Foundry NetIron M2404C and M2404F Metro Access Switches
Configuring HQoS (Rev.03)
QoS/HQoS Implementation
© 2008 Foundry Networks, Inc.
Page 29 of 98
NOTE
Multiple SAPs with different service policies configured can be applied with the
same scheduling policy and as a result share the same schedulers (equivalent to
configuring the scheduling policy on a customer-site with multiple SAPs associated
with it).
Allocating Dedicated Resources to Multiple SAPs
Allocating separate queues/schedulers for different SAPs is supported by associating each SAP
with different service/scheduling policies.
Egress Policies for Services with Multiple SAPs
In current product release all SAPs of a specific service (VPLS instance) share the same egress
service and scheduling policy. An egress service/scheduling policy associated with any of the
SAPs in a specific service is automatically applied to the other SAPs of that service.
Relevant Scaling Numbers
•
Max number of service ingress policies – 64.
•
Max number of service egress policies – 64.
•
Max number of scheduling ingress policies instances – 64 (32 if both High and Low priority is
used in each instance).
•
Max number of scheduling egress policies instances – 64 (32 if both High and Low priority is
used in each instance).
Network-related Policies
The platform supports the following Network-related HQoS policies:
•
Network Ingress Policy
o
Applied per Enhanced Uplink Port (up to 2 policies).
o
Defines the mapping of MPLS LSP to the internal FC and Color.
•
Network Egress Policy
o
Applied per Enhanced Uplink Port (up to 2 policies).
o
Defines the mapping of the internal FC and Color to the MPLS EXP to be marked in the
egress packets.
•
Network Queue Policy
o
Applied per Enhanced Uplink Port (up to 2 policies).
o
Defines the mapping of the internal FC to network egress queues.
o
Defines network egress queue parameters, such as WFQ and WRED profiles, shaping
parameters, priority.
Profiles
Profiles are used within HQoS policies. Each profile includes a set of configurable values that can
be applied.
NetIron M2404x supports the following HQoS profile types: