Dell Cisco Catalyst 3850 PS Series Configuration Manual - Page 8

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Dell Cisco Catalyst 3850 PS Series Configuration Manual
2.5

Configure policy-map and increase queue multiplier

Switch(config)#policy-map single-queue-buffer
Switch(config-pmap)#class class-default
Switch(config-pmap-c)#bandwidth percent 100
Switch(config-pmap-c)#queue-buffers ratio 100
Switch(config-pmap-c)#exit
Switch(config-pmap)#exit
Note: Cisco issue CSCuu14019 and other related issues require the following buffer multiplier command to
prevent output queue drops.
Switch(config)#qos queue-softmax-multiplier 1200
2.6

Configure port-channel interfaces

Switch(config)#interface port-channel 1
Switch(config-if)#switchport
Switch(config-if)#flowcontrol receive on
Switch(config-if)#exit
Note: 10 Gb ports 1/1/3 and 1/1/4 are used for the port-channel. Change the port number in the following
command if using other ports for the port channel between two switches.
Switch(config)#interface range tenGigabitEthernet 1/1/3 - 4
Switch(config-if-range)#no shutdown
Switch(config-if-range)#channel-group 1 mode active
Switch(config-if-range)#service-policy output single-queue-buffer
Switch(config-if-range)#exit
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Cisco Catalyst 3850 Switch Configuration Guide for Dell PS Series SANs | SCG3299