• Forwarding operation—Defines the operation to be applied on frames that belong to the
EFP.
• Ingress rewrite operation—Defines the rewrites to be performed on the frames that belong
to the EFP before proceeding with the forwarding operation.
• Egress rewrite operation—Defines the rewrites to be performed on the frames being
transmitted out of the EFP. For multipoint services, only symmetrical egress operations are
supported on the PTF_10GE_4, PT_10GE_4, and PTSA_GE cards. For point-to-point services,
the same result is achieved using various combinations of ingress rewrite operations on
User Network Interface (UNI) and Network Node Interface (NNI) ports.
supported on the PTF_10GE_4, PT_10GE_4, and PTSA_GE cards. For point-to-point services,
the same result is achieved using various combinations of ingress rewrite operations on
User Network Interface (UNI) and Network Node Interface (NNI) ports.
When a packet arrives on an FP, it is processed only if the packet’s VLAN tag matches the VLAN
tag mentioned in the encapsulation string of this FP. The ingress rewrite operation is applied on
the matching Ethernet frames and is forwarded to other FPs participating in this EVC based on
forwarding operations.
tag mentioned in the encapsulation string of this FP. The ingress rewrite operation is applied on
the matching Ethernet frames and is forwarded to other FPs participating in this EVC based on
forwarding operations.
All the FPs within a node, for a particular EVC, are tied together using a bridge domain
construct. A bridge domain is an Ethernet broadcast domain internal to a device. The bridge
domain enables you to decouple a VLAN from a broadcast domain. The bridge domain number
is local to the node and need not be unique across the network for the entire EVC. Different
EVC nodes can have the same or a different bridge domain number. However, the bridge
domain number is unique for an EVC within a node.
construct. A bridge domain is an Ethernet broadcast domain internal to a device. The bridge
domain enables you to decouple a VLAN from a broadcast domain. The bridge domain number
is local to the node and need not be unique across the network for the entire EVC. Different
EVC nodes can have the same or a different bridge domain number. However, the bridge
domain number is unique for an EVC within a node.
The APIs related to the following entities are described in this chapter:
• Connectionless PTPs (CPTPs)
• Matrix Flow Domains (MFDs)
• Flow Domains (FDs)
• Flow Domain Fragments (FDFrs)
• Matrix Flow Domains (MFDs)
• Flow Domains (FDs)
• Flow Domain Fragments (FDFrs)