Configuring Cem - Cisco ASR 1000 Series Software Configuration Manual
Aggregation services routers sip and spa, cisco ios xe everest 16.5
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Also See for ASR 1000 Series:
- Configuration manual (442 pages) ,
- Replacing (120 pages) ,
- Common criteria operational user guidance and preparative procedures (72 pages)
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Configuring the Circuit Emulation over Packet Shared Port Adapter
SUMMARY STEPS
1. Router(config)# controller t3 slot/subslot/port
2. Router(config-controller)# atm
3. Router(config-controller)# scrambling cell-payload
4. Router(config-controller)# exit
DETAILED STEPS
Command or Action
Step 1
Router(config)# controller t3
slot/subslot/port
Step 2
Router(config-controller)# atm
Step 3
Router(config-controller)# scrambling
cell-payload
Step 4
Router(config-controller)# exit
Configuring CEM
This section provides information about how to configure CEM on the SPA-1CHOC3-CE-ATM,
SPA-2CHT3-CE-ATM, and SPA-24CHT1-CE-ATM. The CEM provides a bridge between a time-division
multiplexing (TDM) network and a packet network, such as Multiprotocol Label Switching (MPLS). The
router encapsulates the TDM data in the MPLS packets and sends the data over a CEM pseudowire to the
remote provider edge (PE) router. Thus, functions as a physical communication link across the packet network.
Prerequisites
Prior to configuring CEM on the SPA-1CHOC3-CE-ATM port, SPA-2CHT3-CE-ATM port, and
SPA-24CHT1-CE-ATM port, perform the following steps:
1 Configure one or more CEM groups on the port. Each CEM group represents a set of time slots from the
TDM circuit attached to the port. When you configure a CEM group on the port, the router creates an
interface that has the same slot/subslot/port number as the port (for example, cem 0/1/0).
2 Configure a pseudowire for each CEM group. The router maps the data from the time slots in each group
to its pseudowire and sends the data over the MPLS network to the remote PE router. Use the xconnect
command with encap mpls to create a pseudowire for each CEM group.
OL-14127-17
Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Software Configuration Guide, Cisco IOS XE
Purpose
Selects the T3controller for the port you are configuring, where
slot/subslot identifies the SPA location and port identifies the port.
Configures the port (interface) for the clear-channel ATM. The router
creates an ATM interface whose format is atm /slot /subslot /port ,
where slot /subslot identifies the SPA slot and subslot, and port
identifies the SPA port.
Enables the Scrambling Payload feature on the SPA port.
Returns to the global configuration mode.
Configuring CEM
Everest 16.5
497
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