Cisco 12012 Technické informace stáhnout pdf (Strana 16)

Command Reference

Release 11.2 GS

atm sonet

To set the mode of operation and thus control type of the ATM cell used for cell-rate decoupling on

the SONET PLIM, use the atm sonet interface conﬁguration command. To restore the default

Synchronous Transport Signal level 12, concatenated (STS-12c) operation, use the no form of this

command.

atm sonet [stm-4]

no atm sonet [stm-4]

Syntax Description

Default

STS-12c

Command Mode

Interface conﬁguration

Usage Guidelines

This command was modiﬁed in Cisco IOS Release 11.2 GS to add the stm-4 keyword.

Use STM-4 in applications where SDH framing is required.

Use the default (STS-12c) in applications where the ATM switch requires “unassigned cells” for rate

adaptation. An unassigned cell contains 32 zeros.

Example

The following example sets the mode of operation to SONET STM-4 on ATM interface 3/0:

Router(config)# interface atm 3/0

Router(config-if)# atm sonet stm-4

Router(config-if)# end

Router#

stm-4 (Optional) Synchronous Digital Hierarchy/Synchronous Transport

Signal level 4 (SDH/STM-4) operation (ITU-T speciﬁcation).

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Cisco 12012 Technické informace Strana 16