NEC IP8800/S2400 User Manual

3.   

Troubleshooting Functional Failures in Operation

112

3.15 Troubleshooting of sFlow Statistics (Flow Statistics) 

Function

The flow for troubleshooting of sFlow statistics function in this system is as follows.

Figure 3-18: Troubleshooting Flow of sFlow Statistics Function

3.15.1

sFlow Packets Do Not Reach Collector

(1) Checking route to the collector

See "

" and "

to check to see if the collector is properly connected to network. If the maximum size of sFlow packets 
(max-packet-size) is changed with the configuration, check to see if the connection to the collector can be established 
with the specified packet size.

(2) Checking operation status by operation command

Execute the show sflow command several times to display the sFlow statistical information and check to see if 
sFlow statistics function operates normally. If the underlined values shown below are not incremented, see 
"

." If incremented, see "

," " 

" and "

" to check to see if the 

collector is properly connected to network.

Figure 3-19: Display Example of show sflow 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) :    

Checking operation status by operation 

command.

Checking route to the collector. 

Checking configuration.

Checking failures etc.