Netscaler GSLB's primary and standby data center solution

Netscaler GSLB's primary and standby data center solution

http://blog.51cto.com/caojin/1898182

GSLB's primary and standby data center solution ideas:

In fact, this is only a special case of a multi-data center, the location of the multi-Datacenter solution is:

NSGEO1.0

Context=custom

Qualifier1=ispname

Start

"192.168.1.50", "192.168.1.60", "IDC1"

"192.168.1.200", "192.168.1.254", "IDC2"

And the master, the data center only need to put all the customer Ldns address in one, the rest of the address only to do backup, location for

NSGEO1.0

Context=custom

Qualifier1=ispname

Start

"192.168.1.1", "192.168.255.254", "IDC1"

Only the ldns that fall between 192.168.1.1-192.168.255.254 can match, that is, under normal circumstances the user should access IDC1. If the IDC1 has a catastrophic failure, then Ldns falls outside of this range or because the IDC VIP has turned down, then the DNS answer can only be other healthy IP

The configuration is as follows:

*******************************************************************************************

IDC1

Vip

GSLB Service Note plus partner VIP

GSLB Vserver

Location

Site

*******************************************************************************************

IDC2

Vip

GSLB Service Note plus partner VIP

GSLB Vserver

Location

Site

DNS Configuration

*************************************************************************************************************** **

Scenario Effect

Under normal user access IDC2, if IDC2 a service interruption, the user automatically jumps to IDC1

IDC2

IDC1

Artificial interruption of IDC2 services

IDC2 after interruption

IDC1 after interruption

Customer Access Effects

Netscaler GSLB's primary and standby data center solution