Белая книга для Cisco Cisco Nexus 2224TP GE Fabric Extender

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1. Define a class map of QoS policies on the first switch to identify the iSCSI traffic (here, iSCSI traffic is

matched to class-of-service [CoS] 5):

N5548-Bottom(config)# class-map type qos match-all iSCSI-C1

N5548-Bottom(config-cmap-qos)# match protocol iscsi

N5548-Bottom(config-cmap-qos)# match cos 5

2. Configure the type of QoS policies used to classify the traffic of a specific system class (here, the

QoS-group value 2 is used):

N5548-Bottom(config)# policy-map type qos iSCSI-C1

N5548-Bottom(config-pmap-qos) class iSCSI-C1

N5548-Bottom(config-pmap-c-qos)# set qos-group 2

N5548-Bottom(config-pmap-c-qos)# exit

N5548-Bottom(config-pmap-c-qos)# class class-default

3. Configure the no-drop policy maps:

N5548-Bottom(config)# class-map type network-qos iSCSI-C1

N5548-Bottom(config-cmap-nq)# match qos-group 2

N5548-Bottom(config-cmap-nq)# exit

N5548-Bottom(config)# policy-map type network-qos iSCSI-C1

N5548-Bottom(config-pmap-nq)# class type network-qos iSCSI-C1

N5548-Bottom(config-pmap-nq-c)# pause no-drop

N5548-Bottom(config-pmap-nq-c)# class type network-qos class-default

N5548-Bottom(config-pmap-nq-c)# mtu 9216

4. Apply the system service policies:

N5548-Bottom(config-sys-qos)# service-policy type qos input iSCSI-C1

N5548-Bottom(config-sys-qos)# service-policy type network-qos iSCSI-C1

5. Identify the iSCSI traffic on the other Cisco Nexus switch using the same process as for the first

switch by defining a class map for each class of traffic to be used in the QoS policies:

N5548-Top(config)# class-map type qos match-all iSCSI-C1

N5548-Top(config-cmap-qos)# match protocol iscsi

N5548-Top(config-cmap-qos)# match cos 5

6. Configure the QoS policy type:

N5548-Top(config)# policy-map type qos iSCSI-C1

N5548-Top(config-pmap-qos) class iSCSI-C1

N5548-Top(config-pmap-c-qos)# set qos-group 2

N5548-Top(config-pmap-c-qos)# exit

N5548-Top(config-pmap-c-qos)# class class-default