TCP/IP MIB-II
Specific Trap Type Code - 0x1A2
This trap will be generated when it is determined that a port on a strictly bridging interface (not a “repeater”) has been connected to a LAN. This is only appropriate for ports that support the concept of a link state. The interesting information will include:
ctIfNumber {ctIfEntry 1}, ctIfPortPortNumber {ctIfPortEntry 1},
Trap description
InterfacePortLinkDown
Specific Trap Type Code - 0x1A3