Cisco EtherChannel Suspended Mode – Troubleshooting Guide

Here is the configuration:

Current configuration : 154 bytes
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interface Port-channel1
 description TRUNK
 switchport trunk allowed vlan 10,20
 switchport mode trunk
end


interface GigabitEthernet1/0/47
 description SW1
 switchport trunk allowed vlan 10,20
 switchport mode trunk
 speed 1000
 duplex full
 channel-protocol lacp
 channel-group 1 mode active
end


interface GigabitEthernet1/0/48
 description SW1
 switchport trunk allowed vlan 10,20
 switchport mode trunk
 speed 1000
 duplex full
 channel-protocol lacp
 channel-group 1 mode active
end

I have verified and other side of switch has same configuration. i have matched them word to word.

Here is the etherchannel summary

Group  Port-channel  Protocol    Ports
------+-------------+-----------+-----------------------------------------------
1      Po1(SU)         LACP      Gi1/0/47(P) Gi1/0/48(s)

On switch port i have seen Amber light

In log i have seen:

Feb 28 22:39:45.558: %EC-5-L3DONTBNDL2: Gi1/0/48 suspended: LACP currently not enabled on the remote port.

etherchannel details:

#sh etherchannel 1 detail
Group state = L2
Ports: 2   Maxports = 16
Port-channels: 1 Max Port-channels = 16
Protocol:   LACP
Minimum Links: 0


        Ports in the group:
        -------------------
Port: Gi1/0/47
------------

Port state    = Up Mstr Assoc In-Bndl
Channel group = 1           Mode = Active          Gcchange = -
Port-channel  = Po1         GC   =   -             Pseudo port-channel = Po1
Port index    = 0           Load = 0x00            Protocol =   LACP

Flags:  S - Device is sending Slow LACPDUs   F - Device is sending fast LACPDUs.
        A - Device is in active mode.        P - Device is in passive mode.

Local information:
                            LACP port     Admin     Oper    Port        Port
Port      Flags   State     Priority      Key       Key     Number      State
Gi1/0/47  SA      bndl      32768         0x1       0x1     0x130       0x3D

Partner's information:

                  LACP port                        Admin  Oper   Port    Port
Port      Flags   Priority  Dev ID          Age    key    Key    Number  State
Gi1/0/47  SA      32768     6c99.8962.2900   0s    0x0    0x10   0x110   0x3D

Age of the port in the current state: 1d:17h:22m:19s

Port: Gi1/0/48
------------

Port state    = Up Cnt-bndl-rmt Suspend Mstr Rmt-LACP_Dsbl Not-in-Bndl
Channel group = 1           Mode = Active          Gcchange = -
Port-channel  = null        GC   =   -             Pseudo port-channel = Po1
Port index    = 0           Load = 0x00            Protocol =   LACP

Flags:  S - Device is sending Slow LACPDUs   F - Device is sending fast LACPDUs.
        A - Device is in active mode.        P - Device is in passive mode.

Local information:
                            LACP port     Admin     Oper    Port        Port
Port      Flags   State     Priority      Key       Key     Number      State
Gi1/0/48  SA      susp      32768         0x1       0x1     0x131       0x7D

Age of the port in the current state: 0d:00h:28m:16s

        Port-channels in the group:
        ---------------------------

Port-channel: Po1    (Primary Aggregator)

------------

Age of the Port-channel   = 1d:17h:26m:42s
Logical slot/port   = 9/1          Number of ports = 1
HotStandBy port = null
Port state          = Port-channel Ag-Inuse
Protocol            =   LACP
Port security       = Disabled

Ports in the Port-channel:

Index   Load   Port     EC state        No of bits
------+------+------+------------------+-----------
  0     00     Gi1/0/47 Active             0

Time since last port bundled:    1d:17h:22m:19s    Gi1/0/47 

Otherside switch SW1 i am seeing this.

Group  Port-channel  Protocol    Ports
------+-------------+-----------+-----------------------------------------------
16     Po16(SU)        LACP      Gi1/0/14(D) Gi1/0/15(P)

interface status:

SW1#sh int Gi1/0/14
GigabitEthernet1/0/14 is down, line protocol is down (notconnect)