- Used where there are fibre links between switches (but can also be applied to Copper interfaces)
- Interface could be seen as Up/Up but due to a mismatch on the tx/rx pairs the comms become unidirectional
- UDLD Normal mode error-disabled the end that detected the unidirectional state - default mode
- UDLD Agressive mode disables both ends - set it with the [agressive] switch
- Uses 15 sec hello timer
- Can be applied globally or on the interface
Wednesday, November 14, 2012
CCDP - ARCH - UDLD (UniDirectional Link Detection):
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