Such a PE is elected among all PEs on the same Ethernet segment (ES) through DF election.Īn IP prefix route allows an EVPN to access the external network. To prevent a CE multi-homed to multiple PEs from receiving duplicate traffic, only one PE is required to forward BUM traffic to the CE. This route is mainly used for designated forwarder (DF) election. Such a route also contains tunnel attributes that enable PEs to establish a tunnel between them for transmitting data plane traffic.Īn Ethernet segment route allows PEs connected to the same CE to discover each other. This enables the local PE to send BUM traffic received from CEs to the remote PE. This eliminates the need to flood ARP requests on the network, thereby reducing the broadcast traffic volume on the network and saving bandwidth resources.Īn inclusive multicast route advertises the address reachability of broadcast, unknown unicast, and multicast (BUM) traffic to implement mutual neighbor discovery in a broadcast domain. This route is mainly used in fast convergence, redundancy protection, aliasing, and split horizon scenarios to implement load balancing on a multi-homing network.Īn EVPN MAC/IP route advertises the MAC address, IP address, and other information of sites. Based on MP-BGP, EVPN defines a series of new BGP EVPN route types that enable different sites to learn MAC addresses from each other.īGP EVPN routes are classified into the following types:Īn Ethernet auto-discovery route advertises the reachability of the local PE to the MAC addresses of its connected sites. It subverts the traditional L2VPN's mechanism of learning MAC addresses on the forwarding plane, introduces the control plane, and uses BGP extensions to transmit MAC address information. EVPN is a next-generation full-service bearer VPN solution.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |