User's Manual

Table Of Contents

While enabled, the Unicast frames with the management CPU DA can go from the

Eth1 and Eth2 ports in to the CPU port. The static record with the CPU DA in the ATU

table has to be configured (it is pre-configured by default).

Member

(VLAN Table)

The In Chip Port based VLAN Table contains parameters used to restrict the output

ports to which an input port can send frames. These parameters (VLANTable bits)

are used for all frames, except for MGMT frames, even if 802.1q is enabled on this

port. These parameters restrict where a port can send frames to (unless a VLANTunnel

frame is being received). If ForceMap (Learning) is enabled, these parameters indicate

which port or ports all frames that ingress this port are sent to overriding the mapping

from the address database.

The default setting prevents sending frames from Eth1 to Eth2 and vice versa. This

is very important for separating different networks (e.g. different customers) connected

to separate user ports.

The Link authorization guard affects the user data flow through the Air channel. When

the Link authorization guard is enabled, the user Ethernet ports to Air port connection

control is disabled. Parameter status of user Ethernet to Air port connection changes

dynamically according to Link authorization status.

Configuration