VLAN Communication in cisco 2950 switch without help of layer 3

Answered Question
Jul 9th, 2009

I have two switch SW1 and SW2 .

SW1 managment ip-10.129.112.41

SW2 Managment IP-10.129.112.42

Both SW1 and SW2 are interconnect to eachother through trunk.

Terminal(PC) 1 is connected with sw1 .

PC1 ip is 10.129.113.44.

i want to communicate PC1 with SW2.

PC1- should be Telnet/ping to SW1.

PC1- should be Telnet/ping to SW1.

Please tell me this can be possible or not.if yes HOW.........?

I have this problem too.
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Correct Answer by davy.timmermans about 7 years 4 months ago

2900 series is a pure layer 2 switch.

Or you'll assign a port in the same vlan as the switch_management vlan

Or add a L3 capable device

Correct Answer by Jon Marshall about 7 years 4 months ago

Ravi

If PC1 is in the same subnet/vlan as SW1 & SW2 management IP addresses then you can ping/telnet. If it is in a different subnet then you cannot do this without a L3 device to route between the 2 vlans.

As you don't give the subnet masks it is not possible to say for sure whether SW1/SW2 are in different vlans/subnets than PC1.

Jon

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Correct Answer
Jon Marshall Thu, 07/09/2009 - 03:01

Ravi

If PC1 is in the same subnet/vlan as SW1 & SW2 management IP addresses then you can ping/telnet. If it is in a different subnet then you cannot do this without a L3 device to route between the 2 vlans.

As you don't give the subnet masks it is not possible to say for sure whether SW1/SW2 are in different vlans/subnets than PC1.

Jon

ravi.gyala Thu, 07/09/2009 - 03:31

SW1 managment ip-10.129.112.41 255.255.255.224

SW2 Managment IP-10.129.112.42 255.255.255.224

PC1-10.129.113.44 255.255.255.128

Correct Answer
davy.timmermans Thu, 07/09/2009 - 03:49

2900 series is a pure layer 2 switch.

Or you'll assign a port in the same vlan as the switch_management vlan

Or add a L3 capable device

jimmysands73_2 Thu, 07/09/2009 - 18:11

If your trying to reach the management of the sw's from PC1, that will not work, w/o layer 3, they are not in the same subnet.

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