L3 LACP question

[Mehdi.a.majid1]

Hello Guys

I created a simple scenario on a L3 LACP topic and I assigned IPs to both ends and I can do ping from end-to-end but on both of MSWs interfaces are going down and resume to up state and when I turned the debug LACP on I get this messages which I don't get it, appreciate your help on the issue.

MSW1:

Switch#
*Dec 26 15:26:29.328: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:26:29.328: LACP: lacp_send_lacpdu: (Gi0/0) About to send the 110 LACPDU
*Dec 26 15:26:29.329: LACP: lacp_write: LACP 124 bytes out Gi0/0
*Dec 26 15:26:29.488: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:26:29.489: LACP: lacp_send_lacpdu: (Gi0/1) About to send the 110 LACPDU
*Dec 26 15:26:29.490: LACP: lacp_write: LACP 124 bytes out Gi0/1
Switch#
*Dec 26 15:26:41.930: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:26:41.931: LACP: lacp_send_lacpdu: (Gi0/3) About to send the 110 LACPDU
*Dec 26 15:26:41.931: LACP: lacp_write: LACP 124 bytes out Gi0/3
Switch#
*Dec 26 15:26:48.773: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:26:48.774: LACP: lacp_send_lacpdu: (Gi0/2) About to send the 110 LACPDU
*Dec 26 15:26:48.774: LACP: lacp_write: LACP 124 bytes out Gi0/2
Switch#
*Dec 26 15:26:51.755: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:26:51.756: LACP: lacp_send_lacpdu: (Gi0/1) About to send the 110 LACPDU
*Dec 26 15:26:51.757: LACP: lacp_write: LACP 124 bytes out Gi0/1
*Dec 26 15:26:51.759: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:26:51.760: LACP: lacp_send_lacpdu: (Gi0/1) About to send the 110 LACPDU
*Dec 26 15:26:51.761: LACP: lacp_write: LACP 124 bytes out Gi0/1
Switch#
*Dec 26 15:26:52.757: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/1, changed state to down
Switch#
*Dec 26 15:26:55.594: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:26:55.595: LACP: lacp_send_lacpdu: (Gi0/1) About to send the 110 LACPDU
*Dec 26 15:26:55.595: LACP: lacp_write: LACP 124 bytes out Gi0/1
*Dec 26 15:26:56.380: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:26:56.381: LACP: lacp_send_lacpdu: (Gi0/0) About to send the 110 LACPDU
*Dec 26 15:26:56.381: LACP: lacp_write: LACP 124 bytes out Gi0/0
Switch#
*Dec 26 15:27:10.561: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:27:10.562: LACP: lacp_send_lacpdu: (Gi0/3) About to send the 110 LACPDU
*Dec 26 15:27:10.563: LACP: lacp_write: LACP 124 bytes out Gi0/3
Switch#
*Dec 26 15:27:15.532: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:27:15.533: LACP: lacp_send_lacpdu: (Gi0/2) About to send the 110 LACPDU
*Dec 26 15:27:15.534: LACP: lacp_write: LACP 124 bytes out Gi0/2
Switch#
*Dec 26 15:27:24.069: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:27:24.070: LACP: lacp_send_lacpdu: (Gi0/1) About to send the 110 LACPDU
*Dec 26 15:27:24.070: LACP: lacp_write: LACP 124 bytes out Gi0/1
Switch#
*Dec 26 15:27:26.302: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:27:26.303: LACP: lacp_send_lacpdu: (Gi0/0) About to send the 110 LACPDU
*Dec 26 15:27:26.304: LACP: lacp_write: LACP 124 bytes out Gi0/0
Switch#
*Dec 26 15:27:30.640: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:27:30.640: LACP: lacp_send_lacpdu: (Gi0/0) About to send the 110 LACPDU
*Dec 26 15:27:30.641: LACP: lacp_write: LACP 124 bytes out Gi0/0
Switch#
*Dec 26 15:27:31.648: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/0, changed state to up
Switch#
*Dec 26 15:27:34.445: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:27:34.446: LACP: lacp_send_lacpdu: (Gi0/0) About to send the 110 LACPDU
*Dec 26 15:27:34.446: LACP: lacp_write: LACP 124 bytes out Gi0/0
*Dec 26 15:27:34.448: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:27:34.448: LACP: lacp_send_lacpdu: (Gi0/0) About to send the 110 LACPDU
*Dec 26 15:27:34.450: LACP: lacp_write: LACP 124 bytes out Gi0/0
Switch#
*Dec 26 15:27:38.163: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:27:38.163: LACP: lacp_send_lacpdu: (Gi0/3) About to send the 110 LACPDU
*Dec 26 15:27:38.164: LACP: lacp_write: LACP 124 bytes out Gi0/3
Switch#
*Dec 26 15:27:42.025: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:27:42.026: LACP: lacp_send_lacpdu: (Gi0/2) About to send the 110 LACPDU
*Dec 26 15:27:42.027: LACP: lacp_write: LACP 124 bytes out Gi0/2
Switch#
*Dec 26 15:27:49.425: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:27:49.426: LACP: lacp_send_lacpdu: (Gi0/0) About to send the 110 LACPDU
*Dec 26 15:27:49.426: LACP: lacp_write: LACP 124 bytes out Gi0/0
*Dec 26 15:27:49.428: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:27:49.428: LACP: lacp_send_lacpdu: (Gi0/0) About to send the 110 LACPDU
*Dec 26 15:27:49.428: LACP: lacp_write: LACP 124 bytes out Gi0/0
*Dec 26 15:27:50.426: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/0, changed state to down
Switch#
*Dec 26 15:27:51.174: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:27:51.175: LACP: lacp_send_lacpdu: (Gi0/1) About to send the 110 LACPDU
*Dec 26 15:27:51.176: LACP: lacp_write: LACP 124 bytes out Gi0/1
Switch#
*Dec 26 15:27:57.446: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:27:57.447: LACP: lacp_send_lacpdu: (Gi0/0) About to send the 110 LACPDU
*Dec 26 15:27:57.448: LACP: lacp_write: LACP 124 bytes out Gi0/0
Switch#
*Dec 26 15:28:07.140: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:28:07.140: LACP: lacp_send_lacpdu: (Gi0/3) About to send the 110 LACPDU
*Dec 26 15:28:07.141: LACP: lacp_write: LACP 124 bytes out Gi0/3
*Dec 26 15:28:08.015: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:28:08.016: LACP: lacp_send_lacpdu: (Gi0/2) About to send the 110 LACPDU
*Dec 26 15:28:08.016: LACP: lacp_write: LACP 124 bytes out Gi0/2
Switch#
*Dec 26 15:28:10.459: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:28:10.460: LACP: lacp_send_lacpdu: (Gi0/1) About to send the 110 LACPDU
*Dec 26 15:28:10.461: LACP: lacp_write: LACP 124 bytes out Gi0/1
Switch#
*Dec 26 15:28:11.468: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/1, changed state to up
Switch#
*Dec 26 15:28:14.306: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:28:14.307: LACP: lacp_send_lacpdu: (Gi0/1) About to send the 110 LACPDU
*Dec 26 15:28:14.308: LACP: lacp_write: LACP 124 bytes out Gi0/1
*Dec 26 15:28:14.310: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:28:14.311: LACP: lacp_send_lacpdu: (Gi0/1) About to send the 110 LACPDU
*Dec 26 15:28:14.312: LACP: lacp_write: LACP 124 bytes out Gi0/1
Switch#show lacp internal
Flags:  S - Device is requesting Slow LACPDUs
        F - Device is requesting Fast LACPDUs
        A - Device is in Active mode       P - Device is in Passive mode     

Channel group 1
                            LACP port     Admin     Oper    Port        Port
Port      Flags   State     Priority      Key       Key     Number      State
Gi0/0     SA        -       32768         0x1       0x1     0x1         0x5   
Gi0/1     SA      bndl      32768         0x1       0x1     0x2         0x3D  
Gi0/2     SA      bndl      32768         0x1       0x1     0x3         0x3D  
Gi0/3     SA      bndl      32768         0x1       0x1     0x4         0x3D  
Switch#show lacp internal
*Dec 26 15:28:26.958: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:28:26.959: LACP: lacp_send_lacpdu: (Gi0/0) About to send the 110 LACPDU
*Dec 26 15:28:26.959: LACP: lacp_write: LACP 124 bytes out Gi0/0
Switch#ping 192.168.0.10
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.0.10, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 2/5/15 ms
Switch#
*Dec 26 15:28:35.867: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:28:35.867: LACP: lacp_send_lacpdu: (Gi0/2) About to send the 110 LACPDU
*Dec 26 15:28:35.867: LACP: lacp_write: LACP 124 bytes out Gi0/2
*Dec 26 15:28:36.513: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:28:36.513: LACP: lacp_send_lacpdu: (Gi0/3) About to send the 110 LACPDU
*Dec 26 15:28:36.514: LACP: lacp_write: LACP 124 bytes out Gi0/3
Switch#
*Dec 26 15:28:39.779: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:28:39.779: LACP: lacp_send_lacpdu: (Gi0/1) About to send the 110 LACPDU
*Dec 26 15:28:39.780: LACP: lacp_write: LACP 124 bytes out Gi0/1
Switch#

MSW2:

*Dec 26 15:27:24.603: LACP: lacp_write: LACP 124 bytes out Gi0/3
*Dec 26 15:27:25.248: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:27:25.248: LACP: lacp_send_lacpdu: (Gi0/1) About to send the 110 LACPDU
*Dec 26 15:27:25.249: LACP: lacp_write: LACP 124 bytes out Gi0/1
Switch>
*Dec 26 15:27:28.564: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:27:28.565: LACP: lacp_send_lacpdu: (Gi0/2) About to send the 110 LACPDU
*Dec 26 15:27:28.565: LACP: lacp_write: LACP 124 bytes out Gi0/2
Switch>
*Dec 26 15:27:38.188: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:27:38.189: LACP: lacp_send_lacpdu: (Gi0/0) About to send the 110 LACPDU
*Dec 26 15:27:38.190: LACP: lacp_write: LACP 124 bytes out Gi0/0
*Dec 26 15:27:38.228: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:27:38.229: LACP: lacp_send_lacpdu: (Gi0/0) About to send the 110 LACPDU
*Dec 26 15:27:38.230: LACP: lacp_write: LACP 124 bytes out Gi0/0
Switch>
*Dec 26 15:27:42.043: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:27:42.043: LACP: lacp_send_lacpdu: (Gi0/0) About to send the 110 LACPDU
*Dec 26 15:27:42.045: LACP: lacp_write: LACP 124 bytes out Gi0/0
*Dec 26 15:27:43.044: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/0, changed state to up
Switch>
*Dec 26 15:27:51.069: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:27:51.070: LACP: lacp_send_lacpdu: (Gi0/3) About to send the 110 LACPDU
*Dec 26 15:27:51.071: LACP: lacp_write: LACP 124 bytes out Gi0/3
Switch>
*Dec 26 15:27:52.092: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:27:52.092: LACP: lacp_send_lacpdu: (Gi0/1) About to send the 110 LACPDU
*Dec 26 15:27:52.093: LACP: lacp_write: LACP 124 bytes out Gi0/1
Switch>
*Dec 26 15:27:57.010: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:27:57.011: LACP: lacp_send_lacpdu: (Gi0/2) About to send the 110 LACPDU
*Dec 26 15:27:57.011: LACP: lacp_write: LACP 124 bytes out Gi0/2
*Dec 26 15:27:57.029: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:27:57.030: LACP: lacp_send_lacpdu: (Gi0/0) About to send the 110 LACPDU
*Dec 26 15:27:57.031: LACP: lacp_write: LACP 124 bytes out Gi0/0
Switch>
*Dec 26 15:27:58.028: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/0, changed state to down
Switch>
*Dec 26 15:28:04.339: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:28:04.340: LACP: lacp_send_lacpdu: (Gi0/0) About to send the 110 LACPDU
*Dec 26 15:28:04.340: LACP: lacp_write: LACP 124 bytes out Gi0/0
Switch>en
Switch#
*Dec 26 15:28:18.085: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:28:18.086: LACP: lacp_send_lacpdu: (Gi0/1) About to send the 110 LACPDU
*Dec 26 15:28:18.086: LACP: lacp_write: LACP 124 bytes out Gi0/1
*Dec 26 15:28:18.275: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:28:18.275: LACP: lacp_send_lacpdu: (Gi0/3) About to send the 110 LACPDU
*Dec 26 15:28:18.276: LACP: lacp_write: LACP 124 bytes out Gi0/3
Switch#
*Dec 26 15:28:20.970: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:28:20.971: LACP: lacp_send_lacpdu: (Gi0/1) About to send the 110 LACPDU
*Dec 26 15:28:20.971: LACP: lacp_write: LACP 124 bytes out Gi0/1
*Dec 26 15:28:21.934: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:28:21.935: LACP: lacp_send_lacpdu: (Gi0/1) About to send the 110 LACPDU
*Dec 26 15:28:21.935: LACP: lacp_write: LACP 124 bytes out Gi0/1
Switch#
*Dec 26 15:28:22.934: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/1, changed state to up
Switch#
*Dec 26 15:28:24.539: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:28:24.540: LACP: lacp_send_lacpdu: (Gi0/2) About to send the 110 LACPDU
*Dec 26 15:28:24.541: LACP: lacp_write: LACP 124 bytes out Gi0/2
Switch#
*Dec 26 15:28:31.615: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:28:31.616: LACP: lacp_send_lacpdu: (Gi0/0) About to send the 110 LACPDU
*Dec 26 15:28:31.616: LACP: lacp_write: LACP 124 bytes out Gi0/0
Switch#
*Dec 26 15:28:47.794: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:28:47.795: LACP: lacp_send_lacpdu: (Gi0/3) About to send the 110 LACPDU
*Dec 26 15:28:47.796: LACP: lacp_write: LACP 124 bytes out Gi0/3
Switch#
*Dec 26 15:28:49.803: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:28:49.803: LACP: lacp_send_lacpdu: (Gi0/1) About to send the 110 LACPDU
*Dec 26 15:28:49.804: LACP: lacp_write: LACP 124 bytes out Gi0/1
Switch#
*Dec 26 15:28:52.011: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:28:52.012: LACP: lacp_send_lacpdu: (Gi0/2) About to send the 110 LACPDU
*Dec 26 15:28:52.013: LACP: lacp_write: LACP 124 bytes out Gi0/2
Switch#
*Dec 26 15:29:00.695: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:29:00.695: LACP: lacp_send_lacpdu: (Gi0/0) About to send the 110 LACPDU
*Dec 26 15:29:00.696: LACP: lacp_write: LACP 124 bytes out Gi0/0
Switch#
*Dec 26 15:29:02.163: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:29:02.163: LACP: lacp_send_lacpdu: (Gi0/0) About to send the 110 LACPDU
*Dec 26 15:29:02.163: LACP: lacp_write: LACP 124 bytes out Gi0/0
Switch#
*Dec 26 15:29:05.760: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:29:05.761: LACP: lacp_send_lacpdu: (Gi0/0) About to send the 110 LACPDU
*Dec 26 15:29:05.762: LACP: lacp_write: LACP 124 bytes out Gi0/0
Switch#
*Dec 26 15:29:06.760: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/0, changed state to up
Switch#show lacp in
*Dec 26 15:29:16.971: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:29:16.971: LACP: lacp_send_lacpdu: (Gi0/1) About to send the 110 LACPDU
*Dec 26 15:29:16.972: LACP: lacp_write: LACP 124 bytes out Gi0/1
*Dec 26 15:29:17.393: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:29:17.394: LACP: lacp_send_lacpdu: (Gi0/3) About to send the 110 LACPDU
*Dec 26 15:29:17.395: LACP: lacp_write: LACP 124 bytes out Gi0/3
Switch#show lacp internal
Flags:  S - Device is requesting Slow LACPDUs
        F - Device is requesting Fast LACPDUs
        A - Device is in Active mode       P - Device is in Passive mode     

Channel group 1
                            LACP port     Admin     Oper    Port        Port
Port      Flags   State     Priority      Key       Key     Number      State
Gi0/0     SA      bndl      32768         0x1       0x1     0x1         0x3D  
Gi0/1     SA      bndl      32768         0x1       0x1     0x2         0x3D  
Gi0/2     SA      bndl      32768         0x1       0x1     0x3         0x3D  
Gi0/3     SA      bndl      32768         0x1       0x1     0x4         0x3D  
Switch#
*Dec 26 15:29:19.975: LACP: lacp_insert_partner_cd_inhibitor: didn't change sync flag.
*Dec 26 15:29:19.976: LACP: lacp_send_lacpdu: (Gi0/2) About to send the 110 LACPDU
*Dec 26 15:29:19.977: LACP: lacp_write: LACP 124 bytes out Gi0/2
Switch#ping 192.168.0.10
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.0.10, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/2/6 ms
Switch#