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how does duplex work in relation to switches and hubs

Sufregs — Mon, 05 Jul 2010 16:41:36 +0000

how does duplex work in relation to switches and hubs

Allowing Vlans between Cisco L3 switch and 3 com Layer2 switch.

AmeenM — Sun, 13 Jun 2010 06:29:37 +0000

Hello All,

I have a cisco Cat 3560G switch trunked to a 3com 4200 L2 switch. I have 4 Vlans created on the Cisco L3 switch like Vlan 10, 20, 30 and 40 and created only 20 and 30 on the 3 COM. All the trunk port configurations are fine. However when i assign a PC to any existing Vlan in the 3 COm like 20 or 30 i am not able to reach the the Vlan ip in the Cisco Cat switch. And also should i create the other Vlans also like 10 and 40 on the 3 com for full communications between the 2 switches. Could any one please help me?? Thanks in advance.

trace route problem in the same subnet Alcatel Core switch connecting several VLANS togethers

Qu — Tue, 16 Mar 2010 13:40:43 +0000

We have an Alcatel Core switch connecting several VLANS togethers. Everything is running fine as we desire, except for the following problem. If I run the trace route (tracert) from a computer to another and these two computers are on the same subnet and connected to the same switch module, in some cases I get a reply from the Gateway not from the other computer. Normally, I should get the answer directly from the other computer in almost no time. But Sometimes I get a reply from the gateway and the reply comes too late (about 50 ms), then second answer come from the other computer in less than 1 ms. What I have to add is that, when I run ping -t the destination address, all the replys comes in less than 1 ms. So please can you guide me what I have to do in order to solve this problem.