We recently purchased some HP Procurve 2920 switches and in setting them up I noticed multiple options for port groups. I wanted to see if anyone can clarify functional differences between setting up a port group as a 'Trunk' vs an active LACP group. Can't seem to find definitive documentation on the function of the 'Trunk' option or what protocols it uses.

Thanks a lot!

1 Answer 1


The switch has a built-in help function: ?

xa-eng(config)# trunk 1-2 trk17 
 trunk                 Do not use any protocol to create or maintain the trunk.
 lacp                  Use IEEE 802.1ad Link Aggregation protocol.
  • Thanks, I have not had a chance to get into the CLI for the HP switches that much and did not think to look there. Looks like the 'trunk' option is a static bond whereas the LACP is an active group. Thanks again! Commented Jan 22, 2014 at 19:00
  • And, yes, their help text does call it 802.**1**ad
    – Ricky
    Commented Jan 22, 2014 at 19:03
  • I noticed that... obviously a typo or someone's quick edit in the help file. Thanks again for the quick response. Looks like I'll be using the LACP since it's an actively negotiated connection. Commented Jan 22, 2014 at 19:21
  • @RickyBeam Wow, that should be brought up to their production team.
    – Ryan Foley
    Commented Jan 22, 2014 at 19:23
  • @Fizzle I just checked our switches with the same command and it now shows IEEE 802.3ad Link Aggregation Protocol. I think someone caught that as these switches were shipped this month. :-D Commented Jan 22, 2014 at 19:33

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