Hi
I have flexible netflow running but for routing with iwan so I haven't set it for layer 2 but when I checked that doc I posted and another it says you must have the datalink in at the very least to collect layer 2 information from the switch , what you have above looks ok but maybe set the transport port number under the exporter or maybe it already uses 2055 by default -- transport udp 2055
You will know pretty quick if its working or not
DOC
You are familiar with the Flexible NetFlow key fields as they are defined in the following commands
in the Cisco IOS Flexible NetFlow Command Reference :
◦match datalink—Datalink (layer2) fields
◦match flow—Flow identifying fields
◦match interface—Interface fields
◦match ipv4—IPv4 fields
◦match ipv6—IPv6 fields
◦match transport—Transport layer fields
◦match wireless—Wireless fields
◦match flow cts—CTS fields
Configuring Layer 2 NetFlow
You can define Layer 2 keys in Flexible NetFlow records that you can use to capture flows in Layer 2 interfaces.
SUMMARY STEPS
1. configure terminal
2. flow record name
3. match datalink {dot1q |ethertype | mac | vlan}
4. end
5. show flow record [name ]
6. copy running-config startup-config
DETAILED STEPS
| |
Command or Action |
Purpose |
| Step 1 |
configure terminal
Example:
Switch# configure terminal
|
Enters the global configuration mode.
|
| Step 2 |
flow record name
Example:
Switch(config)# flow record L2_record
Switch(config-flow-record)#
|
Enters flow record configuration mode.
|
| Step 3 |
match datalink {dot1q |ethertype | mac | vlan}
Example:
Switch(config-flow-record)# match datalink ethertype
|
Specifies the Layer 2 attribute as a key.
|
| Step 4 |
end
Example:
Switch(config-flow-record)# end
|
Returns to privileged EXEC mode.
|
| Step 5 |
show flow record [name ]
Example:
Switch# show flow record
|
(Optional) Displays information about NetFlow on an interface.
|
| Step 6 |
copy running-config startup-config
Example:
Switch# copy running-config
startup-config
|
(Optional) Saves your entries in the configuration file.
|
