Setting Description
IGMP querier Uses the switch to send periodic query packets to multicast groups to
avoid multicast trac loss
Multicast ood blocking Blocks multicast ooding from unknown sources
Router Port Species which ports to use as the router port for the switch
After receiving an IGMP packet, QSS forwards the control packets
through the selected router ports.
Note
If you do not specify a router port, QSS automatically
assigns a port to be used as a router port.
Fast Leave Species the ports that support Fast Leave
After receiving an IGMP leave message, QSS stops forwarding specic
multicast trac to the selected Fast Leave ports.
5. Click Save.
QSS saves the IGMP snooping settings.
Managing access control list (ACL) entries
Access control lists allow you to handle network trac in a switch by using controlled rule sets. Each ACL rule
is a user-created set of conditions that the switch uses to determine whether a data packet can pass through
the network. If the data packet matches an existing ACL rule, the switch then uses the rule to determine
whether to permit or deny the packet. If there is no matching ACL rule or there are no ACL rules, the switch
applies a default rule.
You can use ACLs to control host access to dierent parts of a network or to control trac forwarding or
blocking at the switch level.
Adding an IP address–based ACL rule
1. Log in to QSS.
2. Go to Conguration > ACL > By IP Address .
3. Click Add.
The Add ACL - IP Address window opens.
4. Congure the ACL settings.
Setting User Action
ACL No. Specify a number between 1 and 255.
Source
IP Address Specify the source IP address.
Subnet Mask Specify the source subnet mask.
Destination
IP Address Specify the destination IP address.
Subnet Mask Specify the destination subnet mask.
Port Select specic ports to apply the ACL rule, or select All to apply the rule
to all ports.
QSW Managed Switches User Guide
QSS 23
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