802.3ah is a link level Metro Ethernet OAM which is used for the last mile monitoring purpose. It cannot scale more than a single hop. It can transmit at max rate of 10 frames per second which is equivalent to 100ms transmission time for single frame. At least we need 3 frames to detect the link loss with high cpu usage which will contribute almost 300ms to acheive only link level convergence time.
Functions:-
OAM discovery
Remote Failure Indication remote loopback
Port Level Loopback
Fault Isolation
Perfomrance and Status Monitoring
SDN and NFV is the next phase of technology change which will help service provider to launch the services in single click. This is all about the programmability of the networks by using open source software defined network controller.
Sunday, February 5, 2012
802.3ah - Ethernet OAM - Part 1
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1 comment:
thank you for information
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