Re: Adapter failover using Virtual IP and Proxy ARP -- one questi on

Charles,

  Yep, the big switch could be the answer for sure. Its likely it will
do OK.

  For most traffic it isn't going to matter which port you get except
for big stuff like FTP and large ODBC connections. What I can't remember
is which of the interfaces get's the call for the virtual.  You may be
right that it's the first one up within the subnet. I just can't remember.

  - Larry

CWilt@xxxxxxxxxxxx wrote:

Charles,

It's possible that you could make this work but only if you have a bridge between the T-R and Enet segments of your network. Even then though the bridge would have to pass the gratuitous ARP packets which are sent out when an adapter fails.. What I'm not sure of now is how you make the T/R and Enet adapters work on the same IP subnet without confusing the system or the client systems. What are your IP addresses and subnet masks for the various interfaces?

Yea, I wondered about that one myself.

According to the Network guy, we've got a particular switch that cost us 18K
8 years ago that handles it seamlessly.

The interfaces are:
Token xxx.xxx.114.32 Fiber xxx.xxx.114.91 Ether xxx.xxx.114.232
Ether xxx.xxx.114.233

netmask is 255.255.255.0 for all of them.

Ah yes, the schowler routes.  Thanks for reminding me.  I've got that
document here too.

Question: if I include the TR.  Is there anyway to make sure the virtual IPs
don't associate to it unless everything else is down?  I seem to recall
seeing something about the virtual IPs associating to whatever interface
comes up first.  I really don't want 100Mb ethernet traffic being routed
over 16Mb TR unless absolutely necessary ;-)

Charles

Larry Bolhuis                   IBM eServer Certified Systems Expert:
Vice President                    iSeries Technical Solutions V5R2
Arbor Solutions, Inc.             iSeries LPAR Technical Solutions V5R2
1345 Monroe NW Suite 259          iSeries Linux Technical Solutions V5R2
Grand Rapids, MI 49505            iSeries Windows Integration Technical
Solutions V5R2
                               IBM eServer Certified Systems Specialist
(616) 451-2500                    iSeries System Administrator for
OS/400 V5R2
(616) 451-2571 - Fax              AS/400 RPG IV Developer
(616) 260-4746 - Cell             iSeries System Command Operations V5R2