Ideal for IP DSLAM and WiMAX base station backhaul applications, the Egate-2000 leverages widely available PDH/SDH/SONET infrastructure to deliver carrier-class Ethernet services to sites where native Ethernet is not available.
Egate-2000 features five SDH/SONET ports supporting various configurations of STM-16/OC-48, STM-4/OC-12 and STM-1/OC-3 interfaces. Ethernet tributary interfaces include four multi-rate FE/GbE UTP ports and four GbE SFP ports. The device is fully redundant, including redundant AC/DC power supply modules.
The Egate-2000 can connect up to:
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256 remote LANs over E1 or T1 circuits, working opposite RIC, RICi and MiRICi Ethernet over PDH access devices
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Four VC-4/STS-3c circuits, working opposite the RIC-155L Ethernet over SDH/SONET access devices
In addition, it supports any combination of the above with VC-12/VT 1.5 rate granularity and aggregation capacity of up to 2 x STM-4/OC-12.
The Egate-2000 supports next-generation Ethernet over TDM encapsulation, using standard protocols for generic framing procedure (GFP), virtual concatenation (VCAT) and link capacity adjustment scheme (LCAS). These protocols allow service providers to dynamically allocate bandwidth to their customers by simply changing the number of links bonded to the virtual group, without the need to change the NTU device or stop the service. In addition to supporting easy interoperability with third-party equipment, these protocols eliminate SDH/ SONET bandwidth restrictions and provide bandwidth-on-demand flexibility for delaysensitive applications.
The Egate-2000 supports up to 256 GFP VCAT groups (VCG), with 16 E1/T1 per VCG.
To ensure higher service uptime and carriergrade resiliency, the Egate-2000 supports standard Ethernet Ring Protection Switching per G.8032 as well as Ethernet Link Aggregation per IEEE 802.3ad and SDH/SONET 1+1 APS redundancy protection.
The Egate-2000 supports STM-1/OC-3, STM-4/OC-12 and STM-16/OC-48 add/drop multiplexing (ADM) for grooming LAN and TDM traffic over SDH/SONET networks.
The Egate-2000 features advanced traffic management capabilities:
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User traffic classification according to VLAN ID, VLAN priority, DSCP, ToS, or MAC address, supporting thousands of CoS flows (EVC.CoS) per EVC
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Two-rate, three-color traffic policing per CIR/ CBS, EIR/EBS bandwidth profiles
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Hierarchical QoS supporting multiple priority queues per EVC with Strict Priority, weighted round robin (WRR) and weighted fair queuing (WFQ) scheduling
These capabilities enable service differentiation and SLA guarantees for point-to-point Ethernet Private Line (EPL) and Ethernet Virtual Private Line (EVPL) services, as well as for Ethernet Private LAN and Ethernet Virtual Private LAN services.
The device supports VLAN-aware bridging, IEEE 802.1Q VLAN tagging, Q-in-Q, Rapid Spanning Tree Protocol, and Ethernet jumbo frames. The Egate-2000 is managed by the RADview-EMS, RAD’s carrier-class management system.
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