Enabling syn ack threshold, Replacing the source mac address of the packet, Cloning real servers – 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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Miscellaneous options
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Enabling SYN ACK threshold
The SYN ACK threshold specifies the number of contiguous unacknowledged TCP SYN ACKs the
Brocade Virtual ADX allows to accumulate for a real server, before determining that the server is
down and marking it FAILED. For examples and configuration information, refer to
Syntax: server reassign-threshold number
The number variable specifies the number of contiguous unacknowledged TCP SYN ACKs for the
threshold. Enter an integer from 6 to 4000. By default, the Brocade Virtual ADX assigns a threshold
value of 20.
Replacing the source MAC address of the packet
When you configure the server source-mac-replacement command, if the incoming and outgoing
SLB traffic belongs to different VLANs, the source MAC address of the packet will be replaced using
the Brocade Virtual ADX’s MAC address.
Virtual ADX(config)#server source-mac-replacement
Syntax: [no] server source-mac-replacement
Cloning real servers
To simplify configuration for large server farms, you can clone real servers. When you clone a real
server, you make a copy of the real server configuration information under a new name. The copy
includes the port bindings to the virtual server.
To clone a real server, enter commands such as the following.
Virtual ADX(config)#server real rs1 10.2.3.4
Virtual ADX(config-rs-rs1)#clone-server rs2 10.6.7.8
The first command changes the CLI to the configuration level for the real server you want to copy.
The second command creates a clone of real server rs1. The clone is named "rs2" and has IP
address 10.6.7.8.
Syntax: [no] clone-server name ip-addr
•
The name variable specifies the name of the clone.
•
The ip-addr variable specifies the IP address of the clone.
NOTE
To delete a server clone, you must manually edit the startup-config file to remove the command. The
no option is not supported for this command.