Configure the ratelimit.xml configuration file for the HSFabric rate limit policy on the local host. The configuration template is as follows:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<ratelimit>
	<current-domain>0755</current-domain><!-- city1 Name of zone to which the local domain data source belongs -->
	<default-bandwidth>5120</default-bandwidth><!-- The default data volume limit is 50 MB -->
	<domain-list>
		<domain>
			<domainName>0769</domainName><!--Name of zone to which the target domain data source belongs -->
			<bandwidth>102400</bandwidth><!-- The data volume (in KB) sent from the current domain (for exampel, city1) to the target domain (for example, city2) is 100 /MB -->
			<cluster-list>
	<hsfabric><!-- One HSFabric Cluster -->
					<clusterName>hsfabric01</clusterName><!-- Cluster description -->
					<hsfabric-node>
						<hsfabricHostPort>10.10.10.10:29900</hsfabricHostPort><!-- Host IP address of the HSFabric instance -->
					</hsfabric-node>
				</hsfabric>
			</cluster-list>
		</domain>
		<domain>
			<domainName>0770</domainName>
			<bandwidth>20480</bandwidth><!-- The data volume (in KB) sent from the current domain (for exampel, city1) to the target domain (for example, city2) is 20 MB -->
			<cluster-list>
				<hsfabric><!-- One HSFabric Cluster -->
					<clusterName>hsfabric02</clusterName>
					<hsfabric-node>
						<hsfabricHostPort>10.10.10.10:29900</hsfabricHostPort>
					</hsfabric-node>
				</hsfabric>
			</cluster-list>
		</domain>
	</domain-list>
</ratelimit>

**Table 1** Parameters in the **ratelimit.xml** file
Parameter	Description	Example Value
current-domain	Name of zone to which the local domain data source belongs	0755
default-bandwidth	Default data volume limit, in KB	5120
domainName	Name of zone to which the target domain data source belongs	0769
bandwidth	Data volume from the current zone (for example, city1) to the target zone (for example, city2), in KB	102400
clusterName	Description of the cluster in the target domain	hsfabric01
hsfabricHostPort	Service IP address and port number of HSFabric in the target domain	10.10.10.10:29900

Log in to Manager where the target domain cluster locates as an administrator who can access the HetuEngine WebUI.
Choose Cluster > Services > HetuEngine. On the displayed page, click Configurations and then All Configurations.
Choose HSFabric(role) > Rate Limit and click Upload File to upload the ratelimit.xml file prepared in 1.
Click Instance, select the HSFabric instance, choose More > Restart Instance, and enter the password to restart the HSFabric instance.

HetuEngine Cross-Domain Rate Limit Function