[c-nsp] Dual E1/T1 - best practice in combining them?

Jon Lewis jlewis at lewis.org
Sat Aug 11 17:31:56 EDT 2007


On Sat, 11 Aug 2007, Garry Glendown wrote:

> I have just enabled a second E1 for a customer. No problem there as
> such, just two point-to-point links with same weight routes pointing
> towards both links, results in a pretty equal distribution of the
> traffic flows on both links. Of course  this also means a single flow
> will only have a maximum of 2mbit of bandwidth available (which in this
> case isn't really much of a problem - at least not yet). I could go
> Multilink PPP, but as the lines are supposed to be redundant, I don't
> want to risk the whole bundle being unusable if one of the links is dead ...

Multilink [is supposed to] gracefully handles member links coming and 
going.  Your other option is cef per-packet, which is fine for most data, 
but potentially bad for VOIP.

----------------------------------------------------------------------
  Jon Lewis                   |  I route
  Senior Network Engineer     |  therefore you are
  Atlantic Net                |
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