Why Does the NMS Display the Error Message another nms was polling the switch with wrong communityWhen It Uses SNMPv2c to Connect to the Switch?

The U2000 V200R014C60 and later versions support the MA5800. It is recommended that you use the NMS version matched with the MA5800 version.

Hello,
U2000 and later version the MA5800 X15. It is recommended that you use the NMS number matched with the MA5800 version.

Please provide more detailed information

The reason is that the community name configured on the NMS is different from the community name configured on the switch.
When this error message is displayed, run the display snmp-agent community command to check the community name configured on the switch, and then change the community name on the NMS to be the same as that on the switch.

The TN52NS3 can be created as NS3 on the NMS. The former can substitute for the latter, without any software upgrade. After substitution, the TN52NS3 functions as the TN11NS3.
The TN56NS3 can be created as 55NS3 on the NMS. The former can substitute for the latter, without any software upgrade. After substitution, the TN56NS3 functions as the TN55NS3.

To download the required software visit : http://nms.csail.mit.edu/projects/blueware/software/
For Installation and working Instruction : http://nms.csail.mit.edu/projects/blueware/software/README-BLUEWARE

this is just for to appear the node on NMS. so if you are having some problem with it you can change it but you will not see it on NMS.

You don’t need to configure SP1 for CPSS, log on to the node via you NMS and change it to VT100, then log in using a hyper terminal session on you laptop. If the SP1 port is setup for CPSS you will have to install a dongle and you will need to set your ANM up for networking meaning that you will have to speak to the node via CPSS. The only time you need to communicate using CPSS on SP1 is when you want to backup the database.

HP Openview, is an example of Network Management Software.Here is a link for some that you can try with explanations called Orion from Solar Winds

http://www.solarwinds.com/products/orion/

Hi try with this http://www.brothersoft.com/utilities/system_utilities/dvs-nms_3334.html