 |
[802 Architecture Group] . [Audio/Video Bridging Task Group] . [Data Center Bridging Task Group] [Email] . [Ancient Email] . [Meetings] . [802.1 MIBs] . [802.1 OIDs] . [802.1 Interpretations] . [IEEE 802] . [IEEE 802 PARs] [802] . [802-REV] . [802a] . [802b] . [802.1D] . [802.1D-2004] . [802.1G] . [802.1H-REV] . [802.1Q] . [802.1Q-REV] . [802.1s] . [802.1v] . [802.1w] . [802.1AB] . [802.1AB-REV] . [802.1AC] . [802.1ad] . [802.1ag] . [802.1ah] . [802.1aj] . [802.1ak] . [802.1ap] . [802.1aq] . [802.1Qaw] . [802.1Qay] Security: [802.1X-2001] . [802.1X-2004] . [802.1X-REV] . [802.1AE] . [802.1af] . [802.1AR] AVB: [802.1AS] . [802.1Qat] . [802.1Qav] . [802.1BA] . DCB: [802.1Qau] . [802.1Qaz] . [802.1Qbb] |
 |
802.1aj - Two-port MAC Relay
The full title of this PAR is "Standard for Local and Metropolitan Area Networks - Virtual Bridged Local Area Networks - Amendment 08: Two-port Media Access Control (MAC) Relay".
This standard specifies the function of a MAC Relay with two MACs, and the protocols and procedures to support its operation. A MAC Relay is transparent to all frame-based media independent protocols except those explicitly addressed to this device. It is remotely manageable through at least one of its external MACs, and signals a failure of either MAC's LAN through the other MAC.
The wide and growing deployment of Ethernet Provider Services has created a demand for simple two-port demarcation devices that connect two 802 media or 802 media emulations. The lack of standards for such devices, and particularly for link-loss signalling and remote diagnosis, is impeding the growth of this industry. This standard will greatly improve this situation.
Public networks represent a new and very broad application space for IEEE 802 technologies and specifically for Provider Bridges (P802.1ad) and Ethernet in the First Mile (802.3ah). Numerous vendors and potential users (the Service Providers) have expressed the need to integrate Ethernet link technologies with their existing infrastructure at a low cost, while providing the manageability and remote diagnostic capabilities traditionally offered by circuit switched technologies.
| Status | PAR approved, Working Group ballot |
| Document | Draft 3.1 |
| Dispositions | Draft 2.2 Comment Dispositions |
| Editor | John Messenger |
Pages copyright © Institute of Electrical and Electronics Engineers, Inc. Please read the rules on Confidentiality Statements and Copyright Notices on Communications. If you have any comments on these pages, please send them to me.
