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Programming Languages: C

License: GNU General Public License version 2.0 (GPLv2)

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  • Followup: RE: Arp Mon Flapping when it should be down

    Thanks for your answer, unfortunately I was using balance-rr rather than active/backup mode (should have specifed) for which the arp_validate option is not applicable.

    2012-05-18 00:10:11 PDT by humankind135

  • Followup: RE: Arp Mon Flapping when it should be down

    Just as an FYI, the "arp_validate" option is meant to handle this case (that of multiple bonds on a network segment having each other's ARPs fool one another into thinking the path to the arp_ip_target is working). With arp_validate enabled, only the ARP traffic from the bond itself (and the replies to it) counts for the purpose of determining link state. The documentation follows:

    2012-05-17 10:05:15 PDT by vosburgh

  • Followup: RE: Arp Mon Flapping when it should be down

    Finally worked this out. It was due to another machine using bonding on the same segment for the same target. It seems that the bonding driver will interpret any arp for that ip (even another arp request) as a return. As this was a failover cluster and the interferance was from the inactive node I configured my cluster to take the bonding interfaces down when then were not in use and the...

    2012-05-17 06:37:23 PDT by humankind135

  • Arp Mon Flapping when it should be down

    Hi There I’m experiencing and issue where I have a bond with 2 cards connected to different switches (switch 1 and 3) which are in turn connected to another switch (switch 3) and I am using a target on the third switch for monitoring, this is to make sure of end to end connectivity. When everything is plugged in all is well and when I disconnect switch 1 or 2 from switch 3 the link goes...

    2012-05-17 04:27:26 PDT by humankind135

  • Followup: RE: bonding over bonding

    Unofrtunatly, I am using a RH 5.8, and so the 3.4.0 version of bonding driver which does not provide the "ad_select" option (appeared in v3.5.0) ... So actualy the bonding driver is choosing the most secure aggregate : 4 x 1G ....

    2012-04-29 23:15:39 PDT by elnikou13

  • Followup: RE: bonding over bonding

    Oh great, I'll try that tomorrow and post the result thanks again for your help !

    2012-04-26 11:25:28 PDT by elnikou13

  • Followup: RE: bonding over bonding

    On the switch, you would create two LACP groups: one for the 10G, and one for 1G. The linux bonding 802.3ad will associate those into two separate aggregators (putting all five interfaces into one bond), and select the "better" aggregator according to the criteria selected by the ad_select option (where "bandwidth" I think will do what you want).

    2012-04-26 10:46:13 PDT by vosburgh

  • Followup: RE: bonding over bonding

    First of all, thanks for your reply ! You think I can build a bonding interface with the 5 links and this options ? On the switchside, I will have to create an LACP group with different link speed, I thought it was not allowed ...

    2012-04-25 04:53:01 PDT by elnikou13

  • Followup: RE: bonding over bonding

    For bonding, the 802.3ad mode with ad_select=bandwidth should do this.

    2012-04-24 16:21:17 PDT by vosburgh

  • bonding over bonding

    Hello I would like to create a failover bonding between a 10 GB NIC and an aggreation of 4 x 1 GB NICs Is it possible ? Is there any other solution than bonding ? thanks in advance for your help Best regards.

    2012-04-23 07:00:56 PDT by elnikou13

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