I have first hand knowledge, we have implemented a core/dist/access network at cisco with L3 at the core and L2 at the acess end. I have also implemented a L3 data center using L3 dist routers and L2 access to the servers.
This design, from switch to switch across the L3 dist area, is 1ms or less in the data center and only a couple of ms from most points in the core to most points in the dist. area. I would say there was something wrong with the network you were using if the L3 switches were slower than the L2 switched, flat network.... Larry Letterman Network Engineer, IT-Lan Cisco Systems David j wrote: >Hello group, I was wondering about the following question: >Is worth to implement VLANs and L3-switching instead a flat L2-network? >I know that this question has been discussed here several times, but the >answer is always the same: depends. What I would like to know is if sombody >has implemented a L3-switched network following the "Cisco style" >(Core-distribution-access or collapsed core-access) and now the performance >is better than with a L2 network. >I had an experience with a network (about 1000 users) with VLANs and Alcatel >L3-switches that was terribly slow when you tried to transfer files between >VLANs so the staff decided migrate to a flat network, that increased the >network performance noticeably. >Do you have real experiences or links talking about real experiences that I >can check? >Thanks and advance. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58362&t=58350 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
