The following sFlow commands allow you to configure sFlow instances via the CLI.
[no] sflow receiver-instance destination ip-address [ udp-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.
sflow receiver-instance sampling
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
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
NOTE: Under the multiple instance implementation, sFlow can be configured via the CLI or via SNMP. However, CLI-owned sFlow configurations cannot be modified via SNMP, whereas SNMP-owned instances can be disabled via the CLI using the
no sflow command.
[no] sflow receiver-instance destination
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
oobm: Use the OOBM port to reach the specified sFlow receiver.
HP_Switch (Config#) sflow 1 destination 192.168.2.3 6000 oobm
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.
show sflow agent
Displays sFlow agent information. The agent address is normally the IP address of the first VLAN configured.
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.
show sflow receiver instance destination
Displays information about the management station to which the sFlow sampling-polling data is sent.
show sflow instance destination command includes information about the management-station's destination address, receiver port, and owner, as shown below.
Example of viewing sFlow destination information
Note the following details:
Displays status information about sFlow sampling and polling.
show sflow instance sampling-polling
command displays information about sFlow sampling and polling on the switch, as shown in the example below. You can specify a list or range of ports for which to view sampling information.
Example of viewing sFlow sampling and polling information
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.
show snmpv3 user
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