708E Series User Manual
17
(2) Link Fault Pass Through (LFPT)
LFTP must be used with Long Reach Switch / Extenders arranged in pairs, and both devices
must support LFPT. If only one device is used, the LFPT function will not work properly
It allows you to select LFPT Enable or Disable and has been further enhanced for monitoring
and maintenance purposes.
Link Fault Pass Through on the 708E Series can be enabled/disabled via WEB configuration
and the 101EPI can be enabled/disabled via DIP switch on the device individually, and has
been further enhanced for monitoring and maintenance purposes.
Example-1:
In case of cable breaks between 708EPx and 101EPI ,the 708EPx detects cable break at P2
then trigger LINK DOWN at P0(uplink port) and it will send a trap alert to the network
administrator and 101EP turn off the PoE out.
Example-2:
In case of cable breaks ,the 708EPx detects cable break at P0 (uplink) then trigger LINK
DOWN and turn off power out at P2 (Line) and it will sends a trap alert to the network
administrator and the
101EP can’t offer Power out to PD (Powered Device).
