Cisco 10000 - Manual (Page 467)

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Cisco 10000 Series Router Software Configuration Guide
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Chapter 20 Configuring Gigabit EtherChannel Features
Configuring QoS Service Policies on GEC Interfaces
Restrictions for QoS Service Policies on GEC Bundles
The following restrictions are applicable to QoS service policies applied on GEC bundle interfaces and
subinterfaces:
• Both ingress and egress service-policy without any queuing actions can only be applied on member
links for M:N deployment, and are restricted for 1:N deployment.
• Egress service-policy with queuing action can only be applied on:
– Member interfaces for an M:N GEC deployment
– Bundle interface for a 1:N GEC deployment.
• Restriction for application of QoS on VLAN groups:
– A VLAN group restricts the application of QoS to a maximum of 255 individual dot1Q (VLAN)
subinterfaces. 255 denotes the number of user classes that can be used in VLAN group parent
policy.
– Matching a VLAN group user class on QinQ subinterfaces is not supported using VLAN group
policy. Each VLAN group user class at parent hierarchy can only match a set of dot1Q
subinterfaces.
– VLAN group QoS policy at member link is used only when dot1Q subinterfaces are defined on
the GEC bundles and not when QinQ subinterfaces are defined on the GEC bundle.
• Input Quality of Service (QoS) on member links is not supported for QinQ subinterfaces.
• The classification criteria of match input-interface port-channel is not supported. Instead, packets
are classified by matching them with member-links.
Configuration Examples
This section provides the following configuration examples:
• Configuration Example for Using the VLAN Group Feature to Apply QoS on Member Links,
page 20-5
• Configuration Example for Applying QoS on GEC Bundle Subinterfaces, page 20-6
Configuration Example for Using the VLAN Group Feature to Apply QoS on Member Links
Step 1 Consider a GEC bundle interface with two member links Gig3/0/0 and Gig4/0/0.
Step 2 Assume subinterfaces exist on the GEC bundle interface having the following configurations:
Port-channel 1.1
Encapsulation dot1q 2
Port-channel 1.2
Encapsulation dot1q 3
Port-channel 1.3
Encapsulation dot1q 4
Assume that the following configurations need to be performed on each member link
• Police ingress traffic for subinterface port-channel 1.1 at 100 mbps
• Police ingress traffic for subinterface port-channel 1.2 at 150 mbps
• Shape egress traffic for subinterface port-channel 1.2 at 50 mbps