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Replicating Version 9 Flow Aggregation to Multiple Flow Servers

The export packets generated for a template are replicated to all the flow servers that are configured to receive information for that template. The maximum number of servers supported is eight.

This also implies that periodic updates required by version 9 (RFC 3954) are sent to each configured collector. The following updates are sent periodically as part of this requirement:

Options data
Template definition

The refresh period for options data and template definition is configured on a per-template basis at the [edit services flow-monitoring] hierarchy level.

The following configuration example allows replication of version 9 export packets to two flow servers.



forwarding-options {


sampling {


input {


family inet {
rate 1;
}


}




output {


cflowd 10.10.3.2 {
port 2055;


version9 {


template {
ipv4;
}


}


}




cflowd 172.17.20.62 {
port 2055;


version9 {


template {
ipv4;
}


}


}


flow-inactive-timeout 30;
flow-active-timeout 60;


interface sp-4/0/0 {
source-address 10.10.3.4;
}


}


}


}

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