Collision Domain Query

[coolboarderguy]

Hi All,

swithes A and B are seperated by a router. 3 hosts attachred to each switch. This = 6 seperate collision domains and 2 broadcast domains, yes? Cheers.

coolboarderguy...

[mahmoodmkl]

Hi

If u have any vlans defined on the switches then u r broadcast domians are going to increase.if they are in the same vlan then u r query is correct.

Thanks

Mahmood

[globalnettech]

Hello,

in addition to Mahmood's post: your assumptions are correct, the router limits the broadcast domains, unless the router does inter-VLAN routing, in which case you would have only one broadcast domain, provided that all switchports are configured for the same VLAN. Your collision domains would always be 6, since the physical switchport itself is the boundary for the collision domain.

Have a look at the following links as well:

Broadcast Domain

http://www.linktionary.com/b/broadcast_domain.html

Collisions and Collision Domains

http://www.linktionary.com/c/collisions.html

HTH,

GNT

[scottmac]

There are EIGHT collision domains, and two broadcast domains:

The six hosts + the two links to the routers are the collision domains, and each side of the router is a broadcast domain.

Good Luck

Scott