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 ìì: >> 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:[EMAIL PROTECTED] >> 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 ìì: >>> 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: [EMAIL PROTECTED] >>> [mailto:[EMAIL PROTECTED] 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 >>> >>> _______________________________________________ >>> cisco-nsp mailing list [email protected] >>> https://puck.nether.net/mailman/listinfo/cisco-nsp >>> archive at http://puck.nether.net/pipermail/cisco-nsp/ >>> >>> >> >> >> > > -- > *************************************** > Tassos Chatzithomaoglou > Network Design & Development Department > FORTHnet S.A. > <[EMAIL PROTECTED]> > *************************************** > _______________________________________________ > cisco-nsp mailing list [email protected] > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
