LevelOne FGL-2870 - Manual (Page 468)

Command Line Interface
4-102
4
Flow Sampling Commands
Flow sampling (sFlow) can be used with a remote sFlow Collector to provide an
accurate, detailed and real-time overview of the types and levels of traffic present on
the network. The sFlow Agent samples 1 out of n packets from all data traversing the
switch, re-encapsulates the samples as sFlow datagrams and transmits them to the
sFlow Collector. This sampling occurs at the internal hardware level where all traffic
is seen, whereas traditional probes only have a partial view of traffic as it is sampled
at the monitored interface. Moreover, the processor and memory load imposed by
the sFlow agent is minimal since local analysis does not take place
Table 4-25 show snmp user - display description
Field Description
EngineId String identifying the engine ID.
User Name Name of user connecting to the SNMP agent.
Authentication Protocol The authentication protocol used with SNMPv3.
Privacy Protocol The privacy protocol used with SNMPv3.
Storage Type The storage type for this entry.
Row Status The row status of this entry.
SNMP remote user A user associated with an SNMP engine on a remote device.
Table 4-26 sFlow Commands
Command Function Mode Page
sflow Enables sFlow globally for the switch GC 4-103
sflow source *
* Due to the switch’s hardware design, these commands can only be enabled for specific port groups (1-8, 9-16,
17-24, 25-32, 33-48). However, sampling for each of the Gigabit combination ports (25-28/49-52) can be controlled
individually.
Enables sFlow on the source ports to be monitored IC 4-103
sflow sample * Configures the packet sampling rate IC 4-104
sflow polling-interval Configures the interval at which counters are added to the
sample datagram
IC 4-104
sflow owner Configures the name of the receiver IC 4-105
sflow timeout Configures the length of time samples are sent to the
Collector before resetting all sFlow port parameters
IC 4-105
sflow destination Configures the IP address and UDP port used by the Collector IC 4-106
sflow max-header-size Configures the maximum size of the sFlow datagram header IC 4-106
sflow max-datagram-size Configures the maximum size of the sFlow datagram payload IC 4-107
show sflow Shows the global and interface settings for the sFlow process PE 4-107