If you are running a LACP bundle, and the other end is not a Cisco piece of gear, and the error only happens when more than one link is up, then what is happening is, the far end is sending BPDUs on more than one member of the LACP bundle. Cisco gear does not expect this and will shut the entire Port-channel. To make it stop doing that, do this in config mode:
no spanning-tree etherchannel guard misconfig -- Hunter Fuller Network Engineer VBRH Annex B-1 +1 256 824 5331 Office of Information Technology The University of Alabama in Huntsville Systems and Infrastructure On Tue, Jul 12, 2016 at 1:41 PM, Olivier CALVANO <[email protected]> wrote: > Hi > > i have a big problems with one cisco 3750 : > > > Jul 12 17:30:36.218: %PM-4-ERR_DISABLE: channel-misconfig error detected on > Gi1/0/1, putting Gi1/0/1 in err-disable state > Jul 12 17:30:36.856: %PM-4-ERR_DISABLE: channel-misconfig error detected on > Po1, putting Gi1/0/1 in err-disable state > Jul 12 17:30:36.856: %PM-4-ERR_DISABLE: channel-misconfig error detected on > Po1, putting Po1 in err-disable state > > > The port is in err-disable regularly .. a shut and no shut that's restart > > > > C3750#sh errdisable detect > ErrDisable Reason Detection Mode > ----------------- --------- ---- > arp-inspection Enabled port > bpduguard Enabled port > channel-misconfig Enabled port > community-limit Enabled port > dhcp-rate-limit Enabled port > dtp-flap Enabled port > gbic-invalid Disabled > inline-power Enabled port > invalid-policy Enabled port > l2ptguard Enabled port > link-flap Enabled port > loopback Enabled port > lsgroup Enabled port > mac-limit Enabled port > pagp-flap Enabled port > port-mode-failure Enabled port > psecure-violation Enabled port/vlan > security-violation Enabled port > sfp-config-mismatch Enabled port > small-frame Enabled port > storm-control Enabled port > udld Enabled port > vmps Enabled port > > > there is a solution to disable the errdisable on this type of switch? > _______________________________________________ > cisco-nsp mailing list [email protected] > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
