error detects on Gi3/8

Unanswered Question
Jun 27th, 2008

Hi people,


I was getting errors on one of the switch port Gi3/8


And I verified the logs found it's relates mac-address mismatch.


MESSAGE INFO : Jun 26 20:11:43 GMT: %PM-SP-STDBY-4-ERR_DISABLE: link-flap error detected on Gi3/8, putting Gi3/8 in err-disable state


Jun 25 20:41:57 GMT: %DHCP_SNOOPING-5-DHCP_SNOOPING_MATCH_MAC_FAIL: DHCP_SNOOPING drop message because the chaddr doesn't match source mac, message type: DHCPRELEASE, chaddr: 001c.bf8b.9f05, MAC sa: 001c.2346.a21f

Jun 26 12:22:54 GMT: %DHCP_SNOOPING-5-DHCP_SNOOPING_MATCH_MAC_FAIL: DHCP_SNOOPING drop message because the chaddr doesn't match source mac, message type: DHCPREQUEST, chaddr: 001f.3c58.a62e, MAC sa: 001c.2355.8794

Jun 26 17:16:44 GMT: %DHCP_SNOOPING-5-DHCP_SNOOPING_MATCH_MAC_FAIL: DHCP_SNOOPING drop message because the chaddr doesn't match source mac, message type: DHCPREQUEST, chaddr: 001b.7767.73ab, MAC sa: 001c.2300.ee40

Jun 26 19:25:17 GMT: %DHCP_SNOOPING-5-DHCP_SNOOPING_MATCH_MAC_FAIL: DHCP_SNOOPING drop message because the chaddr doesn't match source mac, message type: DHCPREQUEST, chaddr: 0018.de99.bd06, MAC sa: 0018.8ba5.f726

Jun 26 20:04:41 GMT: %DHCP_SNOOPING-5-DHCP_SNOOPING_MATCH_MAC_FAIL: DHCP_SNOOPING drop message because the chaddr doesn't match source mac, message type: DHCPRELEASE, chaddr: 001c.bf8b.9f05, MAC sa: 001c.2346.a21f

Jun 26 20:11:43 GMT: %PM-SP-4-ERR_DISABLE: link-flap error detected on Gi3/8, putting Gi3/8 in err-disable state

Jun 26 20:11:43 GMT: %PM-SP-STDBY-4-ERR_DISABLE: link-flap error detected on Gi3/8, putting Gi3/8 in err-disable state

Jun 26 20:16:43 GMT: %PM-SP-4-ERR_RECOVER: Attempting to recover from link-flap err-disable state on Gi3/8

Jun 26 20:16:43 GMT: %PM-SP-STDBY-4-ERR_RECOVER: Attempting to recover from link-flap err-disable state on Gi3/8

Jun 26 20:18:03 GMT: %PM-SP-4-ERR_DISABLE: link-flap error detected on Gi3/8, putting Gi3/8 in err-disable state

Jun 26 20:18:03 GMT: %PM-SP-STDBY-4-ERR_DISABLE: link-flap error detected on Gi3/8, putting Gi3/8 in err-disable state

Jun 26 20:23:03 GMT: %PM-SP-4-ERR_RECOVER: Attempting to recover from link-flap err-disable state on Gi3/8

Jun 26 20:23:03 GMT: %PM-SP-STDBY-4-ERR_RECOVER: Attempting to recover from link-flap err-disable state on Gi3/8

Jun 26 20:24:42 GMT: %PM-SP-4-ERR_DISABLE: link-flap error detected on Gi3/8, putting Gi3/8 in err-disable state



Guys can somebody give quick response on this.



Regards,

Naidu.

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glen.grant Sat, 06/28/2008 - 04:00

Its exactly what it says the port is flapping . check for bad patches , house cable and speed/duplex mismatches, faulty nic card. The switch is temporarliy err-disabling port due to this condition.

ilnaiduccna Sat, 06/28/2008 - 17:48


Hi glen,


Thanks for the early reply.


Yes the port is flapping agreed is it cause by bad patches or duplex/speed mismatch or faulty nic?


jus small doubts here.


bad patches means patch cards am i right?

house cable means what?

faulty nic card in host or?



Thanks in advance.



Regards,

Naidu.

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