vdbench failure due to network switch failure

1. logfile.html

<title>Vdbench R4K0R_1QD/logfile.html</title><pre>
Copyright (c) 2000, 2016, Oracle and/or its affiliates. All rights reserved.
Vdbench distribution: vdbench50406

22:04:51.166 input argument scanned: '-o/home/bguinta/data/R4K0R_1QD'
22:04:51.168 input argument scanned: '-d12'
22:04:51.168 input argument scanned: '-f/home/bguinta/data/R4K0R_1QD/parm.txt'
22:04:51.168 input argument scanned: '-m1'
22:04:51.169 java.vendor                   Oracle Corporation
22:04:51.169 java.home                     /usr/lib/jvm/java-1.8.0-openjdk-1.8.0.131-3.b12.el7_3.x86_64/jre
22:04:51.169 java.vm.specification.version 1.8
22:04:51.169 java.vm.version               25.131-b12
22:04:51.169 java.vm.vendor                Oracle Corporation
22:04:51.169 java.specification.version    1.8
22:04:51.169 java.class.version            52.0
22:04:51.169 user.name                     root
22:04:51.169 user.dir                      /home/bguinta/pm5
22:04:51.169 java.io.tmpdir                /tmp
22:04:51.169 java.class.path               /home/bguinta/bin/vdbench50406/:/home/bguinta/bin/vdbench50406/classes:/home/bguinta/bin/vdbench50406/vdbench.jar
22:04:51.169 os.name                       Linux
22:04:51.169 os.arch                       amd64
22:04:51.169 os.version                    4.9.1-1.el7.elrepo.x86_64
22:04:51.170 sun.arch.data.model           64
22:04:51.170 Fixes: Vdb/SlaveSocket.class 10827
22:04:51.284 Starting slave: /home/bguinta/bin/vdbench50406/vdbench SlaveJvm -m localhost -n localhost-10-170627-22.04.51.141 -l localhost-0 -p 5570  -d12  
22:05:01.324 Waiting for slave connection: localhost-0
22:05:11.442 Waiting for slave connection: localhost-0
22:05:21.561 Waiting for slave connection: localhost-0
22:05:31.678 Waiting for slave connection: localhost-0
22:05:41.795 Waiting for slave connection: localhost-0
22:05:51.912 Waiting for slave connection: localhost-0
22:06:02.029 Waiting for slave connection: localhost-0
22:06:12.195 Waiting for slave connection: localhost-0
22:06:22.311 Waiting for slave connection: localhost-0
22:06:32.429 Waiting for slave connection: localhost-0
22:06:42.547 Waiting for slave connection: localhost-0
22:06:51.862 killCommand: /home/bguinta/bin/vdbench50406/vdbench SlaveJvm -m localhost -n localhost-10-170627-22.04.51.141 -l localhost-0 -p 5570  -d12
22:06:51.862 
22:06:51.862 Terminating attempt to connect to slaves.
22:06:51.862 
java.lang.RuntimeException: Terminating attempt to connect to slaves.
	at Vdb.common.failure(common.java:335)
	at Vdb.ConnectSlaves.connectToSlaves(ConnectSlaves.java:102)
	at Vdb.Vdbmain.masterRun(Vdbmain.java:779)
	at Vdb.Vdbmain.main(Vdbmain.java:601)

2. localhost-0.html

<title>Vdbench R4K0R_1QD/localhost-0.html</title><pre>
Slave summary report for slave=localhost-0

Console log:                     <A HREF="localhost-0.stdout.html">Slave stdout/stderr</A>

3. parmfile.html

<title>Vdbench R4K0R_1QD/parmfile.html</title><pre>

* Contents of parameter file: /home/bguinta/data/R4K0R_1QD/parm.txt

compratio=1.00
histogram=(default,2,4,6,8,10,14,18,22,26,30,35,40,45,50,55,60,65,70,75,80,90,100,150,200,250,300,350,400,450,500,600,700,800,900,1m,2m,3m,4m,5m,6m,7m,8m,9m,10m,15m,20m,25m,30m,40m,50m,60m,70m,80m,90m,100m,150m,200m,250m,300m,500m,1s,5s,10s)
sd=nvme0n1,lun=/dev/nvme0n1,align=4k,openflags=directio
wd=wd,sd=(nvme0n1),xfersize=4k,rdpct=0,seekpct=random
rd=warmup,wd=wd,elapsed=300,warmup=0,iorate=max,threads=1
rd=R4K0R_1QD,wd=wd,elapsed=300,warmup=0,iorate=max,threads=1

4. hosts

127.0.0.1   localhost localhost.localdomain localhost4 localhost4.localdomain4
::1         localhost localhost.localdomain localhost6 localhost6.localdomain6 

Not sure, I may have moved over to a managed switch instead of an unmanaged one.