Also sprach Charles Sprickman
On Thu, 1 Jun 2000, Jeff Mcadams wrote:
I believe I have heard the statement that TCS releases are "compatible" between consecutive releases, though certainly not supported in that configuration. So, you can use (at least in theory) TCS 3.5/3.6 DSP code (the DSP code didn't change between these releases I don't believe) with TCS 4.0. I haven't tested this at all, so don't take that as gospel, but I've been told that 3Com at least puts some effort into making that be the case.
I was actually looking at doing the opposite; staying with my ARC code for now and trying the new DSP code on a few racks for a few days...
I think it goes both ways, so you'd be fine. Again though, this certainly isn't anything that's tested.
I was going to try the NMC as well, but it looks like that might not be advisable if it will actually make snmp slower (how is that possible?).
You'd think they could do everything the NMC needs to do in a 486 without much optimization. I mean, it's not running a GUI or anything...
Well...the slowdown is a result of getting the data over the management "bus" from the cards. If its getting data from the NMC itself, it screams...orders of magnitude faster than the old code. The management bus is basically a individual set of serial lines for each card though, so its not like you've got ethernet bandwidth there or anything to work with. I think I remember seeing that the management lines to the NACs are 512kbps, which is pretty quick, but its certainly going to be slower than the NMC grabbing the data internally (ie, not over the management lines).
FWIW, the Arc code really is pretty solid at this point as long as you don't try to take advantage of new features. I'd say you'd be fine upgrading to new Arc code as long as you test out any new functionality that you take advantage of.
I'm just about to read the release notes, I'm curious about this "interim release" I have to do between 4.2x and 5.0.x...
I don't remember having done that, but I might have. Does make the upgrade process a bit more disruptive, but this is the only time you'll have to do that. Ok...found in the release notes where its talking about it. The older code can't download a file that big into flash ROM, once you get on the newer code though, you're back to normal upgrades (assuming you don't run out of flash, which is getting to be a concern with these bigger images...older Arcs only had 8megs of flash ram) -- Jeff McAdams Email: jeffm@iglou.com Head Network Administrator Voice: (502) 966-3848 IgLou Internet Services (800) 436-4456 - To unsubscribe to usr-tc, send an email to "majordomo@xmission.com" with "unsubscribe usr-tc" in the body of the message. For information on digests or retrieving files and old messages send "help" to the same address. Do not use quotes in your message.