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Parameter update will be done using new APIs for updating Zone level parameters. For the details, refer to FS for Granular Global Configuration Parameters
updateZoneLevelParametersupdateConfiguration&scope=zone&id=<zone_id> will accept a new parameter - blacklistedRoutes. It's going to accept list of routes separated by comma in format of x.x.x.x/x. Example: "10.10.10.0/24,172.16.1.0/24"
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