Configuring The Queue Limit For A Specified Fabric Extender - Cisco Nexus 5000 Series Configuration Manual
Nx-os quality of service
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Configuring the Queue Limit for a Specified Fabric Extender
SUMMARY STEPS
1. switch# configure terminal
2. switch(config)# interface {ethernet [chassis/]slot/port | port-channel channel-number}
3. switch(config-if)# service-policy [type {qos | queuing}] [input | output]policy-name
4. switch(config-if)# service-policy input policy-name
DETAILED STEPS
Command or Action
Step 1
switch# configure terminal
Step 2
switch(config)# interface {ethernet
[chassis/]slot/port | port-channel
channel-number}
Step 3
switch(config-if)# service-policy [type
{qos | queuing}] [input |
output]policy-name
Step 4
switch(config-if)# service-policy input
policy-name
This example shows how to apply a policy to an Ethernet interface:
switch# configure terminal
switch(config)# interface ethernet 1/1
switch(config-if)# service-policy type qos input policy1
Configuring the Queue Limit for a Specified Fabric Extender
At the Fabric Extender configuration level, you can control the queue limit for a specified Fabric Extender
for egress direction (from the network to the host). You can use a lower queue limit value on the Fabric
Extender to prevent one blocked receiver from affecting traffic that is sent to other noncongested receivers
("head-of-line blocking"). A higher queue limit provides better burst absorption and less head-of-line blocking
protection. You can use the no form of this command to allow the Fabric Extender to use all available hardware
space.
Cisco Nexus 5000 Series NX-OS Quality of Service Configuration Guide
38
Purpose
Enters configuration mode.
Enters configuration mode for the specified interface.
The service policy on a port channel applies to all member
Note
interfaces.
Specifies the policy map to use as the service policy for the system. There
are two policy-map configuration modes:
• qos—Classification mode; this is the default mode.
• queuing—Queuing mode.
The input keyword specifies that this policy map should be applied
Note
to traffic received on an interface. The output keyword specifies
that this policy map should be applied to traffic transmitted from
an interface. You can only apply input to a qos policy; you can
apply both input and output to a queuing policy.
Applies the policy map to the interface.
There is a restriction that system type qos policy cannot be the same
Note
as any the type qos policy applied to an interface or EtherChannel.
Configuring QoS
OL-20921-01
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