You would hopefully never implement an RSFC or an RSM or an MSM because they do not have the performance capabilities of either an MSFC1 or MSFC2. The actual question is, which chassis... 7603, 6506, 6509, 6513... which Supervisor Engine... SUP1A, SUP2... which MSFC... MSFC1 or MSFC2... how much DRAM and flash on the Supervisors and MSFC's... and which code to run... Sup IOS 12.1 E train or 12.2 S train... CatOS 5.5.x, 6.1.x, 6.2.x, 6.3.x, 7.1.x + MSFC IOS 12.1 E train or 12.2 S train, or Linux? Wait did I say Linux? Yes, I did. http://www.ayrnetworks.com/
The cost difference between SUP III (or SUP IIIg) with or without NFFC I or II and/or RSM and/or RSFC ... in comparison to say... a SUP1A/PFC1/MSFC2 is almost nothing. And the cost difference between say a SUP1A/PFC1/MSFC2 and a SUP2/PFC2/MSFC2 is also practically very little. You can't use an MSFC without a PFC. You can do layer 3 stuff without an MSFC and with PFC only, but no routing protocols, not even HSRP. You can do ACL's and QoS things, but still not everything. You can do RSPAN. You need an MSFC to do routing, just like you need a 7x00 or RSM to do routing with an NFFC/NFFC-II. So the disadvantage would be that you can't do anything because it doesn't work. Start looking at other vendors for cheap Gigabit Ethernet aggregation that can do BGP4, OSPF, ISIS, MPLS, PBR in one box that makes sense. Or you can have your packet headers go across one switch fabric, while the payloads take a different fabric path while you start getting pinnacle coil asic errors simultaneously. Or you can run some crazy Layer 3 hardware switch that starts software routing at about 32k flows with MLS. Or you can install separate blades like the RSM which take up your slots even though you can't use slot 13 and there are three separate backplanes at 1.2 Gbps instead of the claimed 3.6 Gbps. Or you can continue to support vendors who do this a second time with the SFM and have modules with DFC and without and with OSM and without and with "WAN" GbE and all sorts of strange things. Or you can hope and pray that the ACL's don't start software routing everything again and whether you are going to go full flow by enabling some feature or your NetFlow or SNMP counters never work because the vendor can't fix them. I really enjoy it when I see some shiny Foundry, Force-10, or Riverstone layer 3 switches in data centers because I admire the will of those people to drop brand-C and promote something that makes sense even if it takes 15 minutes to get a full BGP table on them. Wow I really really hate vendors. All vendors suck. Nobody can do a layer 3 switch or even a cheap, fast, scalable gigabit ethernet router of any kind. I'm sick of hearing... Cheap, Fast, Scalable... pick two.... GET IT RIGHT YOU STUPID VENDORS!@#! -dre ""Cisco Nuts"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Hello, > When would one implement a RSFC over a RSM or a MSFC over a MSM? Also, do > these cards go along with a NFFC II (for the RSM or RSFC) and a PFC (for the > MSM or the MSFC)? > What would be the disadvantage if any of not using a NFFC II with a RSFC or > the PFC with the MSFC? > Thank you. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=40271&t=40259 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
