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NetScaler GSLB Configuration Guide

Latest reply: Mar 25, 2022 10:35:57 2329 4 2 0 0

Hello, everyone!

This post will introduce to you the NetScaler GSLB.

GSLB Concept

Global Server Load Balancing (GSLB) allocates traffic among servers of different regions on the wide area network (WAN), including the Internet, providing customers with smooth access to the nearest servers and ensuring the service quality.

GSLB and Network Disaster Recovery

In Huawei solutions, GSLB can implement disaster recovery (DR) for web interfaces (WIs) it has interconnected with, which is known as network DR.

GSLB Implementation

GSLB is load balancing (LB) on the WAN. According to GSLB algorithms, local WIs have priority over remote WIs when GSLB selects WIs. If local WIs become faulty, GSLB will select remote WIs.

Local WIs and remote WIs are geographically contrasted. Local WIs means WIs near to TC/SCs to which users logged in, while remote WIs are WIs relatively far from TC/SCs to which users logged in.

GSLB Network Topology

In the GSLB network topology, two sets of vDesktop environments are deployed for DR. GSLB can be used in one set of vDesktop environment. If GSLB is used in one set of vDesktop environments, GSLB must be LB that has priorities.

d

The following describes components in the GSLB topology:

l   A and B are two users in different regions. User A is near to Site 1 and User B is near to Site 2. User A prefers a Site 1 DNS server as the active one and a Site 2 DNS server as the standby one. In contrast, User B prefers a Site 2 DNS server as the active one and a Site 1 DNS server as the standby one.

l   There are multiple WIs in both Site 1 and Site 2 and the LB function is added for them.

l   Server IP addresses that are configured by GSLB are virtual IP addresses (VIPs) provided by LB for the external instead of actual IP addresses of WIs.

l   DNS servers are set on NetScaler to implement the GSLB function. IP addresses resolved by DNS are IP addresses of GSLB.

l   Triangles on the right side indicate VMs that are being used.

For details about NetScaler installation and configuration, see the attachment.

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user_2919429
Created Dec 29, 2016 00:57:56

thanks!
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olive.zhao
Admin Created Mar 18, 2022 09:13:58

Thanks for your sharing!
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lisali
Created Mar 18, 2022 09:14:23

gslb
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user_4358465
Created Mar 25, 2022 10:35:57

Awesome configuration guide to NetScaler GSLB
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