Thank you ,its working

Regards
Ramesh

Assuming you want to see the switches per tower as well as all connected devices, the following should work:

In the properties of each switch in tower 1, select Location. For the sake of this example, set Street Address to "Tower 1".
Create a new network map, map type Layer 2 Topology. Select one of the switches in Tower 1 as Seed Node.

Now right-click the map, select Properties -> Object Filter and paste the following:

if ( $node->streetAddress == "Tower 1" ) return true;
interfaces = GetNodeInterfaces($node);
foreach(i : interfaces)
{
	if ( i->peerNode != null ) peerNode = i->peerNode;
	else continue;
	if ( peerNode->streetAddress == "Tower 1" ) return true;
}
return false;

What the above does is allow any node onto the map that has a street address of "Tower 1" (and is connected to your seed node), as well as any node that has an interface connected to a node with a street address of "Tower 1" (as long as that node is linked to your seed node somehow and within the discovery radius).

Probably not the prettiest or most efficient way of doing it, but a quick test worked on my system.

As I'm very new to NetXMS  could you please help me with the settings as you mentioned in your previous email.

Setting the postal address attributes for switch
 Filtering script

Regards
Ramesh

you can set either standard postal address attributes or some custom attribute on each switch to indicate which tower it belongs to, and then create 3 maps and use filtering script to filter only switches related to certain tower.

Best regards,
Victor

Can you help me with Network Maps

In a project i have only 1 Subnet  but the switches are distributed in 3 Towers, hence in the network maps i wanted to visualize the switches in 3 different towers.

How can i create a Network Map for 3 different towers showing only the switches present in each tower  though all the switches are in the same Subnet?

IP topology map shows IP topology ignoring physical connectivity between nodes - and I suppose that all nodes and switches in your network are in the same IP subnet. What you need is layer 2 topology map, which shows physical connections between devices.

Best regards,
Victor