W dniu 2014-05-27 21:22, Ambros, Thomas pisze:
I'm trying to figure out a slightly vexing issue with SE to HMC connectivity
from one of the four CECs on the floor.
One of the LAN adapters on one SE does not seem to be functioning, I walked
through the physical connectivity with one of the network infrastructure people
here and all follows through, appears active and seems set up as documented.
SOO access to the SE from the HMCs works fine.
Testing the Support Element Connectivity IPV4 address from the HMC is
confusing: it pings, starts a session but return connection from the SE times
out.
The issue is reaching the HMC IPV4 addresses from the SE, which causes problems
reaching the HMC as the NTP server in our mode of configuration from the CECs.
I've compared the SE configurations of a CEC that works with the one that
doesn't, seeing nothing I am now looking for some kind of decent documentation
on configuration and troubleshooting of the HMC to SE network. So far I
haven't found anything that is any more than pretty basic. Anybody have
information on what manuals contain some kind of in depth information on the
subject?
Thanks...
Thomas Ambros
zEnterprise Operating Systems
zEnterprise Systems Management
518-436-6433
Well,
I don't understand. You can ping SE from HMC, you can open SOO from HMC.
So the communication at physical level is working OK.
What is not OK?
BTW: I would try to start from the beginning: write down all the network
configuration details. IP address(es) of SE, alternate SE, HMC. If your
network have other CPCs and HMCs connected then also write it down. Be
sure there are no mistakes like duplicated IP, wrong gateways netmasks,
etc. It would be helpful to connect to the network regular PC with tools
liek ping, netstat, etc. HMC is not convenient enough to do it more than
occasionally.
HTH
--
Radoslaw Skorupka
Lodz, Poland
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