What is BGP address family?
The TNSR BGP implementation is capable of handling routing information for IPv4 and IPv6 independently, among other network layer protocols. The address-family command defines BGP behavior for each specific supported case.
What is MP-BGP used for?
Multiprotocol BGP (MP-BGP) is an extension to BGP that enables BGP to carry routing information for multiple network layers and address families. MP-BGP can carry the unicast routes used for multicast routing separately from the routes used for unicast IP forwarding.
What is difference between BGP and MP-BGP?
MP-BGP (Multiprotocol BGP) is an extension of the BGP protocol. Standard BGP only supports IPv4 unicast address families, whereas MP-BGP supports more than 15 different BGP address families.
Why MP-BGP is used in MPLS?
MP-BGP is used for distributing customer prefixes within the provider’s network. Customer’s data is switched in the service provider’s Multiprotocol Label Switching (MPLS) network based on labels.
What is MP BGP Cisco?
Multiprotocol BGP (MP-BGP) peering of VPN community provider edge (PE) devices—MP-BGP propagates virtual routing and forwarding (VRF) reachability information to all members of a VPN community. MP-BGP peering must be configured on all PE devices within a VPN community.
What is BGP address?
BGP uses IPv4 and IPv6 address families. There is a neighbour relationship configured in each address family. The interfaces use IPv4 and IPv6 addresses. Once done, the routers will be able to ping each other with IPv4 and IPv6.
What does MP-BGP EVPN advertise?
EVPN is an extension to BGP that allows the network to carry endpoint reachability information such as Layer 2 MAC addresses and Layer 3 IP addresses. This control plane technology uses MP-BGP for MAC and IP address endpoint distribution, where MAC addresses are treated as routes.
What is AFI BGP?
AFI means Address Family Indicator and SAFI is the Subsequent Address Family Indicator. They are used in the Multiprotocol Extensions to BGP and are exchanged during neighbor capability exchange during the process for loading the peers.
Does MP-BGP require MPLS?
MP-iBGP is required within the MPLS/VPN architecture because the BGP update needs to carry more information than just an IPv4 address. You have seen already that an MP-iBGP update contains a VPN-IPv4 address, MPLS label information, extended BGP communities, and possibly standard BGP communities.
What is RT and RD in MPLS?
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.
What is the use of VRF?
Virtual routing and forwarding (VRF) IP technology allows users to configure multiple routing table instances to simultaneously co-exist within the same router. Overlapping IP addresses can be used without conflicting because the multiple routing instances are independent, and can select different outgoing interfaces.
What is MP-BGP MPLS?
MP-BGP (Multi Protocol) BGP is an extension to BGP which allows BGP to advertise different types of addresses besides IPv4 unicast. MP-BGP supports IPv4 and IPv6 unicast, IPv4 and IPv6 multicast and also VPN labels that are used in MPLS-VPN.