[c-nsp] bonded T1s into 7206VXR

MADMAN david.madland at qwest.com
Mon Feb 21 16:47:17 EST 2005


   Your customer is correct and with the new MOE serivces most carriers 
offer the 5M pipe may well be less expensive.

   You have more simplicity and less overhead with the 5M connection 
though the bonded T1s do give you some redundancy in the event of a 
circuit failure(s).

   Dave

Adam Greene wrote:

> OK, folks, here's another related question: we're trying to choose between
> these bonded T1's and a 5M fiber connection, for a collocation customer in
> our datacenter. The customer is slightly concerned that the bonded T1's will
> provide less effective bandwidth than the fiber connection, due to the 1.5M
> nature of each individual circuit.
> 
> In my experience, T1's tend to get slow when I try to push >1.35M through
> them. I'm wondering if (3) bonded T1's will actually result in more like 4M
> of effective bandwidth.... From that p.o.v. a single 5M circuit over fiber
> might give slightly better performance.
> 
> Any experience welcome....
> 
> Thanks again for all your help
> --Adam
> 
> 
> ----- Original Message ----- 
> From: "Paul Stewart" <pauls at nexicom.net>
> To: "Adam Greene" <maillist at webjogger.net>
> Cc: <cisco-nsp at puck.nether.net>
> Sent: Monday, February 21, 2005 2:22 PM
> Subject: Re: [c-nsp] bonded T1s into 7206VXR
> 
> 
> 
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>>Yes.. definately can break things.. sorry, forgot to mention that :)
>>
>>Paul
>>
>>
>>Adam Greene wrote:
>>| Thanks, all, for these very helpful replies. I did a little digging
>>into ip
>>| load-sharing per-packet and see that although this technique will
>>spread the
>>| traffic evenly over multiple links, packets may arrive out of order,
> 
> which
> 
>>| could cause performance problems for VoIP and some video streams.
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> 
> 
> ---
> [This e-mail was scanned for viruses by Webjogger's AntiVirus Protection System]
> 
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> 

-- 
David Madland
CCIE# 2016
Sr. Network Engineer
Qwest Communications
612-664-3367

"Emotion should reflect reason not guide it"


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