The scenario is that on a 6006, three span source ports are span to two span destination ports. There is communication traffic between the two span destination port. All the ports located on the same 6006.
source port 1 |------| destination port A----->Host A
source port 2 | 6006 |
source port 3 |------| destination port B----->Host B
It works fine normally. But randomly, after couple of weeks running, host A(B) can't communicate with host B(A). And in the same time, host A or host B can still communicate with other ports. We verify above situation with ping command on host A and B.
Can anyone give me a recommendation about the issue, or how to troubleshoot it?
I would check the arp table on each host and the switch when this occurs next time and see if the correct mac address is there for Host A and B. Seems like it could be an arp problem related to the spanning, but that is just a guess. You also might not want to communicate on the same port you are using to span with, a second NIC on host A and B for network access would be a good idea. I usualy span without execpting input packets from the span destination.
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.