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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 * Example of routing beteen vrf-light using BTP http://packetlife.net/blog/2010/mar/29/inter-vrf-routing-vrf-lite/ * 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.]] ... ---- CategoryCisco |
VRF
- Visualizing a router. This is not about MPLS, although that is where the VRF concept comes from.
Example of routing beteen vrf-light using BTP http://packetlife.net/blog/2010/mar/29/inter-vrf-routing-vrf-lite/
- 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
...