Vlan coming out from port channel

[Ashwin Jingade]

Valn is coming out from port channel:

C4K_EBM-4-HOSTFLAPPING: Host 70:69:5A:85:EA:BF in vlan 114 is moving from port Te1/8 to port Po1

[Leo Laohoo]

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@Ashwin Jingade wrote:

C4K_EBM-4-HOSTFLAPPING: Host 70:69:5A:85:EA:BF in vlan 114 is moving from port Te1/8 to port Po1

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So is Te 1/8 part of a Etherchannel 1?

[Ashwin Jingade]

No. T1/8 is a uplink connection to access layer switch.

But Vlan 114 is a port of port channel configuriaton.

Port channel config

 switchport
 switchport trunk native vlan 2
 switchport trunk allowed vlan 1,2,103-118,153-168
 switchport mode trunk

interface TenGigabitEthernet1/31
 switchport trunk native vlan 2
 switchport trunk allowed vlan 1,2,103-118,153-168
 switchport mode trunk
 channel-group 1 mode desirable non-silent

[Leo Laohoo]

The only time that error message occurs is when a a downstream client is has two (or more) ports configured as an Etherchannel but the ports of the switch isn't.
So use the command "sh mac add add 70:69:5A:85:EA:BF" to find out what port (of a switch) the client is connected to and see if Etherchannel is configured on this port or not.

[Ashwin Jingade]

This MAC belongs to T1/8:
SH INT T1/8
TenGigabitEthernet1/8 is up, line protocol is up (connected)
Hardware is Ten Gigabit Ethernet Port, address is 7069.5a85.eb87 (bia 7069.5a85.eb87)

When use this command :
#sh mac add add 70:69:5A:85:EA:BF
Unicast Entries
vlan mac address type protocols port
---------+---------------+--------+---------------------+-------------------------
103 7069.5a85.eabf dynamic ip,ipx,assigned,other Port-channel1
104 7069.5a85.eabf dynamic ip,ipx,assigned,other Port-channel1
105 7069.5a85.eabf dynamic ip,ipx,assigned,other Port-channel1
106 7069.5a85.eabf dynamic ip,ipx,assigned,other Port-channel1
107 7069.5a85.eabf dynamic ip,ipx,assigned,other Port-channel1
108 7069.5a85.eabf dynamic ip,ipx,assigned,other Port-channel1
109 7069.5a85.eabf dynamic ip,ipx,assigned,other Port-channel1
110 7069.5a85.eabf dynamic ip,ipx,assigned,other Port-channel1
111 7069.5a85.eabf dynamic ip,ipx,assigned,other Port-channel1
112 7069.5a85.eabf dynamic ip,ipx,assigned,other Port-channel1
113 7069.5a85.eabf dynamic ip,ipx,assigned,other Port-channel1
114 7069.5a85.eabf dynamic ip,ipx,assigned,other Port-channel1
115 7069.5a85.eabf dynamic ip,ipx,assigned,other Port-channel1
116 7069.5a85.eabf dynamic ip,ipx,assigned,other Port-channel1
117 7069.5a85.eabf dynamic ip,ipx,assigned,other Port-channel1
118 7069.5a85.eabf dynamic ip,ipx,assigned,other Port-channel1
153 7069.5a85.eabf dynamic ip,ipx,assigned,other Port-channel1
154 7069.5a85.eabf dynamic ip,ipx,assigned,other Port-channel1
155 7069.5a85.eabf dynamic ip,ipx,assigned,other Port-channel1
156 7069.5a85.eabf dynamic ip,ipx,assigned,other Port-channel1
157 7069.5a85.eabf dynamic ip,ipx,assigned,other Port-channel1
158 7069.5a85.eabf dynamic ip,ipx,assigned,other Port-channel1
159 7069.5a85.eabf dynamic ip,ipx,assigned,other Port-channel1
160 7069.5a85.eabf dynamic ip,ipx,assigned,other Port-channel1
161 7069.5a85.eabf dynamic ip,ipx,assigned,other Port-channel1
162 7069.5a85.eabf dynamic ip,ipx,assigned,other Port-channel1
163 7069.5a85.eabf dynamic ip,ipx,assigned,other Port-channel1
164 7069.5a85.eabf dynamic ip,ipx,assigned,other Port-channel1
165 7069.5a85.eabf dynamic ip,ipx,assigned,other Port-channel1
166 7069.5a85.eabf dynamic ip,ipx,assigned,other Port-channel1
167 7069.5a85.eabf dynamic ip,ipx,assigned,other Port-channel1
168 7069.5a85.eabf dynamic ip,ipx,assigned,other Port-channel1

[Leo Laohoo]

That MAC address belongs to a Cisco device. The output is proof that the switch in Te 1/8 may have more than one port connected to another switch and it's not in an etherchannel.

[Ashwin Jingade]

yes its T1/8 port connected with 3750 behind this more switches are connected.
but error message says vlan 114 is moving from port Te1/8 to port Po1.
how do I fix this error

[Leo Laohoo]

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@Ashwin Jingade wrote:
how do I fix this error

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Read my previous responses:  Trace the 3750 and find out how many ports are connected from this switch to the next.  There's got to be two.  Both ports must be in the same Etherchannel or disable one of them.  

Please stop "stringing" your LAN.  You're lucky you've not yet experience what it's like to have an STP loop burning your network. 

[Ashwin Jingade]

Thanks for your feedback.
But T1/8 is not an port channel, its a trunk port to 3750 [uplink connection]

Trunk port configuration :
interface TenGigabitEthernet1/8
description
switchport access vlan 2
switchport trunk native vlan 2
switchport mode trunk
udld port

Port channel details:
Port channels are T1/31 & T1/32

[Ashwin Jingade]

After changing IOS version now links are stable and no issues found.

Currently I am using :

 Version 03.06.07.E : cat4500e-universalk9.SPA.03.06.07.E.152-2.E7.bin