Very Computer

Is it possible to use two ethernet cards on the same IP address to
increase the throughput for a system?

I work with a machine in which we now have two ethernet cards (3Com
Etherlink II/16TP and Etherlink III EISA).  I attempted to set them both
up on the same address, assuming they would load balance (as, I
understand, can be done with some serial connections).  They are both
recognized, but when I execute "ifconfig", I get the following (IP and HW
addresses removed for security purposes-my sys admin is relatively new,
and a little paranoid about security :) :

eth0      Link encap:10Mbps Ethernet  HWaddr aa:bb:cc:dd:ee:ff
          inet addr:uu.vv.ww.xx  Bcast:uu.vv.ww.yy  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:9664357 errors:0 dropped:0 overruns:0
          TX packets:640235 errors:0 dropped:0 overruns:0
          Interrupt:5 Base address:0x300 Memory:cc000-ce000

eth1      Link encap:10Mbps Ethernet  HWaddr ll:kk:jj:ii:hh:gg
          inet addr:uu.vv.ww.xx  Bcast:uu.vv.ww.yy  Mask:255.255.255.0
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:9763629 errors:2688 dropped:2688 overruns:2752
          TX packets:7658 errors:0 dropped:0 overruns:0
          Interrupt:10 Base address:0x8000

I'm still new to the networking side of linux, so can someone please help
me on this?  Any help deeply appreciated.  I don't get to check the groups
that often, so please email responses.  Thank you.

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In light of everyone telling me that what I intended to do would
not work (and that I probably should not be expecting the system to work
either, due to potential conflicts), I have another question.  I have now
set eth1 up to possess another IP address (/etc/rc.inet1); however, I
can't so much as ping the address and get a response (64 packets
transmitted, 100% packet loss).  What did I forget to do (the only change
I did make was in /etc/rc.inet1).  Again, any response deeply appreciated.

I'd also like to thank everyone who responded to my earlier inquiry
(attached below).  
==============================================================================

If the two cards are not on the same ethernet segment, you will need
to specify a route to the other IP address. Something like...

 route add -host xx.yy.zz.123 eth1

Of course 'man route' should illuminate the specific syntax.

(mailed & posted)

--
Regards,
--------
Mark Bakarich,  Engineer, Tucson Arizona