Brocade MLX Series and NetIron Family (Supporting Multi-Service IronWare R05.6.xx) - Manual (Page 40)

32 Brocade MLX Series and NetIron Family Documentation Updates
53-1003301-07
Configuring egress buffer threshold
1
Configuring egress buffer threshold
NOTE
The following command is available in all versions of NetIron 5.6.00.
The current configuration egress buffer threshold per port is set to 50% of total egress buffer size.
Using the followi3ng command you can set the egress buffer threshold up to 95% of total egress
buffer size which helps reduce egress packet drops when there is a high amount of traffic.
NOTE
It is recommended to use this command when a sudden burst is seen in traffic and not for general
use.
Syntax: Syntax: qos multicast egress-max-buffer port { [guaranteed_max_buffer]
[best-effort_max_buffer] }
Brocade#config terminal
Brocade(config)#interface ethernet 1/1
Brocade(config-if-e10000-1/1)# qos multicast egress-max-buffer port 95% 90%
The guaranteed_max_buffer specifies the maximum buffer size allowed per port for guaranteed
traffic flow (multicast port priority 3). Specified as percentage of total buffer size.
The best-effort_max_buffer specifies the maximum buffer size allowed per port for guaranteed
traffic flow (multicast port priority 2-0). Specified as percentage of total buffer size.
Additionally you can also have the threshold configured for individual ports so that each port has its
dedicated buffer space.
The example uses a 8x10 line card and has four ports per TM. The buffer size is divided into
quarters, so that each port has 1/4 of the total buffer size as its dedicated buffer space.
Brocade# config terminal
Brocade(config)# interface ethernet 1/1
Brocade(config-if-e10000-1/1)# qos egress-max-buffer port 24% 23%