Chapter 4: Web configuration 
NS3552-8P-2S-V2 User Manual  171 
Object  Description 
Select the port role by clicking the Role symbol to switch the setting. 
I indicates Inactive; S indicates Source; R indicates Receiver. The default 
Role is Inactive. 
Immediate Leave  Enable the fast leave on the port. 
Buttons 
•  Click Add New MVR VLAN to add a new MVR VLAN. Specify the VID and 
configure the new entry, and then click Save. 
•  Click Save to save changes. 
•  Click Reset to undo any changes made locally and revert to previously saved 
values. 
MVR status 
The MVR Statistics page provides MVR status. 
 
The page includes the following fields: 
 
Object  Description 
VLAN ID  The multicast VLAN ID. 
IGMP/MLD Queries 
Received 
The number of received queries for IGMP and MLD, respectively. 
IGMP/MLD Queries 
Transmitted 
The number of transmitted queries for IGMP and MLD, respectively. 
IGMPv1 Joins 
Received 
The number of received IGMPv1 joins. 
IGMPv2/MLDv1 
Reports Received 
The number of received IGMPv2 joins and MLDv1 reports, respectively. 
IGMPv3/MLDv2 
Reports Received 
The number of received IGMPv1 joins and MLDv2 reports, respectively. 
IGMPv2/MLDv1 
Leaves Received 
The number of received IGMPv2 leaves and MLDv1 dones, respectively. 
Buttons 
•  Click Refresh to refresh the page immediately. 
•  Click Clear to clear all statistics counters.