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UDLD

alaquiante
Level 1
Level 1

Dear NetPro Forum,

I would like to get clarification regarding the way UDLD works. The documentation states that quote "UDLD is a Layer 2 (L2) protocol that works with the Layer 1 (L1) mechanisms ". OK, I am aware of NLP and FLP but please explain to me how UDLD works through a Repeater if a mechanism is used which I assume is restricted to run on a segment and should be terminated by the next device. How exatly is a UDLD message exchanged?

Thanks in advance,

Andy

1 Reply 1

bbaley
Level 3
Level 3
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