3750 as Core Switch, need to configure Active/Active in CORE

[BALAMURUGAN SINGARAM]

We have two 3750 as core switch and 2960 switch as edge switch. Please let me know how to design 3750 as active/active core switch.

In Access switch can we use HSRP or VRRP, please suggest.

[bernardo81 · Accepted solution]

Hi

I have 2 x 3750 as core switches, one good idea is to use Stackwise technologie.

This makes the switches act like a cluster.

Then you can use Etherchannel to connect to your Edges

Regards,

[BALAMURUGAN SINGARAM]

Thanks for the reply, this is the best approach or any alternate design is there ?

[bernardo81]

This is good design, and it will provide HA.

Maybe there is other alternative (i think using spanning-Tree, if someone can assist it will be great.

One quick hint: Don't forget to interconnect the 3750 and 2960 in a cross-connect way to have

full redundancy.

[Joseph W. Doherty]

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Posting

The "best approach" would depend on your network requirements, expected usage and your equipment.  For example, 3750s using StackWise, rather than StackWisePlus are more likely to overload their ring, so having them as separate independent devices would be better in that case.  But, the ring has more bandwidth then ordinary Ethernet connections.

Having them stacked allows MEC between the core and the 2960.

The 3750 series does not support GLBP, so if you want to use them active/active, you would need to split hosts to use two different VLAN gateways (one per 3750).