Brocade Multi-Service IronWare QoS and Traffic Management Configuration Guide (Supporting R05.6.00) - Manual (Page 76)

62 Multi-Service IronWare QoS and Traffic Management Configuration Guide
53-1003037-02
Egress port and priority based rate shaping
3
STP configured to ON, Priority is level0, flow control enabled
mirror disabled, monitor disabled
Not member of any active trunks
Not member of any configured trunks
No port name
MTU 1544 bytes, encapsulation ethernet
300 second input rate: 754303848 bits/sec, 1473249 packets/sec, 89.57% utilization
300 second output rate: 754304283 bits/sec, 1473250 packets/sec, 89.57%
utilization
1015230949 packets input, 64974783168 bytes, 0 no buffer
Received 0 broadcasts, 0 multicasts, 1015230949 unicasts
0 input errors, 0 CRC, 0 frame, 0 ignored
0 runts, 0 giants
NP Ingress dropped 0 packets
1015231660 packets output, 64974824768 bytes, 0 underruns
Transmitted 0 broadcasts, 0 multicasts, 1015231660 unicasts
0 output errors, 0 collisions
Multicast queue size, flow control, rate shaping and egress buffer
threshold
There are four internal priorities for multicast or broadcast traffic. These four priorities are mapped
from the device’s eight internal priorities as described in
Table 16
The internal forwarding priority of a multicast or broadcast packet is determined from the packet’s
IEEE 802.1p priority, incoming port priority or IP ToS or DSCP as described in the
“Default QoS
mappings” on page 79. Four multicast queue types (0 to 3) are used for multicast internal priorities
0 to 3 respectively.
NOTE
Instead of ACL priority, use VLAN or port priority to prioritize multicast traffic.
Configuring multicast queue size
The following example configures a 2 MByte queue size for queue 0.
Brocade(config)# qos multicast-queue-type 0 max-queue-size 2048
Syntax: [no] qos multicast-queue-type queue-number max-queue-size queue-size
The queue-number variable specifies the queue that you want to configure a maximum size for.
Possible values are 0 - 3.
The queue-size variable specifies size in KBytes that you want to set as the maximum value for the
specified multicast queue. Possible values are 1 - 32768 KBytes. The default queue size is 1
Mbyte. This command is applied per device and takes effect on all Traffic Managers within the
configured device.
TABLE 16 Mapping between multicast or broadcast and internal forwarding priorities
Internal
Forwarding
Priority 0,1 2,3 4,5 6,7
Multicast
Internal Priority 0 1 2 3