Forum Discussion
Reed_Gregory_76
Nimbostratus
NimbostratusLACP out of sync errors
We have a redundant pair of 3400 LTMs, and have LACP port trunks working to a stack of Cisco 3750G switches, and to our Cisco 6509 core. However we seem to have trouble getting the LACP to function p...
Reed_Gregory_76Nimbostratus
Nimbostratus750E (does not work... interface up / protocol down both interfaces):
interface GigabitEthernet1/0/2
description F5 Secondary Uplink
switchport trunk encapsulation dot1q
switchport trunk native vlan 999
switchport trunk allowed vlan 1010,1016
switchport mode trunk
channel-group 16 mode active
end
interface GigabitEthernet2/0/2
description F5 Secondary Uplink
switchport trunk encapsulation dot1q
switchport trunk native vlan 999
switchport trunk allowed vlan 1010,1016
switchport mode trunk
channel-group 16 mode active
end
interface Port-channel16
description F5 Secondary Uplink
switchport trunk encapsulation dot1q
switchport trunk native vlan 999
switchport trunk allowed vlan 1010,1016
switchport mode trunk
end
FunnyFarmsho lacp nei
Flags: S - Device is requesting Slow LACPDUs
F - Device is requesting Fast LACPDUs
A - Device is in Active mode P - Device is in Passive mode
Channel group 16 neighbors
Partner's information:
LACP port Admin Oper Port Port
Port Flags Priority Dev ID Age key Key Number State
Gi1/0/2 SA 261 0001.d78f.0d00 21s 0x0 0x0 0x105 0x45
Gi2/0/2 SA 262 0001.d78f.0d00 21s 0x0 0x0 0x106 0x45
IOS: C3750E Software (C3750E-UNIVERSALK9-M), Version 12.2(50)SE2
flash:c3750e-universalk9-mz.122-50.SE2.bin
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3750 stack (does work):
interface GigabitEthernet2/0/11
description Uplink to Secondary F5
switchport trunk encapsulation dot1q
switchport trunk native vlan 999
switchport trunk allowed vlan 5,6,10,11,16
switchport mode trunk
channel-group 4 mode active
end
interface GigabitEthernet4/0/32
description Uplink to Secondary F5
switchport trunk encapsulation dot1q
switchport trunk native vlan 999
switchport trunk allowed vlan 5,6,10,11,16
switchport mode trunk
channel-group 4 mode active
end
interface Port-channel4
description Uplink to Secondary F5
switchport trunk encapsulation dot1q
switchport trunk native vlan 999
switchport trunk allowed vlan 5,6,10,11,16
switchport mode trunk
end
ServerFarmshow lacp nei
Flags: S - Device is requesting Slow LACPDUs
F - Device is requesting Fast LACPDUs
A - Device is in Active mode P - Device is in Passive mode
Channel group 4 neighbors
Partner's information:
LACP port Admin Oper Port Port
Port Flags Priority Dev ID Age key Key Number State
Gi2/0/11 SA 257 0001.d78f.0d00 19s 0x0 0x2 0x101 0x3D
Gi4/0/32 SA 258 0001.d78f.0d00 18s 0x0 0x2 0x102 0x3D
IOS: C3750 Software (C3750-IPSERVICESK9-M), Version 12.2(50)SE1
c3750-ipservicesk9-mz.122-50.SE1.bin
