plan9-gpl/sys/man/8/cec

.TH CEC 8
.SH NAME
cec \- Coraid Ethernet Console
.SH SYNOPSIS
.B cec
[
.B -d
] [
.B -s
.I shelf
] [
.B -e
.I esc
]
.I interface
.SH DESCRIPTION
The
.I cec
command uses raw Ethernet frames to connect to a CEC
server for console access.  All clients share the same session.  Coraid
appliances are currently the only CEC servers.
.PP
A
.I cec
process starts by probing the specified network interface
(e.g.,
.LR /net/ether0 )
for available CEC servers.  If the shelf address of the server is
specified with the
.B -s
flag, the connection will
proceed immediately upon discovery of the first CEC server
with this shelf address.  Otherwise, a selection prompt
will be displayed showing the discovered CEC servers
available for communication.  If no servers are discovered,
.I cec
exits.
.IP
.EX
0 5 003048865f1e shelf5
[#qp]:
.EE
.LP
The selection prompt accepts
.TP
.I number
Connect to server
.I number
(from the first column),
.TP
.B p
Probe the interface again, and
.TP
.B q
Quit.
.PP
Note the selection number is not the shelf address but the
.IR cec -generated
ID number printed in the leftmost column.
.PP
Once connected to a CEC server, entering the escape sequence
will drop the user into an escape prompt where the user may
type
.L q
to quit the connection,
.L i
to send the escape sequence
across the connection, or
.L .
to continue the connection.
The escape sequence is printed on connection.
.PP
If the
.B -s
option is used,
.I cec
will exit upon closing the connection.
Otherwise,
.I cec
will return to the selection prompt upon connection close.
.SS Options
.TP 1i
.B -d
Output debugging information.
.TP
.BI -s " shelf"
Connect to the server at shelf address
.IR shelf .
.TP
.BI -e " esc"
Set the escape caracter to
.BI control -
.IR esc .
The default setting is
.BR control -\e.
.SH BUGS
The CEC protocol should be integrated with the console server.
The arbitration between the keyboard and network is suboptimal.