Unable to run utility vnetperf

Hi,

I am not able to run vnetperf vertica utility.

I get the below error message after about 5 minutes.

[dbadmin@vertica-b .ssh]$ /opt/vertica/bin/vnetperf --identity-file id_rsa
2018-04-27_12:33:28,297 ERROR: [Connector Thread 10.3.0.235 0x7fb9b415e700] Couldn't connect to 10.3.0.235 (family 2, attempt 0): Connection timed out; errno=110 (Connection timed out)
2018-04-27_12:33:28,297 ERROR: [Connector Thread 10.3.0.48 0x7fb9b395d700] Couldn't connect to 10.3.0.48 (family 2, attempt 0): Connection timed out; errno=110 (Connection timed out)

I can do passwordless ssh between the host with dbadmin user.

Am I missing anything here?

Thanks,
Minat