Configure Switching Information 
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 M4300 Series and M4300-96X Fully Managed Switches User Manual
6.  To refresh the page with the latest information on the switch, click the Update button.
The Status field displays Neither PVST nor Rapid-PVST is enabled. If you change the 
STP mode to PVST or to RPVST, the page displays statistic information.
Multicast
Multicast IP traffic is traffic that is destined to a host group. Host groups are identified by 
class  D IP addresses, which range from 224.0.0.0 to 239.255.255.255. 
View the MFDB Table
The Multicast Forwarding Database holds the port membership information for all active 
multicast address entries. The key for an entry consists of a VLAN ID and MAC address pair. 
Entries can contain data for more than one protocol.
 To view the MFDB Table:
1.  Launch a web browser.
2.  In the address field of your web browser, enter the IP address of the switch.
The login window opens.
3.  Enter the user name and password. 
The default admin user name is 
admin and the default admin password is blank, that is, 
do not enter a password.
4.  Click the Login button. 
The System Information page displays.
5.  Select Switching > Multicast > MFDB > MFDB T
able.