[EFM] Service provider OAM for Leased Line services
Ben,
In a previous message I made the statement that with the exception of the
10GbE WAN PHY, little has changed since I made the presentation 1999
stating the need for service provider OAM support for "dark fiber" and
other leased line services. In one respect, that statement is incorrect,
but not directly because of the 802.3ah TF. The copper sub task force, in
adopting the ITU defined mapping for xDSL, have made available an embedded
overhead channel (EOC) that can be used by service providers for leased
line and other "private" facility services. The EOC is similar in usable
functionality to other "out-of-band" OAM in the data transmission services
industry. So within that context, 802.3ah has provided an OAM
functionality that is useable by service providers for services other than
"packet", "Frame Relay", or so-called "broadband" services, but only on the
copper PHY.
Thank you,
Roy Bynum