M4100-50G-POE+ sFlow

Question

Hello All;M4100-50G-POE+ ProSafe 48-port Gigabit L2+ Intelligent Edge PoE Managed Switch, 10.0.1.16, B1.0.0.9Trying to setup sFlow with PRTG.&nbsp; Has any one don this.When I setup the M4100 to have this configuration.sFlow Receiver Configuration&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; &nbsp;Receiver&nbsp; Receiver&nbsp;&nbsp; &nbsp;Receiver &nbsp;&nbsp;&nbsp; &nbsp;No&nbsp;&nbsp; &nbsp;Maximum&nbsp; Receiver &nbsp;&nbsp;&nbsp; &nbsp;Receiver Datagram&nbsp;&nbsp; &nbsp;Index&nbsp;&nbsp; &nbsp;&nbsp; Owner&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;Timeout&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;Timeout&nbsp;&nbsp; &nbsp;Datagram Address &nbsp;&nbsp;&nbsp; &nbsp;Port&nbsp;&nbsp; &nbsp; Version&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;Size&nbsp;&nbsp; &nbsp;1&nbsp;&nbsp; &nbsp;&nbsp; PRTG Netflow&nbsp;&nbsp; &nbsp;31525904&nbsp;&nbsp; &nbsp;False&nbsp;&nbsp; &nbsp;1400&nbsp;&nbsp; &nbsp; 172.16.104.61&nbsp;&nbsp; &nbsp;6343&nbsp;&nbsp; &nbsp; 5My PRTG is at IP 172.16.104.61.&nbsp; I setup a device with the IP of the M4100, then setup a device with sFlow V5.&nbsp; Then setup an interface to use the receiversFlow Interface Configuration&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; &nbsp;Interface&nbsp;&nbsp; &nbsp;Poller&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp; Sampler&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;Receiver&nbsp;&nbsp; &nbsp;Poller&nbsp;&nbsp; &nbsp; Receiver Sampling&nbsp; Maximum&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;Index&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;Interval Index&nbsp;&nbsp;&nbsp; Rate&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Header Size&nbsp;0/1&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;0&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;0&nbsp;&nbsp; &nbsp; 0&nbsp;&nbsp; &nbsp;&nbsp; 0&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; 128.0/8&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;1&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;3000&nbsp;&nbsp; &nbsp; 1&nbsp;&nbsp; &nbsp;&nbsp; 1024&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp; 128Then PRTG sensor status is unknown and the message with no data.Sensor&nbsp;&nbsp; &nbsp;&nbsp;&nbsp; &nbsp;Staus&nbsp;&nbsp; &nbsp;MessagesFlow V5 1&nbsp;&nbsp; &nbsp;Unknown&nbsp;&nbsp; &nbsp;No data since 2/27/2017 11:24:57 AMAnd this is after 1 hourHow can this be made to work?&nbsp; What did I miss?&nbsp;&nbsp;

DanielZhang · Answer

Hi Nsskyetech,
Welcome to NETGEAR community！
&nbsp;
Maybe some configuration missing in your topology.
You can find the configuration guide form the user manual as following link:
M4100 user manual
&nbsp;
I also have a sFlow configuration on M4100 as below:Please check and compare with yours.
(M4100-26G) #show sflow agent  sFlow Version.................................. 1.3;Netgear Inc.;10.0.2.13 IP Address..................................... 100.1.1.99 --&gt;&gt;this IP address used for agent .   (M4100-26G) #show ip interface brief  Interface State IP Address IP Mask Method ---------- ----- --------------- --------------- ------- vlan 1 Up 100.1.1.99 255.255.255.0 Manual ---&gt;&gt;this VLAN interface used for sFlow agent.  (M4100-26G) #show sflow source-interface  sFlow Client Source Interface.................. vlan 1 sFlow Client Source IPv4 Address............... 100.1.1.99 [Up] ---&gt;&gt;this Source interface used for sFlow agent.(make sure the source interface could communicate with receiver)  (M4100-26G) #
(M4100-26G) #show sflow receivers  Rcvr Owner Timeout Max Dgram Port IP Address Indx String Size ---- -------------------------------- ---------- --------- ----- --------------- 1 0 1400 6343 0.0.0.0 2 0 1400 6343 0.0.0.0 3 0 1400 6343 0.0.0.0 4 0 1400 6343 0.0.0.0 5 0 1400 6343 0.0.0.0 6 0 1400 6343 0.0.0.0 7 0 1400 6343 0.0.0.0 8 100.1.1.154 No Timeout 1400 6343 100.1.1.154 ---&gt;&gt;this IP address used for receiver #8 just like your PRTG. (M4100-26G) #show sflow samplers   Sampler Receiver Packet Max Header  Data Source Index Sampling Rate Size  ----------- ------- ------------- ----------  0/1 8 1024 128  0/3 8 1024 128 ---&gt;assign sample with receiver's index #8 on the ports which you want to monitor. 0/4 8 1024 128  0/5 8 1024 128  0/6 8 1024 128  0/7 8 1024 128  0/8 8 1024 128 
&nbsp;
&nbsp;
You can find more useful information from the user manual.
It will help you setup sFlow
&nbsp;

&nbsp;
May the solution help you.

nsskyetech · Answer

Thank you for the Info.&nbsp;&nbsp;I do not have a vlan on this switch, so should the 'show ip interface brief' display anything?&nbsp;I thin it should and ith should have the IP address of the switch, right?&nbsp;(M4100-50G-POE+) #(M4100-50G-POE+) #show ip interface briefInterface&nbsp;&nbsp;&nbsp; State&nbsp; IP Address&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; IP Mask&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Method----------&nbsp;&nbsp; -----&nbsp; --------------- --------------- -------&nbsp;Also the source-interface is blank.&nbsp; I see no command either in the CLI reference or the Web interface to set this.&nbsp; How can this be set?(M4100-50G-POE+) #show sflow source-interface&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;sFlow Client Source Interface.................. (not configured)

DanielZhang · Answer

Hi nsskyetech,
Yes.
We need a IP address to run this function between agent and receiver.
&nbsp;
&nbsp;
We need to setup a VLAN or physical routing interface with &nbsp;IP address for sFlow.
So please check the connection between M4100 and&nbsp;PRTG.
(such as:
1.Ping M4100 from PRTG. (Do next step if Ping is OK.)
2.Capture packets on PRTG network adapter filter with the IP address which used for M4100.(Do next step if sFlow packets received on PRTG)
3.Check PRTG software configuration.(please check software manual of PRTG)
)
&nbsp;
&nbsp;
&nbsp;
Please backup the configuration file on M4100 before the next operation.
1.Save configuration.
2.Upload configuration to PC or MAC.
&nbsp;
You can also upgrade M4100 to 10.0.2.x and then do a factory reset before deploy sFlow configuration.
It will make a VLAN interface that used for management interface also work with sFlow.

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