Re: UBR setting for Verizon West ATM-based 3.0/768 speed

Ping? Did this get to the list OK? I'm just suprised that I didn't get any
reponses at all...

Thanks,

Rick Kunkel
Worldlink DSL Department
(206)361-8785

----- Original Message -----
From: "Worldlink DSL Department" <dsl@w-link.net>
To: <verizonisp@westnet.com>
Sent: Tuesday, April 05, 2005 10:35 AM
Subject: UBR setting for Verizon West ATM-based 3.0/768 speed

> Hello all,
>
> What are other people using for the UBR setting on the VC's for the
> 3.0/768 speed of Verizon's? I've found that if my settings don't match
> Verizon's pretty closely, things slow to a crawl. And I'm not talking
> like they slow to the slower of the two speed definitions. If a Verizon
> DSL customer has a 768/128 line, and I set their VC for UBR 1664, it works
> at less than modem speeds.
>
> Anyhow, early, on, Verizon gave me the following UBR values to plug into
> my router. For example, here are a few of the VC classes:
>
> vc-class atm 768-128-fr
> ubr 954
> no ilmi manage
> encapsulation aal5snap
> transmit-priority 3
> !
> vc-class atm 384-384-fr
> ubr 477
> no ilmi manage
> encapsulation aal5snap
> transmit-priority 3
> !
> vc-class atm 768-128-atm
> ubr 864
> no ilmi manage
> encapsulation aal5snap
> transmit-priority 3
> !
> vc-class atm 1.5-128-atm
> ubr 1664
> no ilmi manage
> encapsulation aal5snap
> transmit-priority 3
>
> I was actually given these values for UBR by Verizon way back when. And
> again, if I have it set just a little bit off, it all but destroy's the
> speed. I've asked SEVERAL people there what the UBR value should be for
> 3.0/768, and gotten no good answer. Currently I'm using UBR 3360, but
> that's just an educated guess. What are others using?
>
> I 'd like to make sure that everything is working optimally for the
> customers.
>
> I'm also double-checking this value because I've currently got a really
> wacko support issue open with a customer. They recently switched from a
> Fujitsu platform to a Westell platform, and upped their speed from 1.5/384
> to 3.0/768. Since they did that, if the customer send a bunch of SMTP
> traffic, his connection dies, and only a reboot of the modem fixes it.
> Other outbound traffic like heavy FTP transfers is NOT triggering it. It
> started before the speed change, but AFTER the change to the Westell
> platform. We've tried two modems and power supplies. I'm stumped and
> grasping for straws...
>
> Thanks,
>
> Rick Kunkel
> Worldlink DSL Department
> (206)361-8785
>
>
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>

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Received on Thu Apr 7 11:16:19 2005