Brocade Virtual ADX Server Load Balancing Guide (Supporting ADX v03.1.00) User Manual
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Brocade Virtual ADX Server Load Balancing Guide
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Changing the Load-Balancing Predictor Method . . . . . . . . . . . . . . . 21
Configuring a weighted predictor . . . . . . . . . . . . . . . . . . . . . . . .22
Configuring dynamic weighted predictor . . . . . . . . . . . . . . . . . . 24
Configuring the smooth factor . . . . . . . . . . . . . . . . . . . . . . . . . .25
Real server ports. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Disabling or re-enabling application ports . . . . . . . . . . . . . . . . . 27
Globally disabling application ports . . . . . . . . . . . . . . . . . . . . . .28
Disabling SLB to a server when an application goes down . . .28
Slow-start mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
Enabling or disabling the keepalive health check . . . . . . . . . . .29
Configuring a real port as TCP-only or UDP-only . . . . . . . . . . . .30
Configuring a stateless port . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Source NAT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Enabling source NAT globally . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Enabling source NAT on a real server. . . . . . . . . . . . . . . . . . . . .33
Configuring a shared source IP address for NAT . . . . . . . . . . . .34
Client subnet based source NAT . . . . . . . . . . . . . . . . . . . . . . . . .34
Enabling port allocation per real server for source NAT IP . . . .35
Remote server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Sticky and concurrent connections . . . . . . . . . . . . . . . . . . . . . . . . . .36
Configuring sticky ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Configuring stickiness based on client’s subnet . . . . . . . . . . . . 37
Setting the sticky age . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Increasing the sticky-age per VIP longer than 60 minutes . . . .38
Sticky connection return from backup server to primary . . . . .39
Group sticky: Layer 4 SLB to server group . . . . . . . . . . . . . . . . .39
Enabling a concurrent port . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Application port grouping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Tracking primary ports. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
Track port group function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44
TCP/UDP application groups configuration example. . . . . . . . . 47
Primary and backup servers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49
Designating a real server as a backup . . . . . . . . . . . . . . . . . . . . 51
Enabling a VIP to use the primary and backup servers. . . . . . . 51
Configuration example. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
Designating a real server port as a backup . . . . . . . . . . . . . . . .53
Per server based real server backup . . . . . . . . . . . . . . . . . . . . .54
Configuring Direct Server Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Configuring L2 Direct Server Return. . . . . . . . . . . . . . . . . . . . . .58
Configuring L3 Direct Server Return. . . . . . . . . . . . . . . . . . . . . .63
Displaying server information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65
Defining a port range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66
Using a port range under a real server definition . . . . . . . . . . .67
Using a port range under a virtual server definition . . . . . . . . .67
Binding a port range for virtual ports to a real server. . . . . . . .67
Defining port profile for port range. . . . . . . . . . . . . . . . . . . . . . .68
Displaying a list of port ranges . . . . . . . . . . . . . . . . . . . . . . . . . .68