ZyXEL Communications 1 - Manual (Page 127)

NetAtlas Enterprise 1.00 User’s Guide
Chapter 13 Ethernet Port Configuration 126
13.2 Port VLAN
Use the following screen to activate a port VLAN, GVRP and VLAN trunking.
13.2.1 Configuring Port VLAN
Follow the steps below to configure the Port VLAN screen.
1 In the Device Panel list, select a device and then right-click.
2 Click Configuration, Switch Configuration and then the Switch Setup tab.
3 Select the VLAN Port GVRP check box and then click Apply.
4 Click Configuration, Ethernet Port Configuration and then the Port VLAN tab.
Flow Control A concentration of traffic on a port decreases port bandwidth and overflows
buffer memory causing packet discards and frame losses. Flow Control is used
to regulate transmission of signals to match the bandwidth of the receiving port.
The switch uses IEEE802.3x flow control in full duplex mode and backpressure
flow control in half duplex mode.
IEEE802.3x flow control is used in full duplex mode to send a pause signal to
the sending port, causing it to temporarily stop sending signals when the
receiving port memory buffers fill. Back Pressure flow control is typically used
in half duplex mode to send a "collision" signal to the sending port (mimicking a
state of packet collision) causing the sending port to temporarily stop sending
signals and resend later. Select Flow Control to enable it.
802.1p Priority The switch uses this priority value for incoming frames without an IEEE 802.1p
priority queue tag. The switch uses this priority value internally and does not
add an IEEE 802.1p priority tag.
BPDU Control Configure the way to treat BPDUs received on this port. You must activate
bridging control protocol transparency in the Switch Setup screen first.
Select Peer to process any BPDU (Bridge Protocol Data Units) received on this
port.
Select Tunnel to forward BPDUs received on this port.
Select Discard to drop any BPDU received on this port.
Select Network to process a BPDU with no VLAN tag and forward a tagged
BPDU.
Intrusion Lock Select the Intrusion Lock check box to enable this security feature on a
selected port on the switch. If an Ethernet cable is disconnected from the port,
intrusion locking prevents access once a cable is reconnected. This limits risk
from unauthorised access such as hacking.
Note: You cannot access a port with intrusion locking enabled
after a cable is disconnected and then reconnected. You
must clear and re-select the Intrusion Lock check box to
allow access to the port again.
Apply Click Apply to save your changes back to the switch.
Table 48 Configuration: Ethernet Port Configuration: Port Setup (continued)
LABEL DESCRIPTION