Can you identify your dot1q native vlan on 3550? (sh int fa0/21 switchport) If it's 1 (by default) you don't need "encapsulation dot1q vlan 1" under e0/1.1 because dot1q doesn't encapsulate frames belonging to the native vlan. Instead you can delete subif e0/1.1 and write this ip address under physical interface e0/1 OR write "encapsulation dot1q 1 native" under e0/1.1 if your router IOS is 12.1(3)T or newer. Document below explains these issues:
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 ...