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Relationship between ppp multink & dialer load-threshold

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Aug 28th, 2006
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My question goes to the relationship between ppp multink and the dialer load-threshold command in an isdn ddr configuration. If we use ppp mutlink on the bri without dialer load-threshold will both b channels become immediately active or is this purpose of dialer-load threshold here to only activate 2nd channel per criteria established by dialer load?

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spremkumar Mon, 08/28/2006 - 03:14
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Hi Steven


You need to have dialer load-threshold command configured to bring additional channel though you have configured ppp multilink.


regds


stevennowell Mon, 08/28/2006 - 03:29
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So does this mean that 2nd b channel will never be activated in mpp config without this command? MPP config without dialer-load thresh will never use 2 channels ?

spremkumar Mon, 08/28/2006 - 03:35
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Hi Steven


Though i haven't tried yet running without threshold command ,AFAIK it doesn't fire the second channel without the command...


Regds


sundar.palaniappan Mon, 08/28/2006 - 16:43
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Actually, there's another way to bring up the 2nd b-channel without using the 'dialer load-threshold (number)' command.


R1(config)#int bri1/0

R1(config-if)#ppp multilink links minimum ?

<0-255> Specify minimum desired number of links in a bundle

R1(config-if)#ppp multilink links minimum 2


With this command in there the router would always attempt to keep a minimum of 2 b-channels active at any given time.


You can find more info here:


http://www.cisco.com/univercd/cc/td/doc/product/software/ios124/124tcr/tdia_r/dia_p2ht.htm#wp1008843



HTH,


Sundar



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