Access Control

• Can be controlled by Layer1 to Layer4 information
• By designating applicable traffic conditions, multiple actions, such as disposal/QoS/bandwidth limiting/redirection/mirroring can be set.

Various Traffic Designation Conditions

Packet Filter Application Example

• Browsing Service Limitation on Windows Terminal
  Discarding NBT(NetBIOS over TCP/IP)prevents Windows terminals from looking in other terminals by browsing service.
• Limitation of Unnecessary Traffic into Backbone Network
  Discarding unnecessary traffic(e.g. other protocol traffic, such as Apple Talk, IPX under IP network environment), restricts unnecessary traffic flows to the backbone network.