Unidirectional Link Detection: Difference between revisions

Revision as of 18:56, 21 June 2012

Revision as of 18:57, 21 June 2012

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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

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* [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 10Gig Link Fault Signaling Updated to IEEE Draft P802.3ae/D3.2]

[[Category:Link protocols]]