Re: APPN/APPC Data Transfer Benchmark?

I don't remember all the details as to when twinax was removed from the
hardware but essentially SNA (if you use it) runs within TCP/IP. As a
result, using SNA over TCP/IP will be slower than APPC/APPN which is a SNA
protocol. Basically, your system is almost certainly using TCP for all
communications hence APPC/APPN will be slower as it has to convert the
APPC/APPN to run over TCP/IP and then at the target end, convert it back to
APPN/APPC.

The only advantage to using APPC/APPN is that APPC/APPN is more secure and
if someone is hacking your line, its way more difficult to interpret the
SNA packets.

Darryl.

On Mon, Apr 13, 2020 at 2:42 PM Patrik Schindler <poc@xxxxxxxxxx> wrote:

Hello Bryan,

thanks for your input!


Am 13.04.2020 um 14:10 schrieb Bryan Dietz <bdietz400@xxxxxxxxx>:

I recall a problem we had with Cisco routers/switches. Ours was a

routing problem, and had to do the the APPC “ARP” request set out. The fix
was to (re)create the line like below: CRTLINETH ETHSTD(*ETHV2)

I know about this issue. It wasn't a routing problem, but an ethernet
framing difference. I learned that, too and by leaving the default *BOTH,
everything's working as expected. :-)

When doing this you also need to re-configure the IP address and

associated routes.

Yes, but in here, it's a different case. With wrong framing, stuff doesn't
work at all. In here, it works, albeit only for a few seconds until IOS
crashes. :-)

:wq! PoC

PGP-Key: DDD3 4ABF 6413 38DE - https://www.pocnet.net/poc-key.asc


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