Re: SPAN port on Cat5500-Performance?

2000-05-11 Thread Pete Ruttman (adminpr)

I generally just use set span "source vlan" mod/port#  and then plug your 
sniffer in.
I have several switches with 200 users (10/100rj45) and 300 users (rj21) 
and receive no significant hit.  

You can use ps -c to check switch performance.

Don't use the set span enable.  Everytime I tried this, the switch needs to 
be rebooted.  I haven't figured out why yet.  

also remember that the the port that you are spanning to (the one with the snffer) 
cannot be used as a regular network port anymore.  Spanning disables that ability and 
it can only be used to watch the spanned packets.
So you can't test for things on the sniffer PC.  

pete



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Re: SPAN port on Cat5500-Performance?

2000-05-10 Thread Huy Tran

I generally just use set span "source vlan" mod/port#  and then plug your 
sniffer in.
I have several switches with 200 users (10/100rj45) and 300 users (rj21) 
and receive no significant hit.  

You can use ps -c to check switch performance.

Don't use the set span enable.  Everytime I tried this, the switch needs to 
be rebooted.  I haven't figured out why yet.  

[EMAIL PROTECTED] ("info") wrote in 8f768o$4ji$[EMAIL PROTECTED]:

Was wondering if anyone had any performance problems
on a Cat5500 after setting up a span port to span a vlan
with about 100 machines attached. Are there any issues
I should be aware of before doing this? the set span
command has a variable I am unsure about.
rx|tx|both can someone explain to me what these
three options mean.obviously its receive/transmit/both
but maybe if I knew what those meant in terms of hte
difference between the Span port and the rest of the
ports actually, any generic information about span
ports is much appreciated!

-B


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