On Mon, 16 Aug 1999, Clint R. Sparks wrote:
Krish,
Since you seem to be so helpful with the total control stuff, I wanted to ask you a couple of questions. We use the total control Hiper DSP - Hiper Arc version using Hiper DSP code 1.2.43 and Hiper Arc code 4.1.59-6, we ran into a problem last week where two modems on our 3rd card decided to stop letting people in, it would answer then have a strange handshaking tone and disconnect the customer. I tried resetting the two modems numerous times with no luck so I busied them out until I could look into it more, the next day when the modems before the busied ones got to them we got a busy on that number, there was still plenty of modems available after the two busied ones. I ended up doing a Hardware Reset of the whole card and the two previously bad modems started working again and we have not had a problem in the last few days.
I guess my question is can you explain why the modems would quit working and why we were getting busies after I did a soft busy of the two bad modems?
The modems and the hiper arc use a packet bus protocol to communicate. This protocol is set upon reset by the modem/hiper arc. The hiper arc tells the modem to set itself on the packet bus and the modems agree. The hiper arc talks to the modem periodically. So does the modem also. However there could be a state when the modem stops talking to the hiper arc - at that point one of them have to reset and re-sync. The modem in question here has 1.2.4x code which has some issues with the packet bus - where in if the hiper arc does not get a response or if the modem sends bad corruptted data the hiper arc could remove it from service. The only way to recover that was to either reboot the DSP or the hiper arc sometimes both. This issues was resolved in the 1.2.37 and 2.x code on the DSP and on 4.1.59 code on the hiper arc.
Also, what Hiper DSP and Hiper Arc code do you recommend running right now?
4.1.59 or above on the hiper arc 2.0.81 or above on the DSP regards krish
Any insight you can give would be appreciated.
Thank you,
Clint R. Sparks ComQuest Internet Services csparks@cqc.com
----- Original Message ----- From: Tatai SV Krishnan <tkrishna@bubba.ae.usr.com> To: Sam Lowe <slowe@universalcom.net> Cc: <usr-tc@lists.xmission.com> Sent: Sunday, August 15, 1999 11:29 PM Subject: Re: (usr-tc) Link dead after 8 Days
On Mon, 16 Aug 1999, Sam Lowe wrote:
The original post is getting kind of lengthy. I'll try to address all Krish's questions.
1. The problem cannot be replicated/reproduced on demand.
Good that is nice - we can have it reproduce on demand
2. The versions of code: HiPer DSP: 1.2.59, HiPer ARC: 4.1.59,
NMC:5.5.5
I would suggest the latest DSP code, 1.2.59 DSP code is really old and had some issues - you need the latest 2.0.x code.
3. I understand these problems can take time to fix, I am just frustrated with the 3Com responses through last Thursday evening. The response from Krish was the first real help I've gotten.
4. We have implemented the MTU change. If Krish can contact me (850-337-016), we have a locked up system right now.
I would be more than willing to call you but the above phone number is not correct. Send me the correct the number.
krish
----- Original Message ----- From: Tatai SV Krishnan <tkrishna@bubba.ae.usr.com> To: K Mitchell <mitch@keyconn.net> Cc: <usr-tc@lists.xmission.com> Sent: Sunday, August 15, 1999 10:25 AM Subject: Re: (usr-tc) Link dead after 8 Days
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