[unisog] IDS "tap"

Peter Van Epp vanepp at sfu.ca
Thu Jul 19 16:26:32 GMT 2001

	A Shomiti Century tap (www.shomiti.com) does the job for 10/100baseT
and netoptics %80/%20 optical splitters (www.netoptics.com) does the job for 
fibre. Both split a FDX connection to two monitor ports (one for Tx on for
Rx) but presumably your IDS can deal with that with two RX interfaces.

Peter Van Epp / Operations and Technical Support 
Simon Fraser University, Burnaby, B.C. Canada

> My lab network connection is about to be upgraded fro 10-HDX to 100-FDX.
> I started thinking about how to implement my IDS tap on the new network...
> Right now, I just have a "dumb" hub in the link.  This creates a collision
> domain for the uplink.  I'd like to eliminate this.  
> I have not looked for one in a year or so, but does anyone know of a 
> commercial product that would let me "tap" the new 100 Mbit link
> without creating a collision domain?  I'd hate to have to buy a 
> Cisco switch, and put one port in SPAN mode just to see the traffic 
> on this link!  I have not seen any el-cheapo switches that allowed 
> anything similar to "span-mode" operation (but again, I have not been 
> following product announcements for the past 18 months).
> Thanks,
> --curt
> Curt Freeland (curt at cse.nd.edu) GCIA #0223
> Director of Facilities, Computer Science and Engineering Department
> 323A Cushing Hall,  The University of Notre Dame
> Voice: (219) 631-5893 / FAX: (219) 631-9260

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