![]() The memory used with the cache size of default 64k entries for ipv4 & MPLS is about 8MB & for ipv6 is about 11MB. Total memory used can be verified by checking the process memory util of " NFSVR" Show flow monitor FM cache internal location 0/0/CPU0 The memory used can be monitored via this command: The ‘nfsvr’ process running on the linecard, manages the netflow cache. NetFlow Cache is a Section of memory that stores flow entries before they are exported to external collector. In IOS-XR platforms, it is the LC processor memory that holds the netflow cache. ![]() Netflow Cache size, maintenance and memory Ø Trident: 100kpps/LC (total, that is in+out combined) Typhoon: 200kpps/LC Ø 1M records per LC (default cache size is 64k) Ø 50K Flows per sec export per LC Ø Sample intervals from 1:1 to 1:64k ! these 2 define the exports of the sample map and interface table to theflow collector for sync'ing indexes ! cache timeouts define how frequently we export what, max of 1M per LC On the interface you want to enable netflow on, you pull in the monitor map and the sampler map. The Flow monitor MAP pulls in the Exporter map The basic configuration for netflow consists of an It provides a basic configuration how to set up netflow and what the parameters are for scale and how netflow is implemented in the ASR9000/XR Basic configuration for netflow This document decribes the ASR9000 netflow architecture. Netflow Cache size, maintenance and memory.
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