Does anybody have a link to the NMC software that i have heard mentioned or
have it available thru ftp ??
Cheers Mark
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1 Cisco 4500
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1 Teltone isdn simulator
Please let me know if your are interested and they
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what happen if ISDN received the setup but not responded to connect ? IS the
problem pointing to layer 1 , 2 or 3 ?
Thanks
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Team,
Is it possible to configure back-to-back ISDN WIC-1B-U connections for a
home lab setup?
JoeT MCSE, CCNP
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Hi All,
Can someone help me with the basic config of a teltronic isdn simulator.The
manual of the one I have is missing.
Rgds,
Ak
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Hi,
have a C3640 with ISDN dialin capability
currently around 40 dialer interfaces setup and would like to streamline
memory used..
rotary groups will give me that function but not sure on how to set it up
and how exactly it works with 'hunting' phone numbers
also pro's and cons of using
Hi
Dialer rotary-groups are point-to-multipoint interfaces
for ex:this is a dialer rotary group sample
int bri x
dialer rotary y
To:
Sent: Tuesday, August 19, 2003 11:49 AM
Subject: ISDN dialer rotatry groups [7:74159]
Hi,
have a C3640 with ISDN dialin capability
currently around 40 dialer
Hi
Dialer rotary-groups are point-to-multipoint interfaces
for ex:this is a dialer rotary group sample
int bri x
dialer rotary y
To:
Sent: Tuesday, August 19, 2003 1:27 PM
Subject: Re: ISDN dialer rotatry groups [7:74159]
Hi
Dialer rotary-groups are point-to-multipoint interfaces
: [EMAIL PROTECTED]
Onderwerp: ISDN dialer rotatry groups [7:74159]
Hi,
have a C3640 with ISDN dialin capability
currently around 40 dialer interfaces setup and would like to streamline
memory used..
rotary groups will give me that function but not sure on how to set it up
and how exactly it works
do a show isdn ?
this should list all the options for ISDN that you can do. It's been
several years since I worked with ISDN but I know it's there.
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, August 12, 2003 2:29 PM
To: [EMAIL PROTECTED]
Subject: ISDN and SDS? [7:73940]
I need to make LD calls with an ISDN BRI line for a frame
rely back up. I
was told by ATT that I need to use SDS to make an LD call
with an ISDN BRI
line. The price per min per B ch is .27 but we can make
I need to make LD calls with an ISDN BRI line for a frame rely back up. I
was told by ATT that I need to use SDS to make an LD call with an ISDN BRI
line. The price per min per B ch is .27 but we can make and LD call on a
56K pots line for .3 are they right or just looking for $$?
Ryan
Hi All,
Has anyone configured a USRobotics courier ISDN/v.34 modem?
I managed to install the correct drivers and have done the test through the
USRobotics Courier I-modem Configuration Manager which results in a
successful check on the line to the ISDN 2600 router.However when I dial
I have sorted this out..it is now working.
Is there a command in ISDN to view the number dialled?
I have connected an analogue telephone to the isdn modem and am using it of
the isdn line.
Is there a command for me to view the number I dialled and the statistics?
My Router is a 2600 with isdn
Is there a command in ISDN to view the number dialled?
I have connected an analogue telephone to the isdn modem and am using it of
the isdn line.
Is there a command for me to view the number I dialled and the statistics?
My Router is a 2600 with isdn ports and 1 ethernet.
Pooven
Message
Try sh isdn history or debug dialer.
Prof. Tom Lisa, CCAI
Community College of Southern Nevada
Cisco ATC/Regional Networking Academy
Cunctando restituit rem
[EMAIL PROTECTED] wrote:
I have sorted this out..it is now working.
Is there a command in ISDN to view the number dialled?
I have
Try sh isdn history or debug dialer.
Prof. Tom Lisa, CCAI
Community College of Southern Nevada
Cisco ATC/Regional Networking Academy
Cunctando restituit rem
[EMAIL PROTECTED] wrote:
I have sorted this out..it is now working.
Is there a command in ISDN to view the number dialled?
I have
Hi all,
I want to monito a cisco 2600 isdn to determine when it is up. Is there a
MIB I can watch that changes when the ISDN comes up and then changes back to
the original value when it goes down? Thx.
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Anybody experience with ISDN pabx for home/office as an ISDN sim?
I am testing one right now and are running into problems.
Tei's are assigned.
layer 1 and 2 are active.
Have to clear the interface everytime after a dial so TEI's are reassigned
etc. Than it works a single time. Next time only
taken a snapshot of some of the config...
**
interface Dialer1
description ISDN Dial In Users
ip unnumbered Loopback0
no ip directed-broadcast
encapsulation ppp
no ip route-cache
ip ospf interface-retry 0
no ip mroute-cache
dialer remote-name rushta01
dialer
me again on isdn issues.
have resolved previous problems thanks for all input.
another ugly snake has reared it's neck..
have a number of isdn sites dialing in (dialer interfaces and not ddr) and
being disconnected on random timeouts. they idle timeout is set to 120
seconds.. somtimes
I have set up an IPSec/GRE VPN with EIGRP and am having problems getting the
ISDN backup to work correctly. Has anyone been able to do this
successfully. Thanks, Rob
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the timers.
Are you running a routing protocol over the link?
Can you post some debug dialer.
Ants wrote in message
news:[EMAIL PROTECTED]
me again on isdn issues.
have resolved previous problems thanks for all input.
another ugly snake has reared it's neck..
have a number of isdn sites dialing
traffic out of the
interface for the idle-timeout.
JMcL
Ronnie Higginbotham wrote:
Sounds like you don't have interesting traffic associated with
the
interface. Are you using DDR or Dialer interfaces? Are you
running a routing
protocol over this ISDN link?
In the running-config
DDR look
this is from an earlier post on the list. Hope it helps.
-Nakul
Try this:
( if it works, credit given to author below )
Scotty
Enter this under stupid router tricks (it's got to be more expensive than an
ISDN emulator, but
not if you've
Nakul,
Would you please explain more (using 3 routers to create ISDN)..
Andre'
-Original Message-
From: Nakul Malik [mailto:[EMAIL PROTECTED]
Sent: Sunday, July 13, 2003 8:50 PM
To: [EMAIL PROTECTED]
Subject: Re: ISDN ... connectivity [7:72051]
nope.
not possible
however
Hi,
Have a Dialup Cisco 3640 router with IOS 12.0(9)
recently had a number of ISDN users complaining that they lose their
connection after a set time once logged in successfully..
the idle-timeout on the dialer interfaces is not set..so the default is 120
seconds... promptly on 120 seconds
Sounds like you don't have interesting traffic associated with the
interface. Are you using DDR or Dialer interfaces? Are you running a routing
protocol over this ISDN link?
In the running-config
DDR look for
int bri 0
dialer-group 1
global command
dialer-list protocol ip permit
Dialer
nope.
not possible
however
with three routers u can
-Nakul
H T wrote in message
news:[EMAIL PROTECTED]
Hi,
Can we connect 2 ISDN ports back to back for test ? (with out ISDN
simulation device)
Is there any kind cable to do this job?
cheers
Heiman.
Message Posted at:
http
not possible with ISDN
H T wrote in message
news:[EMAIL PROTECTED]
Hi,
Can we connect 2 ISDN ports back to back for test ? (with out ISDN
simulation device)
Is there any kind cable to do this job?
cheers
Heiman.
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Although I have never tried this, due to not having the hardware, I have
been told something like this is possible:
ROUTERA-S/T---xover---ROUTER-S---xover---S/T-ROUTERB
ROUTERs A and B ISDN BRI S/T interface
ROUTER-S (acting as the switch) NM-2V and VIC-2BRI-S/T-TE or NT
I may even have
Hi,
Can we connect 2 ISDN ports back to back for test ? (with out ISDN
simulation device)
Is there any kind cable to do this job?
cheers
Heiman.
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pool-member 1
isdn switch-type basic-net3
no cdp enable
ppp authentication chap
ppp multilink
!
interface Dialer0
description Dialer 2 test_lab
ip address 10.10.10.1 255.255.255.252
encapsulation ppp
dialer pool 1
dialer remote-name test_lab
dialer string 12123633 class myclass
dialer
Hi all,
I have a problem with my ISDN back up link... the interface in STANDBY mode.
TBRS#sho inter bri0
BRI0 is standby mode, line protocol is down
Hardware is PQUICC BRI
Description: Dialer to Lovisenberg
Internet address is 172.21.14.1/24
MTU 1500 bytes, BW 64 Kbit, DLY 2 usec
Dear all
I am having 128 kbps Leased Line with ISDN backup.As
the Link goes Down ,ISDN should trigger,however in my
case the ISDN link does not come up and goes to
deactivated mode.What could be the problem .I have
seen that upon removing the ISDN link and inserting
back it gives the status
!
hostname LDS
!
boot system flash c3725-is-mz.122-15.T2.bin
logging queue-limit 100
!
username TBRS password 7 104C081A0E020207050A21
clock timezone met 1
clock summer-time met recurring last Sun Mar 2:00 last Sun Oct 3:00
ip subnet-zero
!
isdn switch-type basic-net3
!
no voice hpi capture buffer
255.255.255.0
encapsulation ppp
ppp authentication chap
ppp chap password 7 1307161100191426222A23
dialer idle-timeout 750
dialer map ip 172.21.14.2 name LDS 23225374
dialer-group 1
dialer pool 1
interface bri0
isdn switch-type basic-net3
encapsulation ppp
ppp authentication
Dear all
I am having 128 kbps Leased Line with ISDN backup.As
the Link goes Down ,ISDN should trigger,however in my
case the ISDN link does not come up and goes to
deactivated mode.What could be the problem .I have
seen that upon removing the ISDN link and inserting
back it gives the status
interface bri0
isdn switch-type basic-net3
encapsulation ppp
ppp authentication chap
ppp chap password 7 1307161100191426222A23
dialer pool-member 1
Hope this helps,
Eric Brouwers
PS
Be careful about moving all statements below BRI interface to dialer
interface
Hi,
can you show us your running config of both sides, so we can know where
would be the problem?
cheers,
Heiman.
Mr piyush shah wrote in message
news:[EMAIL PROTECTED]
Dear all
I am having 128 kbps Leased Line with ISDN backup.As
the Link goes Down ,ISDN should trigger,however in my
* the telco switch may not be able to detect, in a timely fashion
that your isdn line is active, because European ISDN switches normally
deactivate layer 1 or layer 2 of an idle isdn line.
Removing and re-inserting the cable sort of resets the layers 1 and 2. Has
the same effect as typing clear int brix
Hi Heiman,
You won't get a bill: there won't be any ISDN layer 3 call: only your ISDN
bearer, so layer 1/2 will come up. Only when your serial goes down, an ISDN
call will be made and then you have to pay.
Eric
- Original Message -
From: H T
To:
Sent: Tuesday, July 08, 2003 3:05 PM
Probably layer 1 and 2 are deactivated by the Telco. It's better to use a
dialer interface as backup of a serial line. Then L1/2 stays up. Refer to
other ISDN thread as well.
If you don't want to do that, try to change the TEI negotiation. Cisco's
default is TEI negotiation when the router
Hey folks:
I'm struggling with an ISDN issue in which the call comes up, but then is
immediately dropped without the interesting traffic being sent. I'm an
ISDN neophyte, so I'm more than willing to admit a config error on my part,
but from what I can see, my first thought is that it's
Hey folks:
I'm struggling with an ISDN issue in which the call comes up, but then is
immediately dropped without the interesting traffic being sent. I'm an
ISDN neophyte, so I'm more than willing to admit a config error on my part,
but from what I can see, my first thought is that it's
.
--
Bill Lijewski
CCIE #8642
wrote in message
news:[EMAIL PROTECTED]
Hey folks:
I'm struggling with an ISDN issue in which the call comes up, but then is
immediately dropped without the interesting traffic being sent. I'm an
ISDN neophyte, so I'm more than willing to admit a config error
Hello all,
I have a practice lab setup as follows :
R1 ( bri int ) -- ISDN switch ---
(bri int ) -- R2.
I have configured the ISDN simulator with Basic-ni1 settings and the
directory #s and SPIDs for both the ports.
The following output I see when I issue
,
I have a practice lab setup as follows :
R1 ( bri int ) -- ISDN switch ---
(bri int ) -- R2.
I have configured the ISDN simulator with Basic-ni1 settings and the
directory #s and SPIDs for both the ports.
The following output I see when I issue sh
I have a used Merge ISDN 2000AF simulator I purchased for my lab and I am in
desperate need of the software for it. Merge Tech support says that I need
to re download the software to the simulator, because it is corrupt. Does
anyone have the software they can share with me?
Thanks,
Tim Medley
Is it possible to do this without manual configuration changes?
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Hello all,
I have a practice lab setup as follows :
R1 ( bri int ) -- ISDN switch ---
(bri int ) -- R2.
I have configured the ISDN simulator with Basic-ni1 settings and the
directory #s and SPIDs for both the ports.
The following output I see when I issue
Hi Group,
This is pertaining to FR Backup over ISDN
http://www.cisco.com/warp/customer/125/12.html#topic21
It may not help much to back up the main interface because you could
lose permanent virtual circuits (PVCs) without the main interface going
down. Remember, the protocol is being exchanged
Breif example... Your local T1 ciruit to your carrier is Up Up but.. when
you do a sh frame-relay pvc your DLCI shows INACTIVE. Hence why the ISDN
backup interface command does not take effect since the interface is still
up.. even though your frame-relay is not working. This can be caused
you need to configure dialer watch for this to work correctly.
-Original Message-
From: Salvatore De Luca [mailto:[EMAIL PROTECTED]
Sent: 25 June 2003 09:42
To: [EMAIL PROTECTED]
Subject: RE: FR Backup Over ISDN [7:71332]
Breif example... Your local T1 ciruit to your carrier is Up Up
though I prefer triggering backups on loss of routes personally.
Dave
Srivathsan Ananthachari wrote:
Hi Group,
This is pertaining to FR Backup over ISDN
http://www.cisco.com/warp/customer/125/12.html#topic21
It may not help much to back up the main interface because you could
lose
yasmin ashraf 6/24/03 6:00:35 AM
Dear Sir,
I need some help. Actually I am trying to configure
BRI. When I type command Sh ISDN status then it
shows BRI Layer 1 is deactivated. But whereas NTBA box
shows both lights (Line, Voltage) as Ok. Following is
my cable configuration from S/T interface
John Neiberger wrote in message
news:[EMAIL PROTECTED]
We use ISDN for dial backup where DSL is not available and we need more
bandwidth than a standard modem connection would provide, which is a lot
of
locations. It seems that there is a lot of ISDN out there and plenty of
it
being ordered
At 5:35 PM + 6/21/03, The Road Goes Ever On wrote:
John Neiberger wrote in message
news:[EMAIL PROTECTED]
We use ISDN for dial backup where DSL is not available and we need more
bandwidth than a standard modem connection would provide, which is a lot
of
locations. It seems
Not sure, but I hope for a a little while longer. DSL, ISDN's new
and improved cousin may be superior in quite a few number of ways,
but sometimes you have NO other choice but to use ISDN to access some
far off places.
Maybe this is changing soon and they will phase it out, but ISDN
still
I do believe, atm's and gas pumps uses ISDN. So it's still a need, when its
in need, you gotta know it.
- Original Message -
From: Carroll Kong
To:
Sent: Friday, June 20, 2003 12:51 PM
Subject: Re: ISDN CCIE [7:70944]
Not sure, but I hope for a a little while longer. DSL, ISDN's
We use ISDN for dial backup where DSL is not available and we need more
bandwidth than a standard modem connection would provide, which is a lot of
locations. It seems that there is a lot of ISDN out there and plenty of it
being ordered, but I might be mistaken. I'd love to get rid of it because
At 7:50 PM + 6/20/03, Duy Nguyen wrote:
I do believe, atm's and gas pumps uses ISDN. So it's still a need, when its
in need, you gotta know it.
This does make me wonder if any atm's use ATM.
Joking aside, many money machines use an interesting ATM variant:
0B+D. They send X.25
At the bank that where I worked, we used ATM at the primary/secondary
network locations and frame relay at the branch offices and ATM machines.
The telco did the ATM FR mapping in thier switches. We also had ISDN as
a backup at all locations and got rid of the STUN network.
There's nothing like
Hi,
I was wandering how long will be isdn part of the CCIE
exam.
regards,
rooban
=
cheers,
rooban
http://mobile.yahoo.com.au - Yahoo! Mobile
- Check compose your email via SMS on your Telstra or Vodafone mobile.
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i would like to thank Devrim and Duy helping with my query about 836 router
for ADSL over ISDN,
yes i had to upgrade IOS version to 12.2(13)ZG from there everything was
'pie',
once again thank you
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Hi group,
I recently got a ILS-1000 ISDN simulator for my lab, I config two router
according to the CCIE LAB configuration and i just can not make the BRI
dial.
Did anyone have any experience for the this simulator.
Here is the output and the config, pleas help.
R2503#
interface BRI0
ip
ILS-1000 ISDN Simulator [7:70798]
Hi
Does anyone know where i can get new ILS image for this unit.
Thanks
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-1000 ISDN Simulator [7:70798]
Shawn
According to the Teltone web site it is a software add on, I never used this
unit before.
Thanks
Alex
- Original Message -
From: Kaminski, Shawn G
To: 'Alex' ;
Sent: Wednesday, June 18, 2003 9:24 AM
Subject: RE: Teltone ILS-1000 ISDN Simulator [7:70798
In the 2503 router you have two options to make it dial put a dialer-string
under the bri or assign a sting to the end of your dialer map command.
You are missing that.
Ronnie
wrote in message
news:[EMAIL PROTECTED]
Hi group,
I recently got a ILS-1000 ISDN simulator for my lab, I config two
Hi
Does anyone know where i can get new ILS image for this unit.
Thanks
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Hi,
I've set up a Cisco 801 to dial into a Cisco 2600 with a E1/PRI card
installed, with 8 channels of ISDN available.
The idea being that the Cisco 801 (192.168.13.0/24) will dial into and route
traffic to the 2600 (public range). I have successfully got the routers to
talk and accepts username
[EMAIL PROTECTED] wrote:
Hi,
I've set up a Cisco 801 to dial into a Cisco 2600 with a E1/PRI card
installed, with 8 channels of ISDN available.
The idea being that the Cisco 801 (192.168.13.0/24) will dial into and
route
traffic to the 2600 (public range). I have successfully got
Hello
i am having layer 1 problems in placing an 836 router for ADSL over ISDN,
the story so far ;
the LEDs of the ATM interface (Rx,Tx and CD) keep going on and
off(constantly,
yes i know, not good),
doing a #show ip int brief, obviously shows that both ATM0 and ATM0.1 are in
down state
Have this cisco modem ever worked on ur line? You said dsl over ISDN, is
this an IDSL? I know that some modems aren't compatible w/the dslams, or
the Card connecting the circuit at the CO. Ask the provider, see what their
recommendation on the modems.
- Original Message -
From: dlci_16
First of all you need Cisco IOS Software Release 12.2(13)ZH for adsl over
isdn support.
Cisco IOS Software Release 12.2(13)ZH is a short-lived, early deployment
release that will be supported in the second release of Cisco IOS Software
Release 12.3T. It supports the Cisco 831, 836, and 837 routers
First of all you need Cisco IOS Software Release 12.2(13)ZH for adsl over
isdn support.
Cisco IOS Software Release 12.2(13)ZH is a short-lived, early deployment
release that will be supported in the second release of Cisco IOS Software
Release 12.3T. It supports the Cisco 831, 836, and 837
HI Julian,
I think a floating static route will serve your purpose fine.
HTH
Vikram
-Original Message-
From: Julian.P [mailto:[EMAIL PROTECTED]
Sent: Tuesday, June 10, 2003 2:09 PM
To: [EMAIL PROTECTED]
Subject: isdn backup query [7:70443]
Hi all
I just have a query about
Use a floating static route with a higher metric - around 200 etc
-Original Message-
From: Julian.P [mailto:[EMAIL PROTECTED]
Sent: Tuesday, June 10, 2003 2:09 PM
To: [EMAIL PROTECTED]
Subject: isdn backup query [7:70443]
Hi all
I just have a query about configuring an isdn backup
Hi all
I just have a query about configuring an isdn backup link to an isp.
I am going to use the backup interface bri0 with the backup delay command
on the serial link.
My question is what routing would i have to add if there is already a
default route going out the serial interface.
Thanks
is
removed.
Hope this helps.
Thanks,
Mario Puras
SoluNet Technical Support
-Original Message-
From: Julian.P [mailto:[EMAIL PROTECTED]
Sent: Tuesday, June 10, 2003 4:39 AM
To: [EMAIL PROTECTED]
Subject: isdn backup query [7:70443]
Hi all
I just have a query about configuring
Hi I have a question here:
If i have 2 Routers and they are connected to the serial connection...
and the ethernet and the ISDN interfaces allso has a IP address.
AND THE ISDN LINE IS CONFUGRED AS BACKUP FOR THE SERIAL LINE.
(So is in standby mode (down))and all of the 3 interfaces have different
comments inline:
- Original Message -
From: Iwan Hoogendoorn
To:
Sent: Tuesday, June 10, 2003 11:20 PM
Subject: RIP updates trough a serial and ISDN connection [7:70480]
Hi I have a question here:
If i have 2 Routers and they are connected to the serial connection
To bring up both B- channels set
dialer load threshold 5 .
and if you want to test it usean extended ping with bigger packet size that
will help.
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The other option it to buy and old PBX, normally cheaper than an ISDN
simulator, and then you can do it for real. I have seen a couple on ebay
for £200-£300. This would also allow you to do VOIP, etec
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Try this:
( if it works, credit given to author below )
Scotty
Enter this under stupid router tricks (it's got to be more expensive than an
ISDN emulator, but
not if you've got the parts lying around).
Switch: Cisco 2600 or 3600 with NM-2V
Hi,
Just want to clarify for basic-ni is set on BRI, then if one dialer string
set on remote site can bring up both channels? Anyone use this swith type
at work please share your experience.
Thank a lot.
Regards,
Fanglo
_
Little minds are interested
No, you need to buy a hardware ISDN simulator/emulator. And they aren't
cheap!!
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Make sure under the interface option in the adtran SWAP ANI/DNIS parameter
is set to DISABLED
path: ATLAS 550/Dial Plan/User Term/Interface Configuration
Hope this helps!
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maybe with
debug isdn q921
or debug isdn events
regards martin
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Is there a way to know/test/monitor that ISDN backup is always ready to be
used when the primary link is down..? I sometimes frusrated that the ISDN
won't kick up when the primary link is down, and then only the ISP claim the
ISDN link got problem...
thanks
- Original Message -
From
If i do a show controllers bri 0 , how do I know if there is a cable
connected to the port ? What do I have to look at to determine this ? I know
that if you do it for serial interfaces you can see if the clocks have been
detected.
Any ideas
Thanks
Take a look at this web site and let me know what you
think.
http://www.imagine2020.com/761368002.
--- Link Teo wrote:
I am using leased line to connect my remote offices
to HQ. All the leased
line are backup by ISDN. Is there any tools which
can inform me via email or
other means about
I am using leased line to connect my remote offices to HQ. All the leased
line are backup by ISDN. Is there any tools which can inform me via email or
other means about whether I am using leased line now or ISDN backup? In
other words, any tools which can inform me when the primary line is down
At 05:27 PM 3/31/2003 +, Link Teo wrote:
I am using leased line to connect my remote offices to HQ. All the leased
line are backup by ISDN. Is there any tools which can inform me via email or
other means about whether I am using leased line now or ISDN backup? In
other words, any tools which
Another CCIE practice lab. You gotta see this. What's wrong with this
picture?
Router 1 ( relevant configurations )
interface BRI0
no ip address
encapsulation ppp
dialer pool-member 1
isdn switch-type basic-ni
isdn spid1 0101
isdn spid2 11120101 1112
ppp multilink
!
interface
Chuck,
Where did you get this solution lab from ?
Regards.
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See below:
The Long and Winding Road wrote:
I'm working on a practice lab problem.
there are two domains - OSPF and EIGRP
The two domains can only communicate via ISDN
OSPF---R1---ISDN--R2EIGRP
R1 is where redistribution takes place. The ISDN link is in the
EIGRP
for EIGRP, but I
could be wrong. If there was that would be the answer. Hope I haven't
confused you more Chuck :)
Vince
- Original Message -
From: The Long and Winding Road
To:
Sent: Sunday, March 23, 2003 4:26 PM
Subject: Sanity Check - ISDN and EIGRP [7:66016]
I'm working on a practice lab
Folks,
I'm sure this a pretty straight forward but as this ISDN
connection relates to the lab requirements as a complete scenario should
dictate how the requirements are interpreted.
It seems strange that the ISDN link should stay up indefinitely.
Another question here would be what
permit ip any any
Yes the ISDN link is practically permantently up. Depending on the flow of
hellos, it may drop for an instant, but it pops right back up.
In answer to someone else's point, no, snapshot routing is not an option
with either ospf or eigrp. I am assuming that it is possible for bgp
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