802.1Ag Mep Support On Ethernet Spoke Sdps; Figure 15: Down Mep At Ethernet Sap - Alcatel-Lucent 7705 Service Manual

In the example shown in
nodes can be used to ensure Ethernet layer connectivity on a per-base-station basis. All the
traffic from these base stations is aggregated and switched to a single port on the 7705 SAR.
Each base station is recognized through a different VLAN, where the VLANs are bound to
different services. CFM with traffic in the Down MEP OAMPDU direction at the Ethernet
SAP offers the flexibility to run OAM tests on a per-base-station basis.
Eth.
9500 MPR
Eth.
9500 MPR
Eth.

802.1ag MEP Support on Ethernet Spoke SDPs

The 7705 SAR supports down maintenance association endpoints (MEPs) on Ethernet spoke
SDP endpoints.
CFM messages can be generated and switched across an Ethernet PW. CFM messages that
are received and have an MD that matches the value configured on the 7705 SAR are
extracted and processed. Any received CFM messages with an MD level that does not match
the configured value are not terminated and are switched transparently to the Ethernet SAP.
Down MEPs on Ethernet spoke SDPs on the 7705 SAR support the following:
7705 SAR OS Services Guide
Figure

Figure 15: Down MEP at Ethernet SAP

Ethernet MW Network
9500 MPR
9500 MPR
Eth.
Figure 16 illustrates a Down MEP on an Ethernet spoke SDP.
• termination of the CFM messages destined for the MEP-ID of the 7705 SAR
• termination of CFM messages at the user-configured domain only
• discarding of OAMPDUs at a lower MD level than the configured one (an alarm
message is raised)
15, separate dot1ag instances initiated on the 9500 MPR
T1, ATM, or
Eth.
Eth. over
Eth. MW
7705 SAR
9500 MPR
Services Overview
MPLS Network
BSC
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