Using Border Gateway Protocol For Gslb - Radware Alteon Application Manual

Alteon Application Switch Operating System Application Guide
Global Server Load Balancing
Table 65: GSLB Configuration Behind NAT Devices (cont.)
IP Address Type
Remote servers
Alteon public IP (NAT)—
no need to configure
To add a NAT device IPv4 address to an Alteon server
1. Set the network preference to IPv4.
>> # /cfg/slb/virt 1/ipver v4
2. Add the service public IP address (NAT) of the device to the Alteon server.
>> # /cfg/slb/virt 1/nat
>> Virtual Server 1# nat
Current NAT IP address: 0.0.0.0
Enter new NAT IP address: 145.121.34.3
To add a NAT device IPv6 address to an Alteon server
1. Set the network preference to IPv6.
>> # /cfg/slb/virt 1/ipver v6
2. Add the service public IP address (NAT) of the device to the Alteon server.
>> # /cfg/slb/virt 1/nat
>> Virtual Server 1# nat
Current NAT IP6 address: 0:0:0:0:0:0:0:0
Enter new NAT IP6 address: 173.121.34.5

Using Border Gateway Protocol for GSLB

The Border Gateway Protocol (BGP)-based GSLB uses the Internet's routing protocols to localize
content delivery to the most efficient and consistent site. This is done by using a shared IP block
that co-exists in each Internet Service Provider (ISP) network and is then advertised, using BGP,
throughout the Internet.
Because of the way IP routing works, BGP-based GSLB allows routing protocols to route DNS
requests to the closest location, which then return IP addresses of that particular site, locking in the
requests to that site. In effect, the Internet is making the decision of the best location for you,
avoiding the need for advanced GSLB.
758
Site A
173.121.34.5 (site B
service public IP)
155.23.112.39
(site C service IP)
145.121.34.4
Site B
145.121.34.3 (site A
service public IP)
155.23.112.39
(site C service IP)
173.121.34.6
Document ID: RDWR-ALOS-V2900_AG1302
Site C
145.121.34.3 (site A
service public IP)
173.121.34.5
(site B service public
IP)