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##master-page:HomepageReadWritePageTemplate
##master-date:Unknown-Date
#format wiki
#language en
= VRF =
 * Visualizing a router. This is not about MPLS, although that is where the VRF concept comes from.
 * http://www.shafagh.net/2009/10/vrf-lite.html


 * Once a router has VRF software the interface must be upgraded to support VRF.
   {{{
      (config)#vrf upgrade-cli
   }}}

 * Sample Switch config with bgp and vrf.
{{{
Switch(config)# router bgp 800
Switch(config-router)# address-family ipv4 vrf vl2
Switch(config-router-af)# redistribute ospf 2 match internal
Switch(config-router-af)# neighbor 83.0.0.3 remote-as 100
Switch(config-router-af)# neighbor 83.0.0.3 activate
Switch(config-router-af)# network 8.8.2.0 mask 255.255.255.0
Switch(config-router-af)# exit
}}}

== OSPF problems ==
 * Experienced problems where a router, connected to service provider MPLS using ospf area x, running vrf-lite, and connecting to area 0 on internal network would not show the area 0 routes.
   * Problem was caused by ospf superbackbone rules that kicked in due to putting the ospf instance in a vrf
   * Solution under ospf instance use command #capability vrf-lite
 * [[https://www.racf.bnl.gov/Facility/TechnologyMeeting/Archive/06-30-04-CISCO/Using-OSPF-in-MPLS-VPN-Environment.pdf|Ospf in MPLS VPN environment.]]
...
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It is a little about myself: I live in Germany, my city of Berlin Spandau.
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cisco/VRF (last edited 2015-07-01 11:49:30 by PieterSmit)