TP-Link TL-SG2424P TL-SG2424P V1 User Guide 1910010774 - Page 114

Schedule Mode

Page 114 highlights

The following entries are displayed on this screen:  Priority and CoS-mapping Config Tag-id/Cos-id: Queue TC-id: Indicates the precedence level defined by IEEE802.1P and the CoS ID. Indicates the priority level of egress queue the packets with tag and CoS-id are mapped to. The priority levels of egress queue are labeled as TC0, TC1, TC2 and TC3. Configuration Procedure: Step Operation Description 1 Configure the mapping Required. On QoS→DiffServ→802.1P/CoS mapping relation between the 802.1P page, configure the mapping relation between the priority Tag/CoS and the TC 802.1P priority Tag/CoS and the TC. 2 Select a schedule mode Required. On QoS→DiffServ→Schedule Mode page, select a schedule mode. 9.1.4 Schedule Mode On this page you can select a schedule mode for the switch. When the network is congested, the problem that many packets complete for resources must be solved, usually in the way of queue scheduling. The switch will control the forwarding sequence of the packets according to the priority queues and scheduling algorithms you set. On this switch, the priority levels of egress queue are labeled as TC0, TC1... TC3. Choose the menu QoS→DiffServ→Schedule Mode to load the following page. Figure 9-9 Schedule Mode The following entries are displayed on this screen:  Schedule Mode Config SP-Mode: Strict-Priority Mode. In this mode, the queue with higher priority will occupy the whole bandwidth. Packets in the queue with lower priority are sent only when the queue with higher priority is empty. WRR-Mode: Weight Round Robin Mode. In this mode, packets in all the queues are sent in order based on the weight value for each queue. The weight value ratio of TC0, TC1, TC2 and TC3 is 1:2:4:8. 106

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The following entries are displayed on this screen:
Priority and CoS-mapping Config
Tag-id/Cos-id:
Indicates the precedence level defined by IEEE802.1P and the
CoS ID.
Queue TC-id:
Indicates the priority level of egress queue the packets with tag
and CoS-id are mapped to. The priority levels of egress queue are
labeled as TC0, TC1, TC2 and TC3.
Configuration Procedure:
Step
Operation
Description
1
Configure
the
mapping
relation between the 802.1P
priority Tag/CoS and the TC
Required. On
QoS
DiffServ
802.1P/CoS mapping
page, configure the mapping relation between the
802.1P priority Tag/CoS and the TC.
2
Select a schedule mode
Required. On
QoS
DiffServ
Schedule Mode
page,
select a schedule mode.
9.1.4 Schedule Mode
On this page you can select a schedule mode for the switch. When the network is congested, the
problem that many packets complete for resources must be solved, usually in the way of queue
scheduling. The switch will control the forwarding sequence of the packets according to the priority
queues and scheduling algorithms you set. On this switch, the priority levels of egress queue are
labeled as TC0, TC1… TC3.
Choose the menu
QoS
DiffServ
Schedule Mode
to load the following page.
Figure 9-9 Schedule Mode
The following entries are displayed on this screen:
Schedule Mode Config
SP-Mode:
Strict-Priority Mode. In this mode, the queue with higher priority
will occupy the whole bandwidth. Packets in the queue with lower
priority are sent only when the queue with higher priority is empty.
WRR-Mode:
Weight Round Robin Mode. In this mode, packets in all the
queues are sent in order based on the weight value for each
queue. The weight value ratio of TC0, TC1, TC2 and TC3 is
1:2:4:8.
106