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# atm cell-packing

#### Syntax

atm cell-packing maxCellsPerPacket mcpt-timer timerIdentifier

no atm cell-packing

#### Release Information

Command introduced before JUNOSe Release 7.1.0.

#### Description

Configures cell concatenation parameters for an ATM 1483 subinterface that provides ATM layer 2 services over MPLS with virtual channel connection (VCC) cell relay encapsulation. The no version restores the default cell concatenation parameters for the subinterface.

| Note: See the atm mcpt-timers command for information about configuring systemwide values for the three ATM Martini cell packing timers to define the cell collection time threshold.

#### Options

- maxCellsPerPacket—Maximum number of ATM cells in the range 1–190 that the router can concatenate in a single VCC cell relay–encapsulated packet and transmit on an MPLS pseudowire connection; default value is 1 cell per packet
- timerIdentifier—Integer in the range 1–3 that identifies which of the three ATM Martini cell packing timers (timer 1, timer 2, or timer 3) you want to use to detect timeout of the cell collection time threshold; default value is 1. When the timer expires, the router forwards the packet even if the number of concatenated ATM cells in the packet is fewer than the specified maximum number of cells per packet.

#### Mode

Subinterface Configuration

#### Related Topics

- Configuring an MPLS Pseudowire with VCC Cell Relay Encapsulation in the JUNOSe BGP and MPLS Configuration Guide

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