AB291A Fabric Clustering System Support Guide (12-port Switch), April 2004

Chapter 5
Administration and Management
HP-UX Host Administration and Management
51
Testing Link-level Connectivity
This option is similar to the linkloop command for LAN interfaces. If the -n option is not specified, the
default value for “count” is 1. Setting the count to 0 will result in itutil sending packets indefinitely until an
interrupt signal is received.
Description: This parameter tests link-level connectivity with the remote port specified with the GID (Global
Identifier) for transport type IB.
NOTE The GID of an adapter port is displayed using either the itutil or itutil -i commands as
the “Primary Network Address”.
Syntax: itutil [-n count]-l GID interface_name spigot_id
Syntax Example: itutil -l fe80::2:c901:8a0:8a11 ib0 1
Output Example:
Testing connectivity to Network Address 0x<fe80::2:c901:8a0:8a11>
from IA "ib0", spigot id "1"
Linkloop Succeeded.
Testing Link-level Connectivity with a Specified Number of Packets
This option is similar to the linkloop command for LAN interfaces. If the -n option is not specified, the
default value for “count” is 1. Setting the count to 0 will result in itutil sending packets indefinitely until an
interrupt signal is received.
Description: The -n parameter sends a specified “count” number of linkloop packets to the GID specified in
the -l parameter.
Syntax: itutil [-n count]-l GID interface_name spigot_id
Syntax Example: itutil -n 5 -l fe80::2:c901:8a0:8a11 ib0 1
Output Example:
Testing connectivity to Network Address 0x<fe80::2:c901:8a0:8a11>
from IA "ib0", spigot id "1"
Linkloop Succeeded.
Viewing the Itutil Manpage
If you want to view the itutil man page, you must first add /opt/rdma/share/man to your MANPATH
environment variable. To view the man page for itutil, type this:
man itutil