Hi,
I have a problem in that we have management on a network who's interfaces used to drop when the WAN link failed. We now have progressed onto Ethernet carrier links and we do not have the capability to monitor the link for any failures from end to end. I have heard talk about BFD, UDLD and OAM CC but none of these seem to fit our particular need.
I would like to know if either end of the link fails from router/interface failure through the Ethernet medium NTE physical link, core switching network and obviously back to the local end physical up to and including the router inetrface again.
I'm sure there are lots of methods to acheive this, but I'm looking for a relatively low overhead that will cause the local and remote interface/sub interfaces to drop should there be any issues.
We had ATM links which used oam within the platform which brought the interfaces down for line protocol hence causing an SNMP alert which the alarm monitoring system works on. However the Ethernet carrier does not use this, and I'm led to beleive tat we have many different suppliers so would probably need to be standards based.
If more information is required please do let me know.
Any ideas would be most welcome.
Thanks,
DH
