What is PBB in networking?
What is PBB in networking?
1ah), also known as Provider Backbone Bridges (PBB), defines an architecture and bridge protocols for interconnection of multiple Provider Bridge Networks (PBNs – IEEE802. 1ad QinQ networks). PBB is defined in IEEE as a connectionless technology based on multipoint VLAN tunnels.
What is backbone edge bridge?
The backbone edge bridges map frames to and from an I-SID and perform the MAC header encapsulation and decapsulation functions. The core bridges act as transit nodes. The packets are forwarded based on outer VLAN ID (B-VID) and Destination MAC address (B-DA).
What is PBB EVPN?
PBB-EVPN Networking PBB-EVPN is an L2VPN technology implemented based on MPLS and Ethernet technologies. PBB-EVPN uses BGP to exchange MAC address information between PEs on the control plane and controls the exchange of data packets among different sites across the MPLS network.
Why do we need EVPN?
Benefits of EVPN-VXLAN Programmability allows you to easily automate. Its open standards-based architecture ensures backwards and forwards interoperability. Integrated and efficient Layer 2 and Layer 3 connectivity with control plane-based learning. Easy network scalability that’s based on business needs.
What is the difference between VPLS and EVPN?
EVPN is similar to VPLS in the data plane—for example, both implement MAC learning to establish reachability between various Layer 2 devices. A key difference is that EVPN uses the control plane rather than the data plane to communicate MAC and IP address reachability between PEs.
What is the difference between VXLAN and EVPN?
EVPN-VXLAN provides the scale required by cloud service providers and is often the preferred technology for data center interconnections. EVPN, as an overlay, supports multi-tenancy and is highly extensible, often using resources from different data centers to deliver a single service.
What is difference between VPN and EVPN?
EVPN is a next-generation full-service bearer VPN solution. It unifies the control planes for various VPN services and uses BGP extensions to transmit Layer 2 or Layer 3 reachability information, separating the forwarding plane from the control plane.
Where is EVPN used?
The EVPN is used as a Layer 2 overlay solution to provide Layer 2 connection over an IP underlay for the endpoints within a virtual network whenever Layer 2 connectivity is required by an end station such as bare-metal server (BMS).
