RE: Virtual Token Ring Interface [7:519]

2001-04-16 Thread [EMAIL PROTECTED]

-- Forwarded by Jenny Mcleod/NSO/CSDA on 17/04/2001
03:10 pm ---


"ElephantChild" @groupstudy.com on 15/04/2001 06:51:39 am

Please respond to "ElephantChild" 

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Subject:  RE: Virtual Token Ring Interface [7:519]


On Sat, 14 Apr 2001, Howard C. Berkowitz wrote:

 I still struggle with the question of whether the token rotates in
 the opposite direction in the Southern Hemisphere.

It does, except when you lift your whole network gently and flip it
upside down.

JMcL: Ouch.  Just imagine the gyroscopic effect THAT would create on a
heavily loaded ring :-)




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RE: Virtual Token Ring Interface [7:519]

2001-04-15 Thread Chuck Larrieu

I find most of CCO to be in that category ;-

-Original Message-
From:   Circusnuts [mailto:[EMAIL PROTECTED]]
Sent:   Saturday, April 14, 2001 10:47 AM
To: Chuck Larrieu; [EMAIL PROTECTED]
Subject:Re: Virtual Token Ring Interface [7:519]

Do they have a paper of "DUH ???" as Raul suggests I pursue that one too :o)

Phil

- Original Message -
From: Chuck Larrieu 
To: 
Sent: Saturday, April 14, 2001 12:47 PM
Subject: RE: Virtual Token Ring Interface [7:519]


 Don't have time to look into this more deeply today. Try


http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121cgcr/ibm_
 c/bcprt2/bcdovnet.htm

 CCO has several pages about virtual token-ring interfaces. They had
 something else in mind apparently, when developing the concept. But it may
 well be adaptable to a home-lab situation.

 Chuck

 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of
Raul
 F. Fernandez
 Sent: Saturday, April 14, 2001 9:17 AM
 To: [EMAIL PROTECTED]
 Subject: RE: Virtual Token Ring Interface [7:519]

 I believe one of the papers in the certificationzone.com talks about this.
 In fact it is the Token Ring paper. DUH!

 Raul

 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
 Circusnuts
 Sent: Saturday, April 14, 2001 10:56 AM
 To: [EMAIL PROTECTED]
 Subject: Re: Virtual Token Ring Interface [7:519]


 Any taker's yet John ???  I have never heard of such a thing...  I know
the
 Telco provisions virtual FDDI rings or section of bandwidth in our local
DC
 MAN, but ya gotta be hooked to the physical to take part.

 Phil

 - Original Message -
 From: John Neiberger
 To:
 Sent: Friday, April 13, 2001 5:52 PM
 Subject: Virtual Token Ring Interface [7:519]


  A while back we were discussing home lab equipment purchases.  While on
  the topic of token ring, someone suggested that it was not necessary to
  buy any routers with token ring interfaces because we could make use of
  the virtual-tokenring interface.
 
  Being new to token ring and its related configurations, I'm wondering
  if any of you have heard of ways to use this successfully in a home lab
  (or any lab, for that matter.)  If I could practice with token ring and
  SRB without shelling out more bucks for two more routers I'd be quite
  pleased.
 
  any thoughts, hints, tips, or suggestions?
 
  Thanks,
  John
  FAQ, list archives, and subscription info:
 http://www.groupstudy.com/list/cisco.html
  Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
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 Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
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Re: Virtual Token Ring Interface [7:519]

2001-04-14 Thread Circusnuts

Any taker's yet John ???  I have never heard of such a thing...  I know the
Telco provisions virtual FDDI rings or section of bandwidth in our local DC
MAN, but ya gotta be hooked to the physical to take part.

Phil

- Original Message -
From: John Neiberger 
To: 
Sent: Friday, April 13, 2001 5:52 PM
Subject: Virtual Token Ring Interface [7:519]


 A while back we were discussing home lab equipment purchases.  While on
 the topic of token ring, someone suggested that it was not necessary to
 buy any routers with token ring interfaces because we could make use of
 the virtual-tokenring interface.

 Being new to token ring and its related configurations, I'm wondering
 if any of you have heard of ways to use this successfully in a home lab
 (or any lab, for that matter.)  If I could practice with token ring and
 SRB without shelling out more bucks for two more routers I'd be quite
 pleased.

 any thoughts, hints, tips, or suggestions?

 Thanks,
 John
 FAQ, list archives, and subscription info:
http://www.groupstudy.com/list/cisco.html
 Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]




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RE: Virtual Token Ring Interface [7:519]

2001-04-14 Thread Raul F. Fernandez

I believe one of the papers in the certificationzone.com talks about this.
In fact it is the Token Ring paper. DUH!

Raul

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Circusnuts
Sent: Saturday, April 14, 2001 10:56 AM
To: [EMAIL PROTECTED]
Subject: Re: Virtual Token Ring Interface [7:519]


Any taker's yet John ???  I have never heard of such a thing...  I know the
Telco provisions virtual FDDI rings or section of bandwidth in our local DC
MAN, but ya gotta be hooked to the physical to take part.

Phil

- Original Message -
From: John Neiberger
To:
Sent: Friday, April 13, 2001 5:52 PM
Subject: Virtual Token Ring Interface [7:519]


 A while back we were discussing home lab equipment purchases.  While on
 the topic of token ring, someone suggested that it was not necessary to
 buy any routers with token ring interfaces because we could make use of
 the virtual-tokenring interface.

 Being new to token ring and its related configurations, I'm wondering
 if any of you have heard of ways to use this successfully in a home lab
 (or any lab, for that matter.)  If I could practice with token ring and
 SRB without shelling out more bucks for two more routers I'd be quite
 pleased.

 any thoughts, hints, tips, or suggestions?

 Thanks,
 John
 FAQ, list archives, and subscription info:
http://www.groupstudy.com/list/cisco.html
 Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
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RE: Virtual Token Ring Interface [7:519]

2001-04-14 Thread Chuck Larrieu

Don't have time to look into this more deeply today. Try

http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121cgcr/ibm_
c/bcprt2/bcdovnet.htm

CCO has several pages about virtual token-ring interfaces. They had
something else in mind apparently, when developing the concept. But it may
well be adaptable to a home-lab situation.

Chuck

-Original Message-
From:   [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Raul
F. Fernandez
Sent:   Saturday, April 14, 2001 9:17 AM
To: [EMAIL PROTECTED]
Subject:RE: Virtual Token Ring Interface [7:519]

I believe one of the papers in the certificationzone.com talks about this.
In fact it is the Token Ring paper. DUH!

Raul

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Circusnuts
Sent: Saturday, April 14, 2001 10:56 AM
To: [EMAIL PROTECTED]
Subject: Re: Virtual Token Ring Interface [7:519]


Any taker's yet John ???  I have never heard of such a thing...  I know the
Telco provisions virtual FDDI rings or section of bandwidth in our local DC
MAN, but ya gotta be hooked to the physical to take part.

Phil

- Original Message -
From: John Neiberger
To:
Sent: Friday, April 13, 2001 5:52 PM
Subject: Virtual Token Ring Interface [7:519]


 A while back we were discussing home lab equipment purchases.  While on
 the topic of token ring, someone suggested that it was not necessary to
 buy any routers with token ring interfaces because we could make use of
 the virtual-tokenring interface.

 Being new to token ring and its related configurations, I'm wondering
 if any of you have heard of ways to use this successfully in a home lab
 (or any lab, for that matter.)  If I could practice with token ring and
 SRB without shelling out more bucks for two more routers I'd be quite
 pleased.

 any thoughts, hints, tips, or suggestions?

 Thanks,
 John
 FAQ, list archives, and subscription info:
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 Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
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RE: Virtual Token Ring Interface [7:519]

2001-04-14 Thread John Neiberger

Ouch, it hurts my head trying to read that page!I think I saw that
page when I was searching CCO for uses of the virtual token ring interface. 
It appears to be used in SNASw, but a previous post gave me the impression
that it could somehow be used for more basic token ring study.  The specific
context was that we could avoid buying token ring routers if we used this
other method.

From what I've read so far, I still don't see how that is very feasible and
I was hoping someone out there had done this before.  I'll have to read the
CertificationZone paper again and look for that specifically.

Thanks all!

John

|  Don't have time to look into this more deeply today. Try
|  
| 
http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121cgcr/ibm_
|  c/bcprt2/bcdovnet.htm
|  
|  CCO has several pages about virtual token-ring interfaces. They had
|  something else in mind apparently, when developing the concept. But it
may
|  well be adaptable to a home-lab situation.
|  
|  Chuck
|  
|  -Original Message-
|  From:[EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of
Raul
|  F. Fernandez
|  Sent:Saturday, April 14, 2001 9:17 AM
|  To:  [EMAIL PROTECTED]
|  Subject: RE: Virtual Token Ring Interface [7:519]
|  
|  I believe one of the papers in the certificationzone.com talks about
this.
|  In fact it is the Token Ring paper. DUH!
|  
|  Raul
|  
|  -Original Message-
|  From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
|  Circusnuts
|  Sent: Saturday, April 14, 2001 10:56 AM
|  To: [EMAIL PROTECTED]
|  Subject: Re: Virtual Token Ring Interface [7:519]
|  
|  
|  Any taker's yet John ???  I have never heard of such a thing...  I know
the
|  Telco provisions virtual FDDI rings or section of bandwidth in our local
DC
|  MAN, but ya gotta be hooked to the physical to take part.
|  
|  Phil
|  
|  - Original Message -
|  From: John Neiberger
|  To:
|  Sent: Friday, April 13, 2001 5:52 PM
|  Subject: Virtual Token Ring Interface [7:519]
|  
|  
|   A while back we were discussing home lab equipment purchases.  While on
|   the topic of token ring, someone suggested that it was not necessary to
|   buy any routers with token ring interfaces because we could make use of
|   the virtual-tokenring interface.
|  
|   Being new to token ring and its related configurations, I'm wondering
|   if any of you have heard of ways to use this successfully in a home lab
|   (or any lab, for that matter.)  If I could practice with token ring and
|   SRB without shelling out more bucks for two more routers I'd be quite
|   pleased.
|  
|   any thoughts, hints, tips, or suggestions?
|  
|   Thanks,
|   John
|   FAQ, list archives, and subscription info:
|  http://www.groupstudy.com/list/cisco.html
|   Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
|  FAQ, list archives, and subscription info:
|  http://www.groupstudy.com/list/cisco.html
|  Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
|  FAQ, list archives, and subscription info:
|  http://www.groupstudy.com/list/cisco.html
|  Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
|  
|  
|  
|  
|  FAQ, list archives, and subscription info:
http://www.groupstudy.com/list/cisco.html
|  Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]





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RE: Virtual Token Ring Interface [7:519]

2001-04-14 Thread Howard C. Berkowitz

I still struggle with the question of whether the token rotates in 
the opposite direction in the Southern Hemisphere.

If so, would no IBM LAN operate precisely on the equator?




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Re: Virtual Token Ring Interface [7:519]

2001-04-14 Thread Circusnuts

Do they have a paper of "DUH ???" as Raul suggests I pursue that one too :o)

Phil

- Original Message -
From: Chuck Larrieu 
To: 
Sent: Saturday, April 14, 2001 12:47 PM
Subject: RE: Virtual Token Ring Interface [7:519]


 Don't have time to look into this more deeply today. Try


http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121cgcr/ibm_
 c/bcprt2/bcdovnet.htm

 CCO has several pages about virtual token-ring interfaces. They had
 something else in mind apparently, when developing the concept. But it may
 well be adaptable to a home-lab situation.

 Chuck

 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of
Raul
 F. Fernandez
 Sent: Saturday, April 14, 2001 9:17 AM
 To: [EMAIL PROTECTED]
 Subject: RE: Virtual Token Ring Interface [7:519]

 I believe one of the papers in the certificationzone.com talks about this.
 In fact it is the Token Ring paper. DUH!

 Raul

 -Original Message-
 From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
 Circusnuts
 Sent: Saturday, April 14, 2001 10:56 AM
 To: [EMAIL PROTECTED]
 Subject: Re: Virtual Token Ring Interface [7:519]


 Any taker's yet John ???  I have never heard of such a thing...  I know
the
 Telco provisions virtual FDDI rings or section of bandwidth in our local
DC
 MAN, but ya gotta be hooked to the physical to take part.

 Phil

 - Original Message -
 From: John Neiberger
 To:
 Sent: Friday, April 13, 2001 5:52 PM
 Subject: Virtual Token Ring Interface [7:519]


  A while back we were discussing home lab equipment purchases.  While on
  the topic of token ring, someone suggested that it was not necessary to
  buy any routers with token ring interfaces because we could make use of
  the virtual-tokenring interface.
 
  Being new to token ring and its related configurations, I'm wondering
  if any of you have heard of ways to use this successfully in a home lab
  (or any lab, for that matter.)  If I could practice with token ring and
  SRB without shelling out more bucks for two more routers I'd be quite
  pleased.
 
  any thoughts, hints, tips, or suggestions?
 
  Thanks,
  John
  FAQ, list archives, and subscription info:
 http://www.groupstudy.com/list/cisco.html
  Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
 FAQ, list archives, and subscription info:
 http://www.groupstudy.com/list/cisco.html
 Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
 FAQ, list archives, and subscription info:
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 Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
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RE: Virtual Token Ring Interface [7:519]

2001-04-14 Thread ElephantChild

On Sat, 14 Apr 2001, Howard C. Berkowitz wrote:

 I still struggle with the question of whether the token rotates in 
 the opposite direction in the Southern Hemisphere.

It does, except when you lift your whole network gently and flip it
upside down.

 If so, would no IBM LAN operate precisely on the equator?

(dons DrScience hat)
You must be thinking of FDDI. Normally, tokens go round and round in the
2 rings, one clockwise and one counterclockwise, and go past each other
without ever touching. However, when they would otherwise cross the
equator, tokens reverse direction and switch rings. Sometimes, when that
happens, they collide and give birth to exotic MAC layer protocols,
which scientists like me study and write long monographs about. Thus
were such wonders as BRAP and MLMA discoverd. 

-- 
"Someone approached me and asked me to teach a javascript course. I was
about to decline, saying that my complete ignorance of the subject made
me unsuitable, then I thought again, that maybe it doesn't, as driving
people away from it is a desirable outcome." --Me




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