🚀 go-pugleaf

Hi - PTX 1.1.1 here on 3xS27's + 2xS81's...

One of our S81's has enough tcp connections that we've had to buy a second
SCED card (each SCED card will carry up to 256 tcp connections, a hard
limit).  We want to put it on the same LAN as the first, as our entire
organization operates on one big LAN (composed of 400 PC's, 30 UNIX
workstations, 6 UNIX mainframes, and numerous printer servers).  The idea
here is that some people would telnet to the first SCED card, and others to
the second SCED card, thereby distributing the tcp-connections load evenly
among the two SCED cards and avoiding problems by overflowing one or the
other.

When the two SCED cards' IP addresses are set to be 89.0.0.5 and 89.0.0.40,
the second SCED card end up transmitting ALL outbound packets; netstat -i
looks like this:

Name  Mtu   Network     Address            Ipkts    Opkts    Odrop
loop  1536  loopback-ne loopback               0        0        0
se1   1500  89.0.0.5    john2             664420  1480083        0
se0   1500  89.0.0.40   john             1347890        0        0

...as you can see, the first SCED card sends no outbound packets; hence,
the second SCED card ends up trying to carry > 255 tcp connections.

Something else I've tried: using IP addresses on different network numbers
(ie. 89.0.0.5 and 88.0.0.40), but we can't reach the 2nd SCED card, even
when I manually put entries for the 2nd SCED card in all machines' ARP
tables.

Bottom line question: how does one configure 2-SCEDs-on-1-LAN system ???  
Unisys (our OEM vendor) hasn't been much help.
-- 

Pete Gregory       |  Internet: pete@wvus.org
UNIX SA            |  Bangpath: ames!elroy!wvus!pete
World Vision U.S.  |  Slowpath: 919 W. Huntington Dr., Monrovia, CA 91016