05-13-2006 12:19 PM - edited 03-10-2019 03:00 AM
hello everybody,
why can i only monitoring received (rx) traffic on a VLAN ?
thanks for an answer...
05-13-2006 12:26 PM
Hi
What do you mean?
Are you talking about SPAN (mirrored) port?
Please explain a little more.
What Catalyst model are you using?
Alberto Giorgi from spain
05-13-2006 01:09 PM
hi alberto,
yes, i will monitoring all the traffic on the vlan (vlan based span). the plattform is 3550-12G switch. what can i do for monitorig all the traffic in our campus lan?i can take only one port (physical) for source traffic monitoring rx and tx (both), so i have 12 ports for monitorig...what can i do, i dont find a solution!
nik
05-13-2006 01:02 PM
Hi again:
Ingress/Egress SPAN
In the example in the section Monitor VLANs with SPAN, traffic that enters and leaves the specified ports is monitored. The field Direction: transmit/receive shows this. The Catalyst 4500/4000, 5500/5000, and 6500/6000 series switches allow you to collect only egress (outbound) or only ingress (inbound) traffic on a particular port. Add the keyword rx (receive) or tx (transmit) to the end of the command. The default value is both (tx and rx).
set span source_port destination_port [rx | tx | both]
Have you defined only rx keyword?
I hope this help. Please rate if it does.
Best regards
Alberto Giorgi from spain.
05-13-2006 01:59 PM
hi,
yes, in the configuration for vlan monitoring i can only monitor rx traffic, why again?. an other solution is monitoring the source gigabitinterfaces...on this way i can only 1 interface take for rx and tx (both) monitoring, but i have 8 gigabitinterface for monitoring...the cisco 3550-12G plattform dosent support more sourceports.
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