3750 Error Message

Unanswered Question
Sep 5th, 2008
User Badges:

Hi


i have cisco 3750 Switch.nothing configured.in Console the following error message displayed


00:58:30: %SW_MATM-4-MACFLAP_NOTIF: Host 0201.0000.0000 in vlan 1 is flapping be

tween port Gi1/0/2 and port Gi1/0/10

WS3750#

00:58:42: %SW_MATM-4-MACFLAP_NOTIF: Host 0201.0000.0000 in vlan 1 is flapping be

tween port Gi1/0/3 and port Gi1/0/24

WS3750#

00:59:00: %SW_MATM-4-MACFLAP_NOTIF: Host 0201.0000.0000 in vlan 1 is flapping be

tween port Gi1/0/2 and port Gi1/0/10

WS3750#

00:59:12: %SW_MATM-4-MACFLAP_NOTIF: Host 0201.0000.0000 in vlan 1 is flapping be

tween port Gi1/0/3 and port Gi1/0/24

WS3750#

00:59:30: %SW_MATM-4-MACFLAP_NOTIF: Host 0201.0000.0000 in vlan 1 is flapping be

tween port Gi1/0/2 and port Gi1/0/10



Please help me to resolve this issue


regs


S.Mohana sundaram


  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
Loading.
massimiliano.se... Fri, 09/05/2008 - 02:15
User Badges:
  • Silver, 250 points or more

Look at ypur topology..verify that you have no loop.


Massimiliano.

smohanasundaram Fri, 09/05/2008 - 02:45
User Badges:

no loop in y topology


following error message shown in console


00:21:58: %SW_MATM-4-MACFLAP_NOTIF: Host 0201.0000.0000 in vlan 1 is flapping be

tween port Gi1/0/2 and port Gi1/0/13

00:22:17: %SW_MATM-4-MACFLAP_NOTIF: Host 0201.0000.0000 in vlan 1 is flapping be

tween port Gi1/0/3 and port Gi1/0/2

00:22:28: %SW_MATM-4-MACFLAP_NOTIF: Host 0201.0000.0000 in vlan 1 is flapping be

tween port Gi1/0/2 and port Gi1/0/13

00:22:47: %SW_MATM-4-MACFLAP_NOTIF: Host 0201.0000.0000 in vlan 1 is flapping be

tween port Gi1/0/3 and port Gi1/0/2

00:22:58: %SW_MATM-4-MACFLAP_NOTIF: Host 0201.0000.0000 in vlan 1 is flapping be

tween port Gi1/0/2 and port Gi1/0/13

00:23:17: %SW_MATM-4-MACFLAP_NOTIF: Host 0201.0000.0000 in vlan 1 is flapping be

tween port Gi1/0/3 and port Gi1/0/2

00:23:28: %SW_MATM-4-MACFLAP_NOTIF: Host 0201.0000.0000 in vlan 1 is flapping be

tween port Gi1/0/2 and port Gi1/0/13

00:23:47: %SW_MATM-4-MACFLAP_NOTIF: Host 0201.0000.0000 in vlan 1 is flapping be

tween port Gi1/0/3 and port Gi1/0/2

00:23:58: %SW_MATM-4-MACFLAP_NOTIF: Host 0201.0000.0000 in vlan 1 is flapping be

tween port Gi1/0/2 and port Gi1/0/13


thnaks in advance

jpoplawski Fri, 09/05/2008 - 08:19
User Badges:
  • Bronze, 100 points or more

Dual-homed server perhaps?

smohanasundaram Fri, 09/05/2008 - 19:33
User Badges:

i have eight servers with dual ethernet cards.outside interface of servers connected to separate network switch this switch connected to my firewall --> router --> outside world(internet),inside interface of servers connected to this 3750 switch and 3750 used for core switch of network.and also my network have a 6 No's of unmanageable switches.


Please help


regs


S.Mohana sundaram



royalblues Fri, 09/05/2008 - 23:56
User Badges:
  • Green, 3000 points or more

Sundaram


The Mac address 0201.0000.0000 is the mac-address used by microsoft NLB.


Try disabling NLB on the servers and the error messasges will stop. If you need redundancy, it is better to do LACP


Narayan

Actions

This Discussion