====== Netflow configuration for Cisco ASR ======


Cisco ASR stands for Aggregation Services Router, it is used as an Edge router in many ISP and large enterprise networks.   The ASR 9000 is also used as a Core router in many large ISPs.  

The following is a useful configuration IPFIX configuration template. We recommend IPFIX.

The IP addresses are 
  * ''103.240.219.2''  is the IP Address of the Netflow Collector
  * ''76.114.13.26'' is the IP Address of the ASR 

===== Config =====


<code bash>


flow exporter my-exp
  destination ipv4-address 103.240.219.2
  source ipv4-address 76.114.13.26
  export-protocol ipfix
  template data timeout 30
  template data refresh 30
  transport udp 2055
$
flow record my-rec
  match interface output
  match interface input
  match ip protocol
  match ip cos
  match ipv4 destination address
  match ipv4 source address
  match transport source-port
  match transport destination-port
  collect counter bytes
  collect counter packets
  collect ipv4 destination address-mask
  collect ipv4 source address-mask
  collect routing next-hop-address ipv4
  collect routing bgp as-number source
  collect routing bgp as-number destination
  collect timestamp sys-uptime last
  collect timestamp sys-uptime first
  collect transport tcp flag
$
flow monitor my-monitor
  cache entries 4096
  cache timeout active 60
  cache timeout inactive 15
  record my-rec
  exporter my-exp
$
sampler my-sampler
  mode random 1 out-of 1000
$

interface intfgroup1
  ip flow monitor my-monitor sampler my-sampler unicast input
  ip flow monitor my-monitor sampler my-sampler unicast output

</code>