[outages] Major Fiber Cut in Miami

[Josh Luthman]

Thanks Jay.
On Mar 5, 2011 9:43 PM, "Jay Ashworth" <jra at baylink.com> wrote:
> Nope; you're right. Folks; please move the SONET semantics discussion to,
> um, outages-discuss?
>
> Cheers,
> -- jra
>
> ----- Original Message -----
>> From: "Ken J Guy" <Ken.Guy at ambest.com>
>> To: "George Bonser" <gbonser at seven.com>
>> Cc: outages at outages.org, outages-bounces at outages.org
>> Sent: Saturday, March 5, 2011 5:40:27 PM
>> Subject: Re: [outages] Major Fiber Cut in Miami
>> I'm sorry to be a kvetch, but it seems to me that a simple outage
>> notification on the "Outages" list has turned into a colloquium on
>> SONET
>> failure modes. If I should be in a different venue please flame away,
>> but
>> the SNR here for "Outages" lately is sometimes as bad as NANOG.
>>
>> Ken Guy
>> Network Architect
>> AM Best Company
>>
>>
>>
>> From:
>> "George Bonser" <gbonser at seven.com>
>> To:
>> <frnkblk at iname.com>, "Owen DeLong" <owen at delong.com>
>> Cc:
>> outages at outages.org
>> Date:
>> 03/05/2011 04:52 PM
>> Subject:
>> Re: [outages] Major Fiber Cut in Miami
>> Sent by:
>> outages-bounces at outages.org
>>
>>
>>
>>
>>
>> > On Behalf Of Frank Bulk
>> > Sent: Saturday, March 05, 2011 1:27 PM
>> > To: 'Owen DeLong'
>> > Cc: outages at outages.org
>> > Subject: Re: [outages] Major Fiber Cut in Miami
>> >
>> > While you're technically correct, it's not how it's commonly
>> > implemented.
>> > Well, maybe it's more common than I was aware. =) It's not how
>> > regional and
>> > state fiber networks in our neck of the woods do it.
>> >
>> > Frank
>>
>> Concur. If a customer buys a "ring" they expect a ring. Protection is
>> implied. If they buy a point-to-point, that is a different story. A
>> protected point-to-point might be provisioned on a ring or it might be
>> provisioned with two separate point-to-point circuits.
>>
>> A "SONET ring failure" would require two faults. That said, I have
>> seen
>> cases where both sides of the ring enter a building by the same trench
>> allowing one case of backhoe fade to take out the entire building.
>>
>>
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