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Hello
Due Projessional IT COnsulting Project work last year
- with esxi 4.1 using VMXNET 3 and broadcom network adaptors at HP systems -
and Support calls made by HP & EMC & BMC , it´was recomened to todate the BMC
Adapter firmware to latest SUPPORTED ( by emc esxi 4.1 ) .
It was recomented by support to stop use esxi 4.1 as it´s EOL soon and
upgrade to ESXI 5.x .
But either under very heavy Load the BMC Gbit adapters was´nt mutch that stable
as wanted.
With Collegues together we used LVS for squid services .
In fackt - we kicked out the BMC adapters and replaced them with Intel quad
Gigabit cards and all issues where gone.
--
Mit freundlichen Grüßen / Best Regards
Horst Venzke ; PGP NET : 1024G/082F2E6D ; http://www.remsnet.de
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> Gesendet: Donnerstag, 27. Juni 2013 um 17:09 Uhr
> Von: housey@xxxxxxxxxxxxxx
> An: lvs-users@xxxxxxxxxxxxxxxxxxxxxx
> Betreff: Re: [lvs-users] TCP Retransmissions?
>
> Hi Daryl
>
> Its a Virtual Machine running on esxi 4.1 using VMXNET 3 as the network
> adaptor.
>
> The physical machine is a dell 1950 which does have broadcom network
> adaptors.
>
> Is there anything I need to take account of running LVS on esxi?
>
> Thanks
>
> Paul
>
>
> On 27.06.2013 13:28, daryl herzmann wrote:
> > Hi,
> >
> > Is this a bnx2 card? Try disabling GRO for both devices
> >
> > ethtool -K eth0 gro off
> > ethtool -K eth1 gro off
> >
> > daryl
> >
> > On Wed, 26 Jun 2013, housey@xxxxxxxxxxxxxx wrote:
> >
> >> Hi
> >>
> >> Ive been looking into LVS to help balance load amongst some SMTP
> >> servers.
> >>
> >> I have set up a test LVS system in front of 3 real SMTP servers.
> >>
> >> I'm using direct routing and have used the iptables method on all 3
> >> real servers to overcome any arp issues
> >>
> >> i.e. iptables -t nat -A PREROUTING -p tcp -d <vip> --dport 25 -j
> >> REDIRECT
> >>
> >> My testing seems to be going well and I can see traffic being
> >> balanced
> >> between the 3 servers, however I ran tcpdump on the lvs server just
> >> to
> >> look at the traffic and noticed im getting lots of TCP
> >> Retransmission
> >> and some TCP Dup ACK's
> >>
> >> I ran tcpdump on a normal SMTP server and don't see anywhere near as
> >> many.
> >>
> >> Can someone lend me their experience and advise if this something I
> >> need to worry about and investigate further?
> >>
> >> Thanks
> >>
> >> Paul
> >>
> >>
> >>
> >>
> >>
> >>
> >>
> >> _______________________________________________
> >> Please read the documentation before posting - it's available at:
> >> http://www.linuxvirtualserver.org/
> >>
> >> LinuxVirtualServer.org mailing list -
> >> lvs-users@xxxxxxxxxxxxxxxxxxxxxx
> >> Send requests to lvs-users-request@xxxxxxxxxxxxxxxxxxxxxx
> >> or go to http://lists.graemef.net/mailman/listinfo/lvs-users
> >>
>
>
> _______________________________________________
> Please read the documentation before posting - it's available at:
> http://www.linuxvirtualserver.org/
>
> LinuxVirtualServer.org mailing list - lvs-users@xxxxxxxxxxxxxxxxxxxxxx
> Send requests to lvs-users-request@xxxxxxxxxxxxxxxxxxxxxx
> or go to http://lists.graemef.net/mailman/listinfo/lvs-users
>
_______________________________________________
Please read the documentation before posting - it's available at:
http://www.linuxvirtualserver.org/
LinuxVirtualServer.org mailing list - lvs-users@xxxxxxxxxxxxxxxxxxxxxx
Send requests to lvs-users-request@xxxxxxxxxxxxxxxxxxxxxx
or go to http://lists.graemef.net/mailman/listinfo/lvs-users
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