Feature History

Lists features supported with the Cisco IOS XE release versions.

Circuit Emulation

Provides the information about CEM classes and parameters, and how to configure them.

CEM pseudowire

Provides information about CEM pseudowire modes and how to configure pseudowires on the interface module of the chassis.

Clock Recovery

Provides information about ACR and DCR for SONET and SDH on SAToP and CESoP, and describes configuration with verification steps.

BERT

Provides information about BERT modes and BERT patterns that are supported on IMs and describes how to configure BERT on SONET and SDH-supported modes.

CEM over MPLS QoS

Provides information about QoS experimental bits (EXP) matching feature and how to classify and mark network traffic using QoS EXP matching feature.

Required Circuit Emulation Configurations

CEM Class

Yes

Yes

NA

NA

Payload Size

Yes

Yes

NA

NA

Dejitter Buffer

Yes

Yes

NA

NA

CEM Pseudowire

Structure- Agnostic TDM over Packet (SATOP) (Framed/Unframed)

Yes

Yes

Yes

Yes

Circuit Emulation over Packet-Switched Network (CESoPSN)

NA

Yes

Yes

Yes

Circuit Emulation over Packet (CEP)

Yes

Yes

Yes

Yes

Clock Recovery Features

Adaptive Clock Recovery

Yes

Yes

Yes

Yes

Differential Clock Recovery

Yes

Yes

Yes

Yes

Network Clock

NA

NA

NA

NA

BERT Features

BERT

Yes

Yes

Yes (only on T3 mode)

NA

BERT Error Injection

Yes

Yes

Yes

NA

CEM over MPLS QoS Support

Classify MPLS Encapsulated Packets

Yes

Yes

Yes

Yes

Mark MPLS EXP on Imposed Labels

Yes

Yes

Yes

Yes