nanog mailing list archives
Re: MCI WorldCom fiber cut in White Plains, NY
From: "Howard C. Berkowitz" <hcb () clark net>
Date: Sun, 10 Oct 1999 09:26:11 -0400
At 11:49 PM -0400 10/9/99, William Allen Simpson wrote: [snip]
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.
Quite right that grooming is a constant threat. Depending on the carrier, one safeguard: when you write a contract in which you pay for facility diversity, write in a provision that lets you audit the Data Circuit Layout Record (or whatever the specific carrier calls it) periodically -- perhaps every 30 to 60 days. While they may groom both paths into a single cable, they will document this. By Murphy's Law, of course, they will tend to groom just after you've audited the documentation, but it's some help. I'm trying to remember the details, but I believe it was MCI in the Chicago or Florida area (not to single them out, just an example) that was sued successfully for not diversifying media for which facility diversity was specified, even though there was no actual outage.
Paul A Vixie wrote:why pay the complexity and cost overhead of SONET if you're not building rings?
Current thread:
- MCI WorldCom fiber cut in White Plains, NY Scott Drassinower (Oct 09)
- Re: MCI WorldCom fiber cut in White Plains, NY Paul A Vixie (Oct 09)
- Re: MCI WorldCom fiber cut in White Plains, NY William Allen Simpson (Oct 09)
- Re: MCI WorldCom fiber cut in White Plains, NY Howard C. Berkowitz (Oct 10)
- Re: MCI WorldCom fiber cut in White Plains, NY Alex Bligh (Oct 10)
- Re: MCI WorldCom fiber cut in White Plains, NY Jesper Skriver (Oct 11)
- Re: MCI WorldCom fiber cut in White Plains, NY Paul A Vixie (Oct 11)
- Re: MCI WorldCom fiber cut in White Plains, NY Jesper Skriver (Oct 11)
- Re: MCI WorldCom fiber cut in White Plains, NY Paul A Vixie (Oct 11)
- Re: MCI WorldCom fiber cut in White Plains, NY William Allen Simpson (Oct 09)
- Re: MCI WorldCom fiber cut in White Plains, NY Paul A Vixie (Oct 09)
- <Possible follow-ups>
- Re: MCI WorldCom fiber cut in White Plains, NY Sean Donelan (Oct 10)
- Re: MCI WorldCom fiber cut in White Plains, NY Danny McPherson (Oct 11)
- Re: MCI WorldCom fiber cut in White Plains, NY Peter Galbavy (Oct 12)
- Re: MCI Worldcom fiber cut in White Plains, NY Sean Donelan (Oct 13)