Scale Information - Cisco ASR 9000 Series Configuration Manual

QoS on PWHE
• SPI is only supported on PW-Ether subinterfaces. Configuring SPI on PWHE main interface will be
rejected.
• When a policy is applied on PW-Ether subinterface with the SPI, a single instance of the same policy
is created on each pin down member.
• SPI name is unique across all PW-Ether main interfaces and bundle interfaces.

Scale Information

QoS on PWHE supports:
• 8000 PWHE interface per system.
• 1792 PWHE interface per line card (LC).
• 8 physical or bundle interfaces per generic interface list.
• 4096 sub-interfaces per PW-Ether interface.
• 20,000 total subinterfaces per LC.
The scale numbers are supported if configuration is applied properly so that queuing resource is not
Note
exhausted.
Policy Instantiation
The various scenarios of QoS on PWHE are discussed here:
• If any member interface has policies applied to them, only non PWHE traffic will be subjected to those
policies. An exception to this is a configured port shaper.
• QoS policy applied on the PWHE main interface or PWHE subinterface is instantiated on pin-down
member. If the pin-down member is a bundle, then the policy is instantiated on each bundle member .
• The supported policy combinations on PWHE main and subinterfaces for line card (LC) in any mode
are:
• The supported policy combinations on PWHE main and subinterfaces for LC not in the co-existence
mode are:
Cisco ASR 9000 Series Aggregation Services Router Modular Quality of Service Configuration Guide, Release
6.1.x
124
• Non-queuing policy on PWHE main interface and no policy on subinterfaces.
• No policy on PWHE main interface and no policy or non-queuing policy on subinterfaces.
• No policy on PWHE main interface. 2-level queuing policies on subinterface with or without SPI.
• 1, 2, or 3-level queuing policy on PWHE main interface. No policies on subinterface.
• No policy on PWHE main interface. 3-level queuing policies on subinterfaces with or without SPI.
Configuring Modular QoS Service Packet Classification