The following are a series of tests run at a Boeing facility to
test the throughput of Cisco routers and hybridges.


Test 1:

Setup:  Two HP 4972A  Analyzers were configured  to generate packets
at a 45% background load using the provided stats program.  The com-
bined output of the  two traffic generators was  14,713 packets (64
byte packet size) per second - as indicated on the traffic monitor 
screen of the monitors.

A Cisco CGS router  containing a csc3 processor running the 8.2 o/s
software, a 2E2T MCI card w/ v1.5 micrcode was used int he testing.
A Cisco AGS+ was used as a sink for directed packets from the packet
generators.  the AGS+ contained a csc3 processor running 8.2 o/s
software and (2) MEC6 cards w/ v1.1 microcode.

Packets were addressed to the sink from the traffic generators.  A
third HP 4972A Analyzer was used to measure traffic using the stan-
dard stats program.

The following results were obtained:

     Bridging - 14,713 pps
     IP       - 14,713 pps
     IPX      - 14,713 pps
     DECnet   - 12,900 pps


A second test involved using the AGS+ as the router and the CGS as
the sink.  The tests were run between ports eth/0 and eth/1 of the 
first MEC card.

The following results were obtained:

    Bridging   - 14,713 pps
    IP         - 14,713 pps
    A/Talk P2  - 14,713 pps


A third test involved using the AGS+ as the router and the CGS as
the sink.  The tests were run between ports eth/0 of the first MEC
card and port eth/5 of the second MEC card.

The following results were obtained: 
 
     Bridging - 14,713 pps 
     IP       - 14,713 pps 
     IPX      - 14,713 pps 
     DECnet   - 12,900 pps


A fourth test was conducted using 4 HP test generators on two input
networks (ports eth/0 and eth/1 of the AGS+) and with the CGS con-
figured as a sink (off ports eth/6 and eth/7 of the 2nd MEC).  This
test involved loading the the ethernets to obtain an aggregate thru-
out the cbus in both ip routing and bridging modes.  This test was 
performed w/o the fast switching microcode for the cbus controller.

The following results were obtained:  
  
     Bridging - 15,000 pps
     IP       - 19,200 pps


A fifth test utilized the same setup, but packet lengths were changed
to 1500 bytes.  The 2 ethernets were loaded to 8.5mb/s and 9.5mb/s
respectively.  No loss of data was experienced in this scenario.  The
total throughput was measured at 18mb.


A sixth test utilized the same setup as test 4, but combined IP and
DECnet.  The mix was 1/3 DECnet and 2/3 IP.

The following results were obtained:   
   
     Mixed load - 16,900 pps


I thought the this would be of interest.


            Gary Kunis
            Boeing Network Services


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