Re: E2E circuit issue

Hi Group

I am working on a project in Saudi Arabia, and dealing with the local telco
here, STC. We have bought from them a Ethernet to Ethernet 4MB link from
Riyadh to Qassim.

On the Riyadh end they have presented a Cisco ME3400 and assigned us a
Ethernet port on it. On the Qassim end they have presented a SDSL Thomson
modem with an Ethernet port assigned on it. (I believe it is configured in
'bridge mode') In between Riyadh and Qassim is the STC MPLS cloud. The STC
connectivity is as follows -

Riyadh end - Cisco ME3400 - Cisco 7609 (PE) - STC MPLS - Cisco 7609 (PE) -
MSAN - Thomson SDSL Modem - Qassim end

My issue is that the Ethernet to Ethernet is not functioning as one Layer 2
broadcast domain, which is what we wanted to order. We are getting some
strange inconsistent results. When I configure 2 Laptops in the same subnet,
the two PCs ping fine. When I configure two cisco 2960 switches, back to
back and configure an SVI with the same subnet on both ends, it fails to
ping. When i configure a Cisco MWR2941 with SVI on both ends in the same
subnet, ping works but has to be initiated from Qassim end. If line is idle,
Riyadh end will not ping unless traffic is initiated from the Qassim end,
where the SDSL modem is.

I spoke to STC engineer and he informed me that on the Qassim SDSL end we
HAVE to have a Router and not a switch.According to the engineer the SDSL
modem has to have a Router connected to it and not a switch. If i plug in a
router, then this is clearly not a end to end Layer 2 braodcast domain.

Has anyone experience in this kind of setup. I am struggling to understand
the STC engineers as their is a big issue with communication, the
engineers don't speak good english.

Please can someone explain what they think is going on, and why I need a
router to connect to the SDSL modem and not switch?

Kind Regards
Sid

On Fri, Jul 8, 2011 at 12:05 PM, imran ali <immrccie_at_gmail.com> wrote:

> hi irfan,
>
> post full question
>
>
> On Fri, Jul 8, 2011 at 10:36 AM, Irfan Sid <lifeoverip_at_iigmail.com> wrote:
>
>> Hi Group
>>
>> I am working on a project in Saudi Arabia, and dealing with the local
>> telco
>> here, called
>>
>>
>> Blogs and organic groups at http://www.ccie.net
>>
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Received on Fri Jul 08 2011 - 13:31:31 ART