User's Guide
Managing HyperFabric
Verifying Communications within the Fabric
Chapter 5
97
Verifying Communications within the Fabric
You can verify the communications within the fabric by running the clic_probe
command, which is described below. You can also use clic_probe to verify the status of
specific adapters.
IMPORTANT You should also check your /etc/hosts file—when you are using files for host name look
up—to ensure that the entries for all of the systems are in the correct format: the official
host name, which is the full domain extended host name, and any alias names. For
example:
IP_address
bently6.corp3.com bently6
IP_address
bently4.corp7.com test1
IP_address
bently2.corp4.com test3
The clic_probe Command
Run the clic_probe command to send 256-byte packets to verify the link out to and
back from a specific destination, optionally using a specific adapter for the verification.
The destination can be either a node or a switch (if a switch is part of the fabric).
If you include /opt/clic/bin in your PATH statement, you can run the command as it is
shown below. Otherwise, you must include /opt/clic/bin as part of the command
name (that is, /opt/clic/bin/clic_probe).
You do not have to be logged in as root to run this command.
The syntax is as follows:
clic_probe
node_name
[-c
adapter_ID
]
[-c
adapter_ID
-r
VRID switch_hopcount
]
[-l -c
adapter_ID
] [-s -c
adapter_ID
]
[-p
packet_count
] [-?]
Note that some of the lines in the above syntax are indented for readability purposes
only. When you actually type the command, you do not indent anything.
The command parameters are as follows:
•
node_name
specifies the node you want to verify. This value is conditionally
required—you must specify it when you are verifying traffic to a remote node, unless
you use the -r parameter (described below).
• -c specifies that you want to use the adapter identified by
adapter_ID
for the
verification.
• -r specifies that
VRID switch_hopcount
is the routing information for the adapter.
To determine the
VRID
and
switch_hopcount
to specify, first run the
clic_stat -d VRID command (see “The clic_stat Command” on page 101). Note
that if you specify this parameter (-r
VRID switch_hopcount
), you must also specify
the -c
adapter_ID
parameter (described above).