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Having got the Sunrays using the LAN for their connection on a 172.X
address. Could I use the other card on the server as well by doing a
utadm -A hme1.
In other words could I have both cards on the same subnet so that I
get better throughput?

Brian Lockwood

brian lockwood wrote:
> Having got the Sunrays using the LAN for their connection on a 172.X
> address. Could I use the other card on the server as well by doing a
> utadm -A hme1.
> In other words could I have both cards on the same subnet so that I
> get better throughput?
>
> Brian Lockwood


I don't think that is a tested configuration. What is tested is
setting up two NICs with IPMP failover.

If you want more throughput you may want to consider gigabit.

Elias

Elias <nospam@charter.net> wrote in message news:<1090s4irujchd52@corp.supernews.com>...
> brian lockwood wrote:
> > Having got the Sunrays using the LAN for their connection on a 172.X
> > address. Could I use the other card on the server as well by doing a
> > utadm -A hme1.
> > In other words could I have both cards on the same subnet so that I
> > get better throughput?
> >
> > Brian Lockwood
>
>
> I don't think that is a tested configuration. What is tested is
> setting up two NICs with IPMP failover.
>
> If you want more throughput you may want to consider gigabit.
>
> Elias

Well I guess I could just try it out & see what happens. I will also
price up some GB cards.

"brian lockwood" <t100ss@hotmail.com> wrote:
> Having got the Sunrays using the LAN for their connection on a 172.X
> address. Could I use the other card on the server as well by doing a
> utadm -A hme1.
> In other words could I have both cards on the same subnet so that I
> get better throughput?

There should be several configurations where both interfaces work fine.
Mostly this will depend on the actual structure of your network. And
make sure that all appliances have 2.0 firmware.

I would guess that the first hurdle is dhcp configuration. For starters, Solaris
in.dhcpd will not provide dhcp addresses to two network interfaces
which are in the same class C network. That limits your options
for dhcp configurations. If dhcp vendor tags are configured
such that the Sun Ray appliances are always pointed towards
the IP address of one of the two interfaces, then utauthd will
get connections only on that interface, and it will not loadbalance
from one interface to the other. (Of course the two interfaces
in the same physical network must have different IP addresses, or else)
I have no idea whether utadm -A will choke when you configure
the second interface into the same class C subnet.

I would prefer a configuration where the two interfaces are in a different class C
network, then if something unexpectedly should fail, I could play around with
different DHCP parameters on the different interfaces (such as
AltAuth and others which define authentication manager IP addresses).
Alternatively, if you have no router between Sun Ray appliances
and Sun Ray server, you might be able to use a configuration where the
Sun Ray appliances receive dhcp addresses, but then rely on
authentication manager discovery to find the utauthd.


Thomas