In case more than one flow identification table is assigned, each flow identification
table is related to one virtual port. A flow identification table may also be related to
several virtual ports, provided they are identified by the same virtual port descriptor
(VPD).
Up to 120 flow identification tables are supported per network element.
2. The flow identification tables contain the identification criteria for the flows (“flow
descriptors”).
Possible flow identification criteria (flow descriptors) are:
• The content of the C-tag, i.e. the values of the C-VID and/or C-UP:
C-tag (C-VID; C-UP)
• The value of the IP-TOS (IP type of service) byte
• The MAC destination address (DA)
The possible values of the flow identification criteria are described with the
provisioning procedure for the flow identification tables in the 1643 AM and 1643
AMS User Operations Guide.
Furthermore, the flow identification tables contain a reference identifying the
assigned QoS profile.
3. The QoS profiles contain the provisioning parameters:
• Committed information rate (CIR)
• Peak information rate (PIR)
• Traffic class (TC)
Using this method of QoS provisioning via QoS profiles can be enabled or disabled on
a per-NE basis.
On a per-port basis you can decide to only use default QoS profiles, or to define your
own QoS profiles in order to accomplish flow configuration.
Provisioning defaults
The parameter settings in the default QoS profiles for customer-role and network-role
ports are:
Port role CIR PIR TC
Customer-role MAX MAX 0
Network-role MAX MAX T
The traffic class “T” is the so-called “transparent traffic class”. The p-bits of the
outermost tag (S-UP of the S-tag, or UP of the VLAN tag) remain unchanged, i.e. keep
their value which has been assigned by a data unit anywhere upstream.
Explicit provisioning of the flow identification at network-role ports is only intended in
the case of so called external network-network interfaces (E-NNIs) connecting to the
network of other operators, or to trunking routers, respectively.
Ethernet Overview
Quality of Service provisioning
....................................................................................................................................................................................................................................
365-312-801R7.2
Issue 3, May 2007
Alcatel-Lucent - Proprietary
See notice on first page
11-65
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