Solved: Switch broadcast

mangesh_extc · ‎01-24-2010

how to check broadcast received on a port.

Ganesh Hariharan · ‎01-24-2010

how to check broadcast received on a port.

Hi Mangesh,

If you want to check broadcast frome arriving in switch port just make that port to sniff the traffic of the network and you will find a frame with a hexadecimal MAC address of FF-FF-FF-FF-FF-FF. This hexadecimal address is equivalent to 48 binary “ones.”

The meaning of this address in Ethernet is simply that this frame is intended to be received and processed by every node on the network of computers. Broadcast frames are generated when certain network services need to make announcements to other hosts on the network.

Hope it will help out your query !!

If helpful do rate the valauble post.

Regards

Ganesh.H

View solution in original post

Ganesh Hariharan · ‎01-24-2010

how to check broadcast received on a port.

Hi Mangesh,

If you want to check broadcast frome arriving in switch port just make that port to sniff the traffic of the network and you will find a frame with a hexadecimal MAC address of FF-FF-FF-FF-FF-FF. This hexadecimal address is equivalent to 48 binary “ones.”

The meaning of this address in Ethernet is simply that this frame is intended to be received and processed by every node on the network of computers. Broadcast frames are generated when certain network services need to make announcements to other hosts on the network.

Hope it will help out your query !!

If helpful do rate the valauble post.

Regards

Ganesh.H

mangesh_extc · ‎01-25-2010

Thanks Ganesh

But how can check it from my machine if my machine is connected to that switch and I have no access to switch.

Ganesh Hariharan · ‎01-25-2010

Thanks Ganesh

But how can check it from my machine if my machine is connected to that switch and I have no access to switch.

Hi Mangesh,

You cannot check unless you dont have access to switch that your pc is connected to which switch port by issuong show arp command in switch. Yes you can do arp -a in command prompt if the swicth is given an ip address of the vlan in which your pc is connected then you can see the ip of the switch.

Hope to help

Regards

Ganesh.H

Mohamed Sobair · ‎01-25-2010

Hi,

You could use any software tools like (wireshark) for example to pin point the location of the broadcast, however, you have another option is to check the Switch interface itself, it should show you number of broadcast packets recieved on a port by issuing normal command (show interface x ).

HTH

Mohamed