We were asked to capture some traffic destined for internal ftp servers. Enabled SPAN on a 6K switch (monitoring 2 ports) and attached a capture dev= ice to the switch. Right after we enabled SPAN, we started getting complain= ts that some ASCII files uploaded to ftp servers were getting corrupt. Spec= ifically, in some file locations, character "|" was getting replaced with "= t".
Being a Cisco "expert", I told my users that the switch does layer 2/3 proc= essing and has no way of corrupting specific ASCII characters since it does= n't deal with that layer. My assumption was, that if SPAN was somehow intro= ducing noise to the packets, it would corrupt random bits and not specific = ASCII characters.
After a few weeks of endless complaints, I disabled SPAN and no corruption = has been reported since. WTF????
Thanks Ron