Unidirectional Link Detection: Difference between revisions

Revision as of 18:54, 21 April 2012

Revision as of 18:56, 21 June 2012

Line 11:

D-Link has their DULD feature built on top of [[Ethernet]] [[OA&M|OAM]] function.

Brocade devices also have support for UDLD.

The need for UDLD has been eliminated when operating over 10GbE, as per 802.3ae/D3.2, when a fault is detected in the physical link:

1) The local device signals local fault is signaled by PHY

2) The local device ceases transmission of MAC frames and transmits remote fault

3) The remote device receives remote fault and stops sending frames and continuously generates idle frames

== External links ==

* [http://www.cisco.com/en/US/tech/tk389/tk621/technologies_tech_note09186a008009477b.shtml Understanding and Configuring the Unidirectional Link Detection Protocol Feature] at [[Cisco Systems]]

* [https://www.iol.unh.edu/services/testing/10gec/training/10GbE_fault_signaling.pdf]

[[Category:Link protocols]]

[[Category:Cisco protocols]]