NETGEAR S3300-28X (GS728TX) 24x1GE - Инструкция по эксплуатации - Страница 347

 Configuration Examples

347

 S3300 Smart Managed Pro Switch

On this network, traffic from streaming applications uses UDP port 4567 as the source and 
4568 as the destination. This real-time traffic is time sensitive, so it is assigned to a 
high-priority hardware queue. By default, data traffic uses hardware queue 0, which is 
designated as a best-effort queue. 

Also the 

confirmed action

 on this flow is to send the packets with a committed rate of 

1,000,000 Kbps and burst size of 128 KB. Packets that violate the committed rate and burst 
size are dropped.

802.1X Configuration Example

Local Area Networks (LANs) are often deployed in environments that permit unauthorized 
devices to be physically attached to the LAN infrastructure, or permit unauthorized users to 
attempt to access the LAN through equipment already attached. In such environments, it can 
be desirable to restrict access to the services offered by the LAN to those users and devices 
that are permitted to use those services.

Port-based network access control makes use of the physical characteristics of LAN 
infrastructures in order to provide a means of authenticating and authorizing devices 
attached to a LAN port that has point-to-point connection characteristics and of preventing 
access to that port in cases in which the authentication and authorization process fails. In this 
context, a port is a single point of attachment to the LAN, such as ports of MAC bridges and 
associations between stations or access points in IEEE 802.11 Wireless LANs.

The IEEE 802.11 standard describes an architectural framework within which authentication 
and consequent actions take place. It also establishes the requirements for a protocol 
between the authenticator (the system that passes an authentication request to the 
authentication server) and the supplicant (the system that requests authentication), as well 
as between the authenticator and the authentication server.

The switch supports a guest VLAN, which allows unauthenticated users to have limited 
access to the network resources.

Note:

You can use QoS features to provide rate limiting on the guest VLAN 
to limit the network resources the guest VLAN provides.

Another 802.1X feature is the ability to configure a port to Enable/Disable EAPoL packet 
forwarding support.You can disable or enable the forwarding of EAPoL when 802.1X is 
disabled on the device. 

The ports of an 802.1X authenticator switch provide the means in which it can offer services 
to other systems reachable via the LAN. Port-based network access control allows the 
operation of a switch’s ports to be controlled in order to ensure that access to its services is 
only permitted by systems that are authorized to do so.

Port access control provides a means of preventing unauthorized access by supplicants to 
the services offered by a system. Control over the access to a switch and the LAN to which it