It is a good idea to check the CAM agingtime of the Vlan. If the switch is receiving TCNs it will discard the MAC table earlier (for inactive addresses).
There is a rare situation when the switch will not hear about the MAC address of a destination station - when a source sends data to a passive destination. In this case the switch will flood the unicast traffic. Regards, Alaerte "John Neiberger" @groupstudy.com em 11/09/2002 11:23:47 Favor responder a "John Neiberger" Enviado Por: [EMAIL PROTECTED] Para: [EMAIL PROTECTED] cc: Assunto: Re: Strange CAT5500 issue [7:53089] He will see broadcast traffic, multicast traffic, and unknown unicast traffic. If a switch is not aware of the destination it will flood the traffic out all switch ports. John >>> "[EMAIL PROTECTED]" 9/11/02 7:09:05 AM >>> Greetings all, I have a user connected to a WS-C5500 switch running 4.2(1) software. The user was running a monitoring software when he noticed unicast traffic destined to a different IP address being captured on his machine. All traffic he's seeing are in the same vlan he is, nothing from other vlans. Any of you guys seen this before? He only should see broadcast and multicast traffic, right? Thanks...............Nabil "I have never let my schooling interfere with my education." Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=53107&t=53089 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
