Subject: Questions about the L2VPN OAM

From: "Zhong Qiwen" <[email-masked]>
Date: Tue, 20 Jun 2006 23:52:38 +0800

Hi, All:
	
	I'am puzzled about the topic of OAM in L2VPN !  would somebody help me ?

	My questions are:

	1---What exactly the L2VPN OAM is ? What is the point of view to study the L2VPN OAM ? 
		For homogeneous Ethernet VPWS, 
			Would it be "Ethernet OAM based on Y.1731 or 802.1ag + PW OAM " ?
		For homogeneous ATM VPWS,
			Would it be "ATM OAM + PW OAM"?
		( Heterogeneous VPWS, left for further discuss ! )
			
		For VPLS OAM , should we focus on the "Full Mesh VPLS Core" ? it's faults, defects and performance ? 

	2---Or, is the L2VPN OAM another concept besides customer network OAM and provider network OAM ?

																			best regards !