The native vlan on a trunk port is the vlan that does not have an 802.1q tag. So multiple vlans can go across an 802.1q trunk port and the switch distinguishes between the vlans by the 802.1q vlan tag attached to the frames. The native vlan, vlan 1 by default, does not have an 802.1q tag.
The native vlan is there for backward compatability with switches that do not understand 802.1q tags. Cisco recommend either
1) tag all vlans including the native vlan
2) change the native vlan to something other than vlan 1. The vlan you choose does not have to any ports allocated to it and does not need to have a L3 SVI. The command to change the native vlan on a trunk port is
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.