ZTE ZXCTN 6150 ZTE ZXCTN6150 Multiple Packet Transport Platform ZTE PTN 6150

Overview

Because of the demand of the bandwidth growth of 3G/LTE services and the reduction of TCO, bearer networks are required to provide multiple flexible functions with low cost. ZXCTN 6200 is one of the best options to build a high efficient and power saving wireless bearer network, and benefit telecom operators in market extension & service innovation.

ZXCTN 6200 supports Layer 2 and Layer 3 network or service interworking reliably and concurrently. It provides service providers a graceful migration path to a converged packet transport network based on MPLS/MPLS-TP. It enables connection-oriented characteristics of the traditional transport network such as SDH-like OAM, perfect protection mechanisms and powerful management, while maintaining the superior statistical multiplexing and flexible deployment of pure IP networks.

The ZXCTN 6200 provides a wide range of interfaces with unmatched service flexibility. It enables service providers the ability to deliver mobile backhaul services, business-class IP and carrier Ethernet services, Asynchronous Transfer Mode (ATM) and Time Division Multiplexing (TDM) private leased line services at speeds from E1 to STM-4 and Ethernet services from 10 Mbps to 10 Gbps. The ZXCTN 6200 offers a switching capacity of 44 Gbps in a fully redundant, non-blocking shelf.

Features

Any Service, Any Channel, Any Port

The ZXCTN 6200 can support Layer 1 to Layer 3 services on single platform with the flexibility of any service, over any channel and any port with the industry's most comprehensive and flexible multi-service interfaces supporting: IP, MPLS, ATM, GFP, TDM, pseudowire circuits and link aggregation. A variety of line cards are implemented to support packets, cells, TDM circuits, and mixing and matching of Fast and Gigabit Ethernet, optical and electrical, and multi-rate SDH physical line modules.

Carrier-Class Reliability

The ZXCTN 6200 is a fully redundant platform providing carrier-class reliability. It offers a perfect end-to-end protection mechanism for the services transported. At the access side, ZXCTN 6200 supports Link Aggregation Group (LAG), Virtual Router Redundancy Protocol (VRRP), Inverse Multiplexed ATM (IMA) E1 group and Linear Multiplex Segment Protection (LMSP) for the access links with STM-N. As to the network-level protection, the ZXCTN 6200 offers Linear Protection, Ring Protection and FRR. Especially the ZXCTN 6200 provides Dual-homing protection to enhance networks reliability when failures occurred at more than one point. Meanwhile NSF for service forwarding, Graceful Restart for protocols (such as OSPF, BGP, LDP and RSVP and so on) and hot standby redundancy for key components like switching card and power unit are all supported. The ZXCTN 6200 offers best-in-class high availability that is field-proven and time tested in more than a dozen carrier networks worldwide.

New Generation Synchronization Technology

The cost-effectiveness and versatility of packets transport networks are driving the convergence of services. Many services place new timing and synchronization requirements onto the packet network. The ZXCTN 6200 enables carriers to provide SONET/SDH-like Layer 1 timing throughout the network via Synchronous Ethernet. The ZXCTN 6200 also supports IEEE 1588v2 time synchronization over packet transport networks. Meanwhile, the ZXCTN also provides IEEE 1588v2 Packet Timing Protocol to distributed frequency through mixed networks and architect an LTE-ready network where both frequency and phase are required. As to the E1 circuit emulation services, the ZXCTN 6200 performs retiming, adaptive clock recovery and differential clock recovery.

Special level-2 clock switch control cards are provided for ZXCTN 6200, which can support high-precision clock source to support the 3rd network synchronization scenario.

Flexible Interwork Solution Scenario

ZXCTN 6200 supports multiple gateway interworking board including ch.STM-1/4, GFP POS STM-1/4, PPP POS STM-1/4, SDH Gateway STM-1/4, ATM STM-1, GRE etc. It can provide integrated network interworking solution and fully satisfy the requirement of complex network scenarios in access layer, such as interworking with SDH equipments or routers.

Special SDH gateway cards are provided for ZXCTN 6200, which can support OAM, NMS and clock synchronization information exchange between SDH and MPLS-TP networks or between SDH and IP/MPLS networks. As a result, the seamless connection between SDH and packet networks can be achieved.

Carrier-Class OAM

The ZXCTN 6200 supports a rich set of OAM features defined in the latest versions of IEEE, ITU, and IETF standards, including:

• IEEE 802.3ah
• IEEE 802.1ag/Y.1731
• Draft-bhh-mpls-tp-oam-y1731-04
• LSP/PW Ping/Trace, VRF Ping/Trace
• BFD

These capabilities enable the ZXCTN 6200 to monitor the status of system and network links; measure the performance of customer services; confirm the service throughput and quality according to SLAs.

Convenient Network Management

The ZXCTN 6200 can be managed by using ZTE's Unified Management Platform, NetNumen™ U31, which offers Graphical User Interface and provides full functions operation ability including fault management, topology management, performance management, configuration management, security management, log management, maintenance management and various statistics reports. Meanwhile, the ZXCTN 6200 can also be managed and configured through Command Line Interface (CLI), offering diverse management options for different users.

Furthermore, once ZXCTN 6200 is powered on, it can automatically communicate with the remote network management system and can be configured by the remote NMS to achieve the easy featuring commissioning and service deployment. The NetNumen™ U31 supports intelligent tools as follows.

• Automatic service cut-over tool
• Intelligence network expansion tool
• Batch upgrade
• Professional optical power management subsystem

Long-distance Transmission

Usually, the long-distance transmission is utilized by using WDM. But in some scenarios, the distance between two network elements is beyond 80 km and there is no WDM device available in the same site. The ZXCTN 6200 solves this problem by integrating optical amplification (OA) function on the same shelf and the embedded OA board can be used as optical booster amplifier and/or optical preamplifier with different power gains, enhancing the transmission distance to far more than 80 km.

Customer Benefits

Evolutionary Migration of Legacy Networks

The ZXCTN 6200 supports open, standards-based software and hardware to interface with legacy equipment and protocols. Deployed legacy multiservice networks can be integrated with the ZXCTN 6200-based network as part of a non-disruptive migration.

Guaranteed Service Availability

The perfect reliability mechanisms and redundant hardware assures no single point of failure, non-service affecting product upgrades, Layer 2 and Layer 3 protocol GR, in-service network expansion and carrier-class protection and switching to maximize fault tolerance and performance. Carrier-class design provides full redundancy in common equipment and software resiliency features enable maximum service and networks availability.

Investment Protection

While increasing the breadth of the service portfolio, the ZXCTN 6200 extends service providers' investment in legacy network equipment by scaling its capacity as customer demands grow, without forklift upgrades. With significant high port-density and high-speed capabilities, the ZXCTN 6200 accommodates growth in both end-user traffic and services. The switch fabric is highly scalable, providing up to 44 Gbps of non-blocking performance in a 3U-high single chassis.

Capex Reduction

Service providers frequently maintain multiple core service networks based on the individual end-customer services being offered. The ZXCTN 6200 provides a consolidated network infrastructure, collapsing multiple overlay networks to reduce the total number of network elements. Capital expenditures are further reduced with industry-leading technology, density and performance improvement.

Opex Reduction

The ZXCTN 6200 reduces truck rolls, lowers spares inventory and minimizes operational costs for service providers:

l Software-defined E1 card enables one single card to access services of TDM, ATM, MLPPP. Also one single Ethernet card supports both FE and GE/10GE speeds.

In addition, the Graphic network management and E2E service configuration further reduces operational complexity of managing multiple networks or network layers in the service provider network. Reduced operations costs are facilitated to bring greater profits and revenues.

Applications and Services

The ZXCTN 6200 enables service providers to offer the following services on converged network architecture, benefiting from new revenue opportunities while maintaining their legacy investments:

Layer 1/Layer 2 Legacy Services

• Private line service via TDM circuit emulation
• ATM service via ATM circuit emulation

MPLS Layer 2 VPNs

• VPWS
• VPLS and H-VPLS for large-scale multipoint-to-multipoint connectivity

MPLS/BGP Layer 3 VPNs

• High-performance Layer 3 VPNs
• IP VPN using GRE

Wireless Transport

• 3G/LTE migration
• TDM circuit emulation for 2G transport
• FMC

Product Architecture

The ZXCTN 6200 is a centralized switching device, comprising of the Switch, Clock and Control (SCC) cards and multiple line cards.

Switch, Clock and Control Cards

The SCC cards are the central resource of the ZXCTN 6200 for both data-plane switching, and the control & management functionality. The highly scalable, efficient and redundant switch fabric is distributed across the SCC cards. The ZXCTN 6200 supports 1+1 hot-standby redundancy for the SCC units to ensure non-interruption of the services in case the main SCC unit fails. The SCC cards have the following switching and fault tolerant features:

Fully non-blocking switching capacity

• Carrier-class architecture to avoid internal failures
• Scalable low-latency design to achieve up to 44 Gbps in a 3RU-high single chassis

Line Cards

ZXCTN 6200 chassis offers four line card slots that can be used for any card type (except the 10GE card), removing the burden of complex pre-engineering and future scenario planning. The supported card types are: a 4-port channelized STM-1/4 card, a 4-port ATM STM-1 card, a 16-port E1 interface card, 4-port optical&4-port electrical combo Ethernet card, an 8-port optical Ethernet GE card, an 8-port optical Ethernet FE card, an 8-port electrical Ethernet GE cards, an 8-port electrical Ethernet FE card, a 10 GE card, an OA card, a SDH gateway card, a gateway network element card, a GRE function card.

The 4-port ATM STM-1 card supports ATM over SDH with ATM VP/VC switching and circuit emulation processing. The channelized STM-1/4 card supports TDM and ML-PPP with ports configurable for STM-1 or STM-4 operation. All E1 cards support IMA, TDM and multiclass MLPPP. The combo card allows mixing and matching of optical and electrical ports, giving four Ethernet interfaces per slot. The electrical Ethernet card has eight ports of auto-negotiation 10/100/1000 Base-TX ports and the optical Ethernet card has eight ports of supporting 100/1000 Ethernet with small form factor pluggable (SFP). The 10GE card has one port and ZXCTN 6200 can provide two 10GE ports per-rack. The OA card can provide a long-haul transmission solution. The gateway network element card can offer NAT function.SDH gateway card can offer an interworking solution between ZXCTN equipment and existing SDH network.

Combined with the switch fabric, the line cards provide the ZXCTN 6200 the ability to offer integrated and highly efficient data forwarding across multiple services.