RAD Data comm RICi-622GE Manual do Utilizador descarregar pdf (Página 17)

RAD Data Communications 2011 Catalog

ETHERNET OVER FIBER

Incorporating RAD’s SyncToP synchronization

and Timing over Packet feature set, the

ETX-212A utilizes standard technologies, such

as 1588v2 Precision Time Protocol and

Synchronous Ethernet, to ensure highly accurate

traffic delivery in packet-based mobile backhaul

networks. For further details on ETX-212A’s

SyncToP capabilities, please refer to page 74.

Hardware-based Ethernet OAM and

performance monitoring for SLA assurance

The ETX-212A combines Ethernet demarcation

with test-head functionalities, featuring a

complete Ethernet OAM suite that includes

Ethernet Link OAM (IEEE standard 802.3-2005,

formerly 802.3ah), Ethernet Service OAM (IEEE

802.1ag) and Performance Monitoring (ITU-T

Y.1731). These are enhanced with a built-in

RFC-2544 test generation engine for

unidirectional and bi-directional testing of

throughput, latency and frame loss. In addition,

the device features Layer 1, 2 and 3 diagnostic

loopback capabilities with MAC and IP address

swap.

Featuring ultra-fast, hardware-based processing

capabilities, the ETX-212A performs OAM and

PM measurements in under 1 microsecond with

maximum precision, offering the following

powerful benefits:

•

Immediate detection of loss of continuity

(LOC) to ensure under 50 ms protection

switching

•

Highly accurate frame loss measurements

with live-traffic testing

•

Flow-level monitoring enables simultaneous

processing of hundreds of OAM sessions

•

Loopback testing at line rate

The ETX-212A offers advanced SLA assurance

tools, including user-defined KPI (key

performance indicators) threshold configuration,

real-time SLA violation alerts and per-flow daily

statistics reporting.

Fault propagation mechanisms include

subscriber port shutdown, as well as alarm

indication signal (AIS) and remote defect

indication (RDI) per Y.1731, to allow immediate

notification and containment of service-affecting

problems.

Remote provisioning and traffic

management

The ETX-212A features advanced softcore

architecture for efficient handling of multi-

priority traffic on a per-flow basis, with ultra-

high capacity that enables simultaneous

processing of hundreds of service flows. The

device enables multi-criteria traffic classification

as well as metering, policing and shaping to

help carriers rate-limit user traffic according to

pre-defined CIR (committed information rate)

and EIR (excess information rate) profiles.

Enhanced quality of service is further supported

by a hierarchical scheduling mechanism that

combines Strict Priority (SP) and weighted fair

queue (WFQ) scheduling, to efficiently handle

real-time, premium and best-effort traffic. The

ETX-212A also uses weighted random early

detection (WRED) policy for intelligent queue

management and congestion avoidance. Packet

editing functionalities, such as color-sensitive

P-bit re-marking, ensure metering continuity

across color-aware and color-blind metro

networks and WANs.

Uplink resiliency and protection

The ETX-212A offers various tools to ensure five

nines (99.999%) availability and speedy

restoration in the event of network outages.

These include dual homing link redundancy and

Link Aggregation (LAG) using 802.3ad LACP. Path

protection is supported with Ethernet Linear

Protection Switching per ITU-T G.8031, to

ensure end-to-end service is maintained when a

fault is detected in one of the logical EVCs. In

addition, the ETX-212A supports Ethernet 1-GbE

or 10-GbE Rings Protection Switching (ERPS) per

G.8032.

Management and security

The ETX-212A features flexible management

capabilities, including local management via an

ASCII terminal (RS-232). In addition, remote

management can be performed either inband

using the network or user ports, or out-of-band

using a dedicated management port, while

maintaining separation between management

and user traffic via the use of VLANs. Advanced

FCAPS (Fault, Configuration, Administration,

Performance, Security) and diagnostic tools are

provided by RADview-EMS, RAD’s carrier-class

element management system, via an SNMP-

based GUI.

The ETX-212A also supports a variety of access

protocols, including CLI over Telnet, SNMP, and

TFTP. Incorporated security features include

Secure Shell (SSH), Web-based Secure Socket

Layer (SSL), SNMPv3, RADIUS and Terminal

Access Controller Access-Control System

(TACACS+), as well as management access

control list (ACL).

•

High capacity demarcation device for

SLA-based Ethernet business services

and mobile backhaul

•

MEF-9 and MEF-14 certified for EPL,

EVPL services

•

Dual GbE network port; up to eight

multi-rate FE/GbE user ports

•

Expandable capacity with two pluggable

modules, each supporting TDM or

Ethernet interfaces:

– Eight or 16 E1/T1 pseudowire

connections; or

– Two 10 Gigabit Ethernet XFP/SFP+

ports for G.8032 ERPS

•

Enhanced traffic management with

multiple shapers and H-QoS per EVC/

EVC.CoS

•

Ethernet OAM, performance monitoring

and built-in RFC-2544 tester

capabilities; L2/L3 diagnostic loopbacks

•

ITU-T G.8031 Ethernet Linear Protection

Switching; ITU-T G.8032 Ethernet Rings

Protection Switching

•

Sync-E, 1588v2 support

•

Temperature-hardened enclosure; AC/DC

redundancy

The ETX-212A modular Carrier Ethernet

demarcation device delivers SLA-based services to

the customer premises over native Ethernet

access. Located in enterprise headquarters and

mobile backhaul network hub sites, it is designed

to transport up to 10 Gbps of user throughput

while ensuring SDH/SONET-like performance and

five nines (99.999%) reliability.

Converging voice and data services over a unified

Ethernet, IP or MPLS network, a single ETX-212A

device delivers IP VPN, VoIP and dedicated Internet

access over the same physical link as a Layer 2

LAN-to-LAN service, all with differentiated quality

of service and end-to-end monitoring.

The ETX-212A features two Gigabit Ethernet

network ports and up to eight GbE user ports. All

ports are SFP compatible. In addition, two

pluggable modules support up to 16 E1/T1 ports

for TDM pseudowire emulation over packet.

Alternatively, one of the modules can be equipped

with two 10-GbE ports for G.8032 ERPS.

For latest updates visit www.rad.com

ETX-212A

Modular Carrier Ethernet

Demarcation Device – Flexible Core

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