Log in | How to Buy | Contact Us | United States(Change) Choose Country North America United States Europe Deutschland - Germany España - Spain France Italia - Italy Россия - UTC @seandicksonUDLD likely will not work with vendor-supplied MetroE circuits; however, it depends on how they deliver the service to your gear. Like your first picture in the post. UTC @My_Bits: Although the two modes will inter-operate, a unidirectional link would result in a different error condition on either end. http://ascadys.net/juniper-error/juniper-error-disable.html
Current configuration allows changing the interval and timers (very similar to BFD) as low as 300ms to discover failures. Networking with Cisco and Juniper and possibly other vendors.. Notice we've enabled autorecovery for all Errdisable reasons and the time left to enable the interfaces placed in shutdown state by the port security violation: 2960G# show errdisable recovery
ErrDisable Reason Timer Status
----------------- After resolving the error condition, we can restore the interface to normal operation either by administratively taking it down and then back up (shutdown, no shutdown), or by issuing the global http://kb.juniper.net/KB15494
Unplugging (and maybe not) is just the same as taking the single fiber and cutting it - no more light source). At least when I put an empty GBIC, I get message that module was inserted but nothing more. We can simulate an error on the far end of the link to see how UDLD responds. DynamicBook 0 Select All Add Topics To DynamicBook Rate and give feedback: X This document helped resolve my issue Yes No Additional Comments 800 characters remaining May we contact you if
http://kb.juniper.net/InfoCenter/index?page=content&id=KB13314 @My_Bits (guest) March 7, 2011 at 1:54 p.m. If you have enabled storm control with the action-shutdown option and you enable port-error-disable, the switch disables (rather than shuts down) the interface when applicable traffic exceeds the specified levels. Alex S (guest) March 11, 2011 at 7:03 p.m. Contact Juniper Support Submit DynamicBooks i Add Multiple Topics to DynamicBooks Add Current Topic to DynamicBooks Related DocumentationEX Seriesaction-shutdownConfiguring MAC Move Limiting (CLI Procedure)MX Seriesaction-shutdownQFabric SystemConfiguring MAC Move Limiting (CLI Procedure)QFX
Network Engineer. May want to look at recovery from the errdisable to happen automatically. In most cases BFD is a more scalable and predictable solution for sub-rate MetroE circuits. Am I still wrong on this?
gadget (guest) March 14, 2011 at 2:55 p.m. did you just shut down the port? UDLD can be run on both fiber optic and twisted-pair copper links. show etherchannel summary—Shows the current status of the EtherChannel.
port-security port-security on switches is very flexible, first show the status of port security Switch#show port-security interface Gi0/19 Port Security : Disabled Port Status : Secure-down Violation Mode : Shutdown Aging https://cjnetworks.wordpress.com/tag/switch-error-disable-auto-recovery/ It really helped me understand UDLD better. SNMPIntro Categories Cisco (47) ASA (2) QoS (3) VPN (4) Juniper (15) Linux (7) NMS Tools (2) Uncategorized (9) Virtual Machine (6) Voice (1) Windows (1) Follow My Blog via Email Switch# udld reset 1 ports shutdown by UDLD were reset.
Possible causes of these types of errors include: A cable that is out of specification (either too long, the wrong type, or defective) A bad network interface card (NIC) card (with navigate here Any further explanation would be helpful .... Your explanation has helped me. brad_fleming March 16, 2011 at 3:24 p.m.
The following commands enable the autorecovery feature 30 seconds after a port security violation:
errdisable recovery cause psecure-violation Determine the Reason for the Errdisabled State To Switch#conf t Enter configuration commands, one per line. Disabling port. %PM-SP-4-ERR_DISABLE: bpduguard error detected on Fi0/1, putting Fi0/1 in err-disable state This message show when a host port receives the (BPDU) bridge protocol data unit. Check This Out Archives October 2011 September 2011 May 2011 April 2011 March 2011 February 2011 November 2010 September 2010 June 2010 May 2010 April 2010 Categories Cisco (53) Juniper (23) Microsoft (29) Net
2960G(config)# errdisable recovery interval 30
The benefit of enabling UDLD on fiber interfaces is obvious. In the case of a violation, Port Security will automatically disable the port. If you set the timeout too low, you may use a lot of CPU because the interface will effectively be flapping.
This is the behaviour of the default port security policy when enabling Port Security. but to we Talk today the way you to activate this port automatic without the intervention of the system administrator. To simulate a unidirectional link I used VACL (deny mac 0100.0ccc.cccc) on one side. UTC Nice article, thumbs up!
To view the Errdisable reasons monitored by the switch, use the show Errdisable detect command: 2960G# show errdisable detect
ErrDisable Reason Detection Mode
----------------- --------- ----
bpduguard Enabled port
channel-misconfig Enabled port
community-limit Enabled UTC thanks ,, for sharing . Thank You! this contact form But i do not know why when it is enabled on both sides of a link between unlike link partners that it only “sometimes” brings a link down as opposed to
Back Products & Services Products & Services Products Identity and Policy Control Network Edge Services Network Management Network Operating System Packet Optical Routers Security Software Defined Networking Switches All Products A-Z Configuration To configure errdisable recovery, you will use exactly that command Switch#conf t Switch(config)#errdisable recovery cause bpduguard Switch(config)# That command will enable recovery for the bpduguard (STP loop) cause. Generally speaking, if they are placing a Cisco ME series Ethernet switch at your site, you'll probably have problems passing UDLD to your remote side. One fiber for Tx and one fiber for Rx.