Broadcast Strom

[rajmohana]

Hi !!!

We have almost 400 PCs in our network and,We have used most of hand crimped patch cords towards the switch side and user side for network connectivity.The users are facing slow logon problems sometimes which takes 15 to 20 mts for them to login into the network. Is there a possibility for a broadcaststrom to occur in a network and slow the network due to loose connectivity in the hand crimped patch cords.

Thanks

Thanks

[Bobby Thekkekandam]

Hi,

With 400 PCs in the same broadcast domain, a broadcast storm is quite possible. The only way to verify is to look at the port counters and calculate the ratio of broadcast traffic to all traffic. There's no hard number to determine how much is too much, but if you're seeing a high percentage of broadcast traffic, you may want to look into segmenting your network by dividing your network into VLANs.

More on this here:

http://www.cisco.com/univercd/cc/td/doc/product/rtrmgmt/sw_ntman/vlandir/vdir1gsg/overvw.htm#xtocid200749

Secondly, if there is a problem with the crimping, it will not cause a broadcast storm. What will happen, if the cabling is at fault here, is that you'll see a large number of layer 1 errors, such as CRC errors on the port counters.

HTH,

Bobby

*Please rate helpful posts.