Re: [c-nsp] Nexus evolution
On 28/09/2010, at 9:44 AM, William Cooper wrote: > I'm still a bit confused... I've a pretty significant investment in > the 65/7600's; am I vested > in having a 3 tier architecture for the foreseeable future? the historical reasons as to why a certain number of tiers were chosen was mostly around port count, scale, density and limiting the scope of a failure domain. speeds, density and control-plane scale have increased over time such that its certainly possible to reduce the number of layers in a network. do we recommend this? actually, we aren't religious. you build a network to meet your requirements. you could keep building in a 3-tier architecture the way you do today. or you could choose to consolidate/collapse layers in part or in whole. people today collapse core/agg layers. or agg/access. or even core/agg/access. or none of the above. you could keep the C6K, its not as if its going away any time soon. but certainly there are 'newer' platforms like Nexus, more targeted at data center where there is increased scale/density available. as others on this thread have noted, Nexus 2000 FEX support is imminent on Nexus 7000 which for many people does provide a "best of both worlds" -- a highly scaleable feature-rich modular switching platform with modularity and HA that works well -- combined with cabling benefits & reduced management touch points with FEX. it effectively gets you to >1500 gigabit ports in a system. cheers, lincoln. ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] Nexus evolution
I'm still a bit confused... I've a pretty significant investment in the 65/7600's; am I vested in having a 3 tier architecture for the foreseeable future? On Mon, Sep 27, 2010 at 2:08 PM, Quinn Snyder wrote: > we are deploying them in ~50 sites (mix of 7010, 7018). smattering of > 5k/2248 when needed. using them in a collapsed core (agg, core vdc > model) to replace existing 650x/sup720 cores. > running light services (eigrp, qos, multicast) but using vpc to > provide full redundancy between 45xx/65xx closets. > seemed like a decent choice based on lifecycle and the release of 5.0 > for the 7k. does what we need it to do and redundancy is there. > still feels rough, but nowhere like it used to be. > > q. > > -= sent via iphone. please excuse spelling, grammar, and brevity =- > > On Sep 27, 2010, at 9:32, Seth Mattinen wrote: > >> About a year ago there were some large-ish threads on the Nexus and a >> couple people that had them in production had commented that there were >> bugs that made them feel like test subjects, plus a various assortment >> of unexpected limitations. How much has this changed over the last year? >> >> I do notice that the 2248TP fabric extender supports direct to 7k, and >> the 22xxTP datasheet lists 100/1000 as supported speeds. I've been >> researching a 7k as a candidate for a small colo datacenter, and to me >> it seems like it's matured quite a bit (on paper, anyway). >> >> ~Seth >> ___ >> cisco-nsp mailing list cisco-...@puck.nether.net >> https://puck.nether.net/mailman/listinfo/cisco-nsp >> archive at http://puck.nether.net/pipermail/cisco-nsp/ > ___ > cisco-nsp mailing list cisco-...@puck.nether.net > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ > ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] Nexus evolution
we are deploying them in ~50 sites (mix of 7010, 7018). smattering of 5k/2248 when needed. using them in a collapsed core (agg, core vdc model) to replace existing 650x/sup720 cores. running light services (eigrp, qos, multicast) but using vpc to provide full redundancy between 45xx/65xx closets. seemed like a decent choice based on lifecycle and the release of 5.0 for the 7k. does what we need it to do and redundancy is there. still feels rough, but nowhere like it used to be. q. -= sent via iphone. please excuse spelling, grammar, and brevity =- On Sep 27, 2010, at 9:32, Seth Mattinen wrote: > About a year ago there were some large-ish threads on the Nexus and a > couple people that had them in production had commented that there were > bugs that made them feel like test subjects, plus a various assortment > of unexpected limitations. How much has this changed over the last year? > > I do notice that the 2248TP fabric extender supports direct to 7k, and > the 22xxTP datasheet lists 100/1000 as supported speeds. I've been > researching a 7k as a candidate for a small colo datacenter, and to me > it seems like it's matured quite a bit (on paper, anyway). > > ~Seth > ___ > cisco-nsp mailing list cisco-nsp@puck.nether.net > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] Nexus evolution
Next major s/w release (Cairo, release # most likely to be 5.1) supports 2248 to n7k directly. 2232 comes a bit later (within 6-8 months). Hope that helps, Tim At 09:45 AM 9/27/2010, David Freedman declared: I believe that this direct-to-7k support is only just being released in s/w (aug/sep) and it will be limted to 32 FEX per 7k (and fex must be 2248 or 2232, 2148 not supported) Tim Stevenson, tstev...@cisco.com Routing & Switching CCIE #5561 Distinguished Technical Marketing Engineer, Cisco Nexus 7000 Cisco - http://www.cisco.com IP Phone: 408-526-6759 The contents of this message may be *Cisco Confidential* and are intended for the specified recipients only. ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] Nexus evolution
Seth Mattinen wrote: > About a year ago there were some large-ish threads on the Nexus and a > couple people that had them in production had commented that there were > bugs that made them feel like test subjects, plus a various assortment > of unexpected limitations. How much has this changed over the last year? > > I do notice that the 2248TP fabric extender supports direct to 7k, and > the 22xxTP datasheet lists 100/1000 as supported speeds. I've been > researching a 7k as a candidate for a small colo datacenter, and to me > it seems like it's matured quite a bit (on paper, anyway). > I believe that this direct-to-7k support is only just being released in s/w (aug/sep) and it will be limted to 32 FEX per 7k (and fex must be 2248 or 2232, 2148 not supported) If this doesn't work for you then you need to retain your 5k agg layer. Dave. > ~Seth > ___ > cisco-nsp mailing list cisco-nsp@puck.nether.net > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ > -- David Freedman Group Network Engineering Claranet Group ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
Re: [c-nsp] Nexus evolution
We are deploying 7-5-2 like mad. Stable platform for its age. On Sep 27, 2010 12:34 PM, "Seth Mattinen" wrote: > About a year ago there were some large-ish threads on the Nexus and a > couple people that had them in production had commented that there were > bugs that made them feel like test subjects, plus a various assortment > of unexpected limitations. How much has this changed over the last year? > > I do notice that the 2248TP fabric extender supports direct to 7k, and > the 22xxTP datasheet lists 100/1000 as supported speeds. I've been > researching a 7k as a candidate for a small colo datacenter, and to me > it seems like it's matured quite a bit (on paper, anyway). > > ~Seth > ___ > cisco-nsp mailing list cisco-nsp@puck.nether.net > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
[c-nsp] Nexus evolution
About a year ago there were some large-ish threads on the Nexus and a couple people that had them in production had commented that there were bugs that made them feel like test subjects, plus a various assortment of unexpected limitations. How much has this changed over the last year? I do notice that the 2248TP fabric extender supports direct to 7k, and the 22xxTP datasheet lists 100/1000 as supported speeds. I've been researching a 7k as a candidate for a small colo datacenter, and to me it seems like it's matured quite a bit (on paper, anyway). ~Seth ___ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
