What is BGP address-family?

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 Cisco address-family?

The Cisco OSPFv3 Address Families feature implements RFC 5838 and enables the ability to concurrently route IPv4 and IPv6 prefixes. The Cisco OSPFv3 Address Families feature is turned on in conjunction with the OSPFv3 MANET feature, which supports routing of IPv4 and IPv6 addresses and prefixes in mobile environments.

What are address families?

An address family identifier is used to identify individual network address schemes or numbering plans for network communication in contexts where the use of individual addresses might otherwise be ambiguous. Address family identifiers were first defined in RFC 2453.

Why do we use address-family?

Address family protocols provide the network transportation of application data from one application to another (or from one process to another within the same system). The application specifies the network transport provider on the protocol parameter of the socket.

What is MP-BGP Cisco?

MP-BGP supports IPv4 unicast, IPv4 multicast, IPv6 unicast, IPv6 multicast and VPN routes. For each of those, it has an address family. By default only the IPv4 unicast address family is activated, the rest is inactive. In the first example I disabled IPv4 unicast since we were only going to do IPv6 unicast.

What does address-family IPv4 do?

Multicast IPv4—If you specify the multicast IPv4 address family, you can use BGP to exchange routing information about how to reach a multicast source instead of a unicast destination. For information about BGP multicasting commands, see Unresolved xref.

What is BGP configuration?

BGP router configuration requires the following components: BGP Session Parameters: BGP session parameters provide settings that involve establishing communication to the remote BGP neighbor. Session settings include the ASN of the BGP peer, authentication, and keepalive timers.

What is a socket family?

Socket types define the communication properties visible to a user. The Internet family sockets provide access to the TCP/IP transport protocols. The Internet family is identified by the value AF_INET6, for sockets that can communicate over both IPv6 and IPv4.

What is the difference between MP BGP and BGP?

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?

What is MP-BGP EVPN?

EVPN is an extension to Border Gateway Protocol (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 MP BGP Cisco?

What is BGP in Cisco router?

Border Gateway Protocol (BGP) is an interdomain routing protocol designed to provide loop-free routing between separate routing domains that contain independent routing policies (autonomous systems).

What is difference between MP-BGP and BGP?

Does MP-BGP need 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 the difference between Af_inet and Pf_inet?

Meaning, AF_INET refers to addresses from the internet, IP addresses specifically. PF_INET refers to anything in the protocol, usually sockets/ports.

Which type of addresses are supported by BGP?

Whereas standard BGP supports only IPv4 unicast addresses, Multiprotocol BGP supports IPv4 and IPv6 addresses and it supports unicast and multicast variants of each.