Cisco Cisco Nexus 5010 Switch Guida Alla Progettazione
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qos-group 0
q-size: 470080, HW MTU: 1500 (1500 configured)
drop-type: drop, xon: 0, xoff: 2938
If you want to change the configuration to add support for FCoE, you can just use the predefined policies, which
include both FCoE and class-default policies, and apply them either at the system level or at the interface level.
The following configuration shows the predefined policies that include FCoE:
class-map type qos match-any class-fcoe
match cos 3
class-map type qos match-any class-default
match any
policy-map type qos fcoe-default-in-policy
class type qos class-fcoe
set qos-group 1
class type qos class-default
set qos-group 0
policy-map type network-qos fcoe-default-nq-policy
class type network-qos class-fcoe
pause no-drop
mtu 2158
class type network-qos class-default
mtu 1500
multicast-optimize
policy-map type queuing fcoe-default-in-policy
class type queuing class-fcoe
bandwidth percent 50
class type queuing class-default
bandwidth percent 50
policy-map type queuing fcoe-default-out-policy
class type queuing class-fcoe
bandwidth percent 50
class type queuing class-default
bandwidth percent 50
QoS Group Allocation on Cisco Nexus 5020 and 5010
On the Cisco Nexus 5000 Series Switches other than the Cisco Nexus 5500 platform, control-plane traffic is
associated with either QoS group 6 or 7. Which control-plane traffic goes to which QoS group is predefined based
on matching entries in the TCAM and cannot be modified.
The class-default value is associated with QoS group 0.
On these Cisco Nexus 5000 Series Switches, traffic classes and QoS groups are allocated as follows:
●
class-default: This is the class for all traffic that is not otherwise classified as belonging to other classes.
This class exists by default; it cannot be removed, but it can be modified.
●
qos-group 1: This is a hard-coded class for FCoE traffic.