John
First, I'd like to thank you for the information, I appreciate it.
I also have some further questions:
1. How do you measure frame sizez? What tool/monitor you use?
2. Why ISL traffic is more disperse - that means - different?
Assuming he ISL is not used for any other traffic but FICON, it should
contain exactly the same frames + very small amount of control
information. Switch does not rebuild frames. That's theory ;-) Probably
you said about practice, measured values.
Regards
--
Radoslaw Skorupka
Lodz, Poland
John Ticic pisze:
Hello Radoslaw,
I'm not sure I can help but here is some information that may be useful.
I typically see different average transmit and receive frame sizes during
the day (on-line) compared to the evening (batch). I've seen down to
1000 bytes during on-line and around 1700 bytes during batch for DASD.
I haven't actually looked only at tape but would expect the average to
be higher and consistent.
The ISL average sizes seem to be even more disperse.
John.
On Wed, 23 Mar 2011 09:05:51 +0100, R.S.
<[email protected]> wrote:
What is typical FC frame size in FICON environment?
I guess there are two different answers - one for disk, the second for
tape.
Background: I would like to estimate number of BB credits needed for
ISL
between two FICON switches.
--
Radoslaw Skorupka
Lodz, Poland
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