nanog mailing list archives

Re: MCI WorldCom fiber cut in White Plains, NY


From: Danny McPherson <danny () qwest net>
Date: Mon, 11 Oct 1999 16:20:59 -0600



APS is really a useless feature.  Even when you get the contract to say there 
are diverse paths, they will later groom the circuits to put them in the 
same bundle.  

APS, just like other things, can be employed less-than-intelligently.  That 
doesn't make it broke.

Believe it or not, more than a few times I've actually seen circuits switch to 
protect work when a fiber cut occurs on the primary path .. and, of course, we 
didn't read about those on NANOG :-)

Given, had the protect path been on the same fiber that extra nanosecond 
likely wouldn't of provided much protection.  Obviously, they need to be 
engineered and provisioned correctly.

I do agree that grooming or lack of correct provisioning needs to be 
addressed, contractually, with clearly defined significant penalties 
associated with failure to meet the obligation.  Once this occurs, I believe 
folks will begin to give more attention to such things that seem negligible in 
comparison to the commission they're about to receive.

-danny





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