Network Connection Loss on 800xA for DCI Connectivity Servers
In my Event viewer, I am sporadically seeing network connectivity losses (with restoration followed shortly thereafter - typically a few seconds or less) on my 800xA for DCI Connectivity Servers (there are four of these servers). This is not happening on any of the other nodes, so I presume that this network connection loss is on the DCI control network. The network binding order appears to be correct per 3BUA001068R003 - ECC MUX Release Notes Version 2.1 (page :
Client-Server Network 1 (172.16.x.x)
Client-Server Network 2 (172.17.x.x)
DCI Network 1 (Network #1)
DCI Network 2 (Network #0)
These symptoms seem similar to the first listed issue in the 'Known Problems" section if 3BUA001068R003. However, this issue is explained as being associated with large file copies, which I do not believe to be the case in my instance (unless DCI is performing large and frequent file copies behind the scenes?).
These 800xA for DCI Connectivity Servers are Virtual Machines running on two redundant VMWare ESXi 5.0.0 hosts. Two of the servers are running on one host, the other two are running on the other host. Each host has an identically configured virtual switch, and connects to an external managed switch.
Any ideas on what could be causing this frequent disconnection?
I may be totally wrong out here, but if the network disconnections/connections are reported by RNRP the following Product Bulletin may be applicable: 3BSE073384; be sure to verify that "netw_down/up" is seen in the log output.
RNRP version 3.18 can be requested as a TC, but also be found on the installation media on later revisions.
I opened up RnrpMon and I believe I'm seeing something similar to (though not exactly like) what you are describing and what is described in 3BSE073384:
While it doesn't say "Netw_down", etc. it is evident in RNRP that the 800xA for DCI nodes, as well as others, are going down and coming back up. The Event Viewer only exhibits the 800xA for DCI connectivity servers going down and coming back up.
Side notes: The DCI control network does not use RNRP. Also, in the 3BSE073384 document, one of the corrective actions is to install 800xA Base FP3 or RevB. I am running 800xA Base FP4 so I would expect to not see this issue.