Bug #13344
closed
  
Vlan loses parent interface when changing LAGG mtu to jumbo frames
 
        
        Added by Matthew Whittaker-Williams over 3 years ago.
        Updated almost 2 years ago.
        
  
  
  
  Description
  
  Hi,
	Psense+ version: 22.01
	When I try to add jumbo frames to lagg interface ( 9000 ) - main 
When I change the main interface enabled with no ip address the vlans configured under the lagg instantly lose their parent device.
	lagg1: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 9000
    description: LAGG1
	ifconfig lagg1.115|grep vlan
    groups: vlan
    vlan: 0 vlanpcp: 0 parent interface: <none>
	How am I suppose to enable jumbo frames on a aggregated link without losing vlan device links?
Also how to keep it persistent from the gui without doing hacks during bootup.
   
 
  
  Files
  
 
  
  
    
    
    
    it appears with 22.05 too.
	to workaround :
	re-save the Lagg interface Interfaces>LAGGs
	after resaving:
lagg0.100: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 9000
    options=3<RXCSUM,TXCSUM>
	ifconfig lagg0.100|grep vlan
groups: vlan
vlan: 100 vlanpcp: 0 parent interface: lagg0
	22.05-RELEASE (amd64)
built on Wed Jun 22 18:56:13 UTC 2022
FreeBSD 12.3-STABLE
 
     
   
  
  
    
    
    
    Matthew Whittaker-Williams wrote:
	When I try to add jumbo frames to lagg interface ( 9000 ) - main 
When I change the main interface enabled with no ip address the vlans configured under the lagg instantly lose their parent device.
	Same behavior in 22.05, saving the (parent) interface with with IPv4/6 set to none and MTU 9000 kills connectivity on any VLANs on the LAGG. Reverting config and reboot/reroot restores connectivity. Config corrected, saving/applying interfaces and resetting states did not restore connectivity to sub-interfaces.
 
     
   
  
  
  
  
    
    
    
    
       - Project changed from pfSense Plus to pfSense
 
       - Category changed from LAGG Interfaces to LAGG Interfaces
 
       - Status changed from New to Duplicate
 
       - Affected Plus Version deleted (
22.01) 
    
    
     
   
  
  
    
    
    
    
       - Is duplicate of Bug #9453: Reconfiguring a parent LAGG interface breaks its VLANs added
 
    
    
     
   
  
 
  
  
 
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