Znyx Networks bh5700 - Manual (Page 43)

Finally, it lets the currently saved S70Surviving_Partner script execute. This case would be
the case of a power up of an already configured backup switch when the other HA switch is
unavailable. This case could occur after losing power to the entire chassis.
Central Authority
Modifications can be made to the S60SP_startup script to use a third machine running DHCP
that is not part of the Surviving Partner pair. The third machine is referred to as the Central
Authority.
Setup requires a DHCP daemon configuration file on the Central Authority and a dhclient
configuration file for each of the two Surviving Partner switches in the pair. The format of the
DHCP daemon configuration file is dependent on the machine and operating system being used.
An example can be obtained from the Surviving Partner primary switch in the location
/etc/rcZ.d/surviving_partner/dhcpd.conf.
This configuration will contain configuration for only one of the two Surviving Partner switches.
It must be edited. For example:
subnet 100.0.0.0 netmask 255.0.0.0 {
option broadcast-address 100.255.255.255;
host ZNYX1 {
fixed-address 100.0.0.31;
option dhcp-client-identifier "ZNYX";
option vendor-encapsulated-options
"zsp_conf.1";
}
}
A second host entry must be added with unique information.
subnet 100.0.0.0 netmask 255.0.0.0 {
option broadcast-address 100.255.255.255;
host PRIMARY {
fixed-address 100.0.0.30;
option dhcp-client-identifier "PRIMARY";
option vendor-encapsulated-options
Ethernet Switch Blade User's Guide release 3.2.2j page 43