UNICOM

SmartGST-2402M

high-priority queue.

These options represent the number of high priority packets sent before one low priority packet is sent. For example, 5 High: 2 Low means that the switch sends 5 high priority packets before sending 2 low priority packets.

QoS Policy: High Priority Levels: 0~7 priority level can be assigned to the high or low queues.

5-4-2-3 Miscellaneous Setting

Collisions Retry Forever:

Disable –in case of collisions in half duplex, switch will retry 48 times and then drop frame.

Enable – in case of collisions in half duplex, switch will retry indefinitely.

802.1x Protocol: Enable or disable 802.1x protocol.

Hash Algorithm: CRC Hash or Direct Map for MAC address learning algorithm

IFG Compensation: Internal Packet Gap time compensation configuration: Enable or Disable.

IGMP Query Mode: Recognizes different queries from clients or servers to decide which Query will be the first priority. The modes are:

a. Auto Mode: Chooses the switch that has the smallest IP address to be set for the IGMP Query mode.

b. Enable Mode: Enables the switch to be the IGMP Querier.

c. Disable Mode: Disables all other switches from being the IGMP Querier.

IGMP Theory of Operation

The following three topologies detail how IGMP Query works and can be configured within a network:

Auto Mode should be enabled when the router’s IP address is smaller than other switches in the subnet.

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UNICOM Electric SmartGST-2402M manual Miscellaneous Setting, Collisions Retry Forever