Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?

Navigation
Guide That Contains This Content
[+] Expand All
[-] Collapse All

    Configuring a Base Profile for Dynamic ATM 1483 Subinterface

    This topic includes the following tasks:

    Configuring a Base Profile to Set Up an Advisory Receive Speed for a Dynamic ATM 1483 Subinterface

    You can use the atm atm1483 advisory-rx-speed command to set an advisory receive speed for a dynamic ATM 1483 subinterface created with a base profile. This setting has no effect on data forwarding. It indicates the speed of the client interface. When traffic is tunneled with L2TP, the advisory receive speed is sent from the LAC to the LNS. See LAC Configuration Prerequisites for additional information about the advisory receive speed. The range is 0–2147483647 kbps.

    To set an advisory receive speed for a dynamic ATM 1483 subinterface created with a base profile:

    • Issue the atm atm1483 advisory-rx-speed command in Profile Configuration mode.
    host1(config-profile)#atm atm1483 advisory-rx-speed 2000

    Use the no version to restore the default behavior—the RX speed is not sent to the LNS.

    Specifying the Types of Dynamic Upper-Interface Encapsulations Accepted or Detected by a Dynamic ATM 1483 Subinterface

    You can use the atm atm1483 auto-configure command to specify the types of dynamic upper-interface encapsulations that are accepted or detected by a dynamic ATM 1483 subinterface created with a base profile. For the bridged Ethernet, IP, PPP, and PPPoE encapsulation types, you can optionally specify the lockout time range for the encapsulation type.

    To specify the types of dynamic upper-interface encapsulations for a dynamic ATM 1483 subinterface created with a base profile:

    • Issue the atm atm1483 auto-configure command in Profile Configuration mode.
    host1(config-profile)#atm atm1483 auto-configure ip lockout-time 3600 7200 host1(config-profile)#atm atm1483 auto-configure pppoe

    Use the no version to terminate detection of the specified encapsulation type.

    Configuring a Base Profile to Assign a Text Description for a Dynamic ATM 1483 Subinterface

    You can use the atm atm1483 description command to assign a text description for a dynamic ATM 1483 subinterface created with a base profile. The description can be up to 255 characters.

    To assign a text description for a dynamic ATM 1483 subinterface created with a base profile:

    • Issue the atm atm1483 description command in Profile Configuration mode.
    host1(config-profile)#atm atm1483 description VC_atm1

    Use the no version to remove the text description.

    Adding a Nested Profile Assignment to a Base Profile for a Dynamic ATM 1483 Subinterface

    You can use the atm atm1483 profile command to add a nested profile assignment to a base profile for a dynamic ATM 1483 subinterface. A nested profile assignment references another profile that configures attributes for a dynamic upper-interface type over the ATM 1483 subinterface.

    To add a nested profile assignment to a base profile for a dynamic ATM 1483 subinterface:

    • Issue the atm atm1483 profile command in Profile Configuration mode.
    host1(config-profile)#atm atm1483 profile pppoe atm1483ProfilePppoe

    Use the no version to remove the profile assignment for the upper-interface encapsulation type.

    Configuring a Local Subscriber for a Dynamic Upper-Interface Encapsulation Type Configured over a Dynamic ATM 1483 Subinterface

    You can use the atm atm1483 subscriber command to configure a local subscriber for a dynamic upper-interface encapsulation type configured over a dynamic ATM 1483 subinterface created with a base profile. A subscriber supports authentication and configuration from the RADIUS server.

    When you configure a subscriber, you must specify the following:

    • upperInterfaceType—Type of dynamic interface, bridgedEthernet or ip
    • userNameUsage—How the dynamic interface uses the username for authentication purposes
      • user—Use the name as specified.
      • user-prefix—Use the name as a prefix to the interface physical location. The router automatically postpends the physical location of the user to the username string. The username format is userName.slot.port.vpi.vci. The resulting username string is then used to authenticate the subscriber with the RADIUS server.
    • userName—RADIUS username
    • domainName—Domain name

    You can optionally supply password information:

    • passwordUsage—How the dynamic interface uses the password for authentication purposes
      • password—Use the password as specified.
      • password-prefix—Use the password as a prefix to the interface physical location. The router automatically postpends the physical location of the user to the password string. The password format is password.slot.port.vpi.vci. The resulting password string is then used to authenticate the subscriber with the RADIUS server.
    • password—RADIUS password

    If your router is running stateful SRP switchover (high availability), the use of the atm atm1483 subscriber command to configure RADIUS authentication for subscribers on dynamic bridged Ethernet interfaces might suspend stateful SRP switchover on the router or prevent stateful SRP switchover from becoming active. For more information about using the subscriber management application to bypass this limitation, see Subscriber Authentication on Dynamic Bridged Ethernet over Dynamic ATM Interfaces.

    To configure a local subscriber for a dynamic upper-interface encapsulation type configured over a dynamic ATM 1483 subinterface with a base profile::

    • Issue the atm atm1483 subscriber command in Profile Configuration mode.
    host1(config-profile)#atm atm1483 subscriber ip user-prefix boston01
    domain myisp password-prefix abc123

    Use the no version to remove the subscriber.

    Assigning a Previously Configured VC Class to a Base Profile

    You can use the atm class-vc command to assign a previously configured VC class to a base profile for a dynamic ATM 1483 subinterface. This command applies the set of attributes in the specified VC class to all bulk-configured VC ranges that are dynamically created from this base profile.

    You must issue the exit command from Profile Configuration mode for the VC class association to take effect.

    Note: Changes to a VC class specified in a base profile apply only to those PVCs that are dynamically created after the change is made. These changes do not apply to dynamic PVCs that were created prior to the VC class modification.

    To assign a previously configured VC class to a base profile for a dynamic ATM 1483 subinterface:

    • Issue the atm class-vc command in Profile Configuration mode.
    host1(config-profile)#atm class-vc gold-subscriber-class host1(config-profile)#exit

    Use the no version to remove the VC class association with the base profile.

    Configuring a Base Profile to Apply Encapsulation, Traffic-Shaping and OAM Parameters to a Bulk Range of PVCs Configured on an ATM AAL5 Interface

    You can use the atm pvc command to apply encapsulation, traffic-shaping, and OAM parameters to the range of ATM PVCs configured on an ATM AAL5 interface for use by a dynamic ATM 1483 subinterface created with a base profile.

    You must specify one of the following encapsulation types:

    • aal5autoconfig—Enables autodetection of the 1483 encapsulation (LLC/SNAP or VC multiplexed)
    • aal5snap—Specifies a logical link control (LLC) encapsulated circuit; the LLC/Subnetwork Access Protocol (LLC/SNAP) header precedes the protocol datagram
    • aal5mux ip—Specifies a VC-based multiplexed circuit used for IP only

    You can optionally set the peak, average, and burst sizes. To use VBR-RT or VBR-NRT as the service type, you must specify each of these options.

    The default service type is UBR. To set a different service type, specify one of the following keywords:

    • rt—Selects VBR-RT as the service type; you can select rt only if you set the peak, average, and burst parameters
    • cbr—Selects CBR as the service type; you must set the CBR rate in Kbps

    You can optionally include the oam keyword and a number of seconds in the range 1–600 to enable generation of OAM F5 loopback cells on this circuit. This option enables VC integrity features that affect the operational state of the ATM PVC.

    To apply encapsulation, traffic-shaping, and OAM parameters to the range of ATM PVCs configured on an ATM AAL5 interface for use by a dynamic ATM 1483 subinterface created with a base profile:

    • Issue the atm pvc command in Profile Configuration mode.
    host1(config-profile)#atm pvc aal5autoconfig cbr 10000 oam 120

    Use the no version to restore the default service type, UBR, on the VC range.

    Published: 2014-08-14