Q/CT 2360-2011 English PDF (QCT2360-2011)

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Q/CT 2360-2011: China Telecom GPON equipment technical requirements [V2.0]
Q/CT 2360-2011
Confidential Level. public release
Technical Standard
of China Telecommunications Corporation
Technical requirements for GPON equipment of
China Telecom
(V2.0)
Issued in. April, 2011 Implemented in. April, 2011
Issued by. China Telecommunications Corporation
Table of Contents
Foreword ... 6 
1 Scope ... 7 
2 Normative references ... 7 
3 Abbreviations ... 10 
4 Reference model of GPON system ... 13 
5 Types of service and equipment ... 14 
5.1 Type of service ... 14 
5.2 Type of equipment ... 14 
6 GPON protocol requirements ... 19 
6.1 Protocol reference model of the GPON system ... 19 
6.2 PMD sublayer ... 19 
6.3 TC sublayers ... 20 
6.4 OMCI sublayers ... 21 
7 Requirements for SNIs and UNIs ... 29 
8 Ethernet functional requirements ... 31 
8.1 Ethernet basic functions ... 31 
8.2 VLAN functions ... 34 
8.3 VLAN stacking function ... 41 
9 Dynamic bandwidth allocation (DBA) ... 41 
9.1 DBA general requirements ... 41 
9.2 DBA functional requirements of OLT ... 42 
9.3 DBA functional requirements of ONU ... 42 
10 Multi-service QoS mechanism ... 43 
10.1 General requirements for the multi-service QoS ... 43 
10.2 Service level agreement (SLA) ... 43 
10.3 Functions of service traffic classification ... 43 
10.4 Priority marking ... 44 
10.5 Priority queuing mechanism ... 45 
10.6 Traffic speed limit ... 45 
11 Security ... 48 
11.1 Data security of PON interfaces... 48 
11.2 Restriction on MAC address number ... 48 
11.3 Filtering and suppression ... 48 
11.4 User authentication and subscriber access loop (port) identification ... 49 
11.5 ONU authentication ... 49 
11.6 Silence mechanism ... 56 
11.7 Detection and treatment of the ONU with abnormal light emission ... 56 
11.8 Other safety functions ... 56 
12 Multicast function ... 57 
12.1 Multicast implementation modes ... 57 
12.2 Multicast mechanism and protocol requirements ... 57 
12.3 Functional requirements for the distributed IGMP/MLD mode... 58 
12.4 Functional requirements for the controllable multicast ... 62 
12.5 Multicast performance requirements ... 66 
13 System protection ... 66 
13.1 1 + 1 redundancy protection for the equipment main control panel ... 66 
13.2 Dual homing protection of OLT upstream interface ... 67 
13.3 Configuration recovery ... 68 
13.4 Power redundancy protection ... 68 
13.5 Optical link protection switching ... 68 
14 Optical link measurement and diagnosis ... 75 
14.1 General requirements ... 75 
14.2 Parameter measurement of the OLT optical transceiver ... 75 
14.3 Parameter measurement of the ONU optical transceiver ... 76 
15 ONU software upgrading ... 77 
16 Alarm functional requirements ... 78 
17 Functional requirements for performance statistics ... 78 
18 Voice service requirements ... 80 
19 TDM service requirements ... 81 
20 Time synchronization ... 82 
21 Requirements for the service bearing performance indexes ... 82 
21.1 Requirements for the Ethernet/IP service performance indexes ... 82 
21.2 Requirements for the voice service performance indexes ... 83 
21.3 Performance indexes of n × 64Kbit/s digital connection and E1 channel in
circuit emulation mode ... 84 
21.4 Requirements for the clock and time synchronization performance
indexes ... 85 
21.5 Reliability requirements ... 86 
22 Requirements for the operation management and maintenance ... 86 
21.1 General requirements ... 86 
21.2 ONU remote management ... 86 
22.3 Requirements for the ONU local management ... 87 
23 ONU hardware requirements ... 89 
23.1 Indicator requirements ... 89 
23.2 Switches and buttons ... 90 
23.3 Dying gasp and power-off protection time ... 90 
23.4 Equipment tags ... 90 
24 Other requirements ... 91 
24.1 Environmental requirements ... 91 
24.2 Power supply requirements ... 91 
24.3 Equipment energy-saving requirements ... 92 
24.4 Electrical safety requirements ... 93 
Appendix A ... 95 
A.1 Requirements for the SFU power supply ... 95 
A.2 MDU power supply requirements ... 100 
Appendix B ... 102 
B.1 Definition of extended multicast operations profiles ... 102 
B.2 EMOP application examples ...