Remote Command-Line Interface

C H A P T E R 6

This chapter describes the remote command-line-interface (CLI). Topics include:

Remote Command-Line Interface Introduction

IPC Setup for Remote CLI

Accessing the Remote CLI

Debugging Remotely

Coredump Support

System Configuration

Remote Command-Line Interface Introduction

The remote command-line interface (CLI) provides you remote access to commands for you to configure and gather the Netra DPS runtime system information (for example, platform). The CLI also provides you remote access to the Netra DPS runtime interactive debugger and a core dump facility.

IPC Setup for Remote CLI

To access the CLI remotely, you must have the interprocess communication (IPC) mechanism set up on your system (see Chapter 5 for IPC information). In the same way that the IPC channel with ID 4 was set up to be used by the IP forward reference application, a channel with ID 1 must be set up for the remote CLI. SUNWndpsd must be installed on the Solaris system that will host the remote CLI.

Note - The remote CLI communicates over IPC channel number 1 (one), therefore, IPC channel number 1 should not be used for any other purpose.

The applications that use the remote command-line interface must have the following:

The cli type is declared as “remote” in hardware configuration file teja_architecture_set_property(cmt1_chip, “cli_type”, “remote”);

On one of the CPU strands, the Fast Path Manager must be running lwrte_fastpath_manager_process();USR_LIBS contains common, LDC and IPC libraries

USR_LIBS = /opt/SUNWndps/lib/common/lwrtecmn.o /opt/SUNWndps/lib/ldc/lwrteldc.o /opt/SUNWndps/lib/ipc/lwrteipc.o

Accessing the Remote CLI

Once IPC channel number 1 is set up between the LWRTE and the remote CLI Solaris host system, you are ready to access the remote CLI.

To access the CLI Console

1. Connect to the Solaris CLI host system.

Use telnet to the hosting Solaris system at the default port number 30001.

# telnet solarisdomain 30001
Trying 192.168.1.6...
Connected to solarisdomain.
Escape character is ’^]’.
ndps>

2. Enter help at the prompt, as shown in this example, to list options.

ndps> help
        connect                 : connect to NDPS
        disconnect              : disconnect from NDPS Channel
        send break dbg          : jump into debugger
        send break sys          : jump into system cli
        cont                    : quit from debugger
        c                       : quit from debugger
        coredump [-d <dump dir>] <corename>     : dumps lwrte core
                [-d <dump dir>] dump directory (default: "/var/lwrtedump")
                <corename> core dump file name
        quit                    : quit from system cli
        exit                    : quit this program
        help                    : help for this
        console [-f file]       : connects to runtime console
                                  file is the optional log file
ndps>

3. To connect to the remote CLI, type connect at the prompt:

Type disconnect, as shown, to close the channel to the remote CLI.

ndps> connect
Opening channel 1
IPC channel #: 1
ndps> disconnect
Closing channel 1

4. To close the connection, type exit at the prompt.

ndps> exit
the IPC link is DOWN or CLOSED, please type connect to bring it up again!
Connection to sol closed by foreign host.
#

Debugging Remotely

Once connected to the Netra DPS runtime, you can access the Netra DPS debugger.

To Access the Netra DPS Debugger

Type the send break dbg command:

ndps> connect
Opening channel 1
IPC channel #: 1
ndps> send break dbg
enter NDPS debugger...
dbg>

Type help or ? for help options.

Type c or cont to quit the debugger program:

dbg> c
exit NDPS debugger...
ndps>

Coredump Support

Coredump is supported under the Debugger program (see Debugging Remotely). From the dbg mode, use the coredump command to dump the LWRTE system core. The coredump command has the following format:

coredump [-d dump_dir] corename

dump_dir is the directory where the core is saved on the CLI hosting Solaris system. By default, the core is saved in /var/lwrtedump.

corename is the core file name. The next available numeric is appended to this core file name, followed by .gz.

dbg> coredump core
Using dump directory “/var/lwrtedump”
Total dumped: 74024954 bytes, compressed to: 456741 bytes
finished coredump successfully!
dbg>

The preceding core file is created at /var/lwrtedump/core-1.gz on the remote CLI host system (solarisdomain).

System Configuration

You can collect system information and, if desired, change the configuration from the system (sys) mode.

To Go to the `sys` Mode From the Remote CLI

1. Connect to the remote CLI.

See Accessing the Remote CLI.

2. To connect to sys mode, use the send break sys command.

ndps> connect
Opening channel 1
IPC channel #: 1
ndps> send break sys
enter NDPS system cli...
sys>

3. Enter help for options.

sys> help
        set             - set commands
        clr             - clear commands
        show            - show commands
        help            - help commands
        version         - version command
        quit            - quit sys cli command
sys>

4. To disconnect from sys mode, type quit.

sys> quit 
exit NDPS system cli... 
ndps>