Circuit numbering scheme - best practice?

Josh Potter joshpotter at
Sun Jan 18 21:31:25 UTC 2009

The number idea is nifty until you have to change your number...

On Fri, Jan 16, 2009 at 6:55 PM, Peter Wohlers <pedro at> wrote:

> Jay Hennigan wrote:
>> We've grown to the point that "The MCI T-1 in Ontario" or "Bob's ethernet
>> to port 6/23 on switch 7" aren't scaling.  Also in working with carriers we
>> are frequently asked to provide our internal circuit number.
>> I've seen a lot of the the LEC scheme NN-XXXX-NNNNNN where XXXX has some
>> significance with regard to the speed and type of circuit.  The leading NN
>> seems to be a mystery and the trailing NNNNNN is a serial number.
>> I've also seen DS1-NNNNNNN as a straight speed-serial number type of thing
>> and horrendously long circuit numbers including CLLI codes such as
>> 101/T3/SNLOCAGTH07/SNLOCA01K15 .
>> Any suggestions from those who have been down this road as to a schema
>> that makes sense and is scalable?  Are there documented best practices?
> my fave: description "XO#SF/LUXX/500032/TQW Tel#877.792.5550 ";
> Adding the NOC phone number for carrier in question is immensely useful. I
> know, long hauls with different LECs complicates things, but guarantees that
> someone will thank you at some point in time :)
> --Peter

Josh Potter

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