Black Box LGB6026A, Management Manual

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C
HAPTER
5 | Interface Configuration
Sampling Traffic Flows
As the Collector receives streams from the various sFlow agents (other
switches or routers) throughout the network, a timely, network-wide
picture of utilization and traffic flows is created. Analysis of the sFlow
stream(s) can reveal trends and information that can be leveraged in the
following ways:
◆
Detecting, diagnosing, and fixing network problems
◆
Real-time congestion management
◆
Understanding application mix (P2P, Web, DNS, etc.) and changes
◆
Identification and tracing of unauthorized network activity
◆
Usage accounting
◆
Trending and capacity planning
C
ONFIGURING S
F
LOW
P
ARAMETERS
Use the Interface > sFlow page to set the source and destination
parameters for the sampled data, payload parameters, and sampling
interval.
CLI R
EFERENCES
◆
"Flow Sampling Commands" on page 699
P
ARAMETERS
These parameters are displayed in the web interface:
◆
Port – Choose the port to configure. (Range: 1-26/50; Default: 1)
◆
Status – Enables sFlow on the selected port.
◆
Receiver Owner
1
– The name of the receiver. (Range: 1-256
characters; Default: None)
◆
Receiver IP Address
1
– IP address of the sFlow Collector.
◆
Receiver Port 1 – The UDP port on which the sFlow Collector is
listening for sFlow streams. (Range: 0-65534; Default: 6343)
◆
Timeout – The time that the sFlow process will continuously send
samples to the Collector before resetting all sFlow port parameters.
(Range: 0-10000000 seconds, where 0 indicates no time out)
The sFlow parameters affected by this command include the sampling
interval, the receiver’s name, address and UDP port, the time out,
maximum header size, and maximum datagram size.
◆
Max Header Size – Maximum size of the sFlow datagram header.
(Range: 64-256 bytes; Default: 128 bytes)
1. Sampling must be disabled by setting the time out to 0 before these fields can be
configured.