The following sFlow commands allow you to configure sFlow instances via the CLI.
Syntax
[no] sflow [ receiver-instance destination ip-addressudp-port-num ]
Enables an sFlow receiver/destination. The receiver-instance number must be a 1, 2, or 3.
By default, the udp destination port number is 6343.
To disable an sFlow receiver/destination, enter no sflow .receiver-instance
Syntax
sflow receiver-instance sampling <PORT-LIST> sampling rate
Once an sFlow receiver/destination has been enabled, this command enables flow sampling for that instance. The receiver-instance number is 1, 2, or 3, and the sampling rate is the allowable non-zero skipcount for the specified port or ports.
To disable flow-sampling for the specified <PORT-LIST> repeat the above command with a sampling rate of 0.
Syntax
sflow <receiver-instance> polling <PORT-LIST> polling interval
Once an sFlow receiver/destination has been enabled, this command enables counter polling for that instance. The receiver-instance number is 1, 2, or 3, and the polling interval may be set to an allowable non-zero value to enable polling on the specified port or ports.
To disable counter-polling for the specified <PORT-LIST>, repeat the above command with a polling interval of 0.
Syntax
[no] sflow receiver-instance destination <ipv4 | ipv6>udp-port-numoobm
This command provides a configurable option for sending sFlow packets to a destination through the OOBM port on the switch. The sFlow collector collects sample packets through the OOBM port, allowing the monitoring of network traffic. Both IPv4 and IPv6 addresses are supported.
The command enables an sFlow receiver/destination. The receiver-instance number must be a 1, 2, or 3. By default, the udp destination port number is 6343.
To disable an sFlow receiver/destination, enter no sflow <receiver-instance>
oobm: Use the OOBM port to reach the specified sFlow receiver.
In earlier software releases, sFlow was configured on the switch via SNMP using a single sFlow instance. Beginning with software release K.11.34, sFlow can also be configured via the CLI for up to three distinct sFlow instances: once enabled, an sFlow receiver/destination can be independently configured for full flow-sampling and counter-polling. CLI-configured sFlow instances may be saved to the startup configuration to persist across a switch reboot.
The following sFlow commands allow you to display sFlow configuration and status via the CLI. Example of viewing sFlow destination information is an example of sflow agent information.
Syntax
show sflow agent
Displays sFlow agent information. The agent address is normally the IP address of the first VLAN configured.
The show sflow agent command displays read-only switch agent information. The version information shows the sFlow version, MIB support, and software versions; the agent address is typically the IP address of the first VLAN configured on the switch.
Syntax
show sflow receiver instance destination
Displays information about the management station to which the sFlow sampling-polling data is sent.
The show sflow command includes information about the management-station's destination address, receiver port, and owner, as shown in Example of viewing sFlow destination information.instance destination
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Destination Address remains blank unless it has been configured.
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Datagrams Sent shows the number of datagrams sent by the switch agent to the management station since the switch agent was last enabled.
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Timeout displays the number of seconds remaining before the switch agent will automatically disable sFlow (this is set by the management station and decrements with time.)
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Max Datagram Size shows the currently set value (typically a default value, but this can also be set by the management station.)
Syntax
show sflow <receiver instance> sampling-polling <PORT-LIST/range>
Displays status information about sFlow sampling and polling.
The show sflow command displays information about sFlow sampling and polling on the switch, as shown in Example of viewing sFlow sampling and polling information. You can specify a list or range of ports for which to view sampling information.instance sampling-polling<PORT-LIST>
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![[NOTE: ]](images/note.gif) |
NOTE: The sampling and polling instances (noted in parentheses) coupled to a specific receiver instance are assigned dynamically, and so the instance numbers may not always match. The key thing to note is whether sampling or polling is enabled on a port, and the sampling rates or polling intervals for the receiver instance configured on each port. |
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Syntax
show snmpv3 user
Example
Displays information about the management stations configured on VLAN 1 to access the switch
HP Switch# configure terminal (HP_Switch_name#) vlan 1 HP Switch(vlan-1)# show snmpv3 user Status and Counters - SNMPv3 Global Configuration Information User Name Auth. Protocol Privacy Protocol ----------- -------------- ----------------- initial MD5 CFB AES-128 NetworkAdmin MD5 CBC-DES