Link: https://www.cisco.com/c/en/us/support/docs/lan-switching/unidirectional-link-detection-udld/217977-configure-the-udld-protocol-feature.html
Description: WEBUpdated: August 17, 2023. Document ID: 217977. Bias-Free Language. Contents. Introduction. Prerequisites. Requirements. Components Used. Conventions. Problem Definition. How Unidirectional Link Detection Protocol Works. UDLD Modes of Operation. Availability. Configuration and Monitoring. Related Information. Introduction.
DA: 50 PA: 18 MOZ Rank: 42
Link: https://en.wikipedia.org/wiki/Unidirectional_Link_Detection
Description: WEBUnidirectional Link Detection (UDLD) is a data link layer protocol from Cisco Systems to monitor the physical configuration of the cables and detect unidirectional links. UDLD complements the Spanning Tree Protocol which is used to eliminate switching loops.
DA: 81 PA: 31 MOZ Rank: 98
Link: https://documentation.meraki.com/MS/Other_Topics/Unidirectional_Link_Detection_(UDLD)
Description: WEBApr 3, 2024 · The purpose of Unidirectional Link Detection (UDLD) is to detect and deter issues that arise from Unidirectional Links. UDLD helps to prevent forwarding loops and blackholing of traffic by identifying and acting on logical one-way links that would otherwise go undetected. UDLD Overview.
DA: 81 PA: 83 MOZ Rank: 33
Link: https://learningnetwork.cisco.com/s/article/unidirectional-link
Description: WEBUDLD is cisco proprietary Layer 2 messaging protocol (RFC 5171) designed to detect unidirectional links and prevent the impact. It serves an echo mechanism between the pair of devices by sending UDLD messages. Devices on both ends of the link must support UDLD in order for the protocol to successfully identify unidirectional links and for a ...
DA: 80 PA: 37 MOZ Rank: 22
Link: https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst3560/software/release/12-2_52_se/configuration/guide/3560scg/swudld.pdf
Description: WEBUDLD is a Layer 2 protocol that enables devices conn ected through fiber-optic or twisted-pair Ethernet cables to monitor the physical configuration of the cables and detect when a unidirectional link exists. All connected devices must support UDLD for the protocol to successfully identify and disable unidirectional links.
DA: 16 PA: 69 MOZ Rank: 92
Link: https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/12-2SX/configuration/guide/book/udld.pdf
Description: WEBUDLD Overview. The Cisco-proprietary UDLD protocol monitors the physical configuration of the links between devices and ports that support UDLD. UDLD detects the existence of unidirectional links. When a unidirectional link is detected, UDLD puts the affected port into the errdisabled state and alerts the user.
DA: 17 PA: 2 MOZ Rank: 86
Link: https://packetlife.net/blog/2011/mar/7/udld/
Description: WEBMar 7, 2011 · Unidirectional Link Detection (UDLD) is a Cisco-proprietary layer two protocol devised to automatically detect the loss of bidirectional communication on a link. It is often mentioned in discussion of spanning tree, but has no direct relation to IEEE 802.1D. UDLD can be run on both fiber optic and twisted-pair copper links.
DA: 35 PA: 33 MOZ Rank: 46
Link: https://community.cisco.com/t5/small-business-support-knowledge-base/configure-the-udld-settings-on-a-switch/ta-p/3362005
Description: WEBApr 6, 2018 · The purpose of UDLD is to detect ports on which the neighbor does not receive traffic from the local device (unidirectional link) and to shut down those ports. All connected devices must support UDLD for the protocol to …
DA: 92 PA: 75 MOZ Rank: 80
Link: https://networklessons.com/spanning-tree/spanning-tree-loopguard-udld
Description: WEBThe other protocol we can use to deal with unidirectional link failures is called UDLD (UniDirectional Link Detection). This protocol is not part of the spanning tree toolkit, but it does help us to prevent loops. Simply said UDLD is a layer 2 protocol that works like a keepalive mechanism.
DA: 74 PA: 72 MOZ Rank: 25
Link: https://content.cisco.com/chapter.sjs?uri=/searchable/chapter/www.cisco.com/content/en/us/td/docs/routers/asr1000/configuration/guide/chassis/asrswcfg/udld_on_asr1k.html.xml
Description: WEBMar 28, 2013 · The Cisco-proprietary UDLD protocol allows the devices connected through fiber optic or copper (for example, Category 5 cabling) Ethernet cables that are connected to the LAN ports to monitor the physical configuration of the cables and detect whether a unidirectional link exists.
DA: 88 PA: 23 MOZ Rank: 22
