Mailing List Archive

On Tue, 2004-01-20 at 17:55, Alexandre Abreu wrote:

> Anyone successfully tried to connect a Juniper PE-2E3 PIC to a Cisco
> PA-2E3 using a DSU mode other than kentrox? I'm targetting the use of
> digital link dsu mode (no subrate) but it doesn't work well. The link
> comes up, but there's a lot of packet loss. I've tried all
> combinations for clock sources, scrambling modes, ... but can't seem
> to get it to work properly.

We have tried that and experienced the same problems you are describing
(lots of errors on the interface). By playing around with various
e3-options it got somewhat better (I seem to remember we needed to set
the "e3-options idle-cycle-flag ones" among other things), but since it
seems like Cisco and Juniper have a different opinion on "Digital Link"
mode, we gave up playing around with it and just went with using Kentrox
mode ("dsu mode 1" on the Ciscos) everywhere, since that works fine.

/leg

Thanks for your answer. I also tried that (the "idle-cycle-flag ones")
and, like in your case, it didn't solve the problems. Since, in te
production scenario, this connection is to be made to another entity
(using a digital-link dsu) we are not able to change to kentrox. Getting
it to work back-to-back with a VXR in digital-link mode is the only way
I have for now to guarantee it will (probably...) work with the
digital-link dsu we have to connect to.

AA

-----Original Message-----
From: Lars Erik Gullerud [mailto:lerik@nolink.net]
Sent: quarta-feira, 21 de Janeiro de 2004 9:06
To: Alexandre Abreu
Cc: juniper-nsp@puck.nether.net
Subject: Re: [j-nsp] PE-2E3 with Cisco VXR

On Tue, 2004-01-20 at 17:55, Alexandre Abreu wrote:

> Anyone successfully tried to connect a Juniper PE-2E3 PIC to a Cisco
> PA-2E3 using a DSU mode other than kentrox? I'm targetting the use of
> digital link dsu mode (no subrate) but it doesn't work well. The link
> comes up, but there's a lot of packet loss. I've tried all
> combinations for clock sources, scrambling modes, ... but can't seem
> to get it to work properly.

We have tried that and experienced the same problems you are describing
(lots of errors on the interface). By playing around with various
e3-options it got somewhat better (I seem to remember we needed to set
the "e3-options idle-cycle-flag ones" among other things), but since it
seems like Cisco and Juniper have a different opinion on "Digital Link"
mode, we gave up playing around with it and just went with using Kentrox
mode ("dsu mode 1" on the Ciscos) everywhere, since that works fine.

/leg





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Vodafone (Portugal)

Hi,

Juniper E3 works in clear channel mode by default. While, Cisco PA-E3
works in Digital-link mode by default.

There is one way to connect Juniper E3 to a Cisco PA-E3 using DSU mode
of Digital-link.

At Juniper side:
Configure PA-E3 to work in Digital-link mode with subrating of 33.7 Mbps

At Cisco side:
Configure PA-E3's DSU bandwidth = 33700 kbps

I am sure it will help you.

Thanks,
KK Verma


Lars Erik Gullerud wrote:

>On Tue, 2004-01-20 at 17:55, Alexandre Abreu wrote:
>
>>Anyone successfully tried to connect a Juniper PE-2E3 PIC to a Cisco
>>PA-2E3 using a DSU mode other than kentrox? I'm targetting the use of
>>digital link dsu mode (no subrate) but it doesn't work well. The link
>>comes up, but there's a lot of packet loss. I've tried all
>>combinations for clock sources, scrambling modes, ... but can't seem
>>to get it to work properly.
>>
>
>We have tried that and experienced the same problems you are describing
>(lots of errors on the interface). By playing around with various
>e3-options it got somewhat better (I seem to remember we needed to set
>the "e3-options idle-cycle-flag ones" among other things), but since it
>seems like Cisco and Juniper have a different opinion on "Digital Link"
>mode, we gave up playing around with it and just went with using Kentrox
>mode ("dsu mode 1" on the Ciscos) everywhere, since that works fine.
>
>/leg
>
>
>_______________________________________________
>juniper-nsp mailing list juniper-nsp@puck.nether.net
>http://puck.nether.net/mailman/listinfo/juniper-nsp
>

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