It is very interesting and tricky. ASA5520 has four 1Gbps interface but the box itself only support 450Mbps (According to datasheet). How to explain this? Does this mean if the interface receive 1Gbps traffic, then firewall will drop the packets? Th...

The interface G0/1 of our ASA5520 has a large number of interface resets when issue show interface command. This number increase every several minutes. Other interfaces are ok. I am very sure there is no cable and patching problems, because I have te...

in hub and spoke WAN, i got 100 spoke with 56kbps link each, how much bandwidth sould i get for hub link? thanks.

when I use show version command I get 56M memory, but when i use show memomry command i only get 15M memory total, I wonder why? thanks a lot.