10-30-2006 01:35 AM
Hi,
I have two ISDN routers, both having the BRI ports.
On my router, ports are configured as follows:
interface BRI0
bandwidth 128
no ip address
encapsulation ppp
dialer pool-member 1
isdn switch-type basic-net3
no cdp enable
!
interface BRI1
bandwidth 128
no ip address
encapsulation ppp
dialer pool-member 1
isdn switch-type basic-net3
no cdp enable
!
interface Dialer1
bandwidth 128
ip address <ip> <Netmask>
encapsulation ppp
dialer pool 1
dialer remote-name <name>
dialer idle-timeout 30
dialer string <number>
dialer caller <number>
dialer load-threshold 1 either
dialer-group 1
no cdp enable
!
Remote is configured as follows:
interface BRI0
bandwidth 128
no ip address
encapsulation ppp
dialer pool-member 1
isdn switch-type basic-net3
no cdp enable
ppp multilink
!
interface BRI1
bandwidth 128
no ip address
encapsulation ppp
dialer pool-member 1
isdn switch-type basic-net3
no cdp enable
ppp multilink
!
interface Dialer1
bandwidth 128
ip address <ip> <Netmask>
encapsulation ppp
dialer pool 1
dialer remote-name <name>
dialer idle-timeout 30
dialer string <number>
dialer caller <number>
dialer load-threshold 1 either
dialer-group 1
ppp multilink
no cdp enable
!
What happens is that all of the four B-channels are used, even if I have set bandwidth 128, so if I dial to this remote site I can't dial to the other remote sites I have.
How can I correct this behaviour, i.e. have my remote site that takes no more than 2 B channels?
Thanks
Ciao
10-30-2006 02:28 AM
Hi ,
You have configured a single dialer and have binded the BRI with the dialer and with this config , you cannot connect to two locations.
Use two dialer and bind each BRI with each dialer and use it to connect to two locations.
For a single location means , change the dialer load threshold to 150 ( 150/255 ) load so that the four channels are not triggered immediately rather than getting triggered based on load condition.
Pls let me know if your requirement was something else
regards
vanesh k
10-30-2006 05:23 AM
This was only an example. I have 20 different dialers.
What I need is not to have all four channel triggered after a while, but to have no more than two channels triggered, whatever bandwidth requirement I have.
Ciao
10-30-2006 05:12 AM
use load threshold command.
10-30-2006 06:16 AM
In the original post from Francesco it is clear that both dialer intefaces already do specify the load threshold command.
I note in the original post that the first router does not include ppp multilink in its config while the remote router does specify ppp multilink. I am not clear whether the difference is real or is a result of inconsistent cut and paste by Francesco. I would think it would be problematic if the configs were really inconsistent in this matter.
I also note that there is no authentication on the BRI or on the Dialer interfaces. I have seen situations where not specifying authentication will cause one connection to be made for inbound traffic and a different connection to be made for outbound traffic. I suggest configuring ppp authentication (could be PAP or could be CHAP) and see if that changes the behavior.
HTH
Rick
10-30-2006 08:55 AM
Rick,
I'll try tomorrow your suggestions. There are no ppp multilink on one side, because when I had ppp multilink on both sides I had the problem that after a while, router stopped making dial out, i.e. the debug showed interesting traffic, but this didn't cause a dialup anymore.
Somebody suggested me to remove ppp multilink from my side, and this effectively worked, since I hadn't experienced that problem anymore.
Ciao
ciccio4242
11-02-2006 12:40 AM
Rick,
no, putting ppp authentication on BRI interface does not work.
Any ideas?
Ciao
11-02-2006 01:54 AM
Hi,
If your requirement is only to have two channels triggered , then associate each BRI with a dialer , so that you have a max of 2 channels . But in case if you want multiple dialers to use a single BRI , then go fo dialer rotary group.
pls let us know if you requirement was diff
regards
vanesh k
11-02-2006 06:33 AM
network.king,
I need to have more dialers than BRI's, so I'll deal with dialer rotary groups. but can U please explain me how they work, and what's the difference with or without them?
Thanks a lot
Ciao
11-07-2006 08:02 PM
If you make just one of the BRI interfaces part of dialer pool-member 1 then the dialer will only be able to use that BRI.
hope that helps,
Andres
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