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From: Ahmad Emneina <aemneina@gmail.com>
Date: Tue, 14 May 2013 15:13:01 -0700
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Subject: Re: Working with clouds on multiple ESX hosts
To: Cloudstack users mailing list <users@cloudstack.apache.org>
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I was talking about physical switchports and trunks. How many nics do your
esx hosts have? Do the vSwitches correspond to different pysical nics, or
do they all map to 1 nic?


On Tue, May 14, 2013 at 2:42 PM, Stanley Kaytovich <StanleyK@qwertyc.com>wrote:

> Ahmad,
>
> Actually, I misspoke, there are 6 ports on each host, but our switch only
> allows 8 ports in a trunk. If I understand you correctly, I created a trunk
> on our switch for vSwitch1 (8 ports).
>
> Below is our vSwitch configuration in CloudStack/vCenter:
>
> vSwitch0 - management (excluded from trunk)
> vSwitch1 - public
> vSwitch2 - storage (excluded from trunk)
> vSwitch3 - guests (excluded from trunk)
>
> Regards,
> Stan
>
> -----Original Message-----
> From: Ahmad Emneina [mailto:aemneina@gmail.com]
> Sent: Tuesday, May 14, 2013 5:30 PM
> To: Cloudstack users mailing list
> Subject: Re: Working with clouds on multiple ESX hosts
>
> what vlans are you trunking to the hosts? what vlans are you using in
> cloudstack as your zone vlans?
>
>
> On Tue, May 14, 2013 at 2:22 PM, Stanley Kaytovich <StanleyK@qwertyc.com
> >wrote:
>
> > Ahmad,
> >
> > I configured trunking on the switch for 8 ports. Each host has 4
> > physical NICs, so 8 ports are in a trunk on the switch. Still no
> > network connectivity.
> >
> > :-/
> >
> >
> > -----Original Message-----
> > From: Ahmad Emneina [mailto:aemneina@gmail.com]
> > Sent: Tuesday, May 14, 2013 4:35 PM
> > To: Cloudstack users mailing list
> > Subject: Re: Working with clouds on multiple ESX hosts
> >
> > Sounds like youre not trunking the zone vlans to all the switchports
> > your hosts connect to. Can you verify the vlans are trunked, then see
> > if your networking starts working?
> >
> >
> > On Tue, May 14, 2013 at 1:28 PM, Stanley Kaytovich
> > <StanleyK@qwertyc.com
> > >wrote:
> >
> > > Hello,
> > >
> > > This is more of a general question pertaining to best practices of
> > > how everyone works with multiple ESX hosts in a cloudstack zone. It
> > > seems that if a VM instance resides on a different host from other
> > > instances, there is no networking ability on the alienated
> > > instance(s). Since the hosts are chosen automatically, occasionally
> > > instances are created on an alternate host and the instance boots up
> > > without networking. Adding a tag in the computer offering is a way
> > > of forcing instances to be created on a particular hosts, though
> > > that
> > requires additional offerings for every host.
> > >
> > > Using a dvSwitch would be great, though on 4.0.2 I do not believe it
> > > is supported or I am unable to find any documentation to prove me
> > otherwise.
> > >
> > > What is the best practice or workaround for this?
> > >
> > > - Stan
> > >
> >
>

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