Dell 53-1002116-01 manual Converged Enhanced Ethernet map configuration

		Converged Enhanced Ethernet map configuration	10
TABLE 21	Multicast traffic class equivalence mapping (Continued)
Multicast traffic class		Equivalent unicast traffic class
3		3
4		4
5		5
6		6
7		7

Once the multicast traffic class equivalence mapping has been applied, then scheduling and any scheduler configuration are inherited from the equivalent unicast traffic class. See Table 20 on page 105 for details on exact mapping equivalencies.

Unicast ingress and egress queueing utilizes a hybrid scheduler that simultaneously supports SP+WRR service and multiple physical queues with the same service level. Multicast adds additional multicast expansion queues. Because multicast traffic classes are equivalent to unicast service levels, they're treated exactly as their equivalent unicast service policies.

Scheduling the QoS multicast queue

To schedule the QoS multicast queue, perform the following steps from Privileged EXEC mode. 1. Enter global configuration mode.

switch#configure terminal

2. Specify the schedule to use and the traffic class to bandwidth mapping.

switch(config)#qos queue multicast scheduler dwrr 10 10 10 10 10 10 10 30

The following example sets the multicast Traffic Class frame expansion scheduler for Traffic Class 0 through 6 getting 10 percent bandwidth and Traffic Class 7 getting 30 percent bandwidth.

switch:admin>cmsh switch>enable switch#configure terminal

Enter configuration commands, one per line. End with CNTL/Z. switch(config)#qos queue multicast scheduler dwrr 10 10 10 10 10 10 10 30 switch(config)#end

3. Enter the copy command to save the running-config file to the startup-config file.

switch#copy running-config startup-config

Converged Enhanced Ethernet map configuration

The CEE QoS covers frame classification, priority and traffic class (queue) mapping, congestion control, and scheduling. Under the CEE Provisioning model all of these features are configured utilizing two configuration tables, Priority Group Table and Priority Table.

CEE Priority Group Table defines each Priority Group ID (PGID) and its scheduling policy (Strict Priority versus DWRR, DWRR weight, relative priority), and partially defines the congestion control (PFC) configuration. There are 16 rows in the CEE Priority Group Table. Table 22 presents the default CEE Priority Group Table configuration.

Dell Converged Enhanced Ethernet Administrator’s Guide	107
53-1002116-01