December 1999 - USR-TC - mailman.xmission.com

(usr-tc) [SUMMARY] slow MLPPP on HiPerARC
by ROC Services 08 Dec '99

08 Dec '99

After a little correspondence in private with a helpful and clueful 3Com employee (thank you), we've figured out the cause of the slow MLPPP we have been seeing with the HARC. It seems that the HARC does not fragment packets for MLPPP, it simply round-robins them out the interfaces. While this doesn't cause performance problems with sane protocols such as TCP, the software that our customer is using attempts to reinvent TCP over UDP. Badly. It sends one big packet, then waits for an ACK before sending the next one. The net result of this is that on a simple "ping" style test, a multilink bundle of any number of links won't show a significantly lower roundtrip time than a single link would. Also, I mentioned "mon ppp" showing traffic over only one interface on a multilink connection. This was confirmed as a "mon ppp" issue by 3Com. The "TAP USER" function shows traffic distributed across all interfaces. The "mon ppp" problem is slated to be fixed in upcoming releases, and there are plans to add a configurable parameter and/or RADIUS VSA to cause the HARC to fragment outgoing packets on multilink. As a temporary workaround until this code is available, we've found that lowering the link MTU for this particular customer alleviates the problem. It should be noted, however, that lowering MTUs may cause problems accessing certain sites that block all incoming ICMP. - To unsubscribe to usr-tc, send an email to "majordomo(a)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.

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Re: (usr-tc) X2 Key still necessary
by Todd Keister 07 Dec '99

07 Dec '99

The X2 key is a Feature Enable that is entered in to your NMC card on Quad chassis only. DSP cards come with V.90 enabled already. It is only an issue for Quad chassis and the presence of a NETServer, Hiper Arc, or Edgeserver Pro is completely not relevant. The only time trouble arises is if/when the X2 key gets lost or corrupted on the NMC. The the X2 key (just an alphanumeric string) then must be re-entered. Most frequently we see this when someone has an NMC that goes south (electrical storms anyone???) and then the key must be re-entered on the new NMC card. We have files listing all registered X2 key holders, but this particular database is much easier to access if we have proof of ownership. So if anyone has a problem with a lost X2 key, just call us at Tech Support. We are here to help. Tech Support: (800) 231-8770. Hope this helps to clarify this issue and answer everyones questions. Todd ;-} Jeff Mcadams <jeffm(a)iglou.com> on 12/07/99 11:10:20 AM Please respond to usr-tc(a)lists.xmission.com Sent by: Jeff Mcadams <jeffm(a)iglou.com> To: usr-tc(a)lists.xmission.com cc: (Todd Keister/MW/US/3Com) Subject: Re: (usr-tc) X2 Key still necessary Thus spake Blue Moon Network Administrator >On Tue, 7 Dec 1999, Jeff Mcadams wrote: >> NETServer/HARC has nothing to do with it...they just see "serial ports" >> on the packet bus from the modem cards (either quad or DSP). If you >> have Quad modem cards, you have to have the key...DSP's have v.90 >> hard-coded into them, and as such don't require the key. >But do the HARC/DSP systems need an X2 key to do X2, I KNOW they have v.90. Oh...no...x2 and v.90 are controlled together by the x2 key. -- Jeff McAdams Email: jeffm(a)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(a)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. - To unsubscribe to usr-tc, send an email to "majordomo(a)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.

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Re: (usr-tc) X2 Key still necessary
by Steve Valiunas 07 Dec '99

07 Dec '99

Flashing new code to an NMC will not remove previously installed feature enable keys. Code for the various cards is tested and released in matched 'systems releases', the latest being TCS3.5. I know of no reason why you should not run the code from this release. Someone else with more operational experience might be able to tell you specific quirks that they may have found. You may find some unusual behavior if you mix codes from different releases within the same chassis. The Software Compatibility Matrix is posted on http://totalservice.3com.com and documents what codes are included in each release. TCS3.5 includes NMC 6.0.9/6.1.17/6.2.17, and Quad 6.0.6/6.1.6. Steve V Steve Rivera <sales(a)wrca.net> on 12/07/99 08:50:04 AM Please respond to usr-tc(a)lists.xmission.com Sent by: Steve Rivera <sales(a)wrca.net> To: usr-tc(a)lists.xmission.com cc: (Steve Valiunas/MW/US/3Com) Subject: Re: (usr-tc) X2 Key still necessary Is it possible to lose that enable key in the flashing process? If I am installing a v90 NMC to a chassis that had not been running v90 standard, Is the card all I need to install. Some people have mentioned that you have to match the code on the modems. Is that true? Can anyone suggest a stable, v90 compatible sequence for the modems (Quad Digitals) and the NMC v90? At 07:34 AM 12/07/1999 -0600, you wrote: >You need only add the X2 key to a chassis once. Any quad modem code upgrdes >after that will then use the same key. > >Steve > > > > >Ralph Helfenberger <r.helfenberger(a)comlight.ch> on 12/07/99 04:38:45 AM > >Please respond to usr-tc(a)lists.xmission.com > >Sent by: Ralph Helfenberger <r.helfenberger(a)comlight.ch> > > >To: TotalControl Mailing List <usr-tc(a)lists.xmission.com> >cc: (Steve Valiunas/MW/US/3Com) >Subject: (usr-tc) X2 Key still necessary > > > > >Hi everybody >I would like to upgrade a Netserver/Quadmodem based Chasis to V.90. When >I did this last year I had to buy a X2 enable key. This product is no >longer available. So the question I have: Is this key still necessary? >Or do I just upgrade the Quadmodems to the latest code and then I have >V.90 automatically enabled? > >Ralph > >-- >========================================================================== >R. Helfenberger Internet r.helfenberger(a)comlight.ch >Comlight AG Tel +41 31 740 40 40 >Industriestr. 17 Fax +41 31 740 40 90 >3178 Boesingen >Switzerland www.comlight.ch >========================================================================== > >- > To unsubscribe to usr-tc, send an email to "majordomo(a)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. > > > > > >- > To unsubscribe to usr-tc, send an email to "majordomo(a)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. - To unsubscribe to usr-tc, send an email to "majordomo(a)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. - To unsubscribe to usr-tc, send an email to "majordomo(a)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.

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Re: (usr-tc) X2 Key still necessary
by Steve Valiunas 07 Dec '99

07 Dec '99

You need only add the X2 key to a chassis once. Any quad modem code upgrdes after that will then use the same key. Steve Ralph Helfenberger <r.helfenberger(a)comlight.ch> on 12/07/99 04:38:45 AM Please respond to usr-tc(a)lists.xmission.com Sent by: Ralph Helfenberger <r.helfenberger(a)comlight.ch> To: TotalControl Mailing List <usr-tc(a)lists.xmission.com> cc: (Steve Valiunas/MW/US/3Com) Subject: (usr-tc) X2 Key still necessary Hi everybody I would like to upgrade a Netserver/Quadmodem based Chasis to V.90. When I did this last year I had to buy a X2 enable key. This product is no longer available. So the question I have: Is this key still necessary? Or do I just upgrade the Quadmodems to the latest code and then I have V.90 automatically enabled? Ralph -- ========================================================================== R. Helfenberger Internet r.helfenberger(a)comlight.ch Comlight AG Tel +41 31 740 40 40 Industriestr. 17 Fax +41 31 740 40 90 3178 Boesingen Switzerland www.comlight.ch ========================================================================== - To unsubscribe to usr-tc, send an email to "majordomo(a)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. - To unsubscribe to usr-tc, send an email to "majordomo(a)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.

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(usr-tc) WTB: 3- USR NMC v90 NIC/NAC Sets
by Steve Rivera 06 Dec '99

06 Dec '99

Looking to purchase 3 of the USR Total Control NMC cards w/ nic. They have to be v90 enabled. Please email if you have them. .................................................... Steve Rivera - ISP-NetworkHardware.com (WRCA) sales(a)wrca.net v-732-833-2111 pgr-732-325-1092 ---WAN ACCESS SPECIALIST--- http://www.ISP-NetworkHarware.com Cisco, Ascend, Livingston, USR, Microcom, Computone, Kentrox, Adtran...and more - To unsubscribe to usr-tc, send an email to "majordomo(a)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.

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(usr-tc) 16MB NMC dead after flashing
by Blue Moon Network Administrator 06 Dec '99

06 Dec '99

Flashed the NMC up to nm060009 and after 40 minutes of waiting after it reported success and said it was checking nac status with the RN/FL light flashing green and hub status off entirely we tried resetting the NMC via the console. That brought it back to the same state, RN/FL light flashing green and hub status off totally. I removed the NMC NAC and that didn't help then pulled the backend NIC and that didn't help. Also shutdown the chassis entirely and that didn't change anything. I'm still stuck at the flashing green RN/FL light and get nothing on the console except an occasional single character when the nic/nac is reinserted. How do I get it back? Can I use the NORMAL/CLEAR jumper on the NAC to get it into some kind of dumb mode where I can upload some firmware to it to at least get back to where I started? How long should an NMC upgrade actually take on a clear switched lan? J. Henry Priebe Jr. Blue Moon President & Network Administrator root(a)bluemoon.net net.bluemoon.net - Blue Moon Online System V.90, X2 & K56flex www.railfan.net - The Railfan Network http://www.bluemoon.net mud.bluemoon.net 4000 - MoonMUD bbs.bluemoon.net irc.bluemoon.net - ZUHnet Buffalo, NY IRC Server - To unsubscribe to usr-tc, send an email to "majordomo(a)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.

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(usr-tc) Kudos to Netdoor
by Brian 06 Dec '99

06 Dec '99

Didn't know if anyone else saw the Inter@active week article (Nov. 29, vol. 6, no. 49) where they did a nice article on Netdoor and Marshall Morgan "Opening the Net Doors in Jackson". Its interesting seeing familiar faces here in print.......and I can sort of relate to the article being in Louisiana which isn't that far (geographically and economic wise) from Mississippi. Brian ----------------------------------------------------- Brian Feeny (BF304) signal(a)shreve.net 318-222-2638 x 109 http://www.shreve.net/~signal Network Administrator ShreveNet Inc. (ASN 11881) - To unsubscribe to usr-tc, send an email to "majordomo(a)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.

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(usr-tc) NMC resolved, on to DSP 2.0.60
by Blue Moon Network Administrator 04 Dec '99

04 Dec '99

Ok the 16MB NMC NAC is at 6.1.17 The ARC NAC is at 4.1.25 The DSP NAC's are 1.2.5 TCM is 6.0.23 I'm back in TCM, I go to software download, select Slot2 DSP with the check mark, select the hd020060.dmf file and when I tell it to start the DL it pops up a Slot2 requestor which says "Error Reading File Description" I repeat the processes trying with hd020810.dmf and it does the same thing. WHEE, I'm still an idiot.....! J. Henry Priebe Jr. Blue Moon President & Network Administrator root(a)bluemoon.net net.bluemoon.net - Blue Moon Online System V.90, X2 & K56flex www.railfan.net - The Railfan Network http://www.bluemoon.net mud.bluemoon.net 4000 - MoonMUD bbs.bluemoon.net irc.bluemoon.net - ZUHnet Buffalo, NY IRC Server - To unsubscribe to usr-tc, send an email to "majordomo(a)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.

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RE: (usr-tc) chat_script synta
by Stainforth, Matthew 04 Dec '99

04 Dec '99

I think we've all been in that situation at least once. Some of us more than once *cough*. Matthew > I have been studying this thing for about 60 hours now and I > still feel like a > complete and total out of control idiot. > > J. Henry Priebe Jr. Blue Moon President & Network Administrator - To unsubscribe to usr-tc, send an email to "majordomo(a)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.

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Re: (usr-tc) chat_script synta
by Blue Moon Network Administrator 03 Dec '99

03 Dec '99

On Fri, 3 Dec 1999, Tatai SV Krishnan wrote: > The default password on the nmc is your community strings which is > public/private > > Now if you NMC is in a dead state you need to do the old pcsdl to the nmc > to get it back. Our strings were set, we never leave them at the defaults. It looks like the NMC is dead, just stays in the SDL state with the green RN/FL flashing and no other lights. I don't think the PC SDL will even begin to talk to it.... I don't know what versions the -n and -v options want put in, nothing is explained and nothing works. pcsdl -p2 -r57600 -vSD6.0.9 -vNA3.2.0 -nSDnm -nNAnm ^ I don't know what version it means by Operation Code Version, what exactly is Operation Code? Is tha existing code or the sdl file version and if it is the sdl version file how do you find the version, the file is named nm030200.sdl and there is no mention of it anywhere else. None of this is explained in the pdf files and I have found no reference in the only searchable list archiev available. Why is this all so cryptic and why is it not explained anywhere in available documentation. I have been reading PDF files for three days and have not once seen a pcsdl explanation other than just do it. Is it part of the pay us tech support money mentality to be able to do simple things? This is maddening and it just seems to get worse, now our HARC TC is totally unusable. J. Henry Priebe Jr. Blue Moon President & Network Administrator root(a)bluemoon.net net.bluemoon.net - Blue Moon Online System V.90, X2 & K56flex www.railfan.net - The Railfan Network http://www.bluemoon.net mud.bluemoon.net 4000 - MoonMUD bbs.bluemoon.net irc.bluemoon.net - ZUHnet Buffalo, NY IRC Server - To unsubscribe to usr-tc, send an email to "majordomo(a)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.

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