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Configuring TDM Services

2-8

309426-14.10 Rev 01

encapsulation_type

is the data encapsulation type that you want the PVC

service record to use.

When configuring a CES H.110 TDM circuit, you must define an ATM

service record that uses null encapsulation.

For example, the following command defines a PVC service record with the

name “ces1422” and that uses null encapsulation on ATM slot 1, pci-slot 1,

module 2, connector 1:

atm/5/1# pvc-service service-name ces1422 encapsulation null

pvc-service/ces1422#

Add an ATM PVC to the PVC service record.

To add a PVC to a PVC service record, navigate to the ATM PVC service

record prompt (for example,

box#;atm/1/1/2/1;pvc-service/ces1422), and

enter:

pvc vpi

<vpi_number>

vci

<vci_number>

vpi_number

identifies the virtual path of the PVC. The header can contain a

maximum of 8 VPI bits for a UNI connection. This bit range allows for path

identifiers from 0 to 255.

vci_number

identifies the virtual channel of the PVC. The header can contain

a maximum of 16 VCI bits. This bit range allows for channel identifiers from

32 to 65535.

For example, the following command adds PVC 32/33 to the configuration on

PVC service record ces1422:

pvc-service/ces1422# pvc vpi 32 vci 33

pvc/32/33#

Set the AAL encapsulation type of the ATM PVC to AAL 1.

To set the AAL encapsulation type to AAL 1, navigate to the ATM PVC

prompt (for example,

box#;atm/1/1/2/1;pvc-service/ces1422;pvc/32/33),

and enter:

aal-type aal1

Set the service category of the ATM PVC to constant bit rate (CBR).

Note:

Following the recommendation of the ATM Forum, virtual channel

identifiers from 0 to 31 are reserved for signaling and added functionality.

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