Black Box LGB6026A, Management Manual

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F
LOW
S
AMPLING
C
OMMANDS
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 56: sFlow Commands
Command Function Mode
sflow destination Configures the IP address and UDP port used by the IC
Collector
sflow max-datagram-size Configures the maximum size of the sFlow datagram IC
payload
sflow max-header-size Configures the maximum size of the sFlow datagram IC
header
sflow owner Configures the name of the receiver IC
sflow sample Configures the packet sampling rate IC
sflow source Enables sFlow on the source ports to be monitored IC
sflow timeout Configures the length of time samples are sent to the IC
Collector before resetting all sFlow port parameters
show sflow Shows the global and interface settings for the sFlow PE
process
sflow destination
This command configures the IP address and UDP port used by the
Collector. Use the
no form to restore the default settings.
S
YNTAX
sflow destination { ipv4 ipv4-address | ipv6 ipv6-address }
[ destination-udp-port ]
no sflow destination
ipv4-address - IPv4 address of the sFlow Collector. Valid IPv4
addresses consist of four decimal numbers, 0 to 255, separated by
periods.
ipv6-address - IPv6 address of the sFlow Collector. A full IPv6
address including the network prefix and host address bits. An IPv6
address consists of 8 colon-separated 16-bit hexadecimal values.