Lantronix C4110-4848 CLI Reference Guide Rev B PDF 873.04 KB - Page 81

Transition Networks ION x4110 CLI Reference Telnet A user command and an underlying TCP/IP protocol for accessing remote computers. Through Telnet, an administrator or another user can access someone else's computer remotely. Telnet is a terminal emulation program for TCP/IP networks that runs on your computer and connects your PC to a switch management. (Standard: RFC 854.) TFTP (Trivial File Transfer Protocol) A file transfer protocol, with the functionality of a very basic form of File Transfer Protocol (FTP). Due to its simple design, TFTP can be implemented using a very small amount of memory. Because it uses UDP rather than TCP for transport, TFTP is typically used to transfer firmware upgrades to network equipment. TFTP Download / Upload The ability to load firmware, configuration files, etc. through a TFTP server. (AKA, TFTP. Standard: RFC 1350.) TFTP Root Directory The location on the console device (PC) where files are placed when received, and where files to be transmitted should be placed (e.g., C:\TFTP-Root). TFTP Server An application that uses the TFTP file transfer protocol to read and write files from/to a remote server. In TFTP, a transfer begins with a request to read or write a file, which also serves to request a connection. If the server grants the request, the connection is opened and the file is sent in fixed length blocks of 512 bytes. Each data packet contains one block of data, and must be acknowledged by an acknowledgment packet before the next packet can be sent. Examples of available packages include Open TFTP Server, Tftpd32, WinAgents TFTP Server for Windows, SolarWinds free TFTP Server, TFTP Server 1.6 for Linux, and TftpServer 3.3.1, a TFTP server enhancement to the standard Mac OSX distribution. Throughput The maximum rate at which no frame is dropped. This is typically measured under test conditions. TNDP (TN Topology Discovery Protocol) the Transition Networks implementation of LLDP. When set to Enabled, the device entering this command/setting will no longer be discovered by the IONMM if it is remotely managed through this port. See also "LLDP" and the "set tndp" and "show tndp" CLI commands. See also "Discovery". Trap In SNMP, a trap is a type of PDU used to report an alert or other asynchronous event about a managed subsystem. Also, a place in a program for handling unexpected or unallowable conditions - for example, by sending an error message to a log or to a program user. If a return code from another program was being checked by a calling program, a return code value that was unexpected and unplanned for could cause a branch to a trap that recorded the situation, and take other appropriate action. An ION system trap is a one-way notification (e.g., from the IONMM to the NMS) that alerts the administrator about instances of MIB-defined asynchronous events on the managed device. It is the only operation that is initiated by the IONMM rather than the NMS. For a management system to understand a trap sent to it by the IONMM, the NMS must know what the object identifier (OID) defines. Therefore, it must have the MIB for that trap loaded. This provides the correct OID information so that the NMS can understand the traps sent to it. 33575 Rev. B https://www.transition.com 81