User manual ALCATEL-LUCENT 7705 SAR DATASHEET RELEASE 4.0

[. . . ] In addition to pseudowire transport, IP routing and forwarding and Virtual Private LAN Service (VPLS) are supported. Services such as Asynchronous Transfer Mode (ATM), inverse multiplexing over ATM (IMA), Ethernet and TDM traffic can be natively switched across the 7705 SAR. Alcatel-Lucent 7705 SAR-18 The Alcatel-Lucent 7705 SAR supports RFC 5086 -- Structure-Aware TDM Circuit Emulation Service over Packet Switched Network (CESoPSN) and also RFC 4553 -- Structure-Agnostic TDM over Packet (SAToP) for the encapsulation and transport of TDM traffic; for example, from mobile 2G, TDM-attached base stations. The use of circuit emulation service (CES) ensures that only the active time slots are transported, keeping bandwidth usage to a minimum. Also, the Alcatel-Lucent 7705 SAR supports RFC 4717 -- Encapsulation Methods for Transport of ATM over MPLS networks; N:1 cell mode is supported. [. . . ] GRE or IP tunneling allows low-cost, ubiquitous IP networks to be used for backhauling; for example, for the transport of HSPA (High Speed Packet Access) off-loaded traffic using DSL access media. marking are carried out based on the following categories: Classification (Layer 1/Layer 2/Layer 2. 5 and/or Layer 3 header): · Timeslot/port · Ethernetport/VLAN · ATMservicecategory(CBR/rt-VBR/ nrt-VBR/UBR) · ATMVC · Ethernet802. 1p/VLAN · IPDSCP/MPLSEXP Marking: · Layer2(802. 1p) · Layer2. 5(EXP)bothfortunnel and PWE3 · Layer3(DiffServ) Label switched routing The 7705 SAR can be configured as either a Label Edge Router (LER) or a full Label Switched Router (LSR). Label Switched Paths (LSPs) can be signaled using either the Label Distribution Protocol (LDP) or the Resource Reservation Protocol with Traffic Engineering (RSVP-TE). The 7705 SAR brings a strong suite of traffic engineering and resiliency capabilities using functions such as Constraint-based Shortest Path First (CSPF) routing, Fast Reroute (FRR), primary and secondary LSPs and redundant pseudowires. The Alcatel-Lucent 7705 SAR utilizes extensive traffic management policies to ensure fairness with detailed classification and hierarchical scheduling including: minimum/maximum, queue type-based weighted round robin or strict priority and profiled scheduling, as well as 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, administration and maintenance (OAM) features including: · LSPping · LSPtraceroute · Servicedistributionpath(SDP)ping ¬ Verifies, for example, tunnel connectivity and round-trip delay · Virtualcircuitconnectivityverification (VCCV) ¬ Verifies, for example, service level existence and round-trip time ¬ Extends OAM to pseudowire services · EthernetOAMfunctions, forexample: ¬ 802. 3ah: Ethernet in the First Mile ¬ 802. 1ag: Connectivity Fault Management ¬ Y. 1731: Ethernet OAM mechanisms for fault management -- mainly at a service level Quality of service and traffic management It is critical to maintain the end-to-end quality of service (QoS) for packet traffic. Not all types of traffic have the same set of requirements. Voice traffic in particular requires low latency and jitter (latency variation) as well as low loss, whereas data traffic often has less stringent delay requirements but may be very sensitive to loss, as packet loss can seriously constrain application throughput. To offer the required treatment throughout the network, traffic flows with different requirements are identified at the access and marked in-line with the appropriate QoS metrics. Traffic classification and 2 Alcatel-Lucent7705SAR|Release4. 0|DataSheet Table 1. Features and benefits FEATURES BENEFITS Cost-effectivemigrationfromE1/T1-basedbackhaultoeconomicalandflexible IP/MPLS-basedtransport, leveragingEthernetorISPnetworkservicesovera wide range of first mile media Resiliencyandredundancyincluding:One-for-onehitlesscontrolandswitch modulefailover(7705SAR-8and7705SAR-18), synchronizationredundancy, network uplink resiliency and redundancy of power feeds plus temperature hardening(7705SAR-8and7705SAR-F) Powerful, service-aware OAM capabilities complemented by the Alcatel-Lucent 5620managementportfolioforGUI-basednetworkandelementconfiguration, provisioning, and fault and performance management Dense adaptation of multiple converged services onto an efficient economical packet infrastructure ExtendsserviceroutingIP/MPLSdynamiccapabilitiestotheremotesite, hubs and network edge in compact form factors with low power consumption Breadthofsynchronizationsolutionswithflexibleoperation, redundancy and independent validation of accuracy TransitionfromPDH-basedconnectivitytomodernEthernetand/orIP-based networkinginfrastructurescangreatlyreducerecurringoperatingexpenditures 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. Rapidfaultdetectionandpowerfulcommissioningandtroubleshootingtools can improve productivity of operations staff and reduce network downtime. Multiprotocolandconvergencecapa ilities(withflexibleandgranularQoS) b reduceequipmentinstancesneededtocarrymultipletraffictypes. Compact, energy efficient platforms reduce power and cooling costs. Modular, flexiblearchitecturealleviatestheburdenofcomplexpre-engineering and future scenario planning. Compact, rugged form factors allow remote sites to be addressed. Accuratesynchronizationallowscost-effectivedeploymentoverpacket infrastructureandimprovestheuserexperience(forexample, lessdataloss and minimal dropped calls in mobile applications). · ServiceAssuranceAgent(SAA) ¬ Runs in background, periodically collecting network `health' information from OAM mechanisms (such as VCCV) and monitoring for problems (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 proactively monitored by the SAA. This powerful capability allows the specification of test suites, policies and schedules. The tests are then auto-created, and the results obtained are automatically compared to predefined SLA metrics. [. . . ] Integrated DS3 point-to-point trunking is supported using a SFP device. 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 and Alcatel-Lucent7705SAR|Release4. 0|DataSheet 3 7705 SAR-8 The 7705 SAR-8 is a two-rack unit (2 RU) version of the 7705 SAR with industry-leading access density. The platform can be optionally configured with a redundant control and switch module and uplinks. The Alcatel-Lucent 7705 SAR-18 has 18 slots; two are allocated for control and switch modules (CSMs), with the remaining 16 being available for user traffic adapter cards. [. . . ]