No-one seems to be connected to me yet ...
You do know that in neither Multinet nor Johnny's bridge program there's
nothing to automatically re-connect when an IP address changes?? It takes
manual intervention on the part of the operator of the other end of your
link.
Bob
Hi,
Well, I'm all switched over and my new IP address (as of last week,
sorry for the delay in sending this email) is
86.10.38.192
I've updated chrissie.homelinux.net. No-one seems to be connected to me
yet ...
Chrissie
Chrissie Caulfield wrote:
Hi All,
Virgin have been mucking me about a bit. I will be upgraded to a new
cable modem next week which will mean I'll get a new IP address for ZAPHOD.
However, in the mean time they've mistakenly disconnected me and
reconnected me to a different IP!
Zaphod's current IP address is 82.8.17.191, but that WILL change next
Wednesday afternoon (GMT) so it's up to you if you change the multinet
connection in the meantime ... I won't be offended if I'm off HECnet for
a week, I'm far too busy doing other things anyway :S
I'll post the new IP address next week,
Sorry for the outage ... but it's not my fault :-(
Chrissie
--
Chrissie
On Thu, Apr 09, 2009 at 08:54:55AM -0400, Sridhar Ayengar wrote:
It was a poor attempt at humor.
HAHAHAHA, that's funny. It was so poor, I didn't even get it. ;)
-brian
--
"Coding in C is like sending a 3 year old to do groceries. You gotta
tell them exactly what you want or you'll end up with a cupboard full of
pop tarts and pancake mix." -- IRC User (http://www.bash.org/?841435)
On 9 Apr 2009, at 13:54, Sridhar Ayengar wrote:
Brian Hechinger wrote:
On Wed, Apr 08, 2009 at 11:18:14PM -0400, Sridhar Ayengar wrote:
Sampsa Laine wrote:
So if I have two dual port PCI cards, one in machine 1, one in machine 2, I wire them:
1.A. -> 2.B
2.A -> 1.B
No,
1. A -> B
2. B -> A
Which is exactly what Sampsa said in the first place.
Ignore him, Sampsa, you have the right idea.
It was a poor attempt at humor.
Yeah I looked at that at went like "hold on, that'll connect each machine to itself."
Very secure from the confidentiality and intergrity point of view I suppose, leaves something to be desired on the availability front.
Brian Hechinger wrote:
On Wed, Apr 08, 2009 at 11:18:14PM -0400, Sridhar Ayengar wrote:
Sampsa Laine wrote:
So if I have two dual port PCI cards, one in machine 1, one in machine 2, I wire them:
1.A. -> 2.B
2.A -> 1.B
No,
1. A -> B
2. B -> A
Which is exactly what Sampsa said in the first place.
Ignore him, Sampsa, you have the right idea.
It was a poor attempt at humor.
Peace... Sridhar
On Wed, Apr 08, 2009 at 11:18:14PM -0400, Sridhar Ayengar wrote:
Sampsa Laine wrote:
So if I have two dual port PCI cards, one in machine 1, one in machine
2, I wire them:
1.A. -> 2.B
2.A -> 1.B
No,
1. A -> B
2. B -> A
Which is exactly what Sampsa said in the first place.
Ignore him, Sampsa, you have the right idea.
-brian
--
"Coding in C is like sending a 3 year old to do groceries. You gotta
tell them exactly what you want or you'll end up with a cupboard full of
pop tarts and pancake mix." -- IRC User (http://www.bash.org/?841435)
Sampsa Laine wrote:
On 8 Apr 2009, at 21:34, Paul Koning wrote:
Sampsa> Anybody know how I would go about cabling such a beast, there
Sampsa> are four fibre optic ports on these things?
Wow, that takes me back a bunch of years...
Well I do try, I'm going to wire up a CBM 128D running CP/M as the OPA0: on one of these eventually :)
There are two basic FDDI cabling approches: dual ring, and tree of
concentrators. The DEFPA can be hooked up either way because it has
the two ports (type A and B ports).
If you have other FDDI devices that also have A or B ports, just plug
A to B in a circular fashion, and you have a dual ring. This is the
topology that FDDI originally started with early in its development.
So if I have two dual port PCI cards, one in machine 1, one in machine 2, I wire them:
1.A. -> 2.B
2.A -> 1.B
No,
1. A -> B
2. B -> A
to make a circle.
Peace... Sridhar
Sampsa Laine wrote:
Guys,
I've just received a DEFPA-DB PCI-FDDI adapter from ebay, my plan is to install it in CHIMPY and then connect CHIMPY to CHIMP via this for clustering.
Anybody know how I would go about cabling such a beast, there are four fibre optic ports on these things?
Also, can I route DECNET traffic over this interface - I assume not as bot machines are Alphas and they don't do routing...
http://www.siliconsamsara.org/OLD/PracFDDI/index.html
Peace... Sridhar
On Wed, Apr 08, 2009 at 04:34:06PM -0400, Paul Koning wrote:
Sampsa> Guys, I've just received a DEFPA-DB PCI-FDDI adapter from
Sampsa> ebay, my plan is to install it in CHIMPY and then connect
Sampsa> CHIMPY to CHIMP via this for clustering.
Wow, that takes me back a bunch of years...
Yeah, no kidding. I just recently picked up a pair of VAX 4000/500 boxes
and each one had a DEFQA-SA in it. Now I either need to pick up a cheap
NP-1F-D-MM for one of my Cisco 4700 routers or dust off the Sun Ultra1
that has the FDDI card in it.
Hmmmmm. No, must be good. Must move first before setting up VAXen. :)
-brian
--
"Coding in C is like sending a 3 year old to do groceries. You gotta
tell them exactly what you want or you'll end up with a cupboard full of
pop tarts and pancake mix." -- IRC User (http://www.bash.org/?841435)
"Sampsa" == Sampsa Laine <sampsa at mac.com> writes:
If you have other FDDI devices that also have A or B ports, just
plug A to B in a circular fashion, and you have a dual ring. This
is the topology that FDDI originally started with early in its
development.
Sampsa> So if I have two dual port PCI cards, one in machine 1, one
Sampsa> in machine 2, I wire them:
Sampsa> 1.A. -> 2.B 2.A -> 1.B
Sampsa> To create a circle? Do I HAVE to do this, i.e. can I just
Sampsa> wire one cable between machine 1 and 2 (the cables are
Sampsa> EXPENSIVE, like 3x what the adapter cost me)?
One connection is fine.
As I mentioned, the standard topology for A/B stations (Dual Attached
stations) is A to B in a circular fashion. That creates a pair of
rings. And that topology can handle single faults: the loss of a
single port or single cable.
If you just connect the two stations with a single cable, what you
created is a dual ring with a single fault -- one of the two cables is
missing. That will work just fine.
paul
