Pm-4-err_disable Channel-misconfig Stp Error Detected
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%pm-4-err_disable: Bpduguard Error Detected
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Etherchannel Misconfig Guard Is Enabled
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own team of world renowned CCIE instructors and authors, Brian Dennis - Quintuple CCIE #2210, Brian McGahan – Triple CCIE #8593, Petr Lapukhov - Quad CCIE #16379, and Mark Snow - Dual CCIE #14073. Home CCIE Forums Forums » INE Products » CCIE Routing & Switching Lab Workbook Volume I Version 5.0 » Bridging & Switching » task 1.12 %PM-4-ERR_DISABLE: channel-misconfig (STP) error Latest post 07-24-2011 7:57 AM by ToxicAvenginator. 2 replies. Page 1 of 1 (3 items) Sort Posts: https://learningnetwork.cisco.com/thread/52259 Oldest to newest Newest to oldest Previous Next 12-08-2010 9:36 PM dpaq Joined on 01-05-2010 Associate Points 410 task 1.12 %PM-4-ERR_DISABLE: channel-misconfig (STP) error Reply Contact I have had lots of problems with getting these ports to come up! I kept getting these errors %PM-4-ERR_DISABLE: channel-misconfig (STP) error detected on Po13, putting Gi0/17 in err-disable state I am being alerted to theerrors by the following default command spanning-tree etherchannel guard misconfig I concentrated on getting s1-s2 to come together. http://forum.internetworkexpert.com/forums/t/14030.aspx I had configured vlan 1 to be the STP root to complete lab 1.9 - it seems that etherchannel does not like this. I removed this config, re-enabled my port channel on both sides and it came up. Now I thought this was because etherchannel likes everything to be the same and as vlan 1wasSTP root just for vlan 1 andnot the others it might have caused a conflict. I changed the config to make SW1 the root for all vlans but again this caused the etherchannel to go into an error disabled state. Not sure about this! Post Points: 35 07-22-2011 4:05 AM In reply to GoogleStar Joined on 07-22-2011 Associate Points 5 Re: task 1.12 %PM-4-ERR_DISABLE: channel-misconfig (STP) error Reply Contact Are you using fiber interfaces. Perhaps you should try to enable UDLD on the interfaces on both site's of the Ggigabit interfaces. Each switch port that is configured for UDLD sends UDLD protocol packets that contain the port device (or port ID) and the neighbor device (or port IDs) that are seen by UDLD on that port. The neighboring ports must see their own device or port ID (echo) in the packets that are received from the other side. If the port does not see its own device or port ID in the incoming UDLD packets for a specific duration of time, the link is considered unidirectional. Therefore, the respective port is disabled
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