FibeAir IP-20C/S/E
User Guide
Ceragon Proprietary and Confidential
Page 198 of 597
7.2
Configuring Classification
The hierarchical classifier consists of the following levels:
Logical interface-level classification
Service point-level classification
Service level classification
This section explains how to configure classification at the logical interface
level.
For instructions how to configure classification at the service point level,
see Ethernet Service Points – Ingress Attributes.
For instructions how to configure classification at the service level, see
Adding an Ethernet Service.
This section includes:
Configuring Ingress Path Classification on a Logical Interface
Modifying the C-VLAN 802.1Q UP and CFI Bit Classification Table
Modifying the S-VLAN 802.1 UP and DEI Bit Classification Table
Modifying the DSCP Classification Table
Modifying the MPLS EXP Bit Classification Table
In addition to the procedures described in this section, you can specify a
specific CoS and Color for a specific VLAN ID. This is the highest classification
priority on the logical interface level, and overrides any other classification
criteria at the logical interface level. Classification by VLAN ID can only be
configured via CLI. See Configuring VLAN Classification and Override (CLI).
7.2.1
Classification Overview
IP-20 supports a hierarchical classification mechanism. The classification
mechanism examines incoming frames and determines their CoS and Color.
The benefit of hierarchical classification is that it provides the ability to “zoom
in” or “zoom out”, enabling classification at higher or lower levels of the
hierarchy. The nature of each traffic stream defines which level of the
hierarchical classifier to apply, or whether to use several levels of the
classification hierarchy in parallel.
Classification takes place on the logical interface level according to the
following priorities:
VLAN ID (CLI-only – see Configuring VLAN Classification and Override
(CLI))
802.1p bits
DSCP bits
MPLS EXP field
Default interface CoS
