[c-nsp] 6509 Sup720-3B with 6816-GBIC and DFC

[Sam Munzani]

Ian Cox wrote:

> At 11:31 AM 9/7/2004 -0500, Sam Munzani wrote:
>
>> comments inline,
>>
>>>>
>>>> Which brings up another question for me: Can you use any of the DFC3s
>>>> (WS-F6700-DFC3B, WS-F6700-DFC3A, WS-F6700-DFC3BXL) on any line card 
>>>> that
>>>> supports DFC3s?
>>>
>>>
>>>
>>> The WS-F6700-xxx DFCs only function on the WS-X67xx series line 
>>> cards. It has a totally different connector to the one that is 
>>> required for the WS-X6516s, and WS-X6816 module, they require the 
>>> WS-F6K-xxx DFCs. The DFC3b, DFC3bXL DFCs for WS-X615s and WS-X6816 
>>> have not been released yet. Contact your account team to get the FCS 
>>> date for these DFCs.
>>>
>>> Ian
>>
>>
>> Ian,
>>
>> This is what we have plans to purchase and our Account Team blessed it.
>> WS-SUP720=
>> GLC-SX-MM
>> WS-X6516A-GBIC=
>> WS-F6K-DFC3A=
>>
>> We wanted to use Distributed Forwarding on all our Gig ports and were 
>> told to purchase DFC3A daughter card for it.
>> 1. Are these compatible?
>
>
> Yes, because it is a "WS-F6K" and your installing it on a WX-X6516A, 
> the WS-X67xx cards take WS-F6700-xxx DFCs.
>
>> 2. Do thoese SFP gig ports on Sup720 need DFC or is it built in since 
>> the ports are physically on Sup module?
>
>
> The Supervisor GE ports switching is controlled by the PFCx that is 
> part of the Supervisor.
>
>> 3. Will EoMPLS work with this hardware?
>
>
> No. EoMPLS requires DFC3b or DFC3bXL along with a Supervisor with 
> PFC3b or PFC3bXL. You could have EoMPLS supported on the above 
> configuration if you do not install the WS-F6K-DFC3A= on the 
> WS-X6516A-GBIC= module and the Supervisor is a PFC3b or PFC3bXL based 
> Supervisor. If you wish to have EoMPLS and DFCs for all Gig ports I 
> would recommend changing the Gigabit card listed above to a WS-X6724 
> (It uses SFPs instead of GBICs) with a WS-F6700-DFC3b or 3bXL DFC.
>
> Ian

We wanted to go with PFC3B route but could not because at the time of 
e-rate submission, it was not available. I guess we are stuck with PFC3A 
and without EoMPLS till next upgrade budget. The current network does 
not require EoMPLS so didn't justify PFC3bXL at the time of e-rate 
submission. However we see eventually using EoMPLS down the road(Not 
near term though)

I appreciate the clear cut explaination(that I should have got from our 
Acount Manager or SE)

Thanks,
Sam