Why did the trace NOT show the other switches in between?

[grapevine]

I have a PC that is connected to a switch (A) in a network. Switch A has many switches in between and connects to another switch B. When I did a trace to the server, the last switch I see in the result is switch B. Also, when I checked to which port of switch B that the server was connected, It showed as Po1. When I did a show cdp neighbor for the interfaces for the interfaces involved inthe bundle, I get a switch and then another. Why did the trace NOT show the other switches in between? Why did I get an arp on Switch B? Could some one explain?

[John Blakley]

It's hard to tell, but if you have L2 switches, the addresses on those L2 switches are for management purposes only and you won't see a response from a trace. The only time you'll see a response is when the packet is routed between devices and not switched. You'll get an arp request/response across a single vlan. If you have vlan 10 across 10 switches, all 10 switches will see an arp request because they're broadcasted throughout the whole vlan.

HTH,
John

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