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M4100-50G-POE+ sFlow with PRTG. Has anyone done this?
M4100-50G-POE+ sFlow with PRTG. Has anyone done this?
M4100-50G-POE+ ProSafe 48-port Gigabit L2+ Intelligent Edge PoE Managed Switch, 10.0.1.16, B1.0.0.9
When I setup the M4100 to have this configuration.
sFlow Receiver Configuration
Receiver Receiver Receiver No Maximum Receiver Receiver Datagram
Index Owner Timeout Timeout Datagram Address Port Version
Size
1 PRTG Netflow 31525904 False 1400 172.16.104.61 6343 5
My PRTG is at IP 172.16.104.61. I setup a device with the IP of the M4100, then setup a device/sensor with sFlow V5. Then setup an interface to use the receiver
sFlow Interface Configuration
Interface Poller Sampler
Receiver Poller Receiver Sampling Maximum
Index Interval Index Rate Header Size
0/1 0 0 0 0 128
.
0/8 1 3000 1 1024 128
Then PRTG sensor status is unknown and the message with no data.
Sensor Staus Message
sFlow V5 1 Unknown No data since 2/27/2017 11:24:57 AM
And this is after 1 hour
How can this be made to work? What did I miss?
--
sflow ip & interface config
(M4100-50G-POE+) #show sflow agent
sFlow Version.................................. 1.3;Netgear Inc.;10.0.1.16
IP Address..................................... 172.16.121.5
172.16.121.5 is the address of the switch (Netgear terms= agent)
#show ip interface brief Interface
State IP Address IP Mask Method
---------- ----- --------------- --------------- -------
blank fields
(M4100-50G-POE+) #show sflow source-interface
sFlow Client Source Interface.................. (not configured)
---
What are the commands to configure the sflow interface & source-interface?
tried this configure command
sflow source-interface 0/49
came back with
A valid routing interface must be specified.
---
can't seem to find the right configure commands in the CLI manual
9 Replies
Hi JohnG101,
Welcome to the NETGEAR Community! 🙂
Have you tried the steps indicated from page 297 of the link below?
https://www.downloads.netgear.com/files/GDC/M4100/M4100_SWA_v10-0-1_26Mar2015.pdf
Have a lovely day,
RennaD
NETGEAR TeamThanks for the info.
I have followed the steps exactly (with my collector IP & index #)
Still no joy of having any data show up in PRTG V23.4.90.1299
The Receiver timeout counts down to zero and then the configuration is gone from the Receiver Configuration.
What is the sFlow version in the Netgear M4100 series switches?
What is the PRTG sFlow version?
Are these 2 sFlow versions compatible?
Any other suggestions?
Hi nsskyetech,
The sFlow agent version on NETGEAR managed switches is v1.3 while I believe PRTG only supports sFlow version 5.
Have a lovely day,
RennaD
NETGEAR Team
Thank you schumaku for pointing that out.
nsskyetech I reviewed your configuration and what appears to be lacking is the sFlow Source Interface. By default it is VLAN 1, but for whatever reason this has become non routing. You will need to create either a VLAN routing interface or physical routing interface for SFlow.
Below is where you can configure this in the web UI:
for VLAN routing interface: Routing - VLAN - VLAN routing
for Physical routing interface: Routing - IP - Advanced - IP Configuration (to enable Routing mode) then IP Interface ConfigurationOnce this has been configured select the routing interface under Monitoring - sFlow - Basic - sFlow Agent Information - Source Interface or run the configure command "sflow source-interface <slot/port or vlan>"
Also, make sure that the receiver and source interface are able to communicate with each other. You can do a ping test from PRTG to the switch source interface to check this.
Lastly, I noticed that the firmware is very old, 10.0.1.16. I suggest to update the firmware to the latest which is version 10.0.2.35. Don't forget to backup the config first.
Have a lovely day,
RennaD
NETGEAR Team(M4100-50G-POE+) #show sflow agent
sFlow Version.................................. 1.3;Netgear Inc.;10.0.1.16
IP Address..................................... 172.16.121.5 (this is the IP address of the switch, which should be the agent address)
(M4100-50G-POE+) #show ip interface brief
Interface State IP Address IP Mask Method
---------- ----- --------------- --------------- -------
(empty) (example show using vlan id) (which vlan is should be used - if any) (does this need to be set?) (if it does, how to set with CLI?)
(M4100-50G-POE+) #show vlan
Maximum VLAN Entries........................... 1024
VLAN Entries Currently in Use.................. 2
VLAN ID VLAN Name VLAN Type
------- -------------------------------- -------------------
1 default Default
2 Auto VoIP AUTO VoIP
Hi nsskyetech,
The "#show ip interface brief" returns empty because there is no routing interface configured. Routing interface is needed to configure the sFlow source-interface. You can either use a VLAN routing interface or physical routing interface.
Please see below commands on how to configure VLAN routing interface in CLI:
# vlan database
(vlan)# vlan routing 1
(vlan)# exit#config
(config)#interface vlan 1
(Interface-vlan 1)#ip address 172.16.121.55 255.255.255.0
(Interface-vlan 1)#exit
To use this VLAN routing interface as the sFlow Agent Source Interface, please see command below:
#config
(config)#sflow source-interface vlan 1
Please see below links for additional information:Enable IP routing:
Page59 of https://www.downloads.netgear.com/files/GDC/M4100/M4100_SWA_v10-0-1_26Mar2015.pdfEnable VLAN routing:
Page72 of https://www.downloads.netgear.com/files/GDC/M4100/M4100_SWA_v10-0-1_26Mar2015.pdfConfigure sFlow
Page296 of https://www.downloads.netgear.com/files/GDC/M4100/M4100_SWA_v10-0-1_26Mar2015.pdfHave a lovely day,
RennaD
NETGEAR Teamenabled vlan routing
next to set the vlan ip interface
(M4100-50G-POE+) #config
(M4100-50G-POE+) (Config)#interface vlan 1
(M4100-50G-POE+) (Interface vlan 1)#ip address 172.16.121.55 255.255.255.0
vlan 1
Subnet conflict between specified IP Address and current configuration.
All routing interfaces, service ports and network ports must be configured on different subnets. (M4100-50G-POE+)- can't seem to use my subnet, so used another subnet/ip that is not on my network
(Interface vlan 1)#ip address 192.168.121.55 255.255.255.0
(M4100-50G-POE+) (Interface vlan 1)#exit
(M4100-50G-POE+) (Config)#sflow source-interface vlan 1
(M4100-50G-POE+) (Config)#exit
(M4100-50G-POE+) #show ip interface brief
Interface State IP Address IP Mask Method---------- ----- --------------- --------------- -------
vlan 1 Up 192.168.121.55 255.255.255.0 ManualGreat but this doesn't seem to be proper.
removed the vlan interface ip address.
---
set the receiver configuration (to the PRTG IP) in the web gui & the sflow interface configuration
NOW PRTG can get sflow information from the M4100 switch
- I think it was just the 'vlan routing' being enabled.
Thanks for all you help
Just a pain that the docs don't have this info clarified
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