The Alcatel-Lucent 7705 SAR utilizes extensive traffic management policies to ensure fairness with detailed classification and hierarchical schedul- ing including minimum/maximum, profiled, round robin and strict priority scheduling and multi-tier policing to differentiate and prioritize individual services and flows.

Operations, administration and maintenance

In order to ensure continuity of services, the Alcatel-Lucent 7705 SAR has a full set of operations, adminis­ tration and maintenance (OAM) features including:

•LSP ping

•LSP traceroute

•Service distribution path (SDP) ping

¬Verifies, for example, tunnel connectivity and round trip delay

•Virtual circuit connectivity verification (VCCV)

¬Verifies, for example, service level existence and round trip time

¬Extends OAM to pseudowire services

•Service Assurance Agent (SAA)

¬Runs in background, periodically collecting network “health” infor- mation from OAM mechanisms­ such as VCCV and monitoring­ for prob- lems such as SLA transgressions.

These features, when under the control of the Alcatel-Lucent 5620 management portfolio, ensure rapid fault detection as well as efficient troubleshooting. In particular, SLAs can be monitored, and transgressions detected and reported via the SAA.

Synchronization

Cell sites rely on the backhaul network to provide synchronous interfaces for the proper delivery of data. In addition, cell sites may rely on the network interfaces as stable references with which to derive radio frequencies (RFs) and in order to ensure reliable subscriber handover between cell towers.

The Alcatel-Lucent 7705 SAR supports external reference timing, line timing and adaptive timing in Release 1.0.

The adaptive timing is fully capable of offering end-to-end synchronization. In addition, the Alcatel-Lucent 7705 SAR is completely hardware-ready to support IEEE1588v2. This IEEE standard defines a method to minimize the effects of delay and delay variation (jitter). This is accomplished by a combi­ nation of built-in architectural features and also powerful QoS mechanisms to minimize the delay experienced by synchronization traffic. This is a corner­ stone of the design of the Alcatel-Lucent 7705 SAR. A built-in Stratum-3 clock is available in the control and switch module to assist in synchronization­ maintenance.

Features

•Cost-effective migration from E1/

T1-based backhaul to packet-based transport, leveraging Ethernet ser- vices over a wide range of first mile media.

•Resiliency and redundancy including: one-for-one hitless control and switch module failover, synchronization re- dundancy, network uplink resiliency and redundancy of power feeds.

•Powerful, service-aware OAM capabilities complemented by the Alcatel-Lucent 5620 management portfolio for GUI-based network and element configuration, pro- visioning, fault and performance management.

•Dense adaptation of multiple con- verged services onto an economical packet infrastructure.

•Extends service routing IP/MPLS capabilities to the cell site, hubs and network edge in a compact form factor.

•Dynamic tunnel signaling for scaling, ease of establishment and resiliency.

Benefits

•Transition from PDH-based connectivity­ to Ethernet-based can greatly reduce recurring operating expenditures such as line lease costs.

•Advanced resiliency features lead to improved network uptime, which can positively impact customer retention and allow critical services to be offered for increased revenue.

•Rapid fault detection and powerful commissioning and troubleshooting tools can improve productivity of operations staff and reduce network downtime.

•Multiprotocol and convergence capabilities (with flexible and granular QoS) reduce equipment instances needed to carry multiple fixed and mobile traffic streams.

•Modular, flexible architecture alleviates the burden of complex pre-engineering and future scenario planning.

Alcatel-Lucent 7705 SAR Data Sheet

3

Page 2 Page 4
Page 3
Image 3
Alcatel-Lucent 7705 SAR manual Features, Benefits, Operations, administration and maintenance, Synchronization
Page 2 Page 4

7705 SAR specifications

The Alcatel-Lucent 7705 Service Aggregation Router (SAR) is a robust network device designed to address the demands of modern service providers, enterprises, and data centers. As a part of Nokia's Alcatel-Lucent portfolio, the 7705 SAR offers a versatile and efficient solution for service aggregation in both fixed and mobile environments.

One of the standout features of the 7705 SAR is its flexibility. It is designed to support a multitude of applications including IP/MPLS, Ethernet services, and IP routing. This adaptability makes it an ideal choice for various deployment scenarios, including backhaul for mobile networks, aggregation for fixed network services, and even transport for cloud-based solutions.

In terms of capacity and performance, the 7705 SAR is equipped with high-density interfaces, capable of handling a range of speeds from 10 Mbps to 100 Gbps. This scalability ensures that service providers can easily accommodate growing bandwidth demands while maintaining high levels of service quality.

The 7705 SAR supports a comprehensive set of technologies that enhance its functionality. For instance, it is designed to work seamlessly with MPLS (Multiprotocol Label Switching) to optimize traffic flows and ensure efficient use of network resources. Furthermore, the SAR’s support for virtual private networks (VPN) allows for secure data transport over shared networks, making it beneficial for enterprises looking to safeguard sensitive information.

Quality of Service (QoS) capabilities is another noteworthy characteristic of the 7705 SAR, providing operators the ability to prioritize different types of traffic. This is crucial for maintaining service quality, especially in environments with mixed traffic including voice, video, and data.

The router also boasts advanced network management features, enabling operators to monitor network performance, diagnose issues, and implement policy changes swiftly. Its support for automation enhances operational efficiency, which is increasingly vital in today's fast-paced digital landscape.

Additionally, the device supports a wide range of network protocols and standards, ensuring compatibility and interoperability with existing infrastructure. Its compact design and power efficiency further enable cost-effective deployment in diverse environments.

Overall, the Alcatel-Lucent 7705 SAR stands out as a state-of-the-art service aggregation solution that empowers network operators to deliver high-quality services efficiently and effectively. Its combination of flexibility, performance, and comprehensive feature set makes it a valuable asset in the ever-evolving telecommunications landscape.
Top Page Image Contents