Advanced Features
Fiber Port Options
GX/TM models with fixed-fiber connectors are available with multimode dual fiber, single-mode dual fiber and single-mode single-fiber options. They support ST, SC, LC and MT-RJ connectors with distances up to 550m over MM fiber, 140km over SM fiber and 40km over SF. The GX/TM Small Form Pluggable (SFP) model supports a wide variety of SFP transceivers available in 20nm increments from 1270nm to 1610nm to support FTTX and CWDM applications.
Link Modes
The GX/TM features multiple, user-selectable link fault detection modes, including Link Propagation, Remote Fault Detection and Symmetrical Fault Detection. These Link Modes provide rapid fault detection and isolation by monitoring the state of the cabling hardware, and operate independently of the network management.
Tag VLAN, Port VLAN and QoS
The iConverter GX/TM supports the IEEE 802.1Q Virtual Local Area Network (VLAN) packet tagging and untagging and the 802.1p Quality of Service priority standards.
GX/TM VLAN tunneling technology enables service providers to offer their customers E-Line and E-LAN services via Ethernet Virtual Channel (EVC), which connect business locations across town and make their networks appear to be on the same local network. VLAN technology transparently transports customer network traffic across the service provider network, and isolates it from other customer traffic and the service provider management traffic.
GX/TM Port VLAN enables the ability to specify and restrict traffic flow between the fiber, UTP, backplane and management ports.
The 802.1p prioritization standard enables delivery of Quality of Service (QoS) to high-priority, real-time applications such as voice and video over Ethernet.
Port Access Control
The GX/TM features Port Access Control which blocks user service while maintaining the network link. Port Access Control enables the service provider to control user access while maintaining port configuration for easy disabling or enabling of customer service. Port Access Control provides enterprise administrators the capability to improve network security by controlling port access when the port is not in use.
Port Statistics and Optical Performance Statistics
The GX/TM supports reporting of utilization, port and optical performance statistics. Port statistics are available for 38 different variables for the UTP and fiber ports. Additionally, full optical performance statistics are available on SFP fiber transceivers with a digital diagnostic bus.
Port and optical performance statistics reporting provides the ability to monitor customer bandwidth utilization, network performance and the link signal quality for each individual port.
IEEE 802.3ah Operations, Administration and Maintenance
The GX/TM supports the IEEE 802.3ah OAM standard, including Fault Detection, Performance Monitoring and Remote Loopback.
Fault Detection
The GX/TM detects and indicates link failures, dying gasp and other critical events.
Performance Monitoring
802.3ah Performance Monitoring tools are used for the detection and notification of link performance (quality) faults. Ethernet data performance can deteriorate slowly before disrupting service, and the GX/TM allows the setting of error-per-second thresholds. Once the pre-set error threshold is exceeded, an event notification is generated that provides early indication of a problem that may be resolved prior to loss of service.
Remote Loopback
Remote Loopback is used for fault localization and link performance testing. When a GX/TM port is in loopback mode, all received service traffic is looped back and transmitted back unaltered. The statistics from the GX/TM port and the remote link partner can be compared for consistency.
Documents
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