Sorry, my answer take a while… but I would test before write. Effectively, the problem became from switch configuration. Our switch are a stack of Avaya ERS4870 and I have difficulties to understand the interface. I had configure all ports concerned by my configuration like that for all ports: In the « VLAN » Configuration: - VLAN tagging: « tagAll(trunk) » - « PrivateVlanPortType »: « trunk » - « DefaultVlanID » : to a LAN not distribued. I don’t understand why they ask for that even I choose « tagAll » (!!!) For the « LACP » one: - activate « AdmiEnabled » - « ActorAdminState » structure: activation of « lacpActive », « aggregation » and « shortTimeout » - « actorAdminKey »: chose one In my case the problem come that I have gave one of my real VLAN as « DefaultVlanID ». With this configuration no paquet can pass. Now I have choose the VLAN 1 in this case and everything is Ok. Best regards and thanks… > Le 7 févr. 2019 à 01:36, Gordon Messmer <gordon.messmer at gmail.com> a écrit : > > On 2/6/19 9:47 AM, Pierre Malard wrote: >> We have a Dell server with 4 Ethernet interface. I would to aggregate them in a bond. >> ... >> :/etc/sysconfig/network-scripts# cat ifcfg-bond0 >> ... >> BONDING_OPTS="mode=802.3ad > > > What type of managed switch are you using for those interfaces? Can you also include the configuration that you gave the switch? Do the switch logs indicate any errors with the bonded ports? > > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > https://lists.centos.org/mailman/listinfo/centos -- Pierre Malard « Tant que les lions n’auront pas leurs propres historiens, les histoires de chasse tourneront toujours à la gloire du chasseur » Proverbe africain |\ _,,,---,,_ /,`.-'`' -. ;-;;,_ |,4- ) )-,_. ,\ ( `'-' '---''(_/--' `-'\_) πr perl -e '$_=q#: 3|\ 5_,3-3,2_: 3/,`.'"'"'`'"'"' 5-. ;-;;,_: |,A- ) )-,_. ,\ ( `'"'"'-'"'"': '"'"'-3'"'"'2(_/--'"'"' `-'"'"'\_): 24πr::#;y#:#\n#;s#(\D)(\d+)#$1x$2#ge;print' - --> Ce message n’engage que son auteur <-- -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 833 bytes Desc: Message signed with OpenPGP URL: <http://lists.centos.org/pipermail/centos/attachments/20190207/7cfc28f5/attachment-0006.sig>