PROBLEM SOLVED: I added the keyword "non-silent" on the 3550 in the line
"channel-group 13 mode auto non-silent" Thanks for the suggestions though, Pierre-Alex ---------- Original Message ---------------------------------- From: "Jonathan V Hays" Reply-To: "Jonathan V Hays" Date: Wed, 23 Jul 2003 14:46:18 -0400 Have you verified that it is an etherchannel problem and not a link problem or a cable problem? Remove the etherchannel stuff on both ends and verify each of the 3550-1912 links is stable. Have you seen this? I have excerpted part of it below. http://www.cisco.com/univercd/cc/td/doc/product/lan/28201900/1928v9x/ee_ scg/2addlfet.htm#xtocid11611 Fast EtherChannel Example This example shows how to enable the Fast EtherChannel feature in desirable mode, specifies port 27 or port B as the template port for member-port configuration, and configures the hot-standby port priority of Fast Ethernet port B to 100. switch(config)# port-channel mode desirable switch(config)# port-channel template port fastethernet 0/27 switch(config)# interface fastethernet 0/27 switch(config-if)# pagp-port-priority 100 -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of pierreg Sent: Wednesday, July 23, 2003 2:25 PM To: [EMAIL PROTECTED] Subject: Link flapping PagP 3550 and 1912 frozen A- Situation: I am using a 3550 and a 1912 to do PAgp. B- The problem: flapping links on the 3550, frozen 1912 (1) Cat3550# 09:43:40: PAgP: Fa0/1 is coming Up 09:43:40: PAgP: Fa0/2 is coming Up 09:43:42: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to up 09:43:42: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to up Cat3550# 09:43:43: PAgP - Fa0/1 failed - not my device_id. 0000.0000.0000 000a.8aac.b100 09:43:43: PAgP - Fa0/2 failed - not my device_id. 0000.0000.0000 000a.8aac.b100 09:43:44: PAgP - Fa0/1 failed - not my device_id. 0000.0000.0000 000a.8aac.b100 09:43:44: PAgP - Fa0/2 failed - not my device_id. 0000.0000.0000 000a.8aac.b100 09:43:45: PAgP - Fa0/1 failed - not my device_id. 0000.0000.0000 000a.8aac.b100 Cat3550# 09:43:45: PAgP - Fa0/2 failed - not my device_id. 0000.0000.0000 000a.8aac.b100 09:43:48: PAgP: Fa0/1 action_a7 is entered 09:43:48: PAgP: Fa0/2 action_a7 is entered 09:43:49: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up 09:43:49: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to up 09:43:50: %LINK-3-UPDOWN: Interface Port-channel13, changed state to up 09:43:51: %LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel13, changed state to up 9:44:18: PAgP: Fa0/1 is going Down 09:44:18: PAgP: Fa0/1 action_a1 is entered 09:44:18: PAgP: Fa0/2 is going Down 09:44:18: PAgP: Fa0/2 action_a1 is entered 09:44:19: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to down 09:44:19: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/2, changed state to down 09:44:19: %LINEPROTO-5-UPDOWN: Line protocol on Interface Port-channel13, changed state to down 09:44:20: %LINK-3-UPDOWN: Interface FastEthernet0/1, changed state to down 09:44:20: %LINK-3-UPDOWN: Interface FastEthernet0/2, changed state to down (2) As soon as the pagp negotiation starts, the 1912 is unaccessible and the only way to get to it is to shut down the port on the 3550. When this is done the switch is still unaccessible for another 30 seconds. C- The configurations ====================== The 3550 ====================== ........... ! interface Port-channel13 switchport access vlan 13 switchport mode access no ip address ! interface FastEthernet0/1 switchport access vlan 13 switchport mode access no ip address shutdown duplex full speed 100 pagp learn-method physical-port channel-group 13 mode auto ! interface FastEthernet0/2 switchport access vlan 13 switchport mode access no ip address shutdown duplex full speed 100 pagp learn-method physical-port channel-group 13 mode auto ! ................. --------------- The 1912 ------------------- Cat1912#sh run Building configuration... Current configuration: ! ! port-channel preserve-order port-channel mode desirable ........... interface FastEthernet 0/26 duplex full ! ! vlan-membership static 13 ! interface FastEthernet 0/27 duplex full ! ! vlan-membership static 13 ! line console - Any suggestions? Pierre-Alex ========================= _______________________________________________________________________ You are subscribed to the GroupStudy.com CCIE R&S Discussion Group. Subscription information may be found at: http://www.groupstudy.com/list/CCIELab.html _______________________________________________________________________ You are subscribed to the GroupStudy.com CCIE R&S Discussion Group. Subscription information may be found at: http://www.groupstudy.com/list/CCIELab.html _______________________________________________________________________ You are subscribed to the GroupStudy.com CCIE R&S Discussion Group. Subscription information may be found at: http://www.groupstudy.com/list/CCIELab.html Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=72854&t=72854 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
