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- TCP-Group Digest Sat, 22 Sep 90 Volume 90 : Issue 145
-
- Today's Topics:
- Automatic vs. Manual routing
- For *real* network weenies only ...
- manual vs. automatic routes
- Problems with compiling NOS
- Problems with Unix V and NOS
- RTX-2000 help and thanks
- Terminal Emulation in G1EMM NOS
- Update on NOS from PA0GRI
-
- Send Replies or notes for publication to: <TCP-Group@UCSD.Edu>.
- Subscription requests to <TCP-Group-REQUEST@UCSD.Edu>.
- Problems you can't solve otherwise to brian@ucsd.edu.
-
- Archives of past issues of the TCP-Group Digest are available
- (by FTP only) from UCSD.Edu in directory "mailarchives".
- ----------------------------------------------------------------------
-
- Date: Fri, 21 Sep 90 09:03:40 -0700
- From: "Milo S. Medin" (NASA ARC NSI Project Office) <medin@nsipo.nasa.gov>
- Subject: Automatic vs. Manual routing
- To: Brian Lloyd <brian@robin.telebit.COM>
-
- Brian, SPF protocols do in general have the features you mentioned, but they
- are extremely complicated and hard to get right. Furthermore, in the
- radio environment where links are going up and down all the time, you
- may see even more traffic than the usual distance vector case unless
- specific action is taken to suppress this. Though a lot of things have
- to to be flapping to exibit this behavior.
-
- Thanks,
- Milo
-
- PS I'm pretty much pro-SPF in terms of the way I look at routing protocols,
- but they aren't a panacea...
-
- ------------------------------
-
- Date: 21 Sep 90 19:36 -0700
- From: Doug Collinge VE7GNU <djc@samisen@uvicctr.uvic.ca>
- Subject: For *real* network weenies only ...
- To: tcp-group@ucsd.edu
-
- >X-Mailer: Mush 6.5.6 (PC R6.3 22-Sep-89)
-
- Given a CSMA channel with:
- a) fixed packet length Tp;
- b) random delay, t, from channel available until a transmitter commits
- to transmit Poisson distributed with persistence parameter u;
- c) fixed delay, Td, from commitment to transmit until the other stations
- are aware of the transmission;
- d) channel loaded such that there are always exactly n stations wanting
- to transmit whenever the channel comes available.
-
- What is the value of u as a function of Tp, Td, and n that will optimize the
- channel throughput given that a station A will jump on station B if A decides
- to transmit during B's Td delay?
-
- This sounds tractable; probably the realworld case with variable packet
- length (with some bizarre distribution, no doubt) and variable channel
- loading is not.
-
- What difference does CSMA/CD make?
-
- What is your favourite network book I can look it up in?
-
- doug
-
-
-
- --
- /\/\/\/\/\/
- Doug Collinge, first try: collinge@uvicctr.uvic.ca
- then try: samisen!djc@uvicctr.uvic.ca
- VE7GNU VE7GNU@VE7GNU.#VIC.BC.CAN.NA
- Victoria, BC, Canada
-
- ------------------------------
-
- Date: Fri, 21 Sep 90 09:25:33 CDT
- From: mwester@sunbird.Central.Sun.COM (Mike Westerhof SE Chicago Metro)
- Subject: manual vs. automatic routes
- To: tcp-group@ucsd.edu
-
- ----- Begin Included Message -----
-
- >From gil@w9bub Thu Sep 20 21:36:03 1990
- Reply-To: gil@w9bub
- Subject: manual vs. automatic routes
-
- "Where's the window in the capsule?"
- "Why a window. You're only a passenger."
- "Put the window in. We're the pilots not passengers."
-
- --from THE RIGHT STUFF
-
- Gil
-
- ----- End Included Message -----
-
- ------------------------------
-
- Date: Fri, 21 Sep 90 8:58:16 CDT
- From: brainiac!jrc (Jeffrey Comstock)
- Subject: Problems with compiling NOS
- To: shamash!ucsd.edu!tcp-group@umn-cs.cs.umn.edu
-
- >
- > I 'm having trouble trying to compile the 0828 version of NOS. It seems
- > that some header files aren't being included in the source and I constantly
- > get undefined structures. I've had this problem with every version of NOS
- > I've tryed to compile. Am I missing some crucial file that needs to be
- > present? Is there anything that I need to set in TURBOC.CFG?
- >
- > Any help would be appreciated,
- > Bill Brown
- > University of Central Florida Computer Services
- > Internet: brown%ucf-fs200@langate.cc.ucf.edu
- > BITNET: BROWN@UCF1VM.BITNET
- >
-
- If you end up with net.exe after the linker runs, everything is ok. All
- those messages are just warnings. I don't have my manual handy right now,
- but you can put 2 switches in CFLAGS to make most of them stop from
- printing. It seems one was -w-par. The source for KA9Q 900828 yields an
- executable here, so the source archive on thumper is ok.
-
- Jeff
-
- ------------------------------
-
- Date: Fri, 21 Sep 90 17:30 MDT
- From: taten@syskga.se (Bosse Strinnholm)
- Subject: Problems with Unix V and NOS
- To: tcp-group@ucsd.edu
-
- I 'm having trouble trying to run the 0714 version of NOS under
- Unix SysV.3 (386/ix) on a 386-SX machine.
- It seems to commit suicide after just some few minutes.
- I'm using SM0RGV(Anders Klemets) Unix-porting-kit.
-
- Any help would be appreciated,
- Bosse Strinnholm
- Systemering Inc., Karlskoga, Sweden
- taten@syskga.se
- SM4TMD @ SM4TFE
-
- ------------------------------
-
- Date: Fri, 21 Sep 90 12:31:45 EDT
- From: idacrd!mac@uunet.UU.NET (Robert McGwier)
- Subject: RTX-2000 help and thanks
- To: tcp-group@ucsd.edu
-
- Howdy:
-
- Recently I place a call for help in getting development tools for the Harris
- RTX-2000. As I told you later, the response was great and I wish to
- thank one in particular. Tom Sefranek, WA1RHP, has made an indefinite
- loan of his RTXDS and development tools to AMSAT for the development of code
- for this engine. The RTX-2000 wil fly soon on RS-14 (RO-21 after launch)
- and on Phase III-D (the follow on to Oscar 13). AMSAT-NA, AMSAT-DL, and
- well all of us thank Tom for this kind loan.
-
- Bob McGwier
- <N4HY>
-
- ------------------------------
-
- Date: Fri, 21 Sep 90 9:04:26 CDT
- From: brainiac!jrc (Jeffrey Comstock)
- Subject: Terminal Emulation in G1EMM NOS
- To: shamash!ucsd.edu!tcp-group@umn-cs.cs.umn.edu
-
- Right now, the best you can do is change things on the Sun. Change your
- environment to think you have a dumb term. For the cshell, try this:
-
- setenv TERM dumb
- set term=dumb
-
- This will not put you in full screen mode on vi, but it won't make your
- video go off the deep end either.
-
- Jeff
-
- ------------------------------
-
- Date: Fri, 21 Sep 90 09:11:50 CDT
- From: gvdg%CDCCENTR.BITNET@CUNYVM.CUNY.EDU
- Subject: Update on NOS from PA0GRI
- To: tcp-group@ucsd.edu
-
- Hello All,
- Sorry , i will miss al the cnc funn, i come a week late to the USA.
- I will be in Minneapolis from sept 29 till nov 2nd and from nov 2nd
- till nov 4rth in Baltimore. (company paid vacation trip. (last part))
- I also came back from vacation and got Phil's 0828 nos over.
- I intergated on what Phil has done and also added Anders rspf and forth bits.
- I added some #ifdefs and it realy stayes out if forth or rspf are undeffed
- in config.h . I also added a check in rspf.c routine dointerface to check
- that interface->broadcast is set to something else than its default zero.
- That also seems to be the ARP problem (gateway == 0 && broadcast ==0) in arp.c
- I added some #includes for type declarations.
- The forth part is realy messy (sorry to put it that way). docolon releases
- garbage after a second fcompile call. Cleaning the freed fc-> moves the
- garbage release after the quit but now more than one docolon can be done.
- Guess the pc memory is not clear(ed) enough.
- Anyway i uploaded nose0828.zip and noss0828.zip onto thumper and Phil will
- undoubtly move it to the pa0gri directory. Sorry that i left some unsigned
- creatures (bugs) in 0819 version (phil , please remove).
- I added some rspf and forth dock in usernos but am not complete yet.
- ps: anders : in doload() if unable to load message change &s into %s.
- ps: phil: in ftpcli change the s% back into %s please.
- Regards, Gerard.
-
- ------------------------------
-
- End of TCP-Group Digest
- ******************************