The EXFO RTU-310 IP Services Test Head is a remote testing unit for validating IP network services and performance metrics across Ethernet infrastructures. It operates at testing rates up to 1 GbE and provides Layer 2 and Layer 3 loopback functionality, RFC 2544 compliance measurements, and advanced QoS monitoring. The unit enables centralized network validation from remote locations, supporting bandwidth assessment, latency measurement, and frame loss analysis across single and multiple traffic streams. The RTU-310 has reached end-of-service as of June 30, 2021.
## Technical Specifications
**Testing Capacity**
• Maximum testing rate: 1 GbE
• RFC 2544 measurement capability: 30 Mbit/s (remote to local), 70 Mbit/s (local to remote)
**Electrical Interfaces**
• 10/100/1000 Base-T via RJ-45 port
• Two RJ-45 management interfaces
• Reference out and clock out interfaces
**Optical Interfaces**
• 100Base-FX and 1000Base-X via SFP interface
• Supported wavelength configurations: 100Base-LX, 1000Base-SX, 1000Base-LX, 1000Base-ZX for LAN-to-LAN services
## Key Features
**Layer 2 and Layer 3 Loopback**
Supports single-ended testing scenarios with bidirectional measurement capability.
**RFC 2544 Compliance**
Throughput, back-to-back frames, latency, and frame loss measurements with bidirectional testing.
**QoS Monitoring and Stream Analysis**
• Configurable traffic filters: up to 10 filters, each with four operands
• Traffic stream configuration: up to 10 streams with distinct Ethernet and IP QoS parameters
• Supported QoS parameters: VLAN ID (802.1Q), VLAN Priority (802.1p), VLAN stacking (802.1ad Q-in-Q), ToS, and DSCP
• Selectable stream profiles for VoIP, video, and data services
• Simultaneous per-stream measurements: throughput, latency, frame loss, and packet jitter (RFC 3393)
**TCP Throughput Testing**
Operates as remote TCP server for maximum window size and throughput analysis.
**EtherSAM (ITU-T Y.1564)**
Full service turn-up and troubleshooting capability for Carrier Ethernet services.
**Fibre Channel Testing**
Supported for storage network environments.
## Typical Applications
• Service provider network validation and acceptance testing
• Network administrator remote troubleshooting and performance assessment
• Carrier Ethernet service turn-up and verification
• Multi-stream QoS validation across diverse traffic classes
• TCP throughput characterization in WAN environments
