1 / 7

BGP Connector Attribute

BGP Connector Attribute. IETF 64 Nov 2005. Tunneling applications in BGP. Various Tunneling applications exist or are being proposed in BGP Some examples are : The MDT SAFI used for Auto-discovery of MDTs for PIM LAN procedures in Multicast VPNs The Tunnel SAFI for Tunnel discovery.

fedora
Download Presentation

BGP Connector Attribute

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. BGP Connector Attribute IETF 64 Nov 2005

  2. Tunneling applications in BGP • Various Tunneling applications exist or are being proposed in BGP • Some examples are : • The MDT SAFI used for Auto-discovery of MDTs for PIM LAN procedures in Multicast VPNs • The Tunnel SAFI for Tunnel discovery

  3. MDT discovery in PIM-LAN procedures for MVPNs • The MDT SAFI carries • the Tunnel endpoint address in the NLRI of the form RD:Tunnel-address, MDT-group address • Needs an RPF check on the Tunnel-endpoint-address • The VPNv4 update carries • the VPNv4 NLRI of the form RD: IP-address • a BGP Connector attribute of the form Tunnel-address • The BGP Connector attribute for the VPNv4 NLRI links the NLRI carried by the MDT SAFI

  4. Tunnel Endpoint discovery • The Tunnel SAFI carries • the Tunnel endpoint address in the NLRI of the form Tunnel-ID:Tunnel-address • a BGP Tunnel Encapsulation attribute which contains encapsulations and preferences. • The VPNv4 update carries • the VPNv4 NLRI of the form RD: IP-address • a BGP Connector attribute of the form Tunnel-ID:Tunnel-address • The BGP Connector attribute for the VPNv4 NLRI links the Tunnel SAFI NLRI

  5. CE-2 CE-1 CE-2 Host = 1.1.1.1 Host = 2.2.2.2 Tunnel Discovery VPNv4 update RD2:1.1.1 NHOP = PE1 Connector = TunID2:PE1 PE-2 VPNv4 update RD1:1.1.1.1 NHOP = PE1 Connector = TunID1:PE1 PE-1 PE-3 VPNv4 update RD1:1.1.1 NHOP = PE1 Connector = TunID2:PE1 VPNv4 update RD1:1.1.1.1 NHOP = PE1 Connector = TunID1:PE1 CE-3

  6. CE-1 Host = 1.1.1.1 Tunnel Discovery (contd.) VPNv4 update RD1:1.1.1.1 NHOP = PE1 Connector = TunID1:PE1 VPNv4 update RD1:1.1.1.1 NHOP = ASBR-1 Connector = TunID1:PE1 PE-1 PE-2 ASBR-1 ASBR-2 VPNv4 update RD1:1.1.1.1 NHOP = ASBR-1 Connector = TunID1:PE1 CE-3

  7. Summary • The Connector attribute is used for carrying the address of a Tunnel endpoint or an originator in a given network. • Already has 3 applications. • Could have more.

More Related