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Cisco ASA 5510 Router On A Stick Question

I currently have a Cisco ASA 5510 setup as a Router On A Stick. I do not have the security plus installed on the ASA which would give me the two gigabit ports so I am currently running @ 100mb at the ASA. I have three VLANS setup on Ethernet 0/2 that are then being sent to three Layer 2 (PowerConnect 2748) 1GB cascading switches. My question, with this configuration am I getting a intra vlan bottleneck with the 100mb at the ASA or are my layer2 switches smart enough to make necessary routes between VLANs?

Would getting the ASA5510-SEC-PL license help the speed of my network?

danielc25

Your layer 2 switches can not route between VLANS. The best case scenario would be to get a L3 switch to handle all of your internal routing so that there is no router on a stick bottleneck. Are the PowerConnect 2748 switches interconnected as well? Some more information on your topology would be helpful.

jhakie

ASKER

yeah, all the PowerConnect 2748 are interconnected...

danielc25

If each of the switches have a link to the ASA then spanning-tree will prefer this as long as the ASA is configured with the lowest spanning-tree priority. Can you verify which path your traffic is taking?

danielc25

What version of code are you running on the ASA?

jhakie

ASKER

8.2(4)

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danielc25

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jhakie