Portchannels with A

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Jul 19th, 2010
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Hi all,


I have an LACP portchannel towards a firewall. Every time the firewall restarts, the portchannel splits in a Po32 & Po32A.

My question is: why does this happen ? and is the Po32A interface part of the channel or not ?

What does "pseudo port-channel" mean ?


regards,

Geert


xxxxxx#sh etherchannel 32 detail
Group state = L2
Ports: 2   Maxports = 16
Port-channels: 2 Max Port-channels = 16
Protocol:   LACP
Minimum Links: 0
                Ports in the group:
                -------------------
Port: Te1/2/16
------------


Port state    = Up Mstr In-Bndl
Channel group = 32          Mode = Active      Gcchange = -
Port-channel  = Po32A       GC   =   -         Pseudo port-channel = Po32
Port index    = 0           Load = 0xFF        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
Te1/2/16  SA      bndl      32768         0x20      0x20    0x1211      0x3D


Partner's information:


          Partner Partner   LACP Partner  Partner   Partner  Partner     Partner
Port      Flags   State     Port Priority Admin Key Oper Key Port Number Port State
Te1/2/16  SA      bndl      255           0x0       0x1      0x1         0x3D


Age of the port in the current state: 4d:00h:22m:23s


Port: Te2/2/16
------------


Port state    = Up Mstr In-Bndl
Channel group = 32          Mode = Active      Gcchange = -
Port-channel  = Po32        GC   =   -         Pseudo port-channel = Po32
Port index    = 0           Load = 0xFF        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
Te2/2/16  SA      bndl      32768         0x20      0x20    0x2211      0x3D


Partner's information:


          Partner Partner   LACP Partner  Partner   Partner  Partner     Partner
Port      Flags   State     Port Priority Admin Key Oper Key Port Number Port State
Te2/2/16  SA      bndl      255           0x0       0x21     0x2         0x3D


Age of the port in the current state: 4d:00h:22m:26s



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


Port-channel: Po32    (Primary Aggregator)
         
------------


Age of the Port-channel   = 138d:20h:41m:57s
Logical slot/port   = 46/8          Number of ports = 1
HotStandBy port = null
Port state          = Port-channel Ag-Inuse
Protocol            =   LACP
Fast-switchover     = disabled
Load share deferral = disabled 


Ports in the Port-channel:


Index   Load   Port     EC state        No of bits
------+------+------+------------------+-----------
  0     FF     Te2/2/16 Active    8


Time since last port bundled:    4d:00h:27m:24s    Te2/2/16
Time since last port Un-bundled: 4d:00h:29m:38s    Te2/2/16


Port-channel: Po32A
------------


Age of the Port-channel   = 4d:00h:27m:24s
Logical slot/port   = 46/9          Number of ports = 1
HotStandBy port = null
Port state          = Port-channel Ag-Inuse
Protocol            =   LACP
Fast-switchover     = disabled
Load share deferral = disabled 


Ports in the Port-channel:


Index   Load   Port     EC state        No of bits
------+------+------+------------------+-----------
  0     FF     Te1/2/16 Active    8


Time since last port bundled:    4d:00h:27m:22s    Te1/2/16


Last applied Hash Distribution Algorithm: Adaptive

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