12-14-2009 08:33 AM - edited 03-06-2019 08:56 AM
Hi,
I have a test bed in which i urgentely need configuration help in L3 switches:-
1) There are two switches of cisco 3750G.
2) one switch is configured with 3 vlans.
3) we need to configure second switch for redundancy .
4)A PC with linux system and with 2 LAN ports, is connected to different switches on same VLAN.
Now i have to configure both switches for redundancy, so that if one port of one switch goes down then from second switch and same vlan port, work done smothly.
Kindly suggest me solution urgently.
Regards,
Siddhartha
12-14-2009 09:28 AM
Hi Siddhartha,
Since you are using 3750s, you can stack the 2 switches together, this way when one of the switches fails, you still have the second one.
HTH
Reza
12-14-2009 10:36 AM
Hi Sidd
Stack the switches and virtually, both the switches will look like a single chassis ! you will manage the switches with one ip address and have the vlan definitions common to both the switches. Have a look at this URL:
Hope this helps. All the Best
Raj
12-14-2009 01:59 PM
Stacking the 3750's will provide you with a single switch block. This doesn't necesarily constitute redundancy from your host's perspective if your host is connected to only one of these switches.
Redundancy is achieved by connecting each host interface to ports on separate switches within the stack. You can then "bond" your ports together on the Linux side, and create an etherchannel on the switch side. You can use LACP to negotiate the etherchannel with ports connected to different switches on the 3750.
Hope this helps,
Dave
12-15-2009 05:47 AM
Stacking is the best option you have.
regards,
Varun
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