SW_MATM-4-MACFLAP_NOTIF 这种故障如何解决？

qdigrp

1w0d: %STANDBY-3-DUPADDR: Duplicate address 10.177.155.65 on Vlan81, sourced by 0000.0c07.ac51
1w0d: %C4K_EBM-4-HOSTFLAPPING: Host 00:23:CD:91:0B:19 in vlan 11 is flapping between port Po1 and port Gi3/1
1w0d: %C4K_EBM-4-HOSTFLAPPING: Host 00:11:E5:00:A3:A0 in vlan 11 is flapping between port Po1 and port Gi3/1
1w0d: %C4K_EBM-4-HOSTFLAPPING: Host 00:11:E5:00:A3:A8 in vlan 11 is flapping between port Po1 and port Gi3/1
1w0d: %C4K_EBM-4-HOSTFLAPPING: Host 00:1B:78:37:AB:F4 in vlan 7 is flapping between port Fa2/19 and port Po1
1w0d: %C4K_EBM-4-HOSTFLAPPING: Host 00:1F:16:18:8F:3D in vlan 16 is flapping between port Po1 and port Gi3/1
1w0d: %C4K_EBM-4-HOSTFLAPPING: Host 00:163:C4:C8:72 in vlan 45 is flapping between port Po1 and port Gi3/1
1w0d: %STANDBY-3-DUPADDR: Duplicate address 192.168.21.1 on Vlan45, sourced by 0000.0c07.ac2d
1w0d: %STANDBY-3-DUPADDR: Duplicate address 10.177.159.1 on Vlan23, sourced by 0000.0c07.ac17
1w0d: %C4K_EBM-4-HOSTFLAPPING: Host 00:1E:C9:37:C5:62 in vlan 23 is flapping between port Fa2/25 and port Po1
1w0d: %C4K_EBM-4-HOSTFLAPPING: Host 00:1E:C9:3F:85:70 in vlan 23 is flapping between port Gi3/1 and port Po1
1w0d: %STANDBY-3-DUPADDR: Duplicate address 192.168.62.1 on Vlan62, sourced by 0000.0c07.ac3e
1w0d: %C4K_EBM-4-HOSTFLAPPING: Host 00:1D:0F:1E:A11 in vlan 10 is flapping between port Po1 and port Gi3/1
1w0d: %C4K_EBM-4-HOSTFLAPPING: Host 00:0C:76:BA:AF:36 in vlan 62 is flapping between port Fa2/25 and port Fa2/6
1w0d: %C4K_EBM-4-HOSTFLAPPING: Host 00:0C:76:BA:AF:36 in vlan 62 is flapping between port Fa2/6 and port Fa2/25
1w0d: %C4K_EBM-4-HOSTFLAPPING: Host B8:AC:6F:24:FC8 in vlan 10 is flapping between port Gi3/1 and port Po1
1w0d: %STANDBY-3-DUPADDR: Duplicate address 192.168.15.1 on Vlan44, sourced by 0000.0c07.ac2c
1w0d: %C4K_EBM-4-HOSTFLAPPING: Host 00:26:9E:06:A7:B3 in vlan 10 is flapping between port Fa2/25 and port Gi3/1
1w0d: %C4K_EBM-4-HOSTFLAPPING: Host B8:AC:6F:24:FC8 in vlan 10 is flapping between port Gi3/1 and port Po1
1w0d: %C4K_EBM-4-HOSTFLAPPING: Host 00:08:74:A4:A8:6C in vlan 10 is flapping between port Fa2/25 and port Fa2/6
1w0d: %C4K_EBM-4-HOSTFLAPPING: Host 00:0F:8F:34:7B:42 in vlan 10 is flapping between port Fa2/25 and port Po1
1w0d: %C4K_EBM-4-HOSTFLAPPING: Host B8:AC:6F:24:FC8 in vlan 10 is flapping between port Gi3/1 and port Po1
1w0d: %C4K_EBM-4-HOSTFLAPPING: Host 00:26:9E:06:A7:B3 in vlan 10 is flapping between port Fa2/25 and port Gi3/1
1w0d: %C4K_EBM-4-HOSTFLAPPING: Host B8:AC:6F:24:FC8 in vlan 10 is flapping between port Gi3/1 and port Po1
1w0d: %C4K_EBM-4-HOSTFLAPPING: Host 00:0F:8F:34:7B:42 in vlan 10 is flapping between port Fa2/25 and port Po1
1w0d: %C4K_EBM-4-HOSTFLAPPING: Host 00:26:9E:06:A7:B3 in vlan 10 is flapping between port Fa2/25 and port Gi3/1
1w0d: %C4K_EBM-4-HOSTFLAPPING: Host 00:25:64:B6:8C:66 in vlan 10 is flapping between port Po1 and port Gi3/1
1w0d: %C4K_EBM-4-HOSTFLAPPING: Host 00:08:74:A4:A7:A0 in vlan 10 is flapping between port Po1 and port Fa2/6
1w0d: %C4K_EBM-4-HOSTFLAPPING: Host 00:19:E0:2D:AA:45 in vlan 10 is flapping between port Gi3/1 and port Fa2/25
1w0d: %C4K_EBM-4-HOSTFLAPPING: Host F0E:F1:20:7F:87 in vlan 10 is flapping between port Fa2/25 and port Gi3/1
1w0d: %STANDBY-3-DUPADDR: Duplicate address 192.168.60.1 on Vlan60, sourced by 0000.0c07.ac3c
1w0d: %C4K_EBM-4-HOSTFLAPPING: Host 00:90:27:90:1C:25 in vlan 15 is flapping between port Fa2/25 and port Gi3/1
1w0d: %C4K_EBM-4-HOSTFLAPPING: Host 00:0D:60:9E73 in vlan 15 is flapping between port Fa2/25 and port Gi3/1
1w0d: %C4K_EBM-4-HOSTFLAPPING: Host 00:90:27:7A:20:B3 in vlan 15 is flapping between port Gi3/1 and port Po1
1w0d: %STANDBY-3-DUPADDR: Duplicate address 10.177.157.129 on Vlan15, sourced by 0000.0c07.ac0f
1w0d: %STANDBY-3-DUPADDR: Duplicate address 192.168.18.1 on Vlan18, sourced by 0000.0c07.ac12
1w0d: %C4K_EBM-4-HOSTFLAPPING: Host 00:17:A4:4C:5C:23 in vlan 18 is flapping between port Fa2/19 and port Po1
1w0d: %STANDBY-3-DUPADDR: Duplicate address 192.168.13.1 on Vlan43, sourced by 0000.0c07.ac2b
1w0d: %C4K_EBM-4-HOSTFLAPPING: Host 00:1B:78:37:AB:E6 in vlan 7 is flapping between port Fa2/25 and port Fa2/19
1w0d: %C4K_EBM-4-HOSTFLAPPING: Host 00:1B:78:37:AB:F4 in vlan 7 is flapping between port Po1 and port Fa2/19
1w0d: %C4K_EBM-4-HOSTFLAPPING: Host 00:0E:A6:CA:6C:9C in vlan 7 is flapping between port Fa2/25 and port Fa2/19
1w0d: %STANDBY-3-DUPADDR: Duplicate address 192.168.13.1 on Vlan43, sourced by 0000.0c07.ac2b

又是这些错误的提示！！我已经疯了，太他妈的难弄了！！

ssffzz1

这是那个机器上出来的啊。

哪台2960的loopback检测开了没有。我直接怀疑是2960下面的某个HUB之类的环路了。

有个很简单的方法：你清除掉2960的接口计数。然后看看那个接口的计数在疯长。不用看和45相连的那个接口。
或者是你吧上述错误信息中的MAC查一下在2960的那个端口上，你把这个查询结果统计给我。查3次，每次间隔5分钟。

qdigrp

1.不是的，这些错误提示是4506 上的，里面的主机mac address  有些也并不是销售大厅，他是全公司都有的，

另外我在12.31号,做了如下操作，就是在销售大厅里断掉其下所有的交换机，就只有一台接入层的交换机连到4506上，但还是有以上的错误显示，所以，不是像你说的，有hub坏路,
2.销售大厅那台2960并没有开启loopback ，其实我一直搞不明白你所说的开启到底指的是什么意思，
像以下这样吗？
cisco_2960#show errdisable recovery
ErrDisable Reason    Timer Status
-----------------    --------------
udld                 Disabled
bpduguard            Disabled
security-violatio    Disabled
channel-misconfig    Disabled
vmps                 Disabled
pagp-flap            Disabled
dtp-flap             Disabled
link-flap            Disabled
psecure-violation    Disabled
sfp-config-mismat    Disabled
gbic-invalid         Disabled
dhcp-rate-limit      Disabled
unicast-flood        Disabled
storm-control        Disabled
arp-inspection       Disabled
loopback             enabled
Timer interval: 300 seconds

Interfaces that will be enabled at the next timeout:

qdigrp

是不是有备用的3750中的物理MAC address和销售大厅里的某一台 2960的MAC address 是一样的。

另外我准备今晚将销售大厅的接入层交换机更换掉，看看是不是问题依然存在，如果说还存大，那真的没有办法 了。

qdigrp

今天晚上结果已经出来了，替换了原接入层的2960，用另外一台2960接上， 过了十几钞钟，故障依然出现.我已心凉！哎！！！！！！！！！！！！

qdigrp

在网上查了相关的信息，出来了以下结果：那位帮忙再深入解释一下。好像是说channel port 不支持



Core Issue
This is an example of the exact message that can appear:

month date time %C4K_EBM-4-HOSTFLAPPING: Host 00:00:00:00:00:00 in vlan xx is flapping between port xx/xx and port xx/xx.

This happens if the controller ports are set up as Link Aggregation (LAG) and the WLC is connected between two different switches.


Resolution
LAG cannot be set up between two different switches, especially with Catalyst 4500 series switches, because the switches do not support port channels that span over multiple switches. Disable LAG in order to resolve this issue.

For more information, refer to Enabling Link Aggregation on WLC

qdigrp

在备用的3750上显示以下信息
[OK]
C-3750#s log
Syslog logging: enabled (0 messages dropped, 0 messages rate-limited, 0 flushes, 0 overruns)
    Console logging: level debugging, 5272 messages logged
    Monitor logging: level debugging, 0 messages logged
    Buffer logging: level debugging, 5272 messages logged
    Exception Logging: size (4096 bytes)
    File logging: disabled
    Trap logging: level informational, 5276 message lines logged
         
Log Buffer (4096 bytes):
tive
3w4d: %STANDBY-6-STATECHANGE: Vlan7 Group 7 state Active -> Speak
3w4d: %STANDBY-6-STATECHANGE: Vlan23 Group 23 state Standby -> Active
3w4d: %STANDBY-6-STATECHANGE: Vlan41 Group 41 state Active -> Speak
3w4d: %STANDBY-6-STATECHANGE: Vlan13 Group 13 state Active -> Speak
3w4d: %STANDBY-6-STATECHANGE: Vlan40 Group 40 state Active -> Speak
3w4d: %STANDBY-6-STATECHANGE: Vlan23 Group 23 state Active -> Speak
3w4d: %STANDBY-6-STATECHANGE: Vlan21 Group 21 state Standby -> Active
3w4d: %STANDBY-6-STATECHANGE: Vlan15 Group 15 state Standby -> Active
3w4d: %STANDBY-6-STATECHANGE: Vlan11 Group 11 state Standby -> Active
3w4d: %STANDBY-6-STATECHANGE: Vlan23 Group 23 state Standby -> Active
3w4d: %STANDBY-6-STATECHANGE: Vlan44 Group 44 state Standby -> Active
3w4d: %STANDBY-6-STATECHANGE: Vlan10 Group 10 state Standby -> Active
3w4d: %STANDBY-6-STATECHANGE: Vlan61 Group 61 state Standby -> Active
3w4d: %STANDBY-6-STATECHANGE: Vlan91 Group 91 state Standby -> Active
3w4d: %STANDBY-6-STATECHANGE: Vlan16 Group 16 state Standby -> Active
3w4d: %STANDBY-6-STATECHANGE: Vlan7 Group 7 state Standby -> Active
3w4d: %STANDBY-6-STATECHANGE: Vlan44 Group 44 state Active -> Speak
3w4d: %STANDBY-6-STATECHANGE: Vlan43 Group 43 state Standby -> Active
3w4d: %STANDBY-6-STATECHANGE: Vlan18 Group 18 state Standby -> Active
3w4d: %STANDBY-6-STATECHANGE: Vlan47 Group 47 state Standby -> Active
3w4d: %STANDBY-6-STATECHANGE: Vlan18 Group 18 state Active -> Speak
3w4d: %STANDBY-6-STATECHANGE: Vlan47 Group 47 state Active -> Speak
3w4d: %STANDBY-6-STATECHANGE: Vlan60 Group 60 state Standby -> Active
3w4d: %STANDBY-6-STATECHANGE: Vlan60 Group 60 state Active -> Speak
3w4d: %STANDBY-6-STATECHANGE: Vlan10 Group 10 state Active -> Speak
3w4d: %STANDBY-3-DUPADDR: Duplicate address 10.177.156.130 on Vlan11, sourced by 000f.8f34.7b43
3w4d: %STANDBY-6-STATECHANGE: Vlan11 Group 11 state Active -> Speak
3w4d: %STANDBY-6-STATECHANGE: Vlan46 Group 46 state Standby -> Active
3w4d: %STANDBY-6-STATECHANGE: Vlan13 Group 13 state Standby -> Active
3w4d: %STANDBY-6-STATECHANGE: Vlan61 Group 61 state Active -> Speak
3w4d: %STANDBY-6-STATECHANGE: Vlan43 Group 43 state Active -> Speak
3w4d: %STANDBY-6-STATECHANGE: Vlan13 Group 13 state Active -> Speak
3w4d: %STANDBY-6-STATECHANGE: Vlan16 Group 16 state Active -> Speak
3w4d: %STANDBY-6-STATECHANGE: Vlan15 Group 15 state Active -> Speak
3w4d: %STANDBY-6-STATECHANGE: Vlan91 Group 91 state Active -> Speak
3w4d: %STANDBY-6-STATECHANGE: Vlan23 Group 23 state Active -> Speak
3w4d: %STANDBY-6-STATECHANGE: Vlan7 Group 7 state Active -> Speak
3w4d: %STANDBY-6-STATECHANGE: Vlan46 Group 46 state Active -> Speak
3w4d: %STANDBY-6-STATECHANGE: Vlan41 Group 41 state Standby -> Active
3w4d: %STANDBY-6-STATECHANGE: Vlan41 Group 41 state Active -> Speak
3w4d: %STANDBY-6-STATECHANGE: Vlan47 Group 47 state Standby -> Active
3w4d: %STANDBY-6-STATECHANGE: Vlan21 Group 21 state Active -> Speak
3w4d: %STANDBY-6-STATECHANGE: Vlan62 Group 62 state Active -> Speak
3w4d: %STANDBY-6-STATECHANGE: Vlan47 Group 47 state Active -> Speak
3w4d: %STANDBY-6-STATECHANGE: Vlan1 Group 1 state Active -> Speak

qdigrp

网上的资料认为，还是 STP有问题？？？？？？？？？？？？？？/
Problem
The switch generates %SYS-3-P2_ERROR: Host xxxxxxx is flapping between ports… messages, where xxxxxxx is a MAC address.
Description
This example shows the console output that you see when this error occurs:
%SYS-4-P2_WARN: 1/Host 00:50:0f:20:08:00 is flapping between port 1/2 and port 4/39 Use the steps and guidelines in this section in order to understand and troubleshoot the cause of this error message.
The message indicates that your Catalyst 4500/4000 switch has learned a MAC address that already exists in the content-addressable memory (CAM) table, on a port other than the original one. This behavior repeatedly occurs over short periods of time, which means that there is address flapping between ports.
If the message appears for multiple MAC addresses, the behavior is not normal. This behavior indicates a possible network problem because the MAC addresses move quickly from one port to another port before the default aging time. The problem can be looping traffic on the network. Typical symptoms include:
High CPU utilization
Slow traffic throughout the network
High backplane utilization on the switch
For information on how to identify and troubleshoot issues with spanning tree, refer to Spanning Tree Protocol Problems and Related Design Considerations.

ssffzz1

哦。
我整理一下你的问题：
1、你确信是销售大厅的2960接入后就有问题。
2、把2960下接PC的线都拔掉，直接2条线分别接45和37也出现问题。
3、把2960换掉也出问题。

不确定的问题：
2960和45/37间是一条链路还是做了链路聚合。这些链路是光纤还是电接口。

CU168007041

在网上查了相关的信息，出来了以下结果：那位帮忙再深入解释一下。好像是说channel port 不支持



Co ...
qdigrp 发表于 2011-01-05 11:04

上面这段话说的无线控制器和交换机互连，启用端口聚合的时候发生的现象，与你的问题无关。你现在的etherchannel是使用静态的on模式，LAG应该自动关闭。不过你可以确认一下是否关闭了。