Provider Backbone Bridges (PBB; known as “mac-in-mac”) is a set of architecture and protocols for routing over a provider’s network allowing interconnection of multiple Provider Bridge Networks without losing each customer’s individually defined VLANs.
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 PBT in networking?
Provider Backbone Transport (PBT) is a new, rapidly evolving, and highly controversial development in Ethernet technology. Although some use it as a generic term, PBT (Provider Backbone Transport) is strictly an informal moniker introduced by Nortel Networks Ltd.
What is MAC encapsulation Mac?
MAC-in-MAC frame encapsulation It is the MAC address of the BEB device at the destination end of the PBBN tunnel. Outer VLAN tag in a MAC-in-MAC frame. It indicates the VLAN information and priority information of the frame within the PBBN. The Tag Protocol Identifier (TPID) in the B-tag is 0x8100.
What does the IEEE 802.1 AG standard define?
IEEE 802.1ag (also CFM) (IEEE Standard for Local and Metropolitan Area Networks Virtual Bridged Local Area Networks Amendment 5: Connectivity Fault Management) is a standard defined by IEEE. Defines the relationship between maintenance domains and the services offered by VLAN-aware bridges and provider bridges.
What are OAM packets?
Ethernet OAM injects OAM packets into the normal stream of data packets at layer 2, and uses end points to process those packets to determine performance, with parameters such as improperly configured nodes, unidentified and out-of-place nodes, disconnected or failed nodes, frame loss, frame delay, end-to-end path …
What is maintenance domain?
1731 and MEF 35. The Metro Ethernet Forum has defined additional service OAM requirements, namely MEF 17. DEFINITIONS. Maintenance domain (MD): The portion of a network typically owned and operated by a single entity, over which connectivity faults can be managed.
What is e OAM?
Ethernet OAM is one part of the capability needed to meet these SLAs. WHAT IS ETHERNET OAM? OAM is a set of functions that provides system or network fault indication, performance monitoring, security management, diagnostic functions, configuration and user provisioning.
