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    preemption (MobileNext Broadband Gateway)

    Syntax

    preemption {enable;gtpv1-pci-disable;gtpv1-pvi-disable;}

    Hierarchy Level

    [edit unified-edge gateways ggsn-pgw gateway-name]

    Release Information

    Statement introduced in Junos OS Mobility Release 11.2W.

    Description

    Configure whether preemption should be enabled or disabled on the broadband gateway. Preemption aids in call admission control and enables the gateway to accommodate higher priority bearers over the lower priority ones, based on the Preemption Capability Indicator (PCI) and Preemption Vulnerability Indicator (PVI).

    The PCI value defines whether a bearer with a lower allocation and retention priority (ARP) level should be dropped to free the resources required. The PVI value defines whether a bearer is liable to be dropped in favor of a preemption-capable bearer with a higher ARP value.

    Preemption can be applied based on system, memory, CPU, and bearer load and can be configured at the [edit unified-edge cos-cac resource-threshold-profiles] hierarchy level.

    Note: The gtpv1-pci and gtpv1-pvi values are valid only for General Packet Radio Service (GPRS) tunneling protocol version 1 (GTPv1) subscribers.

    Options

    enable

    Enable preemption on the broadband gateway.

    If you do not specify a value, preemption is disabled by default.

    gtpv1-pci-disable

    Disable the preemption capability indicator for GTPv1 subscribers.

    If you do not specify a value, the preemption capability indicator is enabled by default.

    gtpv1-pvi-disable

    Disable the preemption vulnerability indicator for GTPv1 subscribers.

    If you do not specify a value, the preemption vulnerability indicator is enabled by default.

    Required Privilege Level

    interface—To view this statement in the configuration.

    interface-control—To add this statement to the configuration.

     
     

    Published: 2011-11-22