__________________________________________
Ranga Nathan / CSG
Systems Programmer - Specialist; Technical Services;
BAX Global Inc. Irvine-California
Tel: 714-442-7591 Fax: 714-442-2840
"Seader, Cameron" <[EMAIL PROTECTED]>
Sent by: Linux on 390 Port <[EMAIL PROTECTED]>
12/01/2004 01:57 PM
Please respond to Linux on 390 Port
To: [EMAIL PROTECTED]
cc:
Subject: 127 device limitation for hipersockets
I am currently running into an issue, so i'm posting to this group to see
if anyone has any solution for me on this issue.
I am running z/VM 4.4, SLES 8 and SLES 9 64 bit, with hipersockets on each
guest.
currently we have two hipersockets defined per guest, one with 64k mtu
block size and one with 8k mtu block size. We use the one smaller mtu size
hipersocket to talk among the other guests from guest to guest and to do
authentication to a USS LDAP server under MVS. The 64k mtu block size
hipersocket is being used for backups through fdr upstream on the mvs side
and notice a nice improvement on speed for backups. The problem we are
running into is the 127 device limitation.
I dont recall this limitation. Is this a Hipersockets limitation? Do you
mean 127 x 4 addresses?
we figure if we keep going the way we are we will only be able to have
about 20 guests, and our future plans out stretch this to more than 40 and
50. We also thought of just useing the one hipersocket that had the large
mtu just for everything and have one hipersocket per guest, and we figure
we can get about 40 guests if we go that route, but still we want more
than 40 guests eventually. Does anyone have a solution for this? What is
everyone else doing? Is there a work around for this issue we are running
into? Suggestions much appreciated.
Thanks,
Cameron Seader
[EMAIL PROTECTED]
208-395-8228
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Thank you. A1.
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