LAG aggregate interface removed after reboot

Products

• ProxySG Software - SGOS

Issue/Introduction

The aggregate interfaces added to a LAG (link aggregation group) are removed when the appliance reboots.

 

The event log displays the following messages:

LAGG: Member intf 1:0 attached to bridge!

LAGG: Member intf 1:1 attached to bridge!

Cause

The interfaces were detected to be members of a bridge group at the same time as the LAG.

The interfaces can only participate in one group at a time, so the initialization code removes them from the LAG.

Resolution

1. Check if the interfaces are part of a bridge group.
   
   SG#show interface 1:0
SG#show interface 1:1

   The following line will show if the interface is a member of a bridge group or set to None:
   
Member of the bridge: passthru-1
   
   
2. Disable the associated bridge:
   
   SG#conf t
SG#(config)bridge
SG#(config bridge)edit passthru-1
SG#(config bridge passthru-1)mode disable
Removing and reprogramming the attached bridge interfaces
  ok
   
   
3. Repeat the commands in step 1 to confirm the interfaces are no longer a part of the bridge group.
   The relevant line should now show as:
   
   Member of the bridge: none
   
   
4. Add the interfaces back to the LAG.
   
   SG#(config)interface aggr:1
SG#(config interface aggr:1)add 1:0
  ok
SG#(config interface aggr:1)add 1:1
  ok

Additional Information

This issue has been resolved in SGOS 7.3.13.1.