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3. Troubleshooting Functional Failures in Operation
113
2093(2041)
Exported sFlow samples : 37269
Couldn't exported sFlow samples : 0
sFlow collector data :
Collector IP address: 192.168.4.199 UDP:6343 Source IP address: 130.130.130.1
Send FlowSample UDP packets : 12077 Send failed packets: 0
Send CounterSample UDP packets: 621 Send failed packets: 0
Collector IP address: 192.168.4.203 UDP:65535 Source IP address: 130.130.130.1
Send FlowSample UDP packets : 12077 Send failed packets: 0
Send CounterSample UDP packets: 621 Send failed packets: 0
>
Note: Confirm that the underlined values are incremented.
(3) Checking configuration
Check the configuration in operation on the following points:
• Check that the IP address and UDP port number of the sFlow packet destination collector are set correctly
in configuration.
Figure 3-20: Display Example Configuration 1
(config)# show sflow
sflow destination 192.1.1.1 6455
<- Collector information must be set correctly.
sflow sample 2048
!
(config)#
• Check that the sampling interval is set.
If the sampling interval is not set, the system operates with default value (large value), which is so large
that flow sample is seldom sent to the collector. Set the appropriate sampling interval. However, if the value
extremely smaller than the recommended value is set, the CPU usage may be raised.
Figure 3-21: Display Example of Configuration 2
(config)# show sflow
sflow destination 192.1.1.1 6455
sflow sample 2048 <- Appropriate sampling interval must be set.
!
(config)#
Figure 3-22: Display Example of Operation Command
> show sflow
Date 2006/10/24 20:04:01 UTC
sFlow service status: enable
Progress time from sFlow statistics cleared: 16:00:05
sFlow agent data :
sFlow service version : 4
CounterSample interval rate: 60 seconds
Default configured rate: 1 per 2048 packets
Default actual rate : 1 per 2048 packets
Configured sFlow ingress ports : 1/ 2-4
Configured sFlow egress ports : 5/ 9-11
Received sFlow samples : 37269 Dropped sFlow samples(Dropped Que) :
2093(2041)
Exported sFlow samples : 37269 Couldn't exported sFlow samples : 0
:
>
Note: Confirm that the appropriate sampling interval is displayed at the underlined part.
• Confirm that sflow forward is set for the physical port subject to flow statistics.