NetFlow and sFLow with Extreme

[horsebox1977]

Hi,

I am trying to get NetFlow working with an Extreme switch -

"netflow is not detected on the selected interface"

It does not recoginse the fact that sFlow is enabled on the switch.

Here is the config

configure sflow sample-rate 128
configure sflow max-cpu-sample-limit 2000
configure sflow poll-interval 30
enable sflow
configure sflow collector "NetFlowServer_IPAddresss" port 2055 vr "VR-Mgmt"
configure sflow ports 1:2 sample-rate 128
enable sflow ports all

SFLOW Global Configuration
Global Status: enabled
Polling interval: 30
Sampling rate: 128
Maximum cpu sample limit: 2000
SFLOW Configured Agent IP: "SwitchIPAddress" Operational Agent IP: "SwitchIPAddress"
Collectors
Collector IP "NetFlowServer_IPAddresss" , Port 2055, VR "VR-Mgmt"

SFLOW Port Configuration
Port Status Sample-rate Subsampling
Config / Actual factor
1:2 enabled 128 / 128 1



There is no firewall or any device blocking traffic betweek these devices and both are on the save vLAN-

Any thoughts?

 

[ISComms]

What program are you using ?
I use SFlow Trend and it uses port 6343

 

[horsebox1977]

I was using Orion's net flow analyser - but that does not support Sflow.
I might have a look at sflow Trend.

 

[ExtremeTek]

horsebox1977 - Unfortunately, Cisco's Netflow standard and sFlow are two different animals. Both are used for statistical analysis of traffic flows. However, Netflow is more L3 specific, whereas sFlow can get you both L2 and L3 statistics. sFlow was created as a standard interface for gathering statistical flow data. Netflow ultimately became and RFC standard and some other vendors besides Cisco do support Netflow. Exteme only supports standard sFlow.

You cannot read sFlow data using a Netflow collector and vice versa. You'll need to use sFlow Trend or some other sFlow collector in order to read data from the Extreme Switch.

- ExtremeTek