Pm-4 - Error Recovery Cisco
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SwitchingSpanning Tree ProtocolTroubleshoot and AlertsConfiguration Example and TechNotes Errdisable Port State Recovery on the Cisco IOS Platforms Download link flap error Print Available Languages Download Options PDF (143.8 KB) View with Adobe
Pm-4-err_disable
Reader on a variety of devices ePub (82.1 KB) View in various apps on iPhone, iPad, Android, pm 4 err_disable bpduguard error detected Sony Reader, or Windows Phone Mobi (Kindle) (87.6 KB) View on Kindle device or Kindle app on multiple devices Updated:Mar 23, 2016 Document ID:69980 ContentsIntroductionPrerequisitesRequirementsComponents UsedBackground InformationPlatforms errdisable recovery cause security-violation That Use ErrdisableErrdisableFunction of ErrdisableCauses of ErrdisableDetermine If Ports Are in the Errdisabled StateDetermine the Reason for the Errdisabled State (Console Messages, Syslog, and the show errdisable recovery Command)Recover a Port from Errdisabled StateCorrect the Root ProblemReenable the Errdisabled PortsVerifyTroubleshootRelated Information Introduction This document defines the errdisabled state, describes how to recover from it, and provides
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examples of errdisable recovery. This document uses the terms errdisable and error disable interchangeably. Customers often contact Cisco Technical Support when they notice that one or more of their switch ports have become error disabled, which means that the ports have a status of errdisabled. These customers want to know why the error disablement happened and how they can restore the ports to normal. Note: The port status of err-disabled displays in the output of the show interfaces interface_number status command. Prerequisites Requirements There are no specific requirements for this document. Components Used In order to create the examples in this document, you need two Cisco Catalyst 4500/6500 Series Switches (or the equivalent) in a lab environment with cleared configurations. The switches should run Cisco IOS® Software and each switch should have two Fast Ethernet ports that are capable of EtherChannel and PortFast. The information in this document was created from the devices in a specific lab environment. All of the devices used i
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& Windows 8.1Windows 2000 ServerWindows 2003 ServerWindows 2012 ServerLinuxIntroduction To LinuxLinux AdministrationSystem and Network ServicesOpenMosix- Linux SupercomputerMore ContentHot Product ReviewsSecurity http://www.cisco.com/c/en/us/support/docs/lan-switching/spanning-tree-protocol/69980-errdisable-recovery.html ArticlesGFI Network SecurityGFI LanGuard: Network Security ScannerGFI WebMonitor: Web Security & MonitoringE-mail Security White PapersCloud-Based SolutionsFree Security ServicesNetsparker Web Application Security ScannerManageEngineOpManager - Network Monitoring & ManagementOther ArticlesWhitepapersIT Books - Certification Guide ReviewsFCX RelatedFree Cisco LabCisco Password DecoderNetwork ToolsDownloadsForum http://www.firewall.cx/cisco-technical-knowledgebase/cisco-switches/883-cisco-switches-errdisable-autorecovery.html Monday, 24 October 2016 HomeCiscoCisco SwitchesErr-disabled Port State, Enable & Disable Autorecovery Feature Hot Downloads Network Security Scanner Free Download Free Hyper-V & VMware Backup Get 2 VMs for FREE, forever! Free Bandwidth Monitoring Free Download Free Bandwidth Monitoring Free Download Web Monitoring & Security Free Download Free Network Monitoring Manage your Network! Free Bandwidth Monitoring Free Download Network Patch Scanner Free Download Network Security Scanner Free Download Err-disabled Port State, Enable & Disable Autorecovery Feature Written by Administrator. Posted in Cisco Switches - Catalyst / Nexus Switch Configuration 4.34482758621 1 1 1 1 1 Rating 4.34 (29 Votes) TweetErrdisable is a feature that automatically disables a port on a Cisco Catalyst switch.When a port is er
Jahanzaib / Pinochio~:) @ 2:09 PM Personnel Reference Guide: Errdisable is a feature that automatically disables a port on a Cisco Catalyst switch and is https://aacable.wordpress.com/2012/12/07/cisco-3750-howto-enable-err-disabled-ports/ supported on most Catalyst switches running the Cisco IOS software. The Errdisable error disable feature was designed to inform the administrator when there is a port problem or error. The http://leighfinch.net/cisco_wiki/index.php/V5_Error_Disable_Recovery reasons a catalyst switch can go into Errdisable mode and shutdown a port are many and include: Duplex Mismatch Loopback Error Link Flapping (up/down) Port Security Violation Broadcast Storms When error detected a port is in error-disabled state, it is effectively shut down and no traffic is sent or received on that port. The port LED is set to the orange color and, when you issue the show interfaces command, the port status shows as Errdisabled. To enable err-disabled ports on Cisco 3750 switch series. Follow the below . . . First pm-4 - error make telnet connection with the switch telnet 10.0.0.1 (change the ip as required,) Enter Password to continue. To view Disabled Ports: show interfaces status err-disabled e.g: NOC_SWITCH>show int status err-disabled Port Name Status Reason Err-disabled Vlans Gi2/0/10 err-disabled link-flap NOC_SWITCH> To Enable Port: enable config t int G2/0/10 no switchport port-security (< You probably dont need this line, its just to disable pot security feature, I used it to perform various tests) shut no shut exit Change the interface name to match your. In above example I had two 3750-e models in stack mode. so its showing G2, you may get G1 if you have single switch. TIP: Link flap means that the specific port continuously goes up and down. The port is put into the errdisabled state if it flaps more than four-five times in few seconds. The common cause of link flap is a Layer 1 issue such as a bad cable, duplex mismatch. For more detailed and brief descriptions, please visit http://www.firewall.cx/cisco-technical-knowledgebase/cisco-switches/883-cisco-switches-errdisable-autorecovery.html Regard's Syed Jahanzaib 24.851000 67.008300 Like this:Like Loading... Related Commen
port can be in as a result of an unexpected event. Recovery from a error disable event can be automated using the error disable recovery commands or manually by issuing a shutdown followed by a no shutdown. Causes of error disable can include BPDU filter, port security, and UDLD among many others. Commands Command to set the recovery interval S2(config)#errdisable recovery interval 30 Command to enable error recovery This command will recover a port. S2(config)#errdisable recovery cause all Verification Interface will look as down in show ip interfaces brief S2#sh ip int brie | i 0/0 Ethernet0/0 unassigned YES unset down down Show interface status will show the interface as down down. S2#sh interface status Port Name Status Vlan Duplex Speed Type Et0/0 err-disabled 1 auto auto unknown Example logs *Aug 3 23:12:10.193:%PM-4-ERR_DISABLE: bpduguard error detected on Et0/0, putting Et0/0 in err-disable state *Aug 3 23:12:40.196:%PM-4-ERR_RECOVER: Attempting to recover from bpduguard err-disable state on Et0/0 *Aug 3 23:12:40.256:%SPANTREE-2-BLOCK_BPDUGUARD: Received BPDU on port Et0/0 with BPDU Guard enabled. Disabling port. *Aug 3 23:12:40.256:%PM-4-ERR_DISABLE: bpduguard error detected on Et0/0, putting Et0/0 in err-disable state Retrieved from "http://leighfinch.net/cisco_wiki/index.php?title=V5_Error_Disable_Recovery&oldid=334" Personal tools Log in Namespaces Page Discussion Variants Views Read View source View history Actions Search Navigation Main page Community portal Current events Recent changes Random page Help Toolbox What links here Related changes Special pages Printable version Permanent link This page was last modified on 10 August 2014, at 20:55. This page has been accessed 981 times. Content is available under Creative Commons Attribution. Privacy policy About Cisco Wiki Disclaimers