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Overview and Amendments for PIRC Architecture in 802.17c Standards

This document details amendments to various clauses of the PIRC (Protected Inter-ring Connection) specification within the 802.17c architecture framework. It provides an overview of the key components including the MAC service model, frame formats, topology discovery, and OAM (Operations, Administration, Maintenance). Critical enhancements include the definition of control frames used by PIRC, load balancing principles, and failure detection protocols. Additionally, it addresses the requirements for spatial awareness and the introduction of specific MIBs for PIRC management, ensuring robust inter-ring communication and reliability.

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Overview and Amendments for PIRC Architecture in 802.17c Standards

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  1. PIRC documentation structureproposalYan WangHuawei technologies 802-17c

  2. Clause 5: Architecture overview • Amend this clause with the following: • Providing overview text introducing PIRC 802-17c

  3. Clause 6: MAC service andreference model • Amend this clause with the following: • Description of the Protected Inter-ring Connection within MAC service model with appropriate description 802-17c

  4. Clause 9: Frame formats • Amend this clause with the following: • Provide new controlType for new control frame used by PIRC 802-17c

  5. Clause 11: Topology discovery and protection • Amend this clause with the following: • Definition of ATTs indicating PIRC station and the type of load balancing • Definition of the transmission of the new ATTs • By ATD? • Only for PIRC nodes? 802-17c

  6. Clause 12: Operations, administration, and maintenance (OAM) • Amend this clause with the following: • New control frame using by PIRC • New control frame format • DA, Protection group ID, Forwarding status, Failure indication, Configuration information, etc. • New control frame operations • Appropriate transmission interval • Only inter-ring nodes process the status message • Notify the status between the two inter-ring station (between peers and mates) • Assistant failure detection 802-17c

  7. Clause 14: Spatially aware sublayer • Amend this clause with the following: • Provide the description that SAS is needed in PIRC nodes 802-17c

  8. Clause 15: Protected Inter-ring Connection • New clause that describes PIRC functionality, methodology • Provide description of rings interconnection through dual-station homing • Basic operations, learning, forwarding, etc. • Principles of protection • Strict and relax loop prevention, Failure detection, Protection switch, Recovery, SDB pruning procedures, multiple failures, etc. • Principles of load balancing • Mandatory (Active/Standby) • Optional (VLAN Hash/Static Assignment by management/etc.) • Service primitive interactions • Provide maintenance commands • Etc. 802-17c

  9. Annex D: SNMP MIB definitions • Amend this clause with the following: • Provide definition of any PIRC specific MIBs. 802-17c

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