We've been looking but haven't been finding.

What has us puzzled is the ETS/STP interface setup on the SE.  The machine is 
on a /24 vlan.  If we try to define each ETS LAN Adapter with an IP address and 
interface subnet mask where the IP addresses are in the same subnet there is an 
address conflict and the second configuration can't be saved.  So we defined 
subnet masks that worked as a subset of the /24 vlan and keeping the two IP 
addresses in their own range we were able to save the ETS LAN Adapter configs:

ETS1 10.xx.xx.2 mask 255.255.255.0, ETS2 10.xx.xx.3 mask 255.255.255.0, 
conflict.

ETS1 10.xx.xx.2 mask 255.255.255.192, ETS2 10.xx.xx.66 mask 255.255.255.192, no 
conflict.

That sort of makes sense.   I probably will go back in and change the subnet 
mask so we move the second IP address nearer the first just to be tidy but it 
isn't necessary because there's nothing on that entire vlan except the z 
machines.

However, there is a single selection for the default gateway - you can choose 
ETS1 or ETS2.  It made sense that we'd use ETS1 and the default gateway of 
10.xx.xx.1 which matches up to the vlan.  That works.  Just for fun we changed 
off that definition and sure enough the STP network's ETS connectivity test 
failed.    Default gateway must match the vlan.

The single interface for the default gateway leaves us puzzled.  If ETS1 fails 
for some reason, we think we're going to have to go in and reconfigure ETS2 to 
maintain our timer network.  We can't be thinking right.

Has anybody encountered good documentation on the setup, better than Redbooks 
like the Server Time Protocol setup guide that mention in passing that things 
have changed but don't specify how?  The z16 Tech Guide doesn't appear to have 
any good info, either, unless I am totally overlooking it.

Thomas Ambros




KeyCorp Public

This communication may contain privileged and/or confidential information. It 
is intended solely for the use of the addressee. If you are not the intended 
recipient, you are strictly prohibited from disclosing, copying, distributing 
or using any of this information. If you received this communication in error, 
please contact the sender immediately and destroy the material in its entirety, 
whether electronic or hard copy. This communication may contain nonpublic 
personal information about consumers subject to the restrictions of the 
Gramm-Leach-Bliley Act. You may not directly or indirectly reuse or redisclose 
such information for any purpose other than to provide the services for which 
you are receiving the information.

127 Public Square, Cleveland, OH 44114

If you prefer not to receive future e-mail offers for products or services from 
Key, send an email to mailto:[email protected] with 'No Promotional E-mails' 
in the SUBJECT line.

----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [email protected] with the message: INFO IBM-MAIN

Reply via email to