Y.1731 Mep Support On Ethernet Saps; Figure 17: Y.1731 Mep Support On The 7705 Sar - Alcatel-Lucent 7705 Service Manual

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Y.1731 MEP Support on Ethernet SAPs

SAPs that are bound to an Ethernet PW service.

that when performing CFM tests on the 7705 SAR, a Y.1731 Up MEP on an Ethernet SAP

should be used instead of an 802.1ag Down MEP on an Ethernet spoke SDP. Using a Y.1731

SAP Up MEP means that CFM packets verify the switching fabric and SAP status before the

packet is processed, because the SAP is on the access side of the 7705 SAR whereas a spoke

SDP is on the network side. If a spoke SDP Down MEP is used, packets are terminated and

extracted on the network side without being switched through the switching fabric.

Ethernet (virtual) private line

Physical link

7705 SAR OS Services Guide

17, the 7705 SAR supports Y.1731 Up and Down MEPs on Ethernet

also shows an 802.1ag Down MEP on an Ethernet spoke SDP in order to illustrate

Metro Ethernet

Services Overview