Chapter 17: Ethernet Services and Interfaces (CLI)
Configuring Ethernet Services (CLI)
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Page 17-282
Table 110 Service Point Types per Interface
MNG
SAP
SNP
Pipe
MNG
Only one MNG SP is
allowed per interface.
Yes
Yes
Yes
SAP
Yes
Yes
No
No
SNP
Yes
No
Yes
No
PIPE
Yes
No
No
Only one Pipe SP is allowed
per interface.
Service Point Classification (CLI)
This section includes:
Overview of Service Point Classification (CLI)
Pipe Service Point Classification (CLI)
MNG Service Point Classification (CLI)
Overview of Service Point Classification (CLI)
Service points connect the service to the network element interfaces. It is crucial that the network
element have a means to classify incoming frames to the proper service point. This classification
process is implemented by means of a parsing encapsulation rule for the interface associated with
the service point. This rule is called the Interface Type, and is based on a key consisting of:
The Interface ID of the interface through which the frame entered.
The frame’s C-VLAN and/or S-VLAN tags.
The Interface Type provides a definitive mapping of each arriving frame to a specific service point
in a specific service. Since more than one service point may be associated with a single interface,
frames are assigned to the earliest defined service point in case of conflict.
SAP Classification (CLI)
SAPs can be used with the following Interface Types:
All to one – All C-VLANs and untagged frames that enter the interface are classified to the
same service point.
Dot1q – A single C-VLAN is classified to the service point.
QinQ – A single S-VLAN and C-VLAN combination is classified to the service point.
Bundle C-Tag – A set of multiple C-VLANs is classified to the service point.
Bundle S-Tag – A single S-VLAN and a set of multiple C-VLANs are classified to the service
point.