[j-nsp] MLPPP Overhead Question

[Scott Weeks]

Scott Weeks <surfer at mauigateway.com> wrote: 
--- bbird at dream2cook.com wrote:----------------
On Thu, 28 Jun 2007 14:54:44 -0700, "Scott Weeks"  wrote:

>I'm searching the web for data on the overhead of using MLPPP and 
> not having too much success.  If I'm gluing two T1s together do I 
> still get 1.536 times two or is there impact on this from the MLPPP?

Enabling MLPPP will not change the clock-rate of the constituent-links.  
<snip>
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I knew it wouldn't "change the clock-rate of the constituent-links", but I was unaware of the "PPP frame overhead will be increased by either 4 or 2 bytes" part.  I had found things on old NANOG posts like "...PPP <snip>
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--- evangellick at btinternet.com wrote:
From: EVAN WILLIAMS <evangellick at btinternet.com>

i have always found this to be a excellent resource, when looking into the operation and format of protocols. In general not much meat but enough in the morsel to help.
http://www.protocols.com/pbook/ppp4.htm#MultiPPP

hope this may but as useful for you as it has been for me, and still is.
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Thanks for the pointer Evan.  It looks like a pretty cool site.

scott













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