topic Re: equivalent syntax for cisco's flow-export in extreme exos in ExtremeSwitching (EXOS/Switch Engine)

equivalent syntax for cisco's flow-export in extreme exos

ddpatil89 — Thu, 22 Oct 2020 13:41:42 GMT

I need to configure flow-export in exos. How to configure it?

Following is the config on cisco -

ip flow-export source Vlan1

ip flow-export version 5

ip flow-export destination 172.16.202.47 2055

ip flow-export destination 172.30.250.242 9996

ip flow-top-talkers

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Re: equivalent syntax for cisco's flow-export in extreme exos

CThompsonEXOS — Thu, 22 Oct 2020 17:59:37 GMT

Hi,

EXOS uses sflow which is described in the article below:

https://gtacknowledge.extremenetworks.com/articles/How_To/How-to-configure-sFlow

Thanks,

Chris Thompson

Re: equivalent syntax for cisco's flow-export in extreme exos

ddpatil89 — Fri, 23 Oct 2020 11:47:30 GMT

Hi Chris,

Thank you for the prompt response.

Do we have any syntax in exos for hardware based flows. Like in cisco we use following commands to enable hardware based flows.

mls aging long 64

mls aging normal 32

mls netflow interface

mls flow ip interface-full

mls nde sender version 5

mls qos

mls cef error action reset

Re: equivalent syntax for cisco's flow-export in extreme exos

CThompsonEXOS — Fri, 23 Oct 2020 19:26:22 GMT

I THINK Netflow is proprietary to Cisco(or was) so the commands/syntax may not 100% check out. I also THINK(not 100% sure) they do netflow in software. Below would be a semi common sflow example:

• Configures the sampling rate on an edge port.
• Enables sFlow on the edge port.
• Enables sFlow globally on the switch.

configure sflow collector 10.127.11.88 vr vr-mgmt
configure sflow ports 5:21 sample-rate 8192
enable sflow ports 5:21 egress
enable sflow


Here is sample output for the configuration:
SFLOW Global Configuration
Global Status: enabled
Polling interval: 20
Sampling rate: 8192
Maximum cpu sample limit: 2000
SFLOW Configured Agent IP: 0.0.0.0
Operational Agent IP: 10.127.11.88
Collectors
SFLOW Port Configuration Port Status Sample-rate Subsampling Sflow-type
Config / Actual factor Ingress/Egress
5:21 enabled 8192 / 8192 1 Disabled / Enabled
Displaying sFlow

Not sure how this lines up with Cisco but your configuration options would be these below:

configure sflow max-cpu-sample-limit  # default is 2000 samples per second

configure sflow poll-interval  # default is 20 seconds

configure sflow ports sample-rate  # The default number is 8192, unless modified by the configure sflow sample-rate command below.

configure sflow sample-rate # The default number is 8192, unless modified by the configure sflow sample-rate command.

Thanks,

Chris Thompson