Dell PowerEdge M520 Dell PowerConnect M6220/M6348/M8024 Switches Configuration - Page 65

CLI Examples

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Counter Sampling The primary objective of Counter Sampling is to efficiently, periodically export counters associated with Data Sources. A maximum Sampling Interval is assigned to each sFlow instance associated with a Data Source. Counter Sampling is accomplished as follows: • sFlow Agents keep a list of counter sources being sampled. • When a Packet Flow Sample is generated the sFlow Agent examines the list and adds counters to the sample datagram, least recently sampled first. Counters are only added to the datagram if the sources are within a short period, 5 seconds say, of failing to meet the required Sampling Interval. • Periodically, say every second, the sFlow Agent examines the list of counter sources and sends any counters that must be sent to meet the sampling interval requirement. The set of counters is a fixed set. CLI Examples The following are examples of the commands used for sFlow. Example #1: Configure destination IP address and maxdatagram size for an sFlow receiver index console(config)#sflow 1 destination 30.30.30.1 560 Example #2: Configure sFlow on an Ethernet interface range with a polling interval of 200 seconds console(config)#sflow 1 polling ethernet 1/g1-1/g10 200 Example #3: Configure sFlow on an Ethernet interface with a polling interval of 400 seconds console(config-if-1/g15)#sflow 1 polling 400 Example #4: Show the sFlow configuration for receiver index 1 console#show sflow 1 destination Receiver Index 1 Owner String site77 Time out 1529 IP Address 30.30.30.1 Address Type 1 Port 560 Datagram Version 5 Maximum Datagram Size 500 Switching Configuration 65

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Switching Configuration
65
Counter Sampling
The primary objective of Counter Sampling is to efficiently, periodically export counters associated with
Data Sources. A maximum Sampling Interval is assigned to each sFlow instance associated with a Data
Source.
Counter Sampling is accomplished as follows:
•
sFlow Agents keep a list of counter sources being sampled.
•
When a Packet Flow Sample is generated the sFlow Agent examines the list and adds counters to the
sample datagram, least recently sampled first. Counters are only added to the datagram if the sources
are within a short period, 5 seconds say, of failing to meet the required Sampling Interval.
•
Periodically, say every second, the sFlow Agent examines the list of counter sources and sends any
counters that must be sent to meet the sampling interval requirement.
The set of counters is a fixed set.
CLI Examples
The following are examples of the commands used for sFlow.
Example #1: Configure destination IP address and maxdatagram size for an sFlow receiver index
console(config)#sflow 1 destination 30.30.30.1 560
Example #2: Configure sFlow on an Ethernet interface range with a polling interval of 200 seconds
console(config)#sflow 1 polling ethernet 1/g1-1/g10 200
Example #3: Configure sFlow on an Ethernet interface with a polling interval of 400 seconds
console(config-if-1/g15)#sflow 1 polling 400
Example #4: Show the sFlow configuration for receiver index 1
console#show sflow 1 destination
Receiver Index
.................................
1
Owner String
...................................
site77
Time out
.......................................
1529
IP Address:
....................................
30.30.30.1
Address Type
...................................
1
Port
...........................................
560
Datagram Version
...............................
5
Maximum Datagram Size
..........................
500