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Replicating Routing Engine-Based Sampling to Multiple Flow Servers

Routing Engine-based sampling supports up to eight flow servers for both flow monitoring version 5 and version 8 configurations. The total number of flow servers is limited to eight, regardless of how many are configured for version 5 or version 8.

When you configure version 5 or version 8 sampling, the export packets are replicated to all flow servers configured to receive them. If two flow servers are configured to receive version 5 records, both flow servers will receive records for a specified flow.

Note: With Routing-Engine-based sampling, if multiple flow servers are configured with version 8 export format, all of them must use the same aggregation type (for example, all flow servers receiving version 8 export could be configured for source-destination aggregation type).

The following configuration example allows replication of export packets to two flow servers.



[edit]
forwarding-options {


sampling {


input {


family inet {
rate 1;
}


}




output {


flow-server 10.10.3.2 {
port 2055;
version 5;
source-address 192.168.164.119;
}




flow-server 172.17.20.62 {
port 2055;
version 5;
source-address 192.168.164.119;
}


}


}


}

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