[c-nsp] DFC-3BXL vs DFC-3CXL

[Tassos Chatzithomaoglou]

Unless i'm reading something wrong, both have $15000 as a GPL price.

--
Tassos

Dirk-Jan van Helmond wrote on 20/2/2008 7:30 μμ:
> The 3CXL will work with a Sup720/3BXL, but will (ofcourse) operate in 3BXL
> mode. no disadvantage (except financially).
> 
> The 3CXL has some more features than the 3BXL, the ones i know of:
> - more MAC addresses
> - 3CXL is needed for vss-1440
> 
> 
> grtz,
> Dirk
> 
> 
>> I think i haven't made it clear enough....
>>
>> Let's suppose i have the following 2 systems:
>>
>> 6500/SUP720-3BXL
>> 6724-SFP (DFC-3CXL)
>>
>> 6500/SUP720-3BXL
>> 6724-SFP (DFC-3BXL)
>>
>> If i'm not mistaken both will operate in 3BXL mode, so what is the
>> disadvantage of the first one?
>>
>>
>> Now, suppose i also have the following 2 systems:
>>
>> 7600/RSP720-3CXL
>> 6724-SFP (DFC-3CXL)
>>
>> 7600/RSP720-3CXL
>> 6724-SFP (DFC-3BXL)
>>
>> If i'm not mistaken, the first one will operate in 3CXL, while the second
>> one in 3BXL.
>> So the first one would be better (in what terms? That is my secondary
>> question).
>>
>> Generally, why should i choose 3BXL, when with a 3CXL i can have a 3BXL
>> plus something more? That is my primary question.
>>
>>
>> Regards,
>> Tassos
>>
>> Arie Vayner (avayner) wrote on 20/2/2008 6:20 i`i`:
>>> Tassos,
>>>
>>> Basically, if you have a Sup720-3B, it means you have a PFC3B.
>>> If you have a module with DFC-3BXL then you will gain nothing, as the
>>> DFC has to match with the PFC model, so basically even though you have
>>> DFC-3BXL, it would operate in 3B mode.
>>>
>>> The same works the other way. If you have Sup720-3BXL and DFC-3B on some
>>> module, you would basically force the whole router to work in 3B mode.
>>>
>>> The reason for this is very simple. The DFC is basically a distributed
>>> replica of the central PFC, so they can only operate in the same mode.
>>>
>>> Arie
>>>
>>> -----Original Message-----
>>> From: Tassos Chatzithomaoglou [mailto:achatz at forthnet.gr]
>>> Sent: Wednesday, February 20, 2008 18:11 PM
>>> To: Arie Vayner (avayner)
>>> Cc: cisco-nsp
>>> Subject: Re: [c-nsp] DFC-3BXL vs DFC-3CXL
>>>
>>> Hi Arie,
>>>
>>> Can you please explain the "has to be matched" part?
>>>
>>> I have both 6500/SUP720 and 7600/RSP720 systems and i would prefer to
>>> get DFC-3CXL cards (instead of DFC-3BXL), so i can use them at their
>>> maximum efficiency in both systems (interchangeably). Isn't that
>>> possible?
>>>
>>>
>>> Regards,
>>> Tassos
>>>
>>> Arie Vayner (avayner) wrote on 20/2/2008 6:00 i`i`:
>>>> Tassos,
>>>>
>>>> DFC-3CXL is used with RSP720, while DFC-3BXL is used with SUP720.
>>>> The DFC has to be matched with the RSP/SUP module, as it is basically a
>>>> replica of the PFC.
>>>>
>>>> Arie
>>>>
>>>>
>>>>
>>>> -----Original Message-----
>>>> From: cisco-nsp-bounces at puck.nether.net
>>>> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Tassos
>>>> Chatzithomaoglou
>>>> Sent: Wednesday, February 20, 2008 17:41 PM
>>>> To: cisco-nsp
>>>> Subject: [c-nsp] DFC-3BXL vs DFC-3CXL
>>>>
>>>> I'm looking for a document describing the differences between these 2
>>>> DFC modules.
>>>>
>>>> Looking through various CCO pages, the only difference i found was the
>>>> number of mac addresses supported (64k vs 96k).
>>>> Is there anything else i'm missing?
>>>>
>>>> Also, has anyone used DFC-3CXL with 67xx modules on a 6500/SUP720-3BXL
>>>> system?
>>>> I guess they get downgraded to 3BXL, but since their price is the same,
>>>> why not get the newer ones?
>>>>
>>>> --
>>>> Tassos
>>>>
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>>>>
>>>>
>>>

> 
> 
>