What is Route target import?
A route-target extended community, or route target, is a type of BGP extended community that you use to define VPN membership. The route target appears in a field in the update messages associated with VPN-IPv4. You create route-target import lists and route-target export lists for each VRF.
What is VRF forwarding Cisco?
Virtual routing and forwarding (VRF) is an IP-based computer network technology that enables the simultaneous co-existence of multiple virtual routers (VRs) as instances or virtual router instances (VRIs) within the same router.
How do I install a VRF file?
VRF configuration is easy and consists of 2 simple steps, as explained below:
- Creating the VRF instance. The first thing to do is creating the VRF instance.
- Assigning VRF to an interface. After creating the VRF, the next step is assigning the VRF to an interface, or in this example is a sub-interface.
How do you leak a VRF route?
Inter-VRF local route leaking allows the leaking of routes from one VRF (the source VRF) to another VRF (the destination VRF) on the same router. Inter-VRF routes can exist in any VRF (including the default VRF) on the system. Routes can be leaked using the following methods: Inter-VRF Local Route Leaking using BGP VPN.
What is the difference between VRF definition and IP VRF?
Ip vrf and vrf defination are both used to create vrf but with a slight difference. ip vrf is used to create vrf only for ipv4 address family whereas vrf defination can be used to create vrf for both ipv4 as well as ipv6 routes.
What is the difference between RD and RT in VRF?
The Route-Distinguisher (RD) & Route-Target (RT) are two different concepts that are both used in an MPLS VPN. The RD is used to keep all prefixes in the BGP table unique, and the RT is used to transfer routes between VRF’s/VPNS.
Why do we need Rd and Rt?
Is it possible to export a route from another VRFs?
I think its not possible because by the command route-target export you are only exporting the routes which are locally originated. Not the one whicha re imported from other vrfs.
How many views does a MPLS export map on a VRF?
Customer Connection Webex Events Members & Recognition Cisco Community Technology and Support Service Providers MPLS export map on a vrf 2068 Views 0 Helpful 7 Replies balavenkata Beginner Mark as New Bookmark Subscribe Mute Subscribe to RSS Feed Permalink Print Email to a Friend Report Inappropriate Content 01-30-200704:09 PM
How to move routes between the global and VRF tables?
With IOS, in order to move routes between the global and vrf tables, you need to invoke the import [ipv6|ipv4] unicast command. There is another import map command under the vrf, but that command does NOT move routes between the vrf and global.
Can I have 2 VRFs on a single router?
On a single router, I have two VRFs (vrf JLAN & vrf JGLOBE), my goal is to be able to leak both VRFs so that JLAN can access 10.254.0.0/24 routes and JGLOBE can access 10.6.40.0/24 routes. I’ve been able to filter out the subnets I want for both VRFs and I can see all routes I’m filtering on my BGP table for both VRF RTs.