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eSight cannot display traffic analysis from S5720-EI when sFlow is configured

Publication Date:  2018-03-10 Views:  251 Downloads:  0
Issue Description

Fault symptom: Customer wanted to use eSight tool to do traffic analysis from his S5720 using sFlow. For other model types he could use eSight but he configured NetStream and not sFlow. 
Version information: 

Huawei Versatile Routing Platform Software

VRP (R) software, Version 5.160 (S5720 V200R007C00SPC500)

Copyright (C) 2000-2014 HUAWEI TECH CO., LTD

HUAWEI S5720-56C-PWR-EI-AC1 Routing Switch uptime is 130 weeks, 1 day, 20 hours, 0 minute

Configuration script:

sflow collector 1 ip <hided IP> port 9995

sflow agent ip <hided IP> 

Interface GigabitEthernet0/0/x

sflow counter-sampling collector 1

sflow counter-sampling interval 30

sflow flow-sampling collector 1

sflow flow-sampling rate 1024

Handling Process
1)First of all I checked if eSight can support sFlow for this device in the document with Function List but the document stated that it's not supported : 

2) Asked to capture the packets on the server to see if there are incoming UDP packets with destination port 9995. We can also ask the customer to use 9996 port and check if the port is ocuppied on the server with the command: netstat -ano|findstr 9996 and kill the processes with the command : taskkill /F /PID _ID_Process

3) Asked to do a cross-test and try to configure NetStream instead of sFlow to confirm if eSight can display information using this protocol. Unfortunately, this device cannot support NetStream:

4) Asked for the configuration in the eSight(for device and interface): 

5) Since the device was unmanaged, I asked the customer to manage the device in eSight: 

Root Cause

As written above, we asked the customer to manage this switch in eSight but he received the below error: 

As we can see, the error is clear and we asked teh customer to check further the available resources for the devices that can be managed by NTA. 

We can clearly see that maximum number of NTA managed devices was reached and the customer couldn't manage another device.

Solution:  We asked the customer to unmanage a device to check if sFlow can display the statistics for that interface and also to purchase further resources.