10-08-2013 01:11 AM
I have an ISLof 4 lines, and all seems well.
I was investigating the BB_credit zero buffer, if we should increase because of a high rate of Time BB_Credit Zero.
On a downstream port i see sometimes a rate of 132 / 128 / 32 % and that is rather high
The other 3 ports dont have such a high rate, just normal what you should expect.
I dont see discarded C3 frames or bad os or enc out errors.....but i'm wondering why i have such a high BB_credit zero rate ....
ANyone any suggestions to help me in one or the other direction ?
Thanks a lot.
10-08-2013 04:46 AM
--->>>I have an ISLof 4 lines,.....
are this the port that for the ISL to -> The ports are divided on 2 different blades, e.g. 2/0, 2/1, 8/0 en 8/1
--->>>On a downstream port.....
when you spoken from "downstream" you have formed a Trunk.
how is this trunk formed ? --->>> 2/0, 2/1, 8/0 en 8/1
10-08-2013 06:50 AM
Is very interesting, Welcome in Club !
I've exact the same situation by a customer and working into a solution, but don't have really one.
the only one is, I got answer from Brocade to try change/set another Fillword, current I've exact the same config LE and Fillword 3.
I believe - in my case - and this is my opinion, the problem is caused due different FC cable leght, and since the Trunk is formed 2+2 Port the trunk itself work like a DPS = Dynamic Path Selection / EBR = Exchange-Based Routing, and this cannot distributed the Buffer correctly.
But this is all my Theory, practices side is another story...... and I've to wait till the customer have a window to made some test
10-08-2013 11:54 PM
Thanks for the reply Antonio , appreciate it !
I guess i have to wait for the other customer then.
I thought of busy lines during backup of the Continuous Access Replication of the EVA's but thats not the case because i check the rates every day now and see what happened on the SAN network last night.
This all come to light when we had error messages on the EVA storage "Exceeded data exchange rate"
And i'm situated in the center of Holland.
10-10-2013 10:16 AM
The "Excessive data exchange retry rate" indicates a issue in the replication path, this could be as a result of not following the CA implementation guide. I t contains parameters you should set depending on the replication protocol etc..
It could also be errors on the link so check your portcounters. Most likely you want to reset the counters first to give you a better insight on which counters are moving.
Have you called HP already to let them now you're having issues?
On a side note, Utrecht perhaps,Leusden apparently and working for Ten.
Say hi to Marije please.
I'm a dutchie as well (Leiden). Not that the location has anything to do with the error
10-14-2013 01:39 AM
Hi there bongiorno
I downloaded your calculator but what do you mean by this line :
|Type in the frame "Payload" size in Bytes (in cell D19)=======>|
What you mean by payload ?