SPAN TEST

Devices:
Main: Catalyst 3524 XL
Source: i386 Linux
Destination: Sun Sparc Netra T1 AC200
Sniffer: i386 Win2k

Catalyst config:
interface FastEthernet0/3
description source
switchport access vlan 10
switchport multi vlan 10,20
switchport mode multi
no cdp enable
end
interface FastEthernet0/16
description destination
switchport access vlan 20
no cdp enable
end
interface FastEthernet0/17
description sniffer
port monitor FastEthernet0/16
switchport access vlan 20
no cdp enable
end

Testing script:
#!/usr/bin/perl
$ping="/bin/ping";
$ip="10.0.0.10";
# start_len,stop_len,step,packet_size,ip
&test(100,2000,100,100000);
&test(1000,50000,10000,10000);
sub test(){for($len=$_[0];$len<=$_[1];$len+=$_[2]){
@z=`$ping -fqn -c $_[3] -s $len $ip`;
@zz=split(/\s+/,$z[3]);
$lost=$zz[0]-$zz[3];
print "$count $lost $zz[6] $len\n";};};

See packet lost result