Cisco Catalyst 4948E Ethernet Switch(NetFlow Lite) Configuration

You can perform Cisco Catalyst 4948E Ethernet Switch(NetFlow Lite) configuration using the following steps:

config t
flow record NfliteRecord
collect counter bytes long
collect counter packets long collect flow sampler
collect interface input
collect timestamp sys-uptime first
collect timestamp sys-uptime last
collect transport tcp flags ack
collect transport tcp flags fin
collect transport tcp flags rst
match ipv4 protocol
match ipv4 destination address
match ipv4 source address
match ipv4 tos
match transport destination-port
match transport source-port

flow exporter NfliteExporter
destination {NETFLOW_SERVER_IP}
export-protocol netflow-v9
option interface-table
option exporter-stats
option sampler-table
source loopback {LOOPBACK_INTERFACE_NAME}
template data timeout 60
transport udp {NETFLOW_SERVER_LISTENER_PORT}

flow monitor NfliteMonitor
record NfliteRecord
exporter NfliteExporter
cache timeout active 60
cache timeout inactive 15
cache type normal
statistics packet protocol

sampler NfliteSampler
mode random 1 out-of 32

Enter global configuration mode on the router or MSFC, and issue the following commands for each interface on which you want to enable flow:

interface {INTERFACE_NAME}
ip flow monitor NfliteMonitor sampler NfliteSampler input
exit