""Priscilla Oppenheimer"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Jimmy wrote: snip for breveity
> 300 users on each floor? OK, so you do need some routers or routing switches > in there. Or at least some VLANs to contain the spread of broadcasts. > > > The > > backbone switch > > should be 10x the BW of each floor rite? > > In general, you don't need to provision enough bandwidth for every device to > be using all of its theoretical capacity all at the same time. That would be > too expensive, for one thing. Also network traffic is bursty and the > capacity isn't used all the time. And we need to know where the traffic is > flowing. Some traffic may be peer-to-peer and not cross the backbones. Some > will go to the servers. Some will go to the Internet, etc. > > There are no easy answers. I think that has become my new motto. CL: Au contraire, mon ami, there are always easy answers. And in these modern times, those easy answers are often good ones. CL: Cisco's easy answer is to put a 6509 on each floor. Maybe using the MSFC2 sup cards and the inline power RJ45 cards in case the client installs AVVID a year or two down the line. Is this a bad solution? No. CL: As an alternative, throw a 3550-12G and a few 3550-48's in each closet. gig links from the 48's to the 12G, and maybe a couple of gig ports in an etherchannel to the main closet. Is this a bad solution? No. In fact, in many ways, this is a better one because the 3550's are wire speed non blocking, while the 6509 is not. Not to mention the significantly lower cost. CL: I am not denegrating good practice, or thoughtful response. But I am suggesting that given the capabilities of current equipment, one can get away with more than was possible in the good old days of hubs. In networking as well as in sports, speed makes up for a lot of other shortcomings. Particularly 100 megabit full duplex to the desktop, and multi-gig ehterchannel uplinks. > > _______________________________ > > Priscilla Oppenheimer > www.troubleshootingnetworks.com > www.priscilla.com > > > > > > Cheers, > > Jimmy Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=54176&t=54023 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
