Switch connection Design

[Xiaojing Li]

Hi,

I am new to the Cisco Switch, my customer want to connect switch in the draft, but i think there will be a looping coming out. How to configure to avoide looping?

Thanks

[mfurnival]

Spanning tree is your friend

[stephen.ehlas]

Rapid Per vlan spanning tree +

[InayathUlla Sharieff]

STP is used to prevent loops occurring in the network.....

Regards,

Inayath

[Stavros Zannikos]

Definitely STP if you plan on staying at layer 2.  If you can afford it, I'd do layer 3 throughout.  In a real world environment, you'd want to have dual cores, for redundancy reasons.  You could then have two connections, on each switch, back to the core (one connection in core1, and one connection in core2).  Therefore you've added redundancy to your plan. 

[michael_eaves]

For Cisco switches: STP is on by default, which would make all the comments true.  Me personally... I'd connect each of the access switches to the top switch individually.