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Table 31 Configuration: Switch Configuration: Switch Setup (continued)
LABEL
IGMP Snooping
Bridge control protocol
transparency
Bandwidth control
Broadcast storm control
Mirroring
Monitor Port
802.1x
Port Security
VLAN Stacking SP TPID
VLAN Port GVRP
Port Isolation
DHCP Relay
Apply
11.3 Priority Queue
Queuing is used to help solve performance degradation when there is network congestion. Use
the Queue Method screen to configure queuing algorithms for outgoing traffic.
Queuing algorithms allow switches to maintain separate queues for packets from each
individual source or flow and prevent a source from monopolizing the bandwidth.
11.3.1 Strictly Priority
Strictly Priority (SP) services queues based on priority only. As traffic comes into the switch,
traffic on the highest priority queue, Q7 is transmitted first. When that queue empties, traffic
on the next highest-priority queue, Q6 is transmitted until Q6 empties, and then traffic is
transmitted on Q5 and so on. If higher priority queues never empty, then traffic on lower
priority queues never gets sent. SP does not automatically adapt to changing network
requirements.
Chapter 11 Switch Configuration
DESCRIPTION
Select the check box to enable IGMP snooping. See
98
for more information on IGMP snooping.
Select the check box to allow the switch to handle bridging control
protocols (STP for example). You also need to define how to treat a BPDU
in the Port Setup screen.
Select the check box to activate bandwidth control.
Select the check box to activate broadcast storm control.
Select the check box to activate port mirroring.
The monitor port is the port you copy the traffic to in order to examine it in
more detail without interfering with the traffic flow on the original port(s).
Select a port from this drop-down list box.
Select the check box to activate 802.1x authentication.
Select the check box to activate port security.
SP TPID is a standard Ethernet type code identifying the frame and
indicates whether the frame carries IEEE 802.1Q tag information. Choose
0x8100 or 0x9100 from the drop-down list box or select Others and then
enter a four-digit hexadecimal number from 0x0000 to 0xFFFF. 0x
denotes a hexadecimal number. It does not have to be typed in the Others
text field.
Select the check box to permit VLANs groups beyond the local switch on
this port. GVRP (GARP VLAN Registration Protocol) is a registration
protocol that defines a way for switches to register necessary VLAN
members on ports across the network.
Port Isolation allows each port to communicate with the CPU port, uplink
ports and stacking ports but not communicate with each other. This option
is the most limiting but also the most secure.
Select the check box to enable DHCP relay.
Click Apply to save your changes back to the switch.
NetAtlas Enterprise 1.00 User's Guide
Section 11.1 on page
100
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