HP Auto Port Aggregation Administrator's Guide HP-UX 11i v3 (766140-001, March 2014)
# nwmgr --st -c lanxxx
where xxx is the port number (for example, 1, 4, or 10).
If the Operation Status is UP, see the steps for Link partner
configured?.
If the status is down, check the cabling from the NIC to the switch and
see the steps for NIC operating?.
If a remote host's network is not reachable, the following message is
displayed in response to the ping command:
network is unreachable
Complete the following steps:
1. Ensure that the network devices are configured properly on the
local host, using the netstat -i command.
2. Verify that the routing tables on the local host are correct, using the
netstat -r command.
If a host is not known, the following message is displayed:
unknown host
Complete the following steps:
1. Verify that the user is trying to reach the remote host using a valid
host name.
2. Verify that the remote host is in another name domain and that the
user specified the full domain name.
3. If your site uses the Domain Name System (DNS) for name-to-address
translation, look in the /etc/nsswitch.conf file to see if nis
is specified as a service for the hosts database entry. If it is not,
add it. Also, verify that the DNS service has information about the
remote host.
4. If your site uses the NIS name service for name-to-address
translation, look in the /etc/nsswitch.conf file to see if nis
is specified as a service for the hosts database entry. If it is not,
add it. Also, verify if the NIS service has information about the
remote host.
5. If your /etc/nsswitch.conf file lists files as the only
name-to-address translation mechanism, the /etc/hosts file does
not have information on the remote host. See nsswitch.conf(4) for
more information.
If a remote host is not reachable, the following message is displayed:
host is unreachable
Complete the following steps:
1. Inspect the cabling between the local host and the link partner.
2. Perform a loopback test on your own system by using the ping
command. If this is successful, your system is operating properly to
the Network Layer (OSI Layer 3).
3. Verify the remote host is running, using the ping command. If the
remote host does not respond, ask the host's system administrator
to start the host. For additional information about the ping
command, see “Testing access to Internet network hosts” (page 68).
60 Troubleshooting HP APA