Enabling And Disabling Sflow On An Interface; Enabling Sflow Max-Header Size Extended - Dell Force10 Z9000 Configuration Manual

Enabling and Disabling sFlow on an Interface

By default, sFlow is disabled on all interfaces.
This CLI is supported on physical ports and link aggregation group (LAG) ports.
To enable sFlow on a specific interface, use the following command.
• Enable sFlow on an interface.
INTERFACE mode
[no] sflow ingress-enable
To disable sFlow on an interface, use the no version of this command.

Enabling sFlow Max-Header Size Extended

To configure the maximum header size of a packet to 256 bytes, use the following commands:
• Set the maximum header size of a packet.
CONFIGURATION mode
INTERFACE mode
sflow max-header-size extended
By default, the maximum header size of a packet is 128 bytes. When sflow max-header-size extended is enabled, 256
bytes are copied. These bytes are useful for VxLAN, NvGRE, IPv4, and IPv6 tunneled packets.
NOTE: Interface mode configuration takes priority.
• To reset the maximum header size of a packet, use the following command
[no] sflow max-header-size extended
• View the maximum header size of a packet.
show running-config sflow
Example of the show sflow command when the sflow max-header-size extended is configured globally
Dell(conf-if-te-1/10)#show sflow
sFlow services are enabled
Egress Management Interface sFlow services are disabled
Global default sampling rate: 32768
Global default counter polling interval: 86400
Global default extended maximum header size: 256 bytes
Global extended information enabled: none
1 collectors configured
Collector IP addr: 100.1.1.12, Agent IP addr: 100.1.1.1, UDP port: 6343 VRF: Default
0 UDP packets exported
0 UDP packets dropped
0 sFlow samples collected
Example of viewing the sflow max-header-size extended on an Interface Mode
Dell#show sflow interface tengigabitethernet 1/1
Te 1/1
sFlow type
Configured sampling rate
Actual sampling rate
Counter polling interval
Extended max header size
Samples rcvd from h/w
682
sFlow
:Ingress
:16384
:16384
:20
:256
:0