When i pull out the cable, then the bond is working properly.

Does it mean that the port is somehow flapping? Ping can still work, but the 
iperf test yields very low results.





huxia...@horebdata.cn
 
From: Serkan Çoban
Date: 2021-06-15 18:47
To: huxia...@horebdata.cn
CC: ceph-users
Subject: Re: [ceph-users] Issues with Ceph network redundancy using L2 MC-LAG
Do you observe the same behaviour when you pull a cable?
Maybe a flapping port might cause this kind of behaviour, other than
that you should't see any network disconnects.
Are you sure about LACP configuration, what is the output of 'cat
/proc/net/bonding/bond0'
 
On Tue, Jun 15, 2021 at 7:19 PM huxia...@horebdata.cn
<huxia...@horebdata.cn> wrote:
>
> Dear Cephers,
>
> I encountered the following networking issue several times, and i wonder 
> whether there is a solution for networking HA solution.
>
> We build ceph using L2 multi chassis link aggregation group (MC-LAG ) to 
> provide switch redundancy. On each host, we use 802.3ad, LACP
> mode for NIC redundancy. However, we observe several times, when a single 
> network port, either the cable, or the SFP+ optical module fails, Ceph 
> cluster  is badly affected by networking, although in theory it should be 
> able to tolerate.
>
> Did i miss something important here? and how to really achieve networking HA 
> in Ceph cluster?
>
> best regards,
>
> Samuel
>
>
>
>
> huxia...@horebdata.cn
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> ceph-users mailing list -- ceph-users@ceph.io
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