From: Tony Schaffran (groupstudy@cconlinelabs.com)
Date: Sun Jul 29 2007 - 02:03:02 ART
Please provide the running config of each switch.
Without the actual running config, we are just speculating.
Tony Schaffran
Network Analyst
CCIE #11071
CCNP, CCNA, CCDA,
NNCDS, NNCSS, CNE, MCSE
www.cconlinelabs.com
Your #1 choice for online Cisco rack rentals.
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Djerk Geurts
Sent: Saturday, July 28, 2007 1:00 PM
To: 'Cisco certification'
Subject: Etherchannel & err-disable
I have a 3750 and a 355 and when bringing up an etherchannel I get the
following on the 3550:
1d21h: %PM-4-ERR_DISABLE: channel-misconfig error detected on Fa0/23,
putting Fa0/23 in err-disable state
Same config between a 3550 and 3750 is fine. 3548 - 3750 is fine as well as
is 3548 - 3550. Actually all options between all 4 switches work but this
one.
Port and eth-chan config:
interface FastEthernet0/22
description *** C3750-ME F1/0/22 ***
switchport trunk encapsulation isl
switchport mode trunk
channel-group 5 mode on
End
interface Port-channel5
description *** C3750 Po5 ***
switchport trunk encapsulation isl
switchport mode trunk
end
Switchport mode has no influence, port-security is off on both sides. What
is casusing this and how can I troubleshoot this? A debug etherchannel
doesn't display anything related at all, other than the message listed
above.
So far I've seen it happen when one side is configured for etherchannel and
the other side isn't but a shut no-shut helps things along nicely once both
sides are configured for etherchannel propperly. But this time it doesn't...
Any help appreciated.
Regards,
-- Djerk Geurts | Senior R&D Engineer | Easynet T +31 (0)20 798 98 84 | F +31 (0)20 798 98 99 | www.easynet.com Karspeldreef 14 | 1101 CK Amsterdam | The Netherlands mailto:djerk.geurts@nl.easynet.netPlease consider the environment before printing this e-mail.
This archive was generated by hypermail 2.1.4 : Sat Aug 18 2007 - 08:17:42 ART