From: Carlos G Mendioroz (tron@huapi.ba.ar)
Date: Tue Oct 12 2004 - 08:22:13 GMT-3
I would also say this is the reason, but bringing that time down will
bring some side effects.
The router does not *know* that you have just placed another call, it
only sees the increased trafic. That is seen by taking 5 seconds samples
and doing a "run average" on trafic over some time. If you take that
time to the minimum 5 seconds, then you will bring new calls because of
any single burst. I would try setting 10 seconds and see.
Also, increasing the minimum links could help. It seems to me that the
bad consequences of being 1 B channel short are stronger when doing the
1->2 transition than when doing the 2->3 and over. So eliminating this
transition (because you start with 2) may help (at the increased cost :-).
Dave Mumford wrote:
> Meant to say ( not sure if this is a consequence of that fact that the minimum load-interval is 30 seconds) , I suspect this is whats causing my problem , but would like to know if theres a way of bringing up extra channels immediately.
>
> Thanks, Dave.
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of Dave Mumford
> Sent: 12 October 2004 11:10
> To: ccielab Groupstudy
> Subject: dialer-load threshold on PRI
>
>
> I have a centralised call manager installation where I need to provide a solution to backup IP Phones over isdn PRI , phones are registered to call manager and use g.729 across the WAN . Problem I have is when the primary WAN link drops and calls cut over to isdn , it takes an extra 30 seconds each time another B channel comes up ( not sure if this is a consequence of that fact that the minimum dialer-load threshold or ppp multilink load-threshold is 30 seconds) . I would like the extra channels to come up immediately as calls are placed. Can this be done ? Any help appreciated. Config below.
>
> Thanks, Dave.
>
> interface Serial1/0:15
> bandwidth 2000
> ip address 10.152.45.39 255.255.255.240
> service-policy output avvid
> encapsulation ppp
> load-interval 30
> dialer map ip 10.152.45.38 name NO_RTR_04 <number>
> dialer load-threshold 2 either
> dialer-group 5
> isdn switch-type primary-net5
> isdn incoming-voice modem
> no peer neighbor-route
> ppp authentication chap
> ppp multilink
> ppp multilink fragment delay 20
> ppp multilink interleave
>
>
>
>
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-- Carlos G Mendioroz <tron@huapi.ba.ar> LW7 EQI Argentina
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