09-05-2008 08:16 AM - edited 03-03-2019 11:25 PM
09-05-2008 09:53 AM
There are many definitions for a virtual router, depends on the situation.
One of them is an application that simulates a router. i.e. dynamips http://www.ipflow.utc.fr/index.php/Cisco_7200_Simulator
Another one is a protocol that advertise a "virtual router" (an abstract representation of master and backup routers acting as a group). Virtual Router Redundancy Protocol (VRRP) http://en.wikipedia.org/wiki/Virtual_router_redundancy_protocol
09-05-2008 12:06 PM
And of course VRF instances allow you to maintain and utilize separate routing tables for each instance. If you were to toss out "virtual router" that would be the first thing to pop into my head.
09-05-2008 01:27 PM
Hello,
on high end routers like CRS you can logically partition the chassis and the linecards in so called virtual routers that will have separate management, interfaces, a share of resources.
Other vendors call virtual router the equivalent of an MPLS VRF
Hope to help
Giuseppe
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