From: Jim Devane (jim@powerpulse.cc)
Date: Fri Jan 16 2004 - 14:00:52 GMT-3
I am having a tough time finding a definite answer.
If I have an STS-1 mapped to an FastEthernet port and the OC-X goes down,
will the ONS take the line protocol for the FE port down as well?
Basically, for last mile Ethernet applications I want to make sure that I do
not have to rely on a L3 routing protocol timeout to recognize a far-end
failure. I want the device plugged into the ONS to realize immediately that
the SONET connection is down.
I have heard arguments for both sides.. meaning. that the XC in the ONS will
get the AIS and tear down the cross connect. I have also heard that Ethernet
as long as the line protocol is up on the Ethernet side there is no reason
to tear it down.
I have also not been able to find any reference to an HSRP "track" sort of
command to simulate what I want. ( of course the ONS being of limited L3
awareness may not exactly have an HSRP track function)
Any input welcome
I
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