
Model 5399 Remote Access Concentrator Network Administrator’s Guide for UNIX
Chapter 1 Network Administration
A-50
Book A
AFD Status
Automated Firmware Download (AFD) runs at boot time to download
the latest copy of firmware. The AFD operates in enable (download if out
of rev.) and disable (never down load) mode. To check the status during
boot time, you use the stats command. This command displays the system
status. AFD messages are only displayed during a download. Once the
down load is complete, no AFD message are displayed.
Typical Configuration Problems
Each 5399 RAC hardware platform provides a hardware installation
guide that contains troubleshooting information. Many problems that
occur after an 5399 RAC is running are due to improper configuration of
the 5399 RAC or a host. The following subsections describe the
symptoms of several common configuration problems.
Connection Delays When Using Name Servers
5399 RAC users may notice connection delays under certain
circumstances. If name_server_1 and name_server_2 are defined, and
name_server_1 is down or does not exist, there will be a 15–30 second
delay until name_server_2 resolves the name during a connect to a host
using rlogin or telnet. If both name servers are down or they do not exist,
there will be up to a 45-second delay. If the host to which the user ID is
trying to connect is in not in the RWHO host table, an error occurs; the
terminal displays a message informing the user that the name server is
unreachable.