Has anyone tried trunking a single VLAN with a mix of ISL & dot1Q trunks? I have a customer with 1900's, 3500's, and 3Com switches. The 3Com's only do dot1Q, the 1900's only do ISL. Since trunking is specified on a per port basis, I would think it might be possible to propagate a single VLAN over the whole environment, depending on how much frame re-writing the 3500 does. I actually set this up inadvertently in an all-3500 environment, and it seemed to be working. The 3524-PWRs were doing dot1Q trunking to the IP phones, and ISL was running on the GBIC uplinks to a 3548. This was only in place for a brief period, though, and I am wondering about broadcast/multicast and STP issues.
I hope this can help you :I have a catalyst 2948G and a catalyst 2924xl and many catalyst 1924. 2924 uplink to 2948G, 1924 uplink to 2924. 2948G and 2924 uplink is 802.1q trunk. 1924 and 2924 uplink is isl trunk. It works well.
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.