These two NICs appear to be on the same subnet. Even if the subnet mask
set at something other than the default, two NICs with consecutive IP
addresses would indicate that they are part of the same subnet.
Just how busy is that subnet? This may be an issue on a very heavy utilized
subnet, but I think the more critical issue is how the HP-3000 will handle
this. Assuming that the HP-3000 will accept these values and can manage to
figure out which NIC to use for outgoing packets within the same subnet,
why do this unless the HP-3000 will load balance outgoing traffic between
the NICS? Will it? Perhaps someone else can answer that question. I've
used multiple NICs on HP-3000s, but never on the same subnet.
For incoming traffic, you would have to have to point devices, desktops,
etc., to the specific address of the individual NICs, but this will not
affect outgoing traffic. I have found except for inbound file transfers,
that outgoing traffic usually heavier and therefore more critical,. For
directing outbound traffic (to other subnets) you would have to specify
different destination subnets and gateways for each NIC and only one of the
NICs can have the default gateway. And then if you have Store & Forward
buffers set to anything but "0", the HP-3000 will start acting like a
router.
One use for multiple NICs on an HP-3000 could be: 1 NIC for a subnet with
only servers (including HP-3000/9000) and perhaps DTCs with no gateway
specified, and the other NIC for all other traffic. The latter would have
a default gateway configured.
Tom Genute
-----Original Message-----
From: Gary Sielaff [mailto:[log in to unmask]]
Sent: Friday, June 08, 2001 6:25 PM
To: [log in to unmask]
Subject: NS3000
Here's one for you network guru's. I have to HP3000's.
Using the same switch/hub. One's IP address is
192.30.63.9 and the other is 192.30.63.10.
Will this scenario slow one or the other down? Or both down? What might be
a better way to go?
Gary
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