Changing the IP Address of the Control Boards in an E10000
require more work than just editing the /etc/hosts file.

If only the hosts file is changed, the resulting cb_reset 
fails in the following way

ON SSP 3.0
==========

beer% cb_reset
Resetting host snax-cb0...
Resetting host snax-cb1...
Failed to reset host snax-cb0
Failed to reset host snax-cb1

ON SSP 3.1
==========

snax-ssp:pizza% cb_reset
Resetting host snax-cb0...
Resetting host snax-cb1...
Failed to receive acknowledgment from cb snax-cb0
Failed to receive acknowledgment from cb snax-cb1
snax-ssp:pizza% 

and in the messages file for the SSP errors similar to the following
will be seen.

Jan 21 13:34:13 snax-ssp cbs: cbs: ERR:[snax]:cbs_get_cbe_ports:/tftpboot/C0A801
01.cb_port:No such file or directory
Jan 21 13:34:13 snax-ssp cbs: cbs: ERR:[snax]:Cbmp_Connect:t_connect failed: t_e
rrno=1, errno=11
Jan 21 13:34:13 snax-ssp syslog: edd: WARNING: EDDApp.cc, 533: Waiting for cbs<-
>cbe connection...
Jan 21 13:34:18 snax-ssp syslog: edd: WARNING: EDDApp.cc, 533: Waiting for cbs<-
>cbe connection...

Checking in the /tftpboot file is will be seen that indeed the
tftpboot file does not exist

snax-ssp:pizza% cd /tftpboot
snax-ssp:pizza% ls
780101B5                         819931B8.SUN4U1
780101B5.cb_port                 820102B6
819931B5                         820102B6.cb_port
819931B5.cb_port                 cb_port
819931B6                         cbe.ima
819931B6.cb_port                 inetboot.SUN4U1.Solaris_2.5.1-1
819931B7                         rm.129.153.49.183
819931B8                         rm.129.153.49.184

On both SSP3.0 and SSP3.1 the command ssp_config needs to be run
to re-register the new IP Address and set the boot files up.


ON SSP 3.0
==========

# /opt/SUNWssp/bin/ssp_config

Beginning setup of this workstation to act as a MAIN or SPARE SSP.


Platform name   = snax
Control Board 0 = snax-cb0 =>
Control Board 1 = snax-cb1 =>
Primary Control Board = snax-cb0

Is this correct? (y/n): n

The platform name identifies the entire host machine to
the SSP software. The platform name occupies a different
name space than domain names(hostnames of bootable systems).

Please enter the name of the platform this ssp will service [snax]: 
Do you have a control board 0? (y/n): y
Please enter the host name of the control board 0 [snax-cb0]: 
I could not automatically determine the IP address of snax-cb0.
Please enter the IP address of snax-cb0: 192.168.1.1
You should make sure that this host/IP address is set up properly in
the /etc/inet/hosts file or in your local name service system.
Do you have a control board 1? (y/n): y
Please enter the host name of the control board 1 [snax-cb1]: 
I could not automatically determine the IP address of snax-cb1.
Please enter the IP address of snax-cb1: 192.168.2.1
You should make sure that this host/IP address is set up properly in
the /etc/inet/hosts file or in your local name service system.

Please identify the primary control board.
Is Control Board 0 [snax-cb0] the primary? (y/n) y

Platform name   = snax
Control Board 0 = snax-cb0 => 192.168.1.1
Control Board 1 = snax-cb1 => 192.168.2.1
Primary Control Board = snax-cb0

Is this correct? (y/n): y

Are you currently configuring the MAIN SSP? (y/n) y


MAIN SSP configuration completed



beer% cb_reset
Resetting host snax-cb0...
Resetting host snax-cb1...
snax-cb0 is ready...
snax-cb1 is ready...



ON SSP 3.1
==========

Note the new 3.1 argument to ssp_config to configure the control board(s)

# /opt/SUNWssp/bin/ssp_config cb

Configuring control boards

Platform name   = snax
Control Board 0 = snax-cb0 => 
Control Board 1 = snax-cb1 => 
Primary Control Board = snax-cb0

Is this correct? (y/n): n
Do you have a control board 0? (y/n): y
Please enter the host name of the control board 0 [snax-cb0]: 
I could not automatically determine the IP address of snax-cb0.
Please enter the IP address of snax-cb0: 192.168.1.1
You should make sure that this host/IP address is set up properly in
the /etc/inet/hosts file or in your local name service system.
Do you have a control board 1? (y/n): y
Please enter the host name of the control board 1 [snax-cb1]: 
I could not automatically determine the IP address of snax-cb1.
Please enter the IP address of snax-cb1: 192.168.2.1
You should make sure that this host/IP address is set up properly in
the /etc/inet/hosts file or in your local name service system.

Please identify the primary control board.
Is Control Board 0 [snax-cb0] the primary? (y/n) y

Platform name   = snax
Control Board 0 = snax-cb0 => 192.168.1.1
Control Board 1 = snax-cb1 => 192.168.2.1
Primary Control Board = snax-cb0

Is this correct? (y/n): y

#

ssp% cb_reset
Resetting host snax-cb0...
Resetting host snax-cb1...
snax-cb1 is ready...
snax-cb0 is ready...