HUAWEI OptiX OSN7500II SDH

Brief Introduction

 

 

To meet the growing demands of Metropolitan Area Networks (MANs), Huawei has developed the OptiX OSN 7500 II — next-generation Optical Core Switches (OCS). Primarily used as service scheduling nodes at the metropolitan backbone layer, the OptiX OSN 7500 II incorporates an intelligent optical transmission platform and core optical transmission system to schedule and transmit services of different types and granularities. Leveraging "universal switching" architecture, the OptiX OSN 7500 II can be used in packet or Time Division Multiplexing (TDM) mode. Combined with other Huawei equipment, the OptiX OSN 7500 II supports various networking applications, such as pure packet domain, hybrid networking (packet and TDM domain overlay networking), and pure TDM domain. An effective networking solution can optimize both data and conventional Synchronous Digital Hierarchy (SDH) service processing.

 

Specification

 OptiX OSN 7500 II Product Specifications

System Features

Subrack dimensions

800 mm (H) x 496 mm (W) x 295 mm (D)

Switching capacity

Packet: 320 Gbit/s and TDM: 360 Gbit/s (higher order), 40 Gbit/s (lower order)

Service slots

16 slots for processing boards and 16 slots for interface boards

Highly reliable design

1+1 hot backup for power supply modules, system control boards, cross-connect and synchronous timing boards
Redundancy protection for fan modules

Supported interfaces

40G interfaces

OTU3/40GE, compliant with OTL3.4 standard

Packet transport interfaces

E1, ch STM-1, ATM STM-1, FE/GE/10GE

MSTP interfaces

STM-1/4/16/64, E1/E3/E4/T1/T3, FE/GE/10GE, FEC/EFEC interface

WDM interfaces

40-channel DWDM interfaces, compliant with ITU-T G.694.1
8-channel CWDM interfaces, compliant with ITU-T G.694.2

Networking Mode

Supports pure packethybrid (packet + SDH) or SDH networking Supports WDM networking
Supports single-fiber bidirectional transmission

Power Supply

-38.4~ -72V DC

Operation Environment

Temperature Relative Humidity
Long term: 0°C ~ 45°C 10% ~ 90%
Short term: -5°C ~ 55°C 5% ~ 95%

Packet Transport Features

Service features

E-Line and E-LAN
QinQ
MPLS-TP based VPWS and VPLS
Multi-section pseudo-wire (MS-PW)
TDM PWE3: CESoPSN and SAToP, compression of idle timeslots
ATM/IMA PWE3
ETH PWE3
IGMP SNOOPING V2
Blacklist, Broadcast packet suppression, ACL
VLAN SWAP

QoS features

Hierarchical QoS scheduling and traffic shaping
DiffServ mode based on traffic classification 
Simple traffic classification, complex traffic classification, per hop behavior (PHB), and ACL
Committed access rate (CAR)
PQ scheduling priority, weighted fair queuing (WFQ) and PQ+WFQ queuing
Tail drop and weighted random early detection (WRED)
Eight priority queues
Shaping based on port scheduling priority

Hardware-based OAM

MPLS OAM

LSP/PW OAM:
FDI, BDI
CV, FFD, TraceRoute, Ping
CES PW VCCV
LM, DM

MPLS-TP OAM

LSP/PW OAM:
CC, LB, LT
AIS, RDI
LM, DM 
LCK, TST
CSF

Section OAM:
CC, LB
RDI
LM, DM
LCK, TST

Ethernet OAM

ETH-CC(Continuity Check)ETH-LoopbackETH-Link Trace
Remote Loopback
Remote Fault Detection

ATM OAM
RMON(RFC 2819)
Flexible design with multiple protocols

Carrier-class protection

LSP/PW Linear protection
MPLS-TP Ring protection
Anti multifailure protection based on MS-PW
Link aggregation group (LAG) protection
Multi-chassis link aggregation group (MC-LAG) protection
Dual-homing protection
LPT
STP/RSTP/MSTP
IMA protection
1+1 and 1:1 Linear MSP

Clock synchronization

Two external clock inputs/outputs (2 MHz or 2 Mbit/s)
Two external time signals
1pps+TOD

Adaptive clock recovery (ACR)
Synchronous Ethernet
IEEE 1588v2

MSTP Features

Carrier-class protection

Mesh Protection and restorationASON
Distributed restorable rerouting protection
5-level service dedicated protection scheme based on different SLA: Diamond, Gold, Silver, Copper and Iron services
SDH Network Protection
2/4 fiber MS-SP Ring; 1+1, 1:n (n<=14) Linear MSP; SNCP/SNCTP; Fiber shared virtual path protection; Fiber shared MS-SP Ring; DNI (ITU-T G.842) Service Protection Ethernet: RPR, ERPS, RSTP, LAG/DLAG/PPS/BPS Electrical Interface Protection
1:N tributary protection for E1/T1, E3/T3, E4, STM-1(e) and FE

Multi-service Transport Features

Ethernet Over SDH
GFP/LAPS/VCAT/LCAS
L2 switch, 64 aggregation directions for powerful Ethernet convergence
Mapping granularity, VC-12-nv/VC-3-nv, and VC-4-nv
Point to Point LPT, Point to Multi-point LPT
MPLS and Stackable VLAN for L2 VPN 
4/8-level CoS, CAR based on 64K granularity
IEEE 802.3ah, 802.1ag

Clock synchronization

Two external clock inputs/outputs (2 MHz or 2 Mbit/s)
Line clock source
Tributary clock source

 

Features

 

 

Multiservice Universal Switch and Smart Transport

  • Smart transport based on universal switch and smart line card for all types of services in any possible mix, including Ethernet, ATM, TDM, and future services.

  • Universal switch at any level of packet and TDM in their original format, high efficiency and best performance, ‘0’ waste of bandwidth.

  • Smart line card for packet and TDM multiservice universal transport in one port, carefree evolution among different types of services, ‘0’ waste of investment.

 

PID inside for Tailored Metro Ultra Broadband Transport

  • Integrating OTU, MUX and DEMUX boards by a PID chip, providing 40G/100G capacity per port and larger in future.

  • SDH-like OAM without complicated photonic layer design such as wavelength planning and OSNR calculating, with fewer patch cords and fiber operations, greatly reducing time to market.

  • 50% footprint saving and 40% power consumption reduction.

 

Soft Pipe & Hard Pipe for Highly Reliable and Efficient Transport

  • SDH hard pipe for TDM services with high quality and low delay to ensure reliable transmission for production and dispatching services and private services

  • MPLS-TP based soft pipe supports packet statistical multiplexing to provide highly efficient transmission for large bandwidth packet services

  • Universal switch based soft and hard pipes consider both legacy TDM service and future-oriented IP service to achieve smooth evolution for transmission network

 

TP-Assist for Easy OAM

  • MPLS-TP based OAM solution “TP-Assist” provides efficient planning, fast deployment and easy maintenance, making the large-scale packet network easily manageable

  • Traffic based crystal clear OAM is supported with visual network-level view, graphical format to display end-to-end service configuration, performance and status.

  • Better maintenance experience even than SDH: visualized end-to-end bandwidth management, intelligent location of 92% failures, analyzable and predicable network management.

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