By using the above QoS features together with real-time flow monitoring, operators can hence have their network resources under proper arrangement while providing customers stable contracted bandwidth and satisfactory networking experience.

Operation Precautions need to be taken for operators to sustain reliable Operation, more specifically the Operation, Administration and Maintenance (OAM), and to react to network deficiencies in time. The OptiQNet 852 offers triple protection, namely 802.3ah (Link OAM) and 802.1ag and Y.1731 (Service OAM) to this purpose. The former focuses on single-hop link status monitoring such as physical link down events and dying gasp, while the latter two emphasizes end-to-end service assurance.

The 802.1ag, known as Connectivity Fault Management, covers several types of messages such as Connectivity Check (CCM), Loop Back (LB), Link Trace (LT), Remote Defection Indication (RDI), etc, to perform scheduled or on-demand maintenance operations over multiple maintenance domain (MD) levels. The Y.1731 extends the maintenance realm from functional examination to performance measurement (PM). Through constant diagnosis on throughput, latency, jitter and loss rate, along with the transport SLA provisioning, operators can be confident of the end-to-end quality of connectivity.

Precision The Operation functionalities can never be trustworthy without precision. To complement this, the OptiQNet 852 is enhanced with a hardware-based IEEE 1588-2008 (i.e. 1588v2 or PTPv2) synchronizer that can achieve a sub-microsecond precision required by latency-related PMs, especially the one-way latency measurement. The precision is sustained even when multiple non-1588v2-capable switches are presented along the way to the master. To maintain the frequency consistency between base stations and the corresponding radio controller in 2G/3G/LTE mobile networks, the Synchronous Ethernet (SyncE) is employed to ensure proper operations.

Transport The basic requirement to meet for CE is the capability to establish transport topologies, such as E-Line/E-Tree/E-LAN mandated by MEF9, via transport channels named Ethernet Virtual Connections (EVCs). The OptiQNet 852 utilizes gigabit VLAN-based switching, rather than normal MAC-learning, to ensure fast convergence of the above topologies observing the spirit of 802.1aj (TPMR). The double-tagging (802.1ad) support further enables the isolation of different customer networks within one provider network, whose scalability in terms of number of VLANs is strengthened to 4096 x 4096.

Another important transport technology involves the Quality of Service (QoS) provisioning that distinguishes the CE from ordinary Ethernet technology. To guarantee Carrier-grade QoS the OptiQNet 852 is geared up with a specially designed hardware capable of per-port/per-flow traffic engineering such as Service-Level-Agreement (SLA) enforcement and CoS mapping. The SLA enforcement is carried out by traffic conditioners such as the burst-tolerant trTCM (two rate Three Color Marker), policer/rate limiter, and shaper. Layer 2 frames are finally scheduled for transmission in a Strict-Priority or Weighted Round-Robin fashion.

OptiQNet 852 Carrier Ethernet Demarcation Device

Broader, Smarter Managed Access

Fiberlogic

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Overview

The OptiQNet 852 is a Carrier Ethernet demarcation device (EDD) standing as a multi-functional bridge at layer 2 between the customer network and provider network. Equipped with various flexible and standard-compliant features, it assures reliable Carrier Ethernet (CE) deployment in terms of Transport, Operation and Precision (TOP).

TM

solutions to

OptiQNet 852 Carrier Ethernet Demarcation Device

Fiberlogic Communications, Inc.

5F-3, No.9 Prosperity Rd One, SBIP, Hsinchu, Taiwan Tel: +886-3-563-8889 Fax:+886-3-563-8899

E-mail: sales@fiberlogic.com

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Fiberlogic

Achieving TOP is the best policy The ever-advancing access technologies demand a solid counterpart in the backhaul. As an emerging technology for mobile backhaul transmission for LTE and future 4G access networks, the Carrier Ethernet requires each component therein pertain to Service MGMT, Standard Service, QoS, Reliability and Scalability. All of these correspond to the three TOP dimensions that the OptiQNet 852 EDD is dedicated to offer.

In all, the Fiberlogic OptiQNet 852 promises a comprehensive set of features with a modest TCO (Total Cost of Ownership), making operators’ Carrier Ethernet investment OpEx-saving and revenue-generating.

Fiberlogic

CE

Solutions

Standard Service

Scalability

Quality of

Service

Service MGMT

Reliability

http://www.fiberlogic.com

The OptiQNet 852 further provides EMS (Element Management System) -level functionalities such as neighbor discovery (802.1AB-2009, latest version of the LLDP protocol) and SNMP (with various MIBs) to ensure administrators’ global view on the managed EDDs. Integrated together with the patent-pending RepiDep technology in our TOPviewTM EMS, automated deployment is made possible with just a few clicks away

To further reduce the processing delay and limitation caused by software-based PMs, an RFC2544-capable H/W tester is introduced as the wire-speed (GbE) traffic generator and analyzer for Y.1731. Note that tests can be performed either in-service (test flows co-exist with user flows) or out-of-service (test flows only), depending on the current network situation. Backward compatibility to traditional TDM links Whilst addressing the emerging Carrier Ethernet backhauling, care needs to be taken to protect capital investment in the existing T1/E1 infrastructure. The MEF9-compliant E-Line mechanism is adopted to emulate a end-to-end leased line using Ethernet connection. Adhering to the Pseudowire Emulation Edge-to-Edge (PWE3) architecture, the TDM signals are encapsulated at one end as payload into Ethernet frames, transported via EVCs, and de-capsulated at the other end to be recovered. Available PWE3 technologies include CESoETH, CESoPSN* and SAToP*.

Increased Revenue

Reduced OpEx

Fiberlogic TOP CE

802.1Q and 802.1ad VLAN

trTCM-based policer and

traffic shaper

Real-time flow monitoring

OAM support including

802.3ah, 802.1ag and Y.1731

RFC2544 tester

IEEE 1588-2008 (PTPv2)

and SyncE synchronization

Neighbor discovery

Fiberlogic’s TOP EDD solution Compromise shall not be an option when dealing with future mobile backhaul networks having stringent Transport, Operation and Precision requirement. Fiberlogic’s OptiQNet 852 adopts the latest off-the-shelf software/hardware technologies to tackle the challenge in the Carrier Ethernet based networks. Aside the aforementioned layer 2 functionalities, packet/service handlings above layer 2 such as Access Control List (ACL), performance benchmark (via RFC 2544) and DHCP are supported as well. In addition, dual power units and boot images are prepared to maximize the system reliability.

OptiQNet 852 Carrier Ethernet Demarcation Device

Fiberlogic Communications, Inc.

5F-3, No.9 Prosperity Rd One, SBIP, Hsinchu, Taiwan Tel: +886-3-563-8889 Fax:+886-3-563-8899

E-mail: sales@fiberlogic.com

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Synchronization and SLA Verification

Synchronization support enables sub-microsecond precision for performance measurement * Precision Time Protocol (PTPv2/1588v2; OC/TC supported) Synchronous Ethernet (SyncE) Built-in RFC2544-capable TOPsureTM performance verification unit Management and Security

Local management via serial or MGMT ports Remote in-band (VLAN) and out-band Telnet/SSH sessions - CLI, Web over HTTP(s), SNMPv1, v2c, v3 - MIBs supported include MIB II, IF-MIB, Ethernet MIB and several proprietary MIBs - Radius-based authentication - TACACS+* Neighbor discovery (LLDP/802.1AB-2009) on managed devices; backward compatible to 802.1AB-2005 Access Control List, DHCP TFTP-based firmware upgrade Dual boot images in case of remote firmware upgrade failure ITU-T FCAPS compatible TOPViewTM management system Configurable syslog level provides flexible system information history RMON Group 1, 3, 4 and 10* Task/Configuration scheduler Alarms and Diagnostics

SNMP-based dying gasp Threshold crossing notification Time Domain Reflectometry (TDR) for cable diagnosis Physical and Environmental

Dimensions(mm): 370(W)x210(D)x45(H) Operating temperature: 0 oC to 65 oC Humidity: up to 90% (non-condensed) Power (2 units for redundancy): - 100-220V AC (60Hz), -42 to -56V DC - Consumption: ≦35W Reliability: 8 years of MTBF

Fiberlogic

http://www.fiberlogic.com

Interface

4 UNIs and 2 SFP-based optical NNIs Jumbo frame support for at least 9000 bytes 802.3ad link aggregation balances load between two NNIs One NNI-UNI interchangeable NNI port* 8/16 T1/E1 ports (CES)

VLAN

MEF9 certified compliant (EPL/EVPL/ELAN) 802.1Q compliant with 802.1ad double-tagging capability 256 concurrent VLANs support 4096 VLANs configurable E-Line/E-Tree/E-LAN establishment without MAC learning VLAN rewrite/translation enabling the relay between heterogeneous VLAN segments L2CP (Layer 2 Control Protocol) tunneling QoS

MEF14 certified compliant (EPL/EVPL/ELAN) CoS mapping of up to 8 traffic classes Priority remarking Hierarchical QoS (H-QoS) Service Level Agreement (SLA) guarantee via traffic conditioners below: - trTCM (two-rate-Three-Color Marker) support - Policer and shaper through CIR, EIR, CBS, EBS configuration - Rate limiting with flexible granularities Real-time monitoring of up to 8 flows Strict Priority and Weighted Fair Queuing available for egress scheduling

OAM

Standard-compliant IEEE 802.3ah, IEEE 802.1ag and Y.1731 management functions IEEE 802.3-2005 Link OAM (previously 802.3ah) - Unidirectional fault detection, loopback, event notification - Dying gasp IEEE 802.1ag (Connectivity Fault Management; CFM) - 8 maintenance domain levels (MDL) per VLAN - 64 maintenance end points (MEP) - Interface-level per-port out-of-service loopback tests - Logical-level per-VLAN and per-802.1p service class MAC- swap in-service loopback tests - Up to 256 concurrent 3.3ms CCM sessions Y.1731 end-to-end performance measurement - Throughput, latency, jitter and loss rate Protection Switching

G.8031 Ethernet Linear Protection Switching (ELPS) G.8032 Ethernet Ring Protection Switching (ERPS)*

Specification

*: to be provided in future S/W releases