Provisioning Qos Networks Using R Series Modules; Qos Interface Considerations - Avaya 8800 Planning And Engineering

the traffic rate from one department to give critical traffic unlimited access to the network. In a
service provider network, you can control the amount of traffic customers send to ensure that
they comply with their SLA. Policing ensures that users do not exceed their traffic contract for
any given QoS level. Policing (or rate metering) gives the administrator the ability to limit the
amount of traffic for a specific user in two ways:
• drop out-of-profile traffic
• remark out-of-profile traffic to a lower (or higher) QoS level when port congestion occurs
Rate metering can only be performed on a Layer 3 basis.
Traffic shapers buffer and delay violating traffic. These operations occur at the egress queue
set level. The Ethernet Routing Switch 8800/8600 supports traffic shaping at the port level and
at the per-transmit-queue level for outgoing traffic.

Provisioning QoS networks using R series modules

You can use R series module filters (ACLs) in R mode.
When you configure Access Control Templates (ACT), only define the attributes on which to
match if they are absolutely required. Use as few attributes as possible. The more attributes
you configure, the more resource-intensive the filtering action is. If too many attributes are
defined, you may receive error messages about using up memory.

QoS interface considerations

Four QoS interface types are explained in detail in the following sections. You can configure
an interface as trusted or untrusted, and for bridging or routing operations. Use these
parameters to properly apply QoS to network traffic.
QoS interface consideration navigation
• Trusted and untrusted interfaces
• Bridged and routed traffic
• 802.1p and 802.1Q recommendations
Planning and Engineering — Network Design
Provisioning QoS networks using R series modules
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