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
Question We run asr9001 with XR 6.1.3, and we have a very long delay to
login w/ SSH 1 or 2 to the device compare to IOS device. After
investigation, the there is 1s delay between the client KEXDH_INIT and
the server (XR) KEXDH_REPLY. After debug ssh serv...
Introduction The purpose of this document is to demonstrate the Open
Shortest Path First (OSPF) behavior when the V-bit (Virtual-link bit) is
present in a non-backbone area. The V-bit is signaled in Type-1 LSA only
if the router is the endpoint of one or ...
Hi, I am seeing quite a few issues with patch install and wanted to
share my experience and workaround to this. Login to admin via CLI, then
access root with the “shell” command Issue “df –h” and you’ll probably
see the following directory full or nearly ...