3 Web-based Management
(Destination Lookup Failed) packets passing through a port, thus it will lead to traffic
congestion. If the transmission rate of the three kinds of packets exceeds the set bandwidth,
the packets will automatically be discarded to avoid network broadcast storm.
This page sets thresholds of the specified Traffic Type.
Select the Traffic Type from none, Broadcast, Multicast, Unknown Unicast, Broadcast +
Multicast, Broadcast + Unknown Unicast, and Broadcast + Unknown Unicast and Broadcast
+ Multicast + Unknown Unicast. Specify a rate limit within the range of 1 - 262143 PPS. Storm
control is disabled by default.
3.6.11 Port Security
Port security is a security mechanism for network access control. It is an expansion to the
current 802.1x and MAC address authentication.
Port security allows you to define various security modes that enable devices to learn legal
source MAC addresses, so that you can implement different network security management
as needed.
With port security enabled, packets whose source MAC addresses cannot be learned by your
switch in a security mode are considered illegal packets. The events that cannot pass 802.1x
authentication or MAC authentication are considered illegal.
With port security enabled, upon detecting an illegal packet or illegal event, the system
triggers the corresponding port security features and takes pre-defined actions automatically.
This reduces your maintenance workload and greatly enhances system security and
manageability.
Port security allows more than one user to be authenticated on a port. The number of
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