No. Cisco doesn't support NetFlow on the following devices: Cisco 2900 Cisco 3500 Cisco 3750  It is possible to configure NetFlow export, but no flows are send to the...

NetFlow is most likely available in any devices on the network. Device

The commands you need for layer2-switched traffic: ip flow ingress layer2-switched vlan <vlanlist> ip flow export layer2-switched vlan <vlanlist> However, from the IOS guide: A...

You will not be able to change the flowmask after you configure NAT. You might be hitting the bug CSCsb41562 (fixed on 12.2(18)SXF) Actually it's not a bug I think it's a feature, and I'm not...

Cat6500 uses MSFC only for the first packet, and the last packets are switched using PFC (CEF, dCEF). To correct configure Netflow export on the Cat6500, you must enable Netflow on the MSFC and on...

Output interfaces are "Null" in the following cases: The packets are blocked by an ACL. The packets are process switcheded. This could be because the feature is not supported ...

By default, the flow keys are: Source IP address, destination IP address, source port, destination port, layer 3 protocol type, ToS byte (DSCP) and input interface. On Cisco Catalyst we speak of the...

Probably, Vlan2 is not layer3 interface or you haven't enabled collection of layer2 statistics. Try the command "show ip interface brief" to display brief summary of IP status and...

Please, visit the following web page  to see a brief guide to setting up the NetFlow data export (NDE) on a Cisco devices.

Run the command: show ip interface brief | exclude unassigned to list all L3 interfaces that have assigned IP address. Check if you enabled ip route-cache cef or ip route-cache flow...

We suggest configure long aging time on 300 sec and normal aging time to 60 sec. Aging time is critical for network anomalies detection. in case that you are using netflow only for billing...

Cisco 3620 router supports Netflow 9 export format. You can find list of netflow enabled Cisco devices on the feature navigator site:

The "ip route-cache flow" can be used only under the main interface, while the "ip flow ingress" was an enhancement to be used under subinterfaces. The NetFlow Subinterface...

The MLS aging time (default 300 seconds) applies to all NetFlow table entries. You can configure the normal aging time in the range of 32 to 4092 seconds. Flows can age as much as 4 seconds sooner...

NetFlow VRF Export: - Allow the export of flow records within a VRF. - Valid for both SCTP* and UDP export. Router(config)# ip flow-export destination 10.1.1.2 2000 vrf testvrf...

You need to purchase and install a NetFlow services WS-4531 card to support NetFlow on 4500 series. You cannot enable NetFlow without this card.

No, PFC3A mode does not support NetFlow bridged IP traffic. Netflow for bridged traffic requires Release 12.2(18)SXE or later. This example shows how to enable NetFlow for ingress-bridged IP...

No statistics are available for flows that are switched when the NetFlow table is full. If the NetFlow table utilization exceeds the recommended utilization levels, there is an increased probability...

Following messages are seen while disabling/enabling QoS globally: Router#config term Enter configuration commands, one per line. End with CNTL/Z. Router(config)#no mls...

The ICAM is used to handle hash collisions in the netflow table. It essentially indicates that 2 unique flows hashed to the same key in the hardware, so the netflow TCAM stores the index to the flow...