3.
Transfer a file to a different remote host on the network. Use the
netstat
command to check for lost packets.
If network congestion does not appear to be the cause, contact
your HP representative. See
“Reporting problems ” (page 83)
for
more information.
Connection
stays up?
NO
YES
If the connection terminates abnormally or a network application
appears to hang, complete the following steps:
1.
Test the network to determine whether the problem is on the local
host, remote host, or a host on the path between the two.
2.
After you identify the host with the problem, do the following:
a.
Confirm that the NIC is properly configured. Verify that the
broadcast address and address mask for the local host are
correct.
b.
Make sure the local host's
/etc/hosts
file has the correct
IP address for the local host.
c.
Make sure the cabling from the local host to the network is
intact and properly connected.
d.
If connected over a local area network (LAN), verify that the
Address Resolution Protocol (ARP) entries are correct and
that the system is properly connected to the LAN.
e.
Check the
/var/adm/nettl.LOG000
file to see if there are
any errors (for example, cable disconnection messages).
Format the
nettl.LOG000
file using the following command:
# netfmt -N nettl.LOG000
Problem still exists?
Report your problem to
HP. See
“Reporting
problems ” (page 83)
.
Solving failover group problems
Link partner
configured?
NO
YES
Verify that the switch is configured correctly. Refer to the appropriate
switch documentation to determine if the switch ports connected to
the server are configured correctly for link aggregation (trunking).
Failover group
configured?
NO
YES
Verify that the failover group is configured by issuing the following
command:
# nwmgr -A all -c lanxxx
where
xxx
is the aggregate instance number.
If the failover group is not configured (Mode field is Not_Enabled),
use the System Management Homepage to configure it. For more
information, see
“Configuring a failover group” (page 35)
.
NOTE:
One of the ports in the failover group must have an IP address
configured on it.
Failover group
UP?
NO
YES
Verify that the failover group is up by issuing the following command:
# nwmgr -A all -I xxx -S apa
where
xxx
is the failover group instance number.
If the failover group (LAN_MONITOR mode) is enabled, the APA
State is
Up
.
74
Troubleshooting HP APA
