Re: How to Multiplex 3 T1s [7:4625]

2001-05-23 Thread Erick B.

I didn't see my original reply come through.

How about using multilink-group # under the interfaces
to bind them to a multilink interface?

Example:

int multilink1
 ip address ...
 encaps ppp
 ppp multilink
   ...
int s1
  multilink-group 1
int s2
  multilink-group 1
int s3
  multilink-group 1

As for PVCs and Frame Relay, haven't tried the above
method. But have done PPP over Frame Relay and
combined multiple PPP over Frame circuits into 1
multilink virtual template. It worked but I did it in
lab just to see if it could be done. 

multilink-group doesn't work on DDR interfaces, this
was 12.1(5)T when the feature was introduced. It may
have changed since.

--- Kelly D Griffin  wrote:
 Has anyone done this successfully and shown an
 increase in bandwidth?  Has
 anyone done this with PVCs on the same router and
 frame port?
 
 Kelly D Griffin, CCNA, CCDA
 Network Engineer
 Kg2 Network Design
 877.418.4025
 http://www.kg2.com
 - Original Message -
 From: Wojtek Zlobicki 
 To: 
 Sent: Monday, May 21, 2001 8:54 PM
 Subject: Re: How to Multiplex 3 T1s [7:4625]
 
 
  What is to be gained by using an inverse mux ? 
 How much extra overhead is
  caused by this rather than running in inversed
 mode?
 
 
  Jon Wagner  wrote in message
  [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
   Take a look at this config and see if it work
 for you:
   http://www.cisco.com/warp/public/131/7.html
  
  
   -Original Message-
   From: Al Smith [mailto:[EMAIL PROTECTED]]
   Sent: Tuesday, May 15, 2001 8:57 PM
   To: [EMAIL PROTECTED]
   Subject: How to Multiplex 3 T1s [7:4625]
  
  
   Colleagues,
  
   I am currently trying to multiplex / bind 3
 parallel T1 clear channel
   circuits.
   The circuits will be terminating on a 7206
 router on an 8 port multi
   channel T1 card.
  
   My question is how do I bind the 3 T1s together
 to get the total
 aggregate
   bandwidth of 3 T1s.
   I have only found info on Inverse multiplexing
 for ATM which is not what
 I
   am trying to achieve.
   what I have is strictly 3 Point to Point T1
 circuits using PPP.
  
   Albert Smith
   Lucent Technologies
   System Engineer, CCNP MCSE
   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: How to Multiplex 3 T1s [7:4625]

2001-05-22 Thread Kelly D Griffin

Has anyone done this successfully and shown an increase in bandwidth?  Has
anyone done this with PVCs on the same router and frame port?

Kelly D Griffin, CCNA, CCDA
Network Engineer
Kg2 Network Design
877.418.4025
http://www.kg2.com
- Original Message -
From: Wojtek Zlobicki 
To: 
Sent: Monday, May 21, 2001 8:54 PM
Subject: Re: How to Multiplex 3 T1s [7:4625]


 What is to be gained by using an inverse mux ?  How much extra overhead is
 caused by this rather than running in inversed mode?


 Jon Wagner  wrote in message
 [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
  Take a look at this config and see if it work for you:
  http://www.cisco.com/warp/public/131/7.html
 
 
  -Original Message-
  From: Al Smith [mailto:[EMAIL PROTECTED]]
  Sent: Tuesday, May 15, 2001 8:57 PM
  To: [EMAIL PROTECTED]
  Subject: How to Multiplex 3 T1s [7:4625]
 
 
  Colleagues,
 
  I am currently trying to multiplex / bind 3 parallel T1 clear channel
  circuits.
  The circuits will be terminating on a 7206 router on an 8 port multi
  channel T1 card.
 
  My question is how do I bind the 3 T1s together to get the total
aggregate
  bandwidth of 3 T1s.
  I have only found info on Inverse multiplexing for ATM which is not what
I
  am trying to achieve.
  what I have is strictly 3 Point to Point T1 circuits using PPP.
 
  Albert Smith
  Lucent Technologies
  System Engineer, CCNP MCSE
  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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 Free E-mail Servers with unlimited mailboxes
 1st Class Internet Solutions

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RE: How to Multiplex 3 T1s [7:4625]

2001-05-22 Thread Tim Lovelace

I am doing this right now with our frame provider. We will be using 2 for
now but up to 8 t1s. We have to use the inverse mux on each side of the line
(ours and the providers). With 2 T1s we just get a 3 meg frame port and off
we go. We are using Quick Eagle DL3800 8 port inverse muxs.

Tim

-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Kelly D Griffin
Sent: Tuesday, May 22, 2001 8:28 AM
To: [EMAIL PROTECTED]
Subject: Re: How to Multiplex 3 T1s [7:4625]


Has anyone done this successfully and shown an increase in bandwidth?  Has
anyone done this with PVCs on the same router and frame port?

Kelly D Griffin, CCNA, CCDA
Network Engineer
Kg2 Network Design
877.418.4025
http://www.kg2.com
- Original Message -
From: Wojtek Zlobicki
To:
Sent: Monday, May 21, 2001 8:54 PM
Subject: Re: How to Multiplex 3 T1s [7:4625]


 What is to be gained by using an inverse mux ?  How much extra overhead is
 caused by this rather than running in inversed mode?


 Jon Wagner  wrote in message
 [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
  Take a look at this config and see if it work for you:
  http://www.cisco.com/warp/public/131/7.html
 
 
  -Original Message-
  From: Al Smith [mailto:[EMAIL PROTECTED]]
  Sent: Tuesday, May 15, 2001 8:57 PM
  To: [EMAIL PROTECTED]
  Subject: How to Multiplex 3 T1s [7:4625]
 
 
  Colleagues,
 
  I am currently trying to multiplex / bind 3 parallel T1 clear channel
  circuits.
  The circuits will be terminating on a 7206 router on an 8 port multi
  channel T1 card.
 
  My question is how do I bind the 3 T1s together to get the total
aggregate
  bandwidth of 3 T1s.
  I have only found info on Inverse multiplexing for ATM which is not what
I
  am trying to achieve.
  what I have is strictly 3 Point to Point T1 circuits using PPP.
 
  Albert Smith
  Lucent Technologies
  System Engineer, CCNP MCSE
  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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 Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
 
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 1st Class Internet Solutions

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Re: How to Multiplex 3 T1s [7:4625]

2001-05-22 Thread Dennis R

I've seen it done with 2 frame relay T1's at the hub of a hub-and-spoke 
topology. (There were actually 3 hub routers and 6 T1's, 1 pair IMUXed into 
each hub router). The router interface was a HSSI port. The bandwidth was 
what you'd expect (3 megabits). However, the Orion IMUXes the carrier had 
provided were so flaky we ended up removing the whole setup and running 
individual T1's to the hub routers, as part of an overall re-engineering of 
the network. The carrier just could not get the circuits stable long-term 
with those IMUXes in there. They were also the ones who had designed the 
network with that equipment before we took over management ... go figure.

FWIW,
doctorcisco


From: Kelly D Griffin 
Reply-To: Kelly D Griffin 
To: [EMAIL PROTECTED]
Subject: Re: How to Multiplex 3 T1s [7:4625]
Date: Tue, 22 May 2001 09:28:15 -0400

Has anyone done this successfully and shown an increase in bandwidth?  Has
anyone done this with PVCs on the same router and frame port?

Kelly D Griffin, CCNA, CCDA
Network Engineer
Kg2 Network Design
877.418.4025
http://www.kg2.com
- Original Message -
From: Wojtek Zlobicki
To:
Sent: Monday, May 21, 2001 8:54 PM
Subject: Re: How to Multiplex 3 T1s [7:4625]


  What is to be gained by using an inverse mux ?  How much extra overhead 
is
  caused by this rather than running in inversed mode?
 
 
  Jon Wagner  wrote in message
  [EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
   Take a look at this config and see if it work for you:
   http://www.cisco.com/warp/public/131/7.html
  
  
   -Original Message-
   From: Al Smith [mailto:[EMAIL PROTECTED]]
   Sent: Tuesday, May 15, 2001 8:57 PM
   To: [EMAIL PROTECTED]
   Subject: How to Multiplex 3 T1s [7:4625]
  
  
   Colleagues,
  
   I am currently trying to multiplex / bind 3 parallel T1 clear channel
   circuits.
   The circuits will be terminating on a 7206 router on an 8 port multi
   channel T1 card.
  
   My question is how do I bind the 3 T1s together to get the total
aggregate
   bandwidth of 3 T1s.
   I have only found info on Inverse multiplexing for ATM which is not 
what
I
   am trying to achieve.
   what I have is strictly 3 Point to Point T1 circuits using PPP.
  
   Albert Smith
   Lucent Technologies
   System Engineer, CCNP MCSE
   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: How to Multiplex 3 T1s [7:4625]

2001-05-21 Thread Chuck Larrieu

In your particular case, due to the existing T1 ports on the 7206, I would
guess at PPP multilink is the most cost effective way to go.

But just FYI, you can put an IMA device (either a card in a Cisco router, or
an external box such as Adtrans or a number of other vendors sell) and
multiplex those T1 lines even if they are not native ATM - provided the
endpoints of all the T1's are at the same two locations. If you use an
external device, the handoff to the router is HSSI.

Chuck



-Original Message-
From:   [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Al
Smith
Sent:   Tuesday, May 15, 2001 5:57 PM
To: [EMAIL PROTECTED]
Subject:How to Multiplex 3 T1s [7:4625]

Colleagues,

I am currently trying to multiplex / bind 3 parallel T1 clear channel
circuits.
The circuits will be terminating on a 7206 router on an 8 port multi
channel T1 card.

My question is how do I bind the 3 T1s together to get the total aggregate
bandwidth of 3 T1s.
I have only found info on Inverse multiplexing for ATM which is not what I
am trying to achieve.
what I have is strictly 3 Point to Point T1 circuits using PPP.

Albert Smith
Lucent Technologies
System Engineer, CCNP MCSE
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: How to Multiplex 3 T1s [7:4625]

2001-05-21 Thread Wojtek Zlobicki

What is to be gained by using an inverse mux ?  How much extra overhead is
caused by this rather than running in inversed mode?


Jon Wagner  wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
 Take a look at this config and see if it work for you:
 http://www.cisco.com/warp/public/131/7.html


 -Original Message-
 From: Al Smith [mailto:[EMAIL PROTECTED]]
 Sent: Tuesday, May 15, 2001 8:57 PM
 To: [EMAIL PROTECTED]
 Subject: How to Multiplex 3 T1s [7:4625]


 Colleagues,

 I am currently trying to multiplex / bind 3 parallel T1 clear channel
 circuits.
 The circuits will be terminating on a 7206 router on an 8 port multi
 channel T1 card.

 My question is how do I bind the 3 T1s together to get the total aggregate
 bandwidth of 3 T1s.
 I have only found info on Inverse multiplexing for ATM which is not what I
 am trying to achieve.
 what I have is strictly 3 Point to Point T1 circuits using PPP.

 Albert Smith
 Lucent Technologies
 System Engineer, CCNP MCSE
 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: How to Multiplex 3 T1s [7:4625]

2001-05-19 Thread Dennis R

Orion's.

FWIW,
doctorcisco

From: Howard C. Berkowitz 
Reply-To: Howard C. Berkowitz 
To: [EMAIL PROTECTED]
Subject: Re: How to Multiplex 3 T1s [7:4625]
Date: Wed, 16 May 2001 10:08:49 -0400

External inverse multiplexing devices also should be considered.
Tiara Networks make some interesting ones, and I believe Adtran and
some others also have a product.  While these are another box to
manage, they do unload lots of CPU cycles from the router, and may be
cheaper per-interface.
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Re: How to Multiplex 3 T1s [7:4625]

2001-05-19 Thread Dennis R

Sorry the message got cut off ...

I've seen clients have some ugly problems with (telco-provided) Orion 
IMuxes. Anyone looking at IMuxes might want to look harder at another flavor 
...

FWIW,
doctorcisco


From: Dennis R 
Reply-To: Dennis R 
To: [EMAIL PROTECTED]
Subject: Re: How to Multiplex 3 T1s [7:4625]
Date: Sat, 19 May 2001 05:55:02 -0400

Orion's.

FWIW,
doctorcisco

 From: Howard C. Berkowitz
 Reply-To: Howard C. Berkowitz
 To: [EMAIL PROTECTED]
 Subject: Re: How to Multiplex 3 T1s [7:4625]
 Date: Wed, 16 May 2001 10:08:49 -0400
 
 External inverse multiplexing devices also should be considered.
 Tiara Networks make some interesting ones, and I believe Adtran and
 some others also have a product.  While these are another box to
 manage, they do unload lots of CPU cycles from the router, and may be
 cheaper per-interface.
 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: How to Multiplex 3 T1s [7:4625]

2001-05-16 Thread Jon Wagner

Take a look at this config and see if it work for you:
http://www.cisco.com/warp/public/131/7.html


-Original Message-
From: Al Smith [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, May 15, 2001 8:57 PM
To: [EMAIL PROTECTED]
Subject: How to Multiplex 3 T1s [7:4625]


Colleagues,

I am currently trying to multiplex / bind 3 parallel T1 clear channel
circuits.
The circuits will be terminating on a 7206 router on an 8 port multi
channel T1 card.

My question is how do I bind the 3 T1s together to get the total aggregate
bandwidth of 3 T1s.
I have only found info on Inverse multiplexing for ATM which is not what I
am trying to achieve.
what I have is strictly 3 Point to Point T1 circuits using PPP.

Albert Smith
Lucent Technologies
System Engineer, CCNP MCSE
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: How to Multiplex 3 T1s [7:4625]

2001-05-16 Thread Howard C. Berkowitz

External inverse multiplexing devices also should be considered. 
Tiara Networks make some interesting ones, and I believe Adtran and 
some others also have a product.  While these are another box to 
manage, they do unload lots of CPU cycles from the router, and may be 
cheaper per-interface.




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Re: How to Multiplex 3 T1s [7:4625]

2001-05-16 Thread Dom Stocqueler

Also check out Black Box - www.blackbox.co.uk


|+---
||  Howard C.   |
||  Berkowitz   |
|| |
||   |
||  16/05/2001   |
||  15:08|
||  Please   |
||  respond to   |
||  Howard C.   |
||  Berkowitz   |
||   |
|+---
 
|
 
||
  |   To:
[EMAIL PROTECTED] |
  |   cc: (bcc: Dom
Stocqueler/LON/GB/Reuters) |
  |   Subject: Re: How to Multiplex 3 T1s
[7:4625] |
  |   Header:  Internal Use
Only   |
 
|






External inverse multiplexing devices also should be considered.
Tiara Networks make some interesting ones, and I believe Adtran and
some others also have a product.  While these are another box to
manage, they do unload lots of CPU cycles from the router, and may be
cheaper per-interface.
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: How to Multiplex 3 T1s [7:4625]

2001-05-16 Thread Nathan Vercher

I have used a Larscom Mega-T inverse mux CSU.  Works great with 2 to 4 T-1s.

Al Smith  wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
 Colleagues,

 I am currently trying to multiplex / bind 3 parallel T1 clear channel
 circuits.
 The circuits will be terminating on a 7206 router on an 8 port multi
 channel T1 card.

 My question is how do I bind the 3 T1s together to get the total aggregate
 bandwidth of 3 T1s.
 I have only found info on Inverse multiplexing for ATM which is not what I
 am trying to achieve.
 what I have is strictly 3 Point to Point T1 circuits using PPP.

 Albert Smith
 Lucent Technologies
 System Engineer, CCNP MCSE
 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: How to Multiplex 3 T1s [7:4625]

2001-05-16 Thread Hire, Ejay

Multilink PPP will let you bind all three circuits, I'll see if I can
scavenge up the link on CCO.cisco.com.  For a slightly less complex
solution, create 3 separate numbered links across the three t1's and put 3
equal cost routes pointing to the same destination on both ends.  Cap it off
with no Ip route-cache and you're all set.

Ejay Hire
804-220-7724
877-200-7020,x7724
... Answers are free.  Explanations will cost you a Diet Pepsi.  



-Original Message-
From: Al Smith [mailto:[EMAIL PROTECTED]]
Sent: Tuesday, May 15, 2001 8:57 PM
To: [EMAIL PROTECTED]
Subject: How to Multiplex 3 T1s [7:4625]


Colleagues,

I am currently trying to multiplex / bind 3 parallel T1 clear channe
circuits.
The circuits will be terminating on a 7206 router on an 8 port multi
channel T1 card.

My question is how do I bind the 3 T1s together to get the total aggregate
bandwidth of 3 T1s.
I have only found info on Inverse multiplexing for ATM which is not what I
am trying to achieve.
what I have is strictly 3 Point to Point T1 circuits using PPP.

Albert Smith
Lucent Technologies
System Engineer, CCNP MCSE
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: How to Multiplex 3 T1s [7:4625]

2001-05-15 Thread Brian

Well if they really need to be bound to 1 ip, I suspect multilink pp is
the way to go.  Alternatively, you could just point the same static routes
at all 3 and turn off caching if you really want to.

Brian Sonic Whalen
Success = Preparation + Opportunity


On Tue, 15 May 2001, Al Smith wrote:

 Colleagues,

 I am currently trying to multiplex / bind 3 parallel T1 clear channel
 circuits.
 The circuits will be terminating on a 7206 router on an 8 port multi
 channel T1 card.

 My question is how do I bind the 3 T1s together to get the total aggregate
 bandwidth of 3 T1s.
 I have only found info on Inverse multiplexing for ATM which is not what I
 am trying to achieve.
 what I have is strictly 3 Point to Point T1 circuits using PPP.

 Albert Smith
 Lucent Technologies
 System Engineer, CCNP MCSE
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Re: How to Multiplex 3 T1s [7:4625]

2001-05-15 Thread Erick B.

Al,

Look at 'interface multilink' and 'multilink-group #'
on the interface. 12.1(2)T I believe for
multilink-group command. multilink-group can't be used
on DDR interfaces.

Example:

int multilink1
   ip address ...
   encaps ppp
   ppp multilink
   ...rest of interface cfg...
int s0
  multilink-group 1
int s1
  multilink-group 1
int s2
  multilink-group 1

Erick

--- Al Smith  wrote:
 Colleagues,
 
 I am currently trying to multiplex / bind 3 parallel
 T1 clear channel
 circuits.
 The circuits will be terminating on a 7206 router on
 an 8 port multi
 channel T1 card.
 
 My question is how do I bind the 3 T1s together to
 get the total aggregate
 bandwidth of 3 T1s.
 I have only found info on Inverse multiplexing for
 ATM which is not what I
 am trying to achieve.
 what I have is strictly 3 Point to Point T1 circuits
 using PPP.
 
 Albert Smith
 Lucent Technologies
 System Engineer, CCNP MCSE


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