Carrier Ethernet : TJ2031
Compact Carrier Ethernet Access/Aggregation Switch
Overview: TJ2031 is a compact access/aggregation switch which is ideal for aggregating one GigE access rings onto a 10Gbps aggregation packet ring. It supports 2x10GigE line and 10x1GigE client interfaces and a 48Gbps switch fabric.
Ideal Environment: TJ2031 is ideal for building 4-8 Gbps aggregation rings for a variety of applications like 3G backhaul, broadband aggregation and enterprise services. The client traffic typically comes from 1 GigE access rings, which collect traffic from BTSes, DSLAMs and enterprise customers.

High capacity aggregation: With support for 10GigE line side interfaces, TJ2031 enables aggregation rings to run at much higher capacities upto 8Gbps. Since aggregation used to be a bottleneck in the network, high throughput aggregation provides higher bandwidth for end applications.
50ms protection: With support for ITU-T G.8031 and G.8032, TJ2031 supports both path and ring protection within 50 ms. This enables reliable and disruption free connectivity for mobile base stations and high ARPU segments like banking & finance, and for VOIP and Video conferencing customers
Connection oriented Ethernet: TJ2031 supports connection oriented ethernet which enables traffic engineered end-to-end circuits to be provisioned across the network. These circuits can have service parameters like CIR (committed information rate),EIR (excess information rate) and 50ms protection. The concept of a connection in a packet switched network is very useful for providing tunnels for specific applications, providing bandwidth and latency guarantees, and for security.
Ethernet OAM: Allows real-time monitoring of end-to-end circuits, connections or trunks, enabling quick detection of faults and isolating of fault to a particular subnet, trunk, link or node. Leads to substantial Opex savings
Hierarchical Quality of Service: Allows Service Provider to control bandwidths and latencies on a per service and per application level. Thus within a single service, bandwidth, latency and reliability gurantees can be provided per application. By mixing and matching these parameters, new revenue generating services can be offered or existing services can be differentiated
Technical Specifications*
User Interfaces
- Base Fabric Card + 2 Half-slots OR 1 Full Slot
- Base Fabric Card: 2 x 10GE XFP + 8xGE SFP + 4xGE Combo ports
- OTU2e Support
Packet Capabilities
- 48 Gbps
- 128K MAC Address Table
Packet Forwarding
- Port
- 128K MAC Address Table
Services
- MEF defined – ELINE, ELAN
- VLAN Aware - C-VLAN, SP-VLAN, B-VID and I-SID
Hardware Redundancy
Quality of Service
- Hierarchical QoS : Per UNI/Per Tunnel/Per Service
- MEF model (CIR, CBS, EIR, EBS)
- Color awareness and marking
- Strict Priority, WFQ, WRR Scheduling
- WRED Support
- 128MB Buffer
Packet Classification
- C-VLAN & SP-VLAN (IEEE 802.1Q /.1ad)
- PBB (I-SID, IEEE 802.1ah) Traffic Engineering
- PBB-TE (IEEE 802.1Qay)
Protection Features
- Ethernet Linear Protection (ITU-T G.8031)
- Ethernet Ring Protection Switching (ITU-T G.8032)
Circuit Emulation & Synchronization
- 32xE1/T1 (occupies one full slot)
- MEF-8 defined pseudowires
- G.8261/G.8262 (Synchronous Ethernet) based Synchronization
Strong OAM features
- Port Mirroring
- Support for Connectivity Fault Management (IEEE 802.1ag)
Performance Monitoring
- Ingress, egress packets
- Monitoring of flows as per ITU-T Y.1731
Management
- TJ5200 (Tejas Ethernet Service Manager)
- 10/100 Base-Tx (RJ45) management interface
Power Supply
- AC/DC Power Supply Options
- Power consumption less than 300 W
Physical Dimensions
- Dimensions (H x W x D): 80 mm x 445 mm x 280 mm
*Specifications are subject to change without notification