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Re: How to loadshare over many E1 links

  • From: Jared Mauch
  • Date: Fri Sep 18 11:50:29 1998

	This is a problem because igp issues:

nnn-7202(config)#router ospf 1
nnn-7202(config-router)#maximum-paths ?
  <1-6>  Number of paths

	Because of this, you are unable to hanle those multiple paths
past 6.

	You also have the same isues with isis:
nnn-7202(config)#router isis home1
nnn-7202(config-router)#maximum-paths ?
  <1-6>  Number of paths

	I don't have a pdf viewer (on this machine), so can't cite this 
right now, but I think that the dl imux will handle up to 8 E1's:
	- jared

On Fri, Sep 18, 1998 at 09:57:08AM +0200, Jesper Skriver wrote:
> Hi,
> How would you loadshare over many (>6) parallel E1 links. Currently we
> do it by connecting them directly to the Cisco's in each end, and do
> CEF based per-packet loadsharing, it works fine, but support a max of
> 6 E1's ...
> I've been thinking om something similar to the Larscom inverse MUX
> (, but this one only support
> 4 E1's, then I can use multiple i-mux's and loadshare over the 8M links
> they provide, but it seems like a poor solution.
> Yes, I do know that a E3 would be a far better choice, but our ADM 
> (Add-Drop-Multiplexer??) at this specific location only support
> E1's :-(
> /Jesper
> -- 
> Jesper Skriver (JS249-RIPE), Network manager      
> Tele Danmark DataNet, IP section (AS3292)
> One Unix to rule them all, One Resolver to find them,
> One IP to bring them all and in the zone to bind them.

Jared Mauch  | pgp key available via finger from

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