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Re: (ASCEND) MAX 4000 Performance Questions



ISDLH.2@womans.com (HOFF,DANIEL L) writes:
> 
> On a scale of +3 to -3, with +3 being the greatest performance gain
> and -3 being the hardest performance hit, how would you guys estimate
> the effect of these on throughput/load on a MAX?
> 
>  - Call filter processing
>  - Data filter processing
>  - LQM
>  - Link compression (is there a lot of variance between the hit from
>    Stac-9 vs. MS-Stac, for instance?)
>  - Van Jacobsen header compression
>  - Proxy mode
>  - Routing vs. bridging

Well LQM and VJ don't seem to do much harm and I try to avoid the rest.
The biggest performance boost I encountered some time ago is to set

Ethernet->Mod Config->TServ options->
                            Packet Wait time=50
                            Packet characters=30
instead of the default 0. (At least with old V.34 modem cards)
There is a an overall increase of some 10% in download througput.

As a side effect, the Rx Pkt display gets much more reasonable and
hex2ppp has much less hazzle with async ppp debug output from wanxxx. :-)

-- 
Manfred Kwiatkowski, ZRZ (Zentraleinrichtung Rechenzentrum), Sekr.: EN 50,
Technische Universitaet Berlin, Einsteinufer 17, D-10587 Berlin, GERMANY.
INTERNET: kwiatkowski@zrz.TU-Berlin.DE             phone: +49 30 314 24355
X.400: s=kwiatkowski ou=zrz p=tu-berlin a=d400 c=de  fax: +49 30 314 21060
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