What I really want is one NIC, the "active" one, connected to Switch-A.
The other NIC, "standby", is hooked to switch-B.
If Switch-A fails (or the NIC fails), the software on the NT server
notices that there is a loss of connectivity on this NIC. Then the
"standby" NIC takes over with the same IP (doing a Gratuitous ARP to
inform local-net devices of the change) and now traffic is going thru
Switch-B
Client PCs will never know (we'll have redundant switches and paths
in the core). If an edge switch is lost, then those PCs will lose
connectivity, of course, unless manual patching is done.
-------------------------------------------------
Tks | <mailto:[EMAIL PROTECTED]>
BV | <mailto:[EMAIL PROTECTED]>
Sr. Technical Consultant, SBM, A Gates/Arrow Co.
Vox 770-623-3430 11455 Lakefield Dr.
Fax 770-623-3429 Duluth, GA 30097-1511
=================================================
-----Original Message-----
From: Windows NT/2000 Discussion List
[mailto:[EMAIL PROTECTED]]On Behalf Of Ali
Sent: Thursday, January 25, 2001 1:53 PM
To: [EMAIL PROTECTED]
Subject: Re: redundant NICs
They way you do it is you install two Intel nics and there is a software
that's loaded into your tray by your clock. u go into the Intel software
and
you can group those two or more nics to together. they will operate on
the
same ip and be redundant and give you more throughput.
-----Original Message-----
From: Windows NT/2000 Discussion List
[mailto:[EMAIL PROTECTED]]On Behalf Of Bob Vance
Sent: Thursday, January 25, 2001 5:25 AM
To: [EMAIL PROTECTED]
Subject: Re: redundant NICs
Thanks, Denis.
Someone else (off the list) mentioned "Intel", as well.
So, is the standby/failover simply built into the driver or is there
some kind of higher-level code that must also be installed?
Does Intel's site give good enough info on this product?
-------------------------------------------------
Tks | <mailto:[EMAIL PROTECTED]>
BV | <mailto:[EMAIL PROTECTED]>
Sr. Technical Consultant, SBM, A Gates/Arrow Co.
Vox 770-623-3430 11455 Lakefield Dr.
Fax 770-623-3429 Duluth, GA 30097-1511
=================================================
-----Original Message-----
From: Denis A. Baldwin [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, January 24, 2001 4:53 PM
To: [EMAIL PROTECTED]
Subject: RE: redundant NICs
Intel makes a product like this. We use several of them on our networks
and
they work great. It's called Intel PRO 100+ Dual Port Server NIC.
Denis
Denis A. Baldwin - A+ / MCP / I-Net+ / Network+
Network Administrator, CAE INC.
810-231-9546, ext. 229
-----Original Message-----
From: Windows NT/2000 Discussion List
[mailto:[EMAIL PROTECTED]]On Behalf Of Bob Vance
Sent: Wednesday, January 24, 2001 4:16 PM
To: [EMAIL PROTECTED]
Subject: redundant NICs
Does NT (4 or 2k) support, or is there some product support for, having
2 NICs in a failover, high-availability mode on one box.
E.g., for HP-UX Unix, HP has a product called MC/ServiceGuard which
includes this feature (among many others). IP address is on one NIC
while the other NIC is in "standby" mode. If network connectivity is
lost on primary NIC (either card failure or network/switch problem),
the IP address moves to the other NIC. A Gratuituos ARP is done so
that everyone that has the old ARP entry will clear it, and current
connections aren't even lost. Of course, the paths from the NICs into
the network must be thru different switches to avoid single point of
failure loss at a switch.
-------------------------------------------------
Tks | <mailto:[EMAIL PROTECTED]>
BV | <mailto:[EMAIL PROTECTED]>
Sr. Technical Consultant, SBM, A Gates/Arrow Co.
Vox 770-623-3430 11455 Lakefield Dr.
Fax 770-623-3429 Duluth, GA 30097-1511
=================================================
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