To enable the router to engage in address registration and callback functions with the Interim Local Management Interface (ILMI), use the atm address-registration command in interface configuration mode. To disable ILMI address registration functions, use the no form of this command.

Syntax Description

This command has no keywords or arguments.

Command Default

If ILMI is configured on a PVC and its host ATM interface, then address registration and callback function enabled on the router by default.

If ILMI is not configured on a PVC and its host ATM interface, then address registration and callback functionality is disabled on the router and must be enabled with the atm address-registration command.

Command Modes

Interface configuration  (config-if)

Usage Guidelines

Note	The atm address-registration command is effective only when an ILMI PVC is created under the physical ATM interface.

To disable Interim Local Management Interface (ILMI) on an ATM interface, use the atm ilmi-config disable command in interface configuration mode. To re-enable ILMI on an ATM interface, use the no form of this command.

Syntax Description

This command has no keywords or arguments.

Command Default

If an ILMI PVC is configured on the ATM interface, then ILMI is automatically enabled on the ATM interface that hosts that PVC.

If an ILMI PVC is not configured on the ATM interface, then ILMI is disabled by default on the ATM interface.

Command Modes

Interface configuration (config-if)

Usage Guidelines

Note	The atm ilmi-config disable command is effective only when an ILMI PVC is created under the physical ATM interface.

Related Commands

To enable Interim Local Management Interface (ILMI) keepalives on an ATM interface and configure keepalive polling frequency, use the atm ilmi-keepalive command in interface configuration mode. To disable ILMI keepalives, use the no form of this command.

Command Default

act-poll-freq frequency: 5

retries count: 4

inact-poll-freq frequency: 1

Command Modes

Interface configuration (config-if)

Usage Guidelines

Note	The atm ilmi-keepalive command is effective only when an ILMI PVC is created under the physical ATM interface.

Related Commands

To disable Interim Local Management Interface (ILMI) trap generation on an ATM interface, use the atm ilmi-trap disable command in interface configuration mode. To reenable ILMI trap generation, use the no form of this command.

Syntax Description

This command has no keywords or arguments.

Command Default

Support for ATM ILMI trap generation is enabled.

Command Modes

Interface configuration (config-if)

Usage Guidelines

Related Commands

To enable support for the 12-bits virtual path identifier (VPI) Network-Node Interface (NNI) cell format, use the atm maxvpi-bits 12 command in interface configuration mode. To disable support for the 12-bits VPI NNI cell format, use the no form of this command.

Syntax Description

This command has no keywords or arguments.

Command Default

Support for the 12-bits VPI NNI cell format is disabled.

Command Modes

Interface configuration (config-if)

Usage Guidelines

Note	Out of the twelve bits, four bits in the ATM UNI cell header are reserved for local standardized generic flow control (GFC).

Related Commands

To define the three Maximum Cell Packing Timeout (MCPT) timers under a main ATM interface, use the atm mcpt-timers command in interface configuration mode. To return the three timers to the default configuration, use the no form of this command.

Command Default

timer-1 : 50

timer-2 : 50

timer-3 : 50

Command Modes

Interface configuration (config-if)

Usage Guidelines

Use the cell-packing command to attach one of the three MCPT timers to an individual L2VPN port, PVC, or PVP. If the associated MCPT timer expires before the maximum number of cells that can be packed is reached, then the packet is transmitted with the number of cells that have been packed thus far.

Note

We recommend configuring a low, medium, and high value for the three MCPT timers to accommodate the different ATM traffic classes. Low- latency CBR traffic typically uses a low MCPT timer value, while high-latency UBR traffic typically requires a high MCPT timer value. VBR-rt and VBR-nrt traffic typically use a median MCPT timer value.

Related Commands

To drop all current and future Operation, Administration, and Maintenance (OAM) cells received on an ATM interface, use the atm oam flush command in interface configuration mode. To receive OAM cells on an ATM interface, use the no form of this command.

Syntax Description

This command has no keywords or arguments.

Command Default

The dropping of OAM cells is disabled.

Command Modes

Interface configuration (config-if)

Usage Guidelines

Related Commands

To configure the maximum number of cells allowed per packet, and specify a Maximum Cell Packing Timeout (MCPT) timer for cell packing, use the cell-packing command in the appropriate mode. To return the interface to the default cell packing configuration, use the no form of this command.

Command Default

If you do not configure the maximum number of cells allowed per packet, only one cell is carried per packet.

Command Modes

ATM layer 2 transport interface configuration  (config-if-l2)

ATM layer 2 transport PVC configuration  (config-atm-l2transport-pvc)

ATM layer 2 transport PVP configuration (config-atm-l2transport-pvp)

Usage Guidelines

Use the atm mcpt-timers command to configure the three MCPT timers under the main ATM interface.

Related Commands

To assign a virtual circuit (VC) class to an ATM main interface, use the class-int command in interface configuration mode. To remove a VC-class, use the no form of this command.

Command Default

No VC-class is assigned to an ATM main interface or subinterface.

Command Modes

Interface configuration (config-if)

Usage Guidelines

When you create a VC-class for an ATM main interface or subinterface, you can use the shape and encapsulation commands to define your parameters.

Parameters that are applied to an individual VC supersede interface- and subinterface-level parameters. Parameters that are configured for a VC through discrete commands entered in interface-ATM-VC configuration mode supersede VC-class parameters assigned to an ATM main interface or subinterface by the class-int command.

Note	This command is not available for Layer 2 interfaces.

Related Commands

To attach a virtual circuit (VC) class to an ATM permanent virtual circuit (PVC), use the class-vc command in ATM PVC configuration mode for a PVC that is configured on an ATM subinterface. To remove a VC-class from a PVC, use the no form of this command.

Command Default

No VC-class is assigned to an ATM PVC.

Command Modes

ATM PVC configuration (config-atm-vc)

Usage Guidelines

When you create a VC-class for an ATM subinterface PVC, you can use the shape and encapsulation commands to define your parameters.

Parameters that are applied to an individual VC supersede PVC-level parameters. Parameters that are configured for a VC through discrete commands entered in interface-ATM-VC configuration mode supersede VC-class parameters assigned to a PVC by the class-vc command.

Note	The class-vc command is available in ATM PVC configuration mode for a PVC that is configured on an ATM subinterface only. This command is not available in ATM PVC configuration mode for an ATM main interface.

Related Commands

To configure the ATM adaptation layer (AAL) and encapsulation type for a virtual circuit (VC) class, ATM permanent virtual circuit (PVC), or ATM permanent virtual path (PVP), use the encapsulation command in the appropriate configuration mode. To remove an encapsulation type, use the no form of this command.

For point-to-point ATM PVCs and vc-classes:

For ATM Layer 2 PVCs:

Command Default

For point-to-point PVCs, the default encapsulation type is aal5snap.

For Layer 2 PVCs, the default encapsulation type is aal5.

Command Modes

ATM PVC configuration  (config-atm-vc)

ATM VC-class configuration  (config-vc-class-atm)

ATM layer 2 transport PVC configuration (config-atm-l2transport-pvc)

Usage Guidelines

Use the aal5mux ipv4 encapsulation option to dedicate the specified PVC to a single protocol; use the aal5snap encapsulation option to multiplex two or more protocols over the same PVC. Whether you select aal5mux ipv4 or aal5snap encapsulation depends on the type of network you are configuring, and the pricing offered by that network. If the pricing of the network depends on the number of PVCs set up, we recommend aal5snap encapsulation. If pricing depends on the number of bytes transmitted, we recommend aal5mux ipv4 encapsulation because it has less overhead than aal5snap and aal5mux ipv4 encapsulation.

If you configure VC-class parameters for a PVC after that PVC is configured, you must enter the shutdown command followed by the no shutdown command on the ATM subinterface that hosts the PVC. This action restarts the interface, causing the newly configured VC-class parameters to take effect on that interface.

Unless specifically configured otherwise, a PVC automatically inherits the encapsulation type of the VC-class that is assigned to the main interface or subinterface that hosts the PVC. If no VC-class is assigned, then the PVC inherits the encapsulation type of the main interface or subinterface that hosts the PVC. If no encapsulation is configured of the main interface or subinterface, then the PVC inherits the default aal5snap encapsulation.

Use the encapsulation command in ATM PVC configuration mode to modify the inherited or default encapsulation assigned to a PVC. You can modify the encapsulation for each individual PVC to be different from the encapsulation configured for the VC-class that is assigned to the ATM main interface or subinterface that hosts the PVC.

If you do not use the encapsulation command to configure the encapsulation type for a new ATM PVC, then the PVC inherits the one of the following default configurations (listed in order of precedence from lowest to highest):

• The encapsulation assigned to the VC-class that is assigned to the PVC itself.
• The encapsulation assigned to the VC-class that is assigned to the ATM subinterface that hosts the PVC.
• The encapsulation assigned to the VC-class that is assigned to the ATM main interface that hosts the PVC
• The default aal5snap encapsulation

When configuring a PVC range or an individual PVC within a PVC range, the following encapsulation types are supported:

• encapsulation aal5mux ipv4
• encapsulation aal5snap

  Note	For Layer 2 PVCs, the default encapsulation type is aal5, and the encapsulation type is not inherited from the VC-class.

Related Commands

To disable the F4 Operations Administration and Maintenance (OAM) packets for a VP-tunnel, enter the f4oam disable command in ATM VP-tunnel configuration mode. To re-enable F4 OAM packets for a VP-tunnel, enter the no form of this command.

Syntax Description

This command has no keywords or arguments.

Command Default

F4 OAM is enabled by default.

Command Modes

ATM Vp-tunnel configuration

Usage Guidelines

Related Commands

To configure an ATM interface and enter ATM interface configuration mode, use the interface atm command in global configuration mode. To delete the interface configuration, use the no form of this command.

Command Default

No interfaces are configured.

Command Modes

Global configuration (config)

Usage Guidelines

The interface command enters interface configuration mode to allow you to configure interfaces. If a virtual interface is configured, then the interface is created if it did not already exist.

When you issue the interface atm command in global configuration mode, the CLI prompt changes to “config-if,” indicating that you have entered interface configuration submode for an ATM interface.

Note	Although the CLI prompt looks the same in the interface configuration mode for an ATM main interface and for an ATM subinterface, the commands that are available under each interface type vary.

In the following sample output, the question mark (?) online help function displays all the commands available under the interface configuration submode for a ATM main interface:

RP/0/0/CPU0:router(config)# interface atm 0/2/0/0
RP/0/0/CPU0:router(config-if)#?

affinity       Affinity to include/exclude
  atm            Global ATM interface configuration subcommands
  bandwidth      Set the bandwidth of an interface
  cdp            Enable CDP on an interface
  class-int      Apply a VC class
  commit         Commit the configuration changes to running
  crypto         Set crypto parameters
  dampening      configure state dampening on the given interface
  describe       Describe a command without taking real actions
  description    Set description for this interface
  do             Run an exec command
  exit           Exit from this submode
  flow           Netflow configuration
  frame-relay    Frame Relay interface configuration commands
  ipv4           IPv4 interface subcommands
  ipv6           IPv6 interface subcommands
  l2transport    Enable Layer 2 transport and enter its configuration submode
  load-interval  Specify interval for load calculation for an interface
  mpls           MPLS interface subcommands
  mtu            Set the MTU on an interface
  no             Negate a command or set its defaults
  pvc            Configure a pvc on this interface
  root           Exit to the global configuration mode
  show           Show contents of configuration
 --More--
  

In the following sample output, the question mark (?) online help function displays all the commands available under the interface configuration submode for a point-to-point ATM subinterface:

RP/0/0/CPU0:router(config)# interface atm 0/2/0/0.1 point-to-point
RP/0/0/CPU0:router(config-if)# ?

  affinity       Affinity to include/exclude
  bandwidth      Set the bandwidth of an interface
  cdp            Enable CDP on an interface
  class-int      Apply a VC class
  commit         Commit the configuration changes to running
  crypto         Set crypto parameters
  dampening      configure state dampening on the given interface
  describe       Describe a command without taking real actions
  description    Set description for this interface
  do             Run an exec command
  exit           Exit from this submode
  flow           Netflow configuration
  frame-relay    Frame Relay interface configuration commands
  ipv4           IPv4 interface subcommands
  ipv6           IPv6 interface subcommands
  load-interval  Specify interval for load calculation for an interface
  logging        Per-interface logging configuration
  mpls           MPLS interface subcommands
  mtu            Set the MTU on an interface
  no             Negate a command or set its defaults
  pvc            Configure a pvc on this interface
  root           Exit to the global configuration mode
  show           Show contents of configuration
  shutdown       shutdown the given interface
 --More--
  

In the following sample output, the question mark (?) online help function displays all the commands available under the interface configuration submode for an ATM Layer 2 subinterface:

RP/0/0/CPU0:router(config)#interface atm 0/2/0/0.1 l2transport
RP/0/0/CPU0:router(config-if)#?

bandwidth      Set the bandwidth of an interface
  cdp            Enable CDP on an interface
  commit         Commit the configuration changes to running
  crypto         Set crypto parameters
  dampening      configure state dampening on the given interface
  describe       Describe a command without taking real actions
  description    Set description for this interface
  do             Run an exec command
  exit           Exit from this submode
  firewall       Configure a Virtual Firewall on this Interface
  flow           Netflow configuration
  frame-relay    Frame Relay interface configuration commands
  ipv4           IPv4 interface subcommands
  ipv6           IPv6 interface subcommands
  load-interval  Specify interval for load calculation for an interface
  logging        Per-interface logging configuration
  mpls           MPLS interface subcommands
  mtu            Set the MTU on an interface
  no             Negate a command or set its defaults
  pvc            Configure a pvc on this interface
  pvp            Configure a pvp on this interface
  pwd            Commands used to reach current submode
  root           Exit to the global configuration mode
  show           Show contents of configuration
  

Cisco IOS XR software supports bulk removal of subinterfaces. To remove several subinterfaces with a single command enter, replace the subinterface argument with an asterisk (*), as shown in the following example:

RP/0/0/CPU0:router(config)# no interface atm 0/6/0/1.* 
  

Note	Before you can perform a bulk removal of several subinterfaces, OAM F5 loopback cell generation must be enabled on the PVCs that are configured under the subinterfaces you want to remove. To enable OAM F5 loopback cell generation on a PVC, use the oam-pvc manage command.

Note	The l2transport keyword is mutually exclusive with any Layer 3 interface configuration.

Related Commands

To enable Layer 2 transport port mode on an ATM interface and enter Layer 2 transport configuration mode, use the l2transport command in interface configuration mode. To disable Layer 2 transport port mode on an ATM interface, use the no form of this command.

Syntax Description

This command has no keywords or arguments.

Command Default

No default behavior or values

Command Modes

Interface configuration (config-if)

Usage Guidelines

When you issue the l2transport command in interface configuration mode, the CLI prompt changes to “config-if-l2,” indicating that you have entered the Layer 2 transport configuration submode. In the following sample output, the question mark (?) online help function displays all the commands available under Layer 2 transport configuration submode for an ATM interface:

RP/0/0/CPU0:router# configure
RP/0/0/CPU0:router(config)# interface atm 0/2/0/0 
RP/0/0/CPU0:router(config-if)# l2transport
RP/0/0/CPU0:router(config-if-l2)# ?

cell-packing    Configure L2VPN cell packing parameters
  commit          Commit the configuration changes to running
  describe        Describe a command without taking real actions
  do              Run an exec command
  exit            Exit from this submode
  no              Negate a command or set its defaults
  pwd             Commands used to reach current submode
  root            Exit to the global configuration mode
  service-policy  Configure QoS Service policy
  show            Show contents of configuration

RP/0/0/CPU0:router(config-if-l2)#

Note	The l2transport command is mutually exclusive with any Layer 3 interface configuration.

Related Commands

To configure the behavior of an ATM permanent virtual circuit (PVC) when it receives Operation, Administration, and Maintenance (OAM) alarm indication signal and remote defect indication (AIS/RDI) cells, use the oam ais-rdi command in ATM PVC configuration or ATM VC-class configuration mode. To return the PVC to the default behavior, use the no form of this command.

Command Default

down-count: 1

up-count: 3

Command Modes

ATM VC-class configuration (config-vc-class-atm)

ATM PVC configuration (config-atm-vc)

Usage Guidelines

Use the oam ais-rdi command to configure the following:

• the maximum number of Operation, Administration, and Maintenance (OAM) alarm indication signals and remote defect indication (AIS/RDI) cells that can be received on a PVC before it is brought down.
• the interval after which a downed PVC comes back up if no OAM AIS/RDI cells have been received.

Use the oam ais-rdi command in ATM PVC configuration mode to configure the OAM AIS/RDI down count and up count for a specific PVC.

Use the oam ais-rdi command in ATM VC-class configuration mode to configure the OAM AIS/RDI down count and up count for all PVCs that are associated with the specified class map.

Keep the following in mind when configuring the OAM AIS/RDI down count and up count:

• Unless specifically configured otherwise, a PVC automatically inherits the OAM AIS/RDI down count and up count of the VC-class that is assigned to the main interface or subinterface that hosts the PVC.
• If the OAM AIS/RDI down count and up count is not configured for the VC-class, or if no VC-class is assigned to the main interface or subinterface that hosts the PVC, or to the PVC itself, then the PVC inherits the default OAM AIS/RDI down count and up count.

The default values for the OAM AIS/RDI down count and up count are used in the following situations:

• If the oam ais-rdi command has not been entered
• If the oam ais-rdi command is entered without the up-count or down-count argument
• If the no oam ais-rdi command is entered

If the oam ais-rdi command is entered without the up-count or down-count argument, the command does not appear in the show running-config command output.

Related Commands

To enable ATM Operation, Administration, and Maintenance (OAM) F5 loopback cell generation and configure continuity check (CC) management for an ATM permanent virtual circuit (PVC), use the oam-pvc manage command in ATM PVC configuration or ATM VC-class configuration mode. To disable OAM F5 continuity checking on a PVC, use the no form of this command.

In ATM PVC configuration mode:

In ATM VC class configuration mode:

Command Default

frequency: 10 seconds

Command Modes

ATM PVC configuration (config-atm-vc)

ATM VC class configuration (config-vc-class-atm)

Usage Guidelines

Keep the following in mind when configuring the OAM F5 loopback cell generation and CC management for an ATM PVC:

• Unless specifically configured otherwise, a PVC automatically inherits the OAM F5 loopback cell management configuration from the VC-class that is assigned to the main interface or subinterface that hosts the PVC.
• If OAM F5 loopback cell generation is not enabled for the assigned VC-class, or if no VC-class is assigned to the PVC itself, or to main interface or subinterface that hosts the PVC, then OAM F5 loopback cell generation is disabled on that PVC. To enable OAM F5 loopback cell generation on that PVC, you need to use the oam-pvc manage command in ATM PVC configuration mode.
• VC-classes support the configuration of the seconds argument only; the keep-vc-up, disable, and seg-aisrdi-failure keywords are available in ATM PVC configuration mode only and are configured directly on each individual PVC.

Related Commands

To configure the number of F5 Operation, Administration, and Maintenance (OAM) loopback cells that need to be successfully transmitted by a down ATM permanent virtual circuit (PVC) before it is brought up, use the oam retry command in ATM PVC configuration or ATM VC-class configuration mode. To return the PVC to the default behavior, use the no form of this command

Command Default

up-count: 3

down-count: 5

retry-frequency: 1 second

Command Modes

ATM PVC configuration (config-atm-vc)

ATM VC-class configuration (config-vc-class-atm)

Usage Guidelines

Keep the following in mind when configuring the OAM AIS/RDI down count and up count:

• Unless specifically configured otherwise, a PVC automatically inherits the OAM AIS/RDI down count and up count of the VC-class that is assigned to the main interface or subinterface that hosts the PVC.
• If no encapsulation is configured for the VC-class, or if no VC-class is assigned to the main interface or subinterface that hosts the PVC, or to the PVC itself, then the PVC inherits the default OAM AIS/RDI down count and up count.

Keep the following in mind when configuring the F5 OAM loopback cell up count, down count, and retry frequency:

• Unless specifically configured otherwise, a PVC automatically inherits the F5 OAM loopback cell up count, down count, and retry frequency of the VC-class that is assigned to the main interface or subinterface that hosts the PVC.
• If the F5 OAM loopback cell up count, down count, and retry frequency are not configured for the VC-class, or if no VC-class is assigned to the PVC itself, or to the main interface or subinterface that hosts the PVC, then the PVC inherits the default F5 OAM loopback cell up count, down count, and retry frequency.

In other words, if the oam retry command is not explicitly configured on an individual PVC, then that PVC inherits the following default configuration (listed in order of precedence):

• F5 OAM loopback cell up count, down count, and retry frequency configured for the VC-class that is assigned to the PVC itself

• F5 OAM loopback cell up count, down count, and retry frequency configured for VC-class assigned to the ATM subinterface that hosts the PVC

• F5 OAM loopback cell up count, down count, and retry frequency configured for the VC-class assigned to the ATM main interface that hosts the PVC

Note	For the defaults, it is assumed that OAM loopback cell generation is enabled on the PCV. To enable OAM F5 loopback cell generation, use the oam-pvc manage command.

Related Commands

To verify connectivity between two ATM connection endpoints through a permanent virtual circuit (PVC) or VP-tunnel, use the ping atm interface atm command in EXEC mode.

Command Default

seconds: 2

Command Modes

EXEC (#)

Usage Guidelines

The following guidelines apply to PVCs and VC-classes.

The ping atm interface atm command sends an OAM packet to verify ATM PVC connectivity. The status of the PVC is displayed when a response to the OAM packet is received. This is a common method for testing the accessibility of the devices.

The ping atm interface atm command is used to determine the following:

• Whether a remote host is active or inactive.
• The round-trip delay in communicating with the host.
• Packet loss.

For the interface-path-id argument, use the following guidelines:

• If specifying a physical interface, the naming notation is rack/slot/module/port. The slash between values is required as part of the notation. An explanation of each component of the naming notation is as follows:

  • rack: Chassis number of the rack.

  • slot: Physical slot number of the line card.

  • module: Module number. A physical layer interface module (PLIM) is always 0.

  • port: Physical port number of the interface.

• If specifying a virtual interface, the number range varies, depending on interface type.

Include the end-loopback packets keyword argument with the ping atm interface atm command to verify end-to-end PVC integrity.

Include the seg-loopback packets keyword argument with the ping atm interface atm command to verify PVC integrity to the immediate neighboring ATM device.

Note	The ping command is not available for Layer 2 ACs.

Related Commands

To create an ATM permanent virtual circuit (PVC) with Interim Local Management Interface (ILMI) encapsulation and enter ATM virtual circuit configuration mode, use the pvc command in interface configuration mode or subinterface configuration mode. To remove an ATM PVC from an interface, use the no form of this command.

In interface configuration mode for a point-to-point ATM main interface:

In interface configuration mode for an ATM subinterface:

Command Default

No PVC is defined.

Command Modes

Interface configuration  (config-if)

Subinterface configuration (config-subif)

Usage Guidelines

The pvc command creates a PVC and attaches it to the specified VPI and VCI. Both the vpi and vci arguments cannot be simultaneously specified as 0; if one is 0, the other cannot be 0.

Cisco IOS XR software dynamically creates rate queues as necessary to satisfy the requests of the PVC commands.

When you issue the pvc command in interface or subinterface configuration mode for a point-to-point ATM main interface, the CLI prompt changes to “config-atm-vc,” indicating that you have entered the ATM virtual circuit configuration submode.

Note	Although the CLI prompt looks the same for the ATM virtual circuit configuration submode under the ATM main interface and the ATM subinterface in point-to-point configurations, the commands that are available under each interface type vary.

When you issue the pvc command in subinterface configuration mode for an ATM AC, the CLI prompt changes to “config-atm-l2transport-pvc,” indicating that you have entered the ATM layer 2 transport PVC configuration submode.

Note	For the 4-Port OC-3 and 4-Port OC-12 line cards, the VCI range is 19 through 65535.

In the following sample output, the question mark (?) online help function displays all the commands available under the ATM virtual circuit configuration submode for the main ATM interface:

RP/0/0/CPU0:router# configure
RP/0/0/CPU0:router(config)# interface atm 0/2/0/0.1 point-to-point
RP/0/0/CPU0:router(config-if)# pvc 10/100
RP/0/0/CPU0:router(config-atm-vc ?

  commit    Commit the configuration changes to running
  describe  Describe a command without taking real actions
  do        Run an exec command
  exit      Exit from this submode
  no        Negate a command or set its defaults
  root      Exit to the global configuration mode

RP/0/0/CPU0:router(config-atm-vc)#
  

In the following sample output, the question mark (?) online help function displays all the commands available under the ATM virtual circuit configuration submode for the ATM subinterface:

RP/0/0/CPU0:router# configure
RP/0/0/CPU0:router(config-if)# interface atm 0/2/0/0.1 point-to-point
RP/0/0/CPU0:router(config-subif)# pvc 20/200
RP/0/0/CPU0:router(config-atm-vc)# ?

  class-vc        Configure vc-class
  commit          Commit the configuration changes to running
  describe        Describe a command without taking real actions
  do              Run an exec command
  encapsulation   Configure encapsulation on this PVC
  exit            Exit from this submode
  no              Negate a command or set its defaults
  oam             Configure ATM OAM VC commands
  oam-pvc         Enter OAM to generate OAM cells
  root            Exit to the global configuration mode
  service-policy  Configure QoS Service policy
  shape           ATM Traffic Shaping
  show            Show contents of configuration

RP/0/0/CPU0:router(config-atm-vc)#
  

In the following sample output, the question mark (?) online help function displays all the commands available under the ATM layer 2 transport PVC configuration submode for the ATM interface:

RP/0/0/CPU0:router# configure
RP/0/0/CPU0:router(config-if)# interface atm 0/2/0/0.1 l2transport
RP/0/0/CPU0:router(config-subif)# pvc 20/200
RP/0/0/CPU0:router(config-atm-l2transport-pvc)# ?

  cell-packing    Configure L2VPN cell packing parameters
  class-vc        Configure vc-class
  commit          Commit the configuration changes to running
  describe        Describe a command without taking real actions
  do              Run an exec command
  encapsulation   Configure encapsulation on this PVC
  exit            Exit from this submode
  no              Negate a command or set its defaults
  oam             Configure ATM OAM VC commands
  oam-ac          Configure L2VPN OAM parameters
  oam-pvc         Enter OAM to generate OAM cells
  pwd             Commands used to reach current submode
  root            Exit to the global configuration mode
  service-policy  Configure QoS Service policy
  shape           ATM Traffic Shaping
  show            Show contents of configuration
  

Related Commands

To create an ATM permanent virtual path (PVP) and enter ATM layer 2 transport PVP configuration mode, use the pvp command in subinterface configuration mode. To remove an ATM PVP from an interface, use the no form of this command.

Command Default

No PVC is defined.

Command Modes

Subinterface configuration (config-subif)

Usage Guidelines

The pvp command creates a PVP and attaches it to the specified VPI.

Cisco IOS XR software dynamically creates rate queues as necessary to satisfy the requests of the PVP commands.

When you issue the pvp command in subinterface configuration mode, the CLI prompt changes to “config-atm-l2transport-pvp,” indicating that you have entered the ATM layer 2 transport PVP configuration submode.

Note	The pvp command is available for layer 2 subinterfaces only.

Note	PVPs do not support a VPI of 0.

In the following sample output, the question mark (?) online help function displays all the commands available under the ATM layer 2 transport PVP configuration submode for the ATM subinterface:

RP/0/0/CPU0:router# configure
RP/0/0/CPU0:router(config-if)# interface atm 0/2/0/0.1 l2transport
RP/0/0/CPU0:router(config-subif)# pvp 20
RP/0/0/CPU0:router(config-atm-l2transport-pvp)# ?

  cell-packing    Configure L2VPN cell packing parameters
  commit          Commit the configuration changes to running
  describe        Describe a command without taking real actions
  do              Run an exec command
  exit            Exit from this submode
  no              Negate a command or set its defaults
  pwd             Commands used to reach current submode
  root            Exit to the global configuration mode
  shape           ATM Traffic Shaping
  show            Show contents of configuration

Related Commands

To configure ATM traffic shaping for a PVC, use the shape command in the appropriate command mode. To remove the configured ATM traffic shaping and return the PVC to using the default constant bit rate (CBR) traffic shaping, use the no form of this command.

Command Default

The default service class for the VC is cbr.

Command Modes

ATM PVC configuration (config-atm-vc)

ATM VC-class configuration (config-vc-class-atm)

ATM Layer 2 transport PVC configuration (config-atm-l2transport-pvc)

ATM Layer 2 transport PVP configuration (config-atm-l2transport-pvp)

ATM VP tunnel configuration mode (config-atm-vp-tunnel)

Usage Guidelines

Related Commands

To display cell packing information for the Layer 2 attachment circuits (ACs) configured on your system, use the show atm cell-packing command in EXEC mode.

Syntax Description

This command has no keywords or arguments.

Command Default

No default behavior or values

Command Modes

EXEC (#)

Usage Guidelines

To display configuration information for the parameters on a virtual circuit (VC) class that is associated with a particular PVC, use the show atm class-link command in privileged EXEC mode.

Command Default

The absence of the slash (/) and a vpi value defaults the vpi value to 0.

Command Modes

EXEC (#)

Usage Guidelines

Note	If a PVC or its host interface is associated with a VC-class, then that PVC inherits all the values configured for that VC-class. If no VC-class is configured for a PVC or its host interface, then the command output displays a message that says “VC class not supported on this VC.”

Related Commands

To display status information that is related to Interim Local Management Interface (ILMI), use the show atm ilmi-status command in EXEC mode.

Command Default

Entering the show atm ilmi-status command without specifying an interface displays ILMI-related status information for all ATM interfaces.

Command Modes

EXEC (#)

Usage Guidelines

Related Commands

To display ATM-specific information about an ATM interface, use the show atm interface atm command in EXEC mode.

Command Default

No default behavior or values

Command Modes

EXEC (#)

Usage Guidelines

Related Commands

To display ATM permanent virtual circuit (PVC) and traffic information for the entire router, or a specific VPI/VCI or ATM interface, use the show atm pvc command in EXEC mode.

Command Default

Entering the show atm pvc command without specifying the vpi/vci argument or interface atm instance keyword argument displays ATM PVC and traffic information for the entire router.

Command Modes

EXEC (#)

Usage Guidelines

Related Commands

To display ATM PVP and traffic information for the entire router, or a specific VPI or ATM interface, use the show atm pvp command in EXEC mode.

Command Default

Entering the show atm pvp command without specifying the vpi argument or interface atm instance keyword argument displays ATM PVP and traffic information for the entire router.

Command Modes

EXEC (#)

Usage Guidelines

Related Commands

To display information about all ATM virtual circuit (VC) classes on the router or for a specific ATM VC-class, use the show atm vc-class command in EXEC mode.

Command Default

Entering the show atm vc-class command without specifying the vc-class-name argument displays ATM PVC and traffic information for the entire router.

Command Modes

EXEC (#)

Usage Guidelines

Related Commands

To display virtual path (VP) tunnel information for the entire router or for a specific interface, use the show atm vp-tunnel command in EXEC mode.

Command Default

Entering the show atm vp-tunnel command without specifying the instance argument displays ATM VP-tunnel information for the entire router.

Command Modes

EXEC

Usage Guidelines

Related Commands

To display information about the physical status of the ATM interface, use the show controllers atm command in EXEC mode.

Command Default

Entering the show controllers atm command without specifying the instance argument displays ATM controller status and configuration information for the entire router.

Command Modes

EXEC (#)

Usage Guidelines

Related Commands

To disable an ATM interface, use the shutdown command in interface configuration mode. To re-enable an ATM interface, use the no form of this command.

Syntax Description

This command has no keywords or arguments.

Command Default

The ATM interface is up.

Command Modes

Interface configuration (config-if)

Usage Guidelines

Use the show interface atm command in EXEC mode to verify that the ATM interface is administratively up or down.

Related Commands

To create a virtual circuit (VC) class for an ATM permanent virtual circuit (PVC) or an ATM interface and enter VC-class configuration mode, use the vc-class atm command in global configuration mode. To remove a VC-class, use the no form of this command.

Command Default

No VC-class is defined.

Command Modes

Global configuration (config)

Usage Guidelines

When you issue the vc-class atm command in global configuration mode, the CLI prompt changes to “config-vc-class-atm,” indicating that you have entered the VC-class configuration submode. In the following sample output, the question mark (?) online help function displays all the commands available under the VC-class configuration submode:

RP/0/0/CPU0:router(config)# vc-class atm classA
RP/0/0/CPU0:router(config-vc-class-atm)# ?

  commit         Commit the configuration changes to running
  describe       Describe a command without taking real actions
  do             Run an exec command
  encapsulation  Configure encapsulation
  exit           Exit from this submode
  no             Negate a command or set its defaults
  oam            Configure OAM parameters
  oam-pvc        OAM PVC management configuration
  shape          ATM Traffic Shaping
  show           Show contents of configuration

RP/0/0/CPU0:router(config-vc-class-atm)#

Related Commands

To configure a virtual path (VP) tunnel on an interface and enter ATM VP-tunnel configuration mode, use the vp-tunnel command in interface configuration mode.

Command Default

No default behavior or values

Command Modes

Interface configuration

Usage Guidelines

For Vp-tunnels, a VPI of 0 is not supported on the following line cards:

• 4-port OC12
• 4-port OC3

When you issue the vp-tunnel command in global configuration mode, the CLI prompt changes to “config-atm-vp-tunnel,” indicating that you have entered ATM VP-tunnel configuration submode. In the following sample output, the question mark (?) online help function displays all the commands available under the ATM VP-tunnel configuration submode:

RP/0/0/CPU0:router(config-if)# vp-tunnel 10
RP/0/0/CPU0:router(config-atm-vp-tunnel)# ?

  commit    Commit the configuration changes to running
  describe  Describe a command without taking real actions
  do        Run an exec command
  exit      Exit from this submode
  f4oam     F4 OAM configuration
  no        Negate a command or set its defaults
  shape     ATM Traffic Shaping
  show      Show contents of configuration

RP/0/0/CPU0:router(config-atm-vp-tunnel)#

Related Commands