2610

Unanswered Question
Dec 4th, 2007

Hi,


we would like to config 802.1q on 2610 router. We have 21 VLAN. default, 10 VLAN for different department PCs and 10 VLAN for different department IP phones.

Does it support around 300 users with 21 VLAN? Any performance issue?


regards




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Paolo Bevilacqua Tue, 12/04/2007 - 09:22

Yes, you can configure that many VLANs, the issue is that you won't be able to route at wire speed between VLANs. Expect like 10 Mbps or less and very high CPU usage.


Because of this, it's recommended to use a layer 3 switch, like the 3560 8-port, for inter-vlan routing.


Hope this helps, please rate post if it does!



ccbootcamp Tue, 12/04/2007 - 10:05

So you want to do routing on a stick with a 10MBs connection with all those VLANs? Not sure, but you could run into performance/bandwidth issues shoving a lot of traffic down the 10MBs link. What are you trying to accomplish?


-brad

www.ccbootcamp.com

(please rate the post if this helps!)

anitachoi3 Tue, 12/04/2007 - 21:59

Hi,


we use FE (100M) to config VLAN. does it have performance/bandwidth issue?


regards


ccbootcamp Sun, 12/09/2007 - 06:23

an nm-2fe-2w and an NM-1FE2W-V2 doesn't work in a 2600 (unless it's a 2691). read the info in the link that you posted under "Table 3. Maximum number of network modules that are supported in the 2600, 2691, 3600, 3700 and 3800 families is shown below.."


-brad

http://www.ccbootcamp.com

(please rate the post if this helps!)


anitachoi3 Sun, 12/09/2007 - 06:29

hi,

does it have performance issues if it is 2691? we config the FE as VLAN.


regards


ccbootcamp Sun, 12/09/2007 - 06:33

depends, how much traffic you're trying to pass down the single pipe. the router cpu itself will not have performance issues, it's the size of the pipe at 100MBs passing mulitple traffic between VLANs that you have to worry about. go ahead, set it up, and watch the bandwidth on the interface. if you are passing a lot of traffic back and forth between the VLANs, you're going to run into issues and should consider an L3 switch (like pete said above).


-brad

http://www.ccbootcamp.com

(please rate the post if this helps!)

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