[25410] in North American Network Operators' Group

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Re: MCI WorldCom fiber cut in White Plains, NY

daemon@ATHENA.MIT.EDU (Danny McPherson)
Mon Oct 11 18:21:52 1999

Message-Id: <199910112220.QAA27037@ice.ip.qwest.net>
To: nanog@merit.edu
From: Danny McPherson <danny@qwest.net>
Reply-To: danny@ice.ip.qwest.net
Mime-Version: 1.0
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Date: Mon, 11 Oct 1999 16:20:59 -0600
Errors-To: owner-nanog-outgoing@merit.edu



> 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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