ZyXEL Communications Dimension ES-2008 User Manual page 44

Table 5-1 Switching Configuration: Advanced
FIELD
Max Delay Specify a time period a low priority packet is allowed to queue in the
Time switch before the packet is dropped.
Priority Queue With QoS (Quality of Service) organizations can differentiate traffic by
Assignment setting the precedence values in the IP header at the periphery of the
(Checked for network to enable the backbone to prioritize traffic.
High Priority)
Level1 ... Select the check box(es) to add the packets with the level bits to the high
Level7 priority queue.
Protocol Enable Settings
Enable Select this option to activate Spanning Tree Protocol (STP). Refer to the
Spanning STP chapter for more information.
Tree Protocol
Enable IGMP Select this option to activate Internet Group Multicast Protocol (IGMP).
Protocol Refer to Section 8.1 for more information.
IGMP Query Select Auto to allow the network to automatically find the IGMP server.
Mode The multicast device with the lowest numerical IP address to be the IGMP
server. This is the default setting.
Select Enable to force this switch to be the IGMP server even when there
is already an IGMP server on the network. Selecting this option may
affect network performance.
Select Disable to forcibly disallow this switch from being an IGMP server.
Select No VLAN, 802.1Q with GVRP, 802.1Q without GVRP or Port-
VLAN
Operation Based from the drop-down list box.
Mode
Select No VLAN to disable VLANs.
Select 802.1Q with GVRP to set up tag-based VLAN groups that extend
beyond the local switch.
Select 802.1Q without GVRP to set up tag-based VLAN groups on the
switch only.
Select Port-Based to set up port-based VLANs.
Refer to the chapter on VLANs.
Advanced Switch Configuration
Dimension ES-2008 Ethernet Switch
DESCRIPTION
5-3