What is the switch in question? I don't know what "virtual interface redundancy" is supposed to mean either. A virtual IP address generally refers to the use of either HSRP or VRRP, both of which are high-availability protocols that have the concept of a virtual IP address. You can search Cisco's site for more information.
A VLAN interface isn't related to redundancy. They're typically used on layer-3 switches to act as virtual layer-3 interfaces. You assign an IP to the VLAN interface and it acts as a default gateway to devices attached to ports in that VLAN. Then the traffic is routed as necessary. In Cisco-speak they're referred to as switched virtual interfaces (SVI's).
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 ...