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August 16th, 2017 14:00
Dell Switch N2048P Flapping ports
I need some help on troubleshooting a couple flapping ports. I have had this happen with a computer and also a phone that had a printer plugged into it.
<190> Aug 16 13:24:27 Back Office network-1 CLI_WEB[emWeb]: cmd_logger_api.c(260 ) 6699526 %% [CLI:it1admin:10.11.5.48] User it1admin logged in to enable mode.
<190> Aug 16 13:24:22 Back Office network-1 CLI_WEB[emWeb]: cmd_logger_api.c(260 ) 6699525 %% [CLI:it1admin:10.11.5.48] User has succesfully logged in
<189> Aug 16 13:11:50 Back Office network-1 TRAPMGR[LOG]: traputil.c(777) 669952 3 %% Email Send Failed!No of Email sends Failed So far= 22009
<190> Aug 16 12:53:22 Back Office network-1 CLI_WEB[emWeb]: cmd_logger_api.c(260 ) 6699522 %% [WEB:it1admin:10.11.5.48] Disconnected due to Idle Timeout
<190> Aug 16 12:46:03 Back Office network-1 SIM[emWeb]: usmdb_util.c(5772) 66995 20 %% System time is changed from 12:46:3 8/16/2017 to 12:46:3 8/16/2017
<190> Aug 16 12:46:03 Back Office network-1 SIM[emWeb]: usmdb_util.c(5772) 66995 19 %% System time is changed from 12:46:3 8/16/2017 to 12:46:3 8/16/2017
<190> Aug 16 12:46:03 Back Office network-1 SIM[emWeb]: usmdb_util.c(5772) 66995 18 %% System time is changed from 12:46:3 8/16/2017 to 12:46:3 8/16/2017
<190> Aug 16 12:46:06 Back Office network-1 SIM[emWeb]: usmdb_util.c(5772) 66995 17 %% System time is changed from 12:46:6 8/16/2017 to 12:46:3 8/16/2017
<189> Aug 16 12:41:30 Back Office network-1 TRAPMGR[LOG]: traputil.c(777) 669951 6 %% Email Send Failed!No of Email sends Failed So far= 22008
<190> Aug 16 12:40:08 Back Office network-1 CLI_WEB[emWeb]: cmd_logger_api.c(260 ) 6699515 %% [WEB:it1admin:10.11.5.48] User has succesfully logged in
<190> Aug 16 12:37:32 Back Office network-1 CLI_WEB[UtilTask]: cmd_logger_api.c( 260) 6699514 %% [CLI:it1admin:10.11.5.48] Disconnected due to Idle Timeout
<190> Aug 16 12:31:51 Back Office network-1 CLI_WEB[emWeb]: cmd_logger_api.c(260 ) 6699513 %% [WEB:it1admin:10.11.5.48] Disconnected due to Idle Timeout
<190> Aug 16 12:28:33 Back Office network-1 CLI_WEB[emWeb]: cmd_logger_api.c(260 ) 6699512 %% [WEB:it1admin:10.11.5.48] User has succesfully logged in
<190> Aug 16 12:27:04 Back Office network-1 CLI_WEB[emWeb]: cmd_logger_api.c(260 ) 6699511 %% [CLI:it1admin:10.11.5.48] User it1admin logged in to enable mode.
<190> Aug 16 12:27:01 Back Office network-1 CLI_WEB[emWeb]: cmd_logger_api.c(260 ) 6699510 %% [CLI:it1admin:10.11.5.48] User has succesfully logged in
<189> Aug 16 12:11:24 Back Office network-1 TRAPMGR[LOG]: traputil.c(777) 669950 9 %% Email Send Failed!No of Email sends Failed So far= 22007
<189> Aug 16 11:41:19 Back Office network-1 TRAPMGR[LOG]: traputil.c(777) 669950 8 %% Email Send Failed!No of Email sends Failed So far= 22006
<190> Aug 16 11:12:31 Back Office network-1 CLI_WEB[emWeb]: cmd_logger_api.c(260 ) 6699507 %% [WEB:it1admin:10.11.5.48] Disconnected due to Idle Timeout
<189> Aug 16 11:11:13 Back Office network-1 TRAPMGR[LOG]: traputil.c(777) 669950 6 %% Email Send Failed!No of Email sends Failed So far= 22005
<190> Aug 16 11:06:55 Back Office network-1 CLI_WEB[emWeb]: cmd_logger_api.c(260 ) 6699505 %% [WEB:it1admin:10.11.5.48] User has succesfully logged in
<190> Aug 16 11:06:33 Back Office network-1 CLI_WEB[emWeb]: cmd_logger_api.c(260 ) 6699504 %% [WEB:it1admin:10.11.5.48] Disconnected due to Idle Timeout
<184> Aug 16 11:03:30 Back Office network-1 CLI_WEB[emWeb]: fpobj_baselogemailAl ertCfg.c(549) 6699503 %% test
<190> Aug 16 11:02:42 Back Office network-1 CLI_WEB[emWeb]: cmd_logger_api.c(260 ) 6699502 %% [WEB:it1admin:10.11.5.48] User has succesfully logged in
<189> Aug 16 10:41:08 Back Office network-1 TRAPMGR[LOG]: traputil.c(777) 669950 1 %% Email Send Failed!No of Email sends Failed So far= 22004
<189> Aug 16 10:11:01 Back Office network-1 TRAPMGR[LOG]: traputil.c(777) 669950 0 %% Email Send Failed!No of Email sends Failed So far= 22003
<190> Aug 16 09:52:01 Back Office network-1 CLI_WEB[emWeb]: cmd_logger_api.c(260 ) 6699499 %% [WEB:it1admin:10.11.5.48] Disconnected due to Idle Timeout
<190> Aug 16 09:48:52 Back Office network-1 CLI_WEB[emWeb]: cmd_logger_api.c(260 ) 6699498 %% [WEB:it1admin:10.11.5.48] User has succesfully logged in
<189> Aug 16 09:40:56 Back Office network-1 TRAPMGR[LOG]: traputil.c(777) 669949 7 %% Email Send Failed!No of Email sends Failed So far= 22002
<189> Aug 16 09:32:21 Back Office network-1 TRAPMGR[trapTask]: traputil.c(735) 6 699496 %% Gi1/0/2 is transitioned from the Learning state to the Forwarding stat e in instance 0
<189> Aug 16 09:32:18 Back Office network-1 TRAPMGR[trapTask]: traputil.c(735) 6 699495 %% Gi1/0/2 is transitioned from the Forwarding state to the Blocking stat e in instance 0
<189> Aug 16 09:32:18 Back Office network-1 TRAPMGR[trapTask]: traputil.c(735) 6 699494 %% Link Up: Gi1/0/2
<189> Aug 16 09:32:15 Back Office network-1 TRAPMGR[trapTask]: traputil.c(735) 6 699493 %% Gi1/0/2 is transitioned from the Forwarding state to the Blocking stat e in instance 0
<189> Aug 16 09:32:15 Back Office network-1 TRAPMGR[trapTask]: traputil.c(735) 6 699492 %% Link on Gi1/0/2 is failed
<189> Aug 16 09:32:15 Back Office network-1 TRAPMGR[trapTask]: traputil.c(735) 6 699491 %% Link Down: Gi1/0/2
<189> Aug 16 09:32:14 Back Office network-1 TRAPMGR[trapTask]: traputil.c(735) 6 699490 %% Gi1/0/2 is transitioned from the Learning state to the Forwarding stat e in instance 0
<189> Aug 16 09:32:11 Back Office network-1 TRAPMGR[trapTask]: traputil.c(735) 6 699489 %% Gi1/0/2 is transitioned from the Forwarding state to the Blocking stat e in instance 0
<189> Aug 16 09:32:11 Back Office network-1 TRAPMGR[trapTask]: traputil.c(735) 6 699488 %% Link Up: Gi1/0/2
<189> Aug 16 09:32:03 Back Office network-1 TRAPMGR[trapTask]: traputil.c(735) 6 699487 %% Gi1/0/2 is transitioned from the Forwarding state to the Blocking stat e in instance 0
<189> Aug 16 09:32:03 Back Office network-1 TRAPMGR[trapTask]: traputil.c(735) 6 699486 %% Link on Gi1/0/2 is failed
<189> Aug 16 09:32:03 Back Office network-1 TRAPMGR[trapTask]: traputil.c(735) 6 699485 %% Link Down: Gi1/0/2
<189> Aug 16 09:10:50 Back Office network-1 TRAPMGR[LOG]: traputil.c(777) 669948 4 %% Email Send Failed!No of Email sends Failed So far= 22001
<190> Aug 16 08:42:44 Back Office network-1 CLI_WEB[emWeb]: cmd_logger_api.c(260 ) 6699483 %% [WEB:it1admin:10.11.5.48] Disconnected due to Idle Timeout
<189> Aug 16 08:40:45 Back Office network-1 TRAPMGR[LOG]: traputil.c(777) 669948 2 %% Email Send Failed!No of Email sends Failed So far= 22000
<190> Aug 16 08:38:01 Back Office network-1 CLI_WEB[emWeb]: cmd_logger_api.c(260 ) 6699481 %% [WEB:it1admin:10.11.5.48] User has succesfully logged in
<190> Aug 16 08:31:00 Back Office network-1 CLI_WEB[emWeb]: cmd_logger_api.c(260 ) 6699480 %% [WEB:it1admin:10.11.5.48] Disconnected due to Idle Timeout
<190> Aug 16 08:27:51 Back Office network-1 CLI_WEB[emWeb]: cmd_logger_api.c(260 ) 6699479 %% [WEB:it1admin:10.11.5.48] User has succesfully logged in
<190> Aug 16 08:17:14 Back Office network-1 CLI_WEB[emWeb]: cmd_logger_api.c(260 ) 6699478 %% [WEB:it1admin:10.11.5.48] Disconnected due to Idle Timeout
<190> Aug 16 08:13:10 Back Office network-1 CLI_WEB[emWeb]: cmd_logger_api.c(260 ) 6699477 %% [CLI:it1admin:10.11.5.48] User it1admin logged in to enable mode.
<189> Aug 16 08:12:59 Back Office network-1 TRAPMGR[emWeb]: traputil.c(777) 6699 476 %% Failed User Login with User ID: it1admin
<190> Aug 16 08:12:59 Back Office network-1 USER_MGR[emWeb]: user_mgr.c(1793) 66 99475 %% User it1admin Failed to login because of authentication failures
<190> Aug 16 08:12:46 Back Office network-1 CLI_WEB[emWeb]: cmd_logger_api.c(260 ) 6699474 %% [CLI:it1admin:10.11.5.48] User has succesfully logged in
<189> Aug 16 08:10:39 Back Office network-1 TRAPMGR[LOG]: traputil.c(777) 669947 3 %% Email Send Failed!No of Email sends Failed So far= 21999
<190> Aug 16 08:09:01 Back Office network-1 VOIP[emWeb]: voip_api.c(139) 6699472 %% Interface [ifName not found(0)] not configurable.
<190> Aug 16 08:09:01 Back Office network-1 VOIP[emWeb]: voip_api.c(139) 6699471 %% Interface [ifName not found(0)] not configurable.
<190> Aug 16 08:08:53 Back Office network-1 VOIP[emWeb]: voip_api.c(139) 6699470 %% Interface [ifName not found(0)] not configurable.
<190> Aug 16 08:08:53 Back Office network-1 VOIP[emWeb]: voip_api.c(139) 6699469 %% Interface [ifName not found(0)] not configurable.
<190> Aug 16 08:00:41 Back Office network-1 CLI_WEB[emWeb]: cmd_logger_api.c(260 ) 6699468 %% [WEB:it1admin:10.11.5.48] User has succesfully logged in
<190> Aug 16 08:00:27 Back Office network-1 CLI_WEB[emWeb]: cmd_logger_api.c(260 ) 6699467 %% [WEB:it1admin:10.11.5.48] Disconnected due to Idle Timeout
<190> Aug 16 07:57:24 Back Office network-1 CLI_WEB[emWeb]: cmd_logger_api.c(260 ) 6699466 %% [WEB:it1admin:10.11.5.48] User has succesfully logged in
<190> Aug 16 07:56:53 Back Office network-1 CLI_WEB[emWeb]: cmd_logger_api.c(260 ) 6699465 %% [WEB:it1admin:10.11.5.48] Disconnected due to Idle Timeout
<190> Aug 16 07:53:41 Back Office network-1 CLI_WEB[emWeb]: cmd_logger_api.c(260 ) 6699464 %% [WEB:it1admin:10.11.5.48] User has succesfully logged in
<189> Aug 16 07:40:34 Back Office network-1 TRAPMGR[LOG]: traputil.c(777) 669946 3 %% Email Send Failed!No of Email sends Failed So far= 21998
<189> Aug 16 07:12:17 Back Office network-1 TRAPMGR[trapTask]: traputil.c(735) 6 699462 %% Gi1/0/7 is transitioned from the Learning state to the Forwarding stat e in instance 0
<189> Aug 16 07:12:14 Back Office network-1 TRAPMGR[trapTask]: traputil.c(735) 6 699461 %% Gi1/0/7 is transitioned from the Forwarding state to the Blocking stat e in instance 0
<189> Aug 16 07:12:14 Back Office network-1 TRAPMGR[trapTask]: traputil.c(735) 6 699460 %% Link Up: Gi1/0/7
<189> Aug 16 07:12:02 Back Office network-1 TRAPMGR[trapTask]: traputil.c(735) 6 699459 %% Gi1/0/7 is transitioned from the Forwarding state to the Blocking stat e in instance 0
<189> Aug 16 07:12:02 Back Office network-1 TRAPMGR[trapTask]: traputil.c(735) 6 699458 %% Link on Gi1/0/7 is failed
<189> Aug 16 07:12:02 Back Office network-1 TRAPMGR[trapTask]: traputil.c(735) 6 699457 %% Link Down: Gi1/0/7
<189> Aug 16 07:10:27 Back Office network-1 TRAPMGR[LOG]: traputil.c(777) 669945 6 %%
DELL-Josh Cr
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August 16th, 2017 18:00
Hi,
Are there other switches on the network? It looks like there is a change in spanning tree and it is switching ports from blocking to forwarding and back to blocking. Is the firmware up to date? If multiple ports are doing it with various devices it probably is not a port or device that is causing it.
vt1012
212 Posts
0
August 21st, 2017 15:00
I second Josh's suggestion that is seems like a spanning tree issue. Another place to look is duplicate IP addresses. To check for this, record the IP address of the flapping port, then unplug the flapping port from the network. Go to another system on the network and ping the recorded address to see if it responds. I have seen identical IP addresses constantly battling it out on the network, toggling network access back and forth causing similar flapping.
-B