To configure sFlow v5 on Cisco ASR 9000 platform please apply following configuration:
flow exporter-map SFLOW-EXP-MAP version sflow v5 ! transport udp 6343 source Loopback0 destination [FastNetMon IP] ! flow monitor-map SFLOW-MON-MAP record sflow exporter SFLOW-EXP-MAP ! sampler-map SFLOW-SAMP-MAP random 1 out-of 1000
Then enable it for all upstream facing interfaces:
interface TenGigE0/X/X/X flow datalinkframesection monitor SFLOW-MON-MAP sampler SFLOW-SAMP-MAP ingress
Then check that configuration was applied correctly:
#sh flow monitor-map SFLOW-MON-MAP Flow Monitor Map : SFLOW-MON-MAP ------------------------------------------------- Id: 4 RecordMapName: sflow (1 labels) ExportMapName: SFLOW-EXP-MAP CacheAgingMode: Normal CacheMaxEntries: 65535 CacheActiveTout: 1800 seconds CacheInactiveTout: 15 seconds CacheUpdateTout: N/A CacheRateLimit: 2000 HwCacheExists: False HwCacheInactTout: 50 sFlow options: Option: Max sample header
Then check that sFlow 5 frames are being exported correctly:
show flow exporter SFLOW-EXP-MAP location 0/0/CPU0
Flow Exporter: SFLOW-EXP-MAP
Export Protocol: sFlow v5
Flow Exporter memory usage: 5265224
Used by flow monitors: SFLOW-MON-MAP
Status: Normal
Transport: UDP
Destination: [FastNetMon IP] (6343) VRF default
Source: [Agent IP] (64232)
Flows exported: 158663104 (19446652344 bytes)
Flows dropped: 0 (0 bytes)
Packets exported: 14500603 (19446652344 bytes)
Packets dropped: 0 (0 bytes)
Total export over last interval of:
1 hour: 135190 pkts
181446820 bytes
1492583 flows
1 minute: 2019 pkts
2708076 bytes
22345 flows
1 second: 0 pkts
0 bytes
0 flows