ZyXEL IES-1248-51V User Guide - Page 111

Chapter 13 Switch Setup Table 16 Switch Setup (continued) LABEL DESCRIPTION Join Timer Join Timer sets the duration of the Join Period timer for GVRP in milliseconds. Each port has a Join Period timer. The allowed Join Time range is between 100 and 65535 milliseconds; the default is 200 milliseconds. Leave Timer Leave Timer sets the duration of the Leave Period timer for GVRP in milliseconds. Each port has a single Leave Period timer. Leave Time must be two times larger than Join Timer; the default is 600 milliseconds. Leave All Timer Leave All Timer sets the duration of the Leave All Period timer for GVRP in milliseconds. Each port has a single Leave All Period timer. Leave All Timer must be larger than Leave Timer. Port Isolation Active Turn on port isolation to block communications between subscriber ports. When you enable port isolation you do not need to configure the VLAN to isolate subscribers. MAC AntiSpoofing Turn on MAC anti-spoofing to monitor for and prevent MAC address "spoofing" by malicious parties. Active Switch Mode Select Standalone to use both of the IES-1248-51V's Ethernet ports (ENET 1 and ENET 2) as uplink ports. Note: Standalone mode is recommended for network topologies that use loops. Use Daisychain mode to cascade (daisychain) multiple IES-124851V. The IES-1248-51V uses Ethernet port one (ENET 1) as an uplink port to connect to the Ethernet backbone and uses Ethernet port two (ENET 2) to connect to another (daisychained or subtending) IES1248-51V. Priority Queue Assignment Priority Level Priority 7 Priority 6 Note: Daisychain mode is recommended for network topologies that do not use loops. IEEE 802.1p defines up to 8 separate traffic types by inserting a tag into a MAC-layer frame that contains bits to define class of service. Frames without an explicit priority tag are given the default priority of the ingress port. Use the next two fields to configure the priority level-to-physical queue mapping. The device has 4 physical queues that you can map to the 8 priority levels for outgoing Ethernet traffic. The device has 8 physical queues that you can map to the 8 priority levels for outgoing ADSL traffic. Traffic assigned to higher index queues gets through the device faster while traffic in lower index queues is dropped if the network is congested. The following descriptions are based on the traffic types defined in the IEEE 802.1d standard (which incorporates IEEE 802.1p). Typically used for network control traffic such as router configuration messages. Typically used for voice traffic that is especially sensitive to jitter (jitter is the variations in delay). IES-1248-51V User's Guide 111