Cisco ASR 1000 Series Software Configuration Guide

The following figure shows the following sample configurations for the SPA-1CHOC3-CE-ATM,
SPA-2CHT3-CE-ATM, and SPA-24CHT1-CE-ATM:
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A TDM circuit is connected to port 0 on a SPA installed in slot 1, subslot 0 (T1 controller 1/0/0).
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Two pseudowires (PW10 and PW20) are configured to carry TDM data across the MPLS network.
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Two CEM groups (2 and 3) are configured for the data in the TDM time slots:
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Time slots 1 through 6 are sent over pseudowire 10 to the remote PE router at 10.0.0.0.
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Time slots 8 through 13 are sent to the PE router 11.0.0.0 over pseudowire 20.
Figure 13: TDM Time Slots-to-Pseudowire Mappings
The following table lists the number of CEM groups you can configure for each CEM SPA.
Table 54: Number of CEM Groups Supported for Each Circuit Emulation SPA
Number of Supported CEM GroupsCEoP SPA
5761-Port Channelized OC-3 STM1 ATM CEoP SPA
5762-Port Channelized T3/E3 ATM CEoP SPA
19124-Port Channelized T1/E1 ATM CEoP SPA
Configuration Guidelines and Restrictions
Not all combinations of payload size and dejitter buffer size are supported. Payload size, or dejitter
configurations are rejected at the CLI level in the CEM circuit mode on the SPA, if they are not compatible.
Incompatible parameter modifications (if any), will be rejected, and the configuration will fall back to the old
dejitter and payload parameters if the parameters are being applied through the CEM class template.
Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Software Configuration Guide, Cisco IOS
XE Everest 16.5
498 OL-14127-17
Configuring the Circuit Emulation over Packet Shared Port Adapter
Prerequisites

Cisco ASR 1000 Series Specifications

General

Brand	Cisco
Model	ASR 1000 Series
Category	Network Router
Language	English