C H A P T E R 4 | Scenario 1 |
Part 2 – Changing to Flash Response Mode Balancing
Key Concepts:
•Flash Response Mode
•Associating 7190s with a site
Procedure
Now that the 7190 is configured and functioning properly it is time to modify the configuration to use Flash Response Mode balancing instead of Weighted Round Robin.
Step 1. Associate 7190s with a site.
Flash Response Mode works by sending DNS responses back to the client from a source that is as close (network wise) as possible to the address it is returning. Only the 7190s are capable of sending Flash responses.
config dns isvgroups westcoastsite
config dns isvgroups eastcoastsite
Step 2. Change the host balancing method to Flash Response Mode.
config dns zones
hostnames www
method flash
Step 3. Commit the configuration changes.
Now that the changes are completed, save a snapshot and commit the configuration. Note that now that a secondary 7190 is online these configuration changes are instantly propagated to the secondary 7190 (eastcoastsite) whenever the commit all command is executed.
save
commit all
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