Valued helpers,
We are running z/OS v1R13 and I am now looking at LanGroups. We changed
from DEVICE/LINK statements to INTERFACE statements in our TCP/IP Config. Now
I have one LanGroup and one VipaOwner instead of four LanGroups and four
VipaOwners.
I have looked through the IP Config reference and guide and I didn't find
anything on LanGroups. I looked in the IP System administrator's commands
under the Netstat Devlinks report and it talks about the IPv4 LAN Group
Summary. It says "The stack creates a LAN group when it detects redundant
connectivity to a LAN".
With DEVICE /LINK definitions:
NETSTAT DEVL - LanGroup: 0001
Name Status
ArpOwner VipaOwner
------- -------
------------- --------------
OSA9100LNK ACT
OSA9100LNK Yes
LanGroup: 0002
Name Status
ArpOwner VipaOwner
------- -------
------------- --------------
OSA9000LNK ACT
OSA9000LNK Yes
LanGroup: 0003
Name Status
ArpOwner VipaOwner
------- -------
------------- --------------
OSA9300LNK ACT
OSA9300LNK Yes
LanGroup: 0004
Name Status
ArpOwner VipaOwner
------- -------
------------- --------------
OSA9200LNK ACT
OSA9200LNK Yes
With INTERFACE definitions:
NETSTAT DEVL - LanGroup: 0001
Name Status
ArpOwner VipaOwner
------- -------
------------- --------------
OSA9500LNK ACT
OSA9500LNK No
OSA9600LNK ACT
OSA9600LNK No
OSA9400LNK ACT
OSA9400LNK Yes
OSA9700LNK ACT
OSA9700LNK No
Q). Do these new LAN group assignments and VipaOwner assignments have any
impact on Load Balancing across the four OSAs? Should we be concerned about
these changes?
Thank you, Dave
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