[19597] in North American Network Operators' Group
RE: How to loadshare over many E1 links
daemon@ATHENA.MIT.EDU (Martin, Christian)
Fri Sep 18 12:11:13 1998
From: "Martin, Christian" <CMartin@mercury.balink.com>
To: "'Jared Mauch'" <jared@puck.nether.net>,
"'Jesper Skriver'"
<jesper@skriver.dk>,
"'nanog@merit.edu'" <nanog@merit.edu>
Cc: "'tdk-backbone@t.dk'" <tdk-backbone@t.dk>
Date: Fri, 18 Sep 1998 12:01:50 -0400
We're using the Stratacom MGX8220 - We can aggregate more than 8 with
multiple cards...
> -----Original Message-----
> From: Jared Mauch [mailto:jared@puck.nether.net]
> Sent: Friday, September 18, 1998 11:41 AM
> To: Jesper Skriver; nanog@merit.edu
> Cc: tdk-backbone@t.dk
> Subject: Re: How to loadshare over many E1 links
>
>
> 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:
>
http://www.dl.com/online/datashts/dl3800e.pdf
- 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
> (http://www.larscom.com/t3ft3/t3_megae.htm), 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 jared@puck.nether.net
| http://puck.nether.net/~jared/
