User`s manual

EDS-600 Series User’s Manual Featured Functions
3-68
Using Bandwidth Management
In general, one host should not be allowed to occupy unlimited bandwidth, particularly when the
device malfunctions. For example, so-called “broadcast storms” could be caused by an
incorrectly configured topology, or a malfunctioning device. The EDS-600 series not only
prevents broadcast storms, but can also be configured to a different ingress rate for all packets,
giving administrators full control of their limited bandwidth to prevent undesirable effects caused
by unpredictable faults.
Traffic Rate Limiting Settings
Ingress
Setting Description Factory Default
Ingress rate Select the ingress rate for all packets from the following
options: Not Limited, 128K, 256K, 512K, 1M, 2M, 4M,
8M
N/A
Using Port Access Control
The EDS-600 provides two kinds of Port-Based Access Controls. One is Static Port Lock and the
other is IEEE 802.1X.
Static Port Lock
The EDS-600 can also be configured to protect static MAC addresses for a specific port. With the
Port Lock function, these locked ports will not learn any additional addresses, but only allow
traffic from preset static MAC addresses, helping to block crackers and careless usage.
IEEE 802.1X
The IEEE 802.1X standard defines a protocol for client/server-based access control and
authentication. The protocol restricts unauthorized clients from connecting to a LAN through ports
that are open to the Internet, and which otherwise would be readily accessible. The purpose of the
authentication server is to check each client that requests access to the port. The client is only
allowed access to the port if the client’s permission is authenticated.