Lantronix S3220 Series User Guide Rev J PDF 34.75 MB - Page 20

Transition Networks ION x222x / x32xx User Guide On 100BaseFx Ports, optical link integrity can be identified by FEF. This is very useful to detect network faults since fiber links can be long. FEF occurs when the device detects that it cannot sense any more IDLE symbols on the link. This indicates a fault on the receiving end, and the device sends FEF signals on its transmit circuit, notifying its link partner of the fault. Advantages include: • Both end devices are notified automatically of the link loss. • Prevents loss of valuable data transmitted unknowingly over an invalid link. • Allows quick diagnosis and resolution of network problem. Transition Networks media converters that include the FEF feature will work with other network devices that support Far End Fault per IEEE standards. Management Access Methods Management of the x222x / x32xx, and subsequently the other slide‐in modules, is accomplished through one of the following methods. • Universal Serial Bus (USB) - uses a command line interface (CLI) to access and control the x222x / x32xx through a locally connected workstation. • Telnet session - uses the CLI to access and control the x222x / x32xx through the network. • Secure Shell (SSH) - uses the CLI to access and control the x222x / x32xx through the network. Web browser - access and control the x222x / x32xx using a standard web browser and a graphical user interface (GUI). • Simple Network Management Protocol (SNMP) - both public and private Management Information Bases (MIBs) allowing for a user to easily integrate and manage the ION platform with an SNMP based network management system (NMS). TFTP (Trivial File Transfer Protocol) The TFTP client provides uploading and downloading of files out of the device's file system. Typical applications for this protocol on this device include backup of configuration, restore known configuration from a file, firmware image upgrade/downgrade, log files backup, certificate download for SSH, SSL applications etc. SLPT (Selective Link Pass Through) This feature monitors the fiber Rx port for signal loss. If the fiber Rx goes down, the copper port stops transmitting. SLPT monitors the link status of one port on Device A, and any change in its operational state is passed on to the device's other port to bring down its link, and vice‐versa. SLPT is similar to LPT, except SLPT only works in one direction ‐ from Port 1 to Port 2, or from Port 2 to Port 1, but not in both directions. Selective LPT is typically supported by devices which support 'Transparent LPT'. 33472 Rev. J https://www.transition.com Page 20 of 700