Znyx Networks bh5700 Manuale Utente

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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