Local Template-Based ATM PVC Provisioning
First Published: February 3, 2003
Last Updated: November 20, 2009
The Local Template-Based ATM Provisioning feature enables ATM permanent virtual circuits (PVCs) to be provisioned automatically as needed from a local configuration. ATM PVC autoprovisioning can be configured on a PVC, an ATM PVC range, or a VC class. If a VC class configured with ATM PVC autoprovisioning is assigned to an interface, all the PVCs on that interface will be autoprovisioned; this configuration is sometimes referred to as an infinite range.
Finding Feature Information
For the latest feature information and caveats, see the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the "Feature Information for Local Template-Based ATM PVC Provisioning" section.
Use Cisco Feature Navigator to find information about platform support and Cisco IOS XE software image support. To access Cisco Feature Navigator, go to http://www.cisco.com/go/cfn. An account on Cisco.com is not required.
Contents
•
Restrictions for Local Template-Based ATM PVC Provisioning
•
Information About Local Template-Based ATM Provisioning
•
How to Configure Local Template-Based ATM Provisioning
•
Configuration Examples for Local Template-Based ATM Provisioning
•
Additional References
•
Feature Information for Local Template-Based ATM PVC Provisioning
Restrictions for Local Template-Based ATM PVC Provisioning
The number of PVCs that can be established on an interface that is configured as an infinite range is limited to the maximum number of VCs that the platform can support.
Information About Local Template-Based ATM Provisioning
Autoprovisioned ATM PVCs are not created until there is activity on the virtual path identifier (VPI)/virtual channel identifier (VCI) pair. When the interface is disabled and reenabled using the shutdown and no shutdown commands, autoprovisioned PVCs that are part of a PVC range or infinite range are removed upon shutdown and are not reestablished until the first incoming packet triggers PVC creation. During router reload, autoprovisioned PVCs are created when there is activity on the connection.
The total number of VCs that can be configured on an ATM port adapter is limited by the capacity of the port adapter. In cases of ATM link oversubscription, where a PVC range or infinite range is configured to provision more PVCs than the port adapter allows, the PVCs can be configured with a timeout so that they can be dynamically brought down as needed. When the timeout expires, the idle PVCs are removed, allowing the PVC range or infinite range of PVCs to share system resources.
ATM PVC local autoprovisioning supports the following applications: PPP over ATM, ATM routed bridge encapsulation, and routed RFC 1483.
The Local Template-Based ATM Provisioning feature enables ATM PVCs to be created automatically as needed from a local configuration, making the provisioning of large numbers of digital subscriber line (DSL) subscribers easier, faster, and less prone to error.
How to Configure Local Template-Based ATM Provisioning
•
Configuring ATM PVC Local Autoprovisioning in a VC Class (required)
•
Configuring ATM PVC Local Autoprovisioning on a PVC (required)
•
Configuring ATM PVC Local Autoprovisioning on an ATM PVC Range (required)
•
Configuring ATM PVC Local Autoprovisioning on PVC Within a Range (required)
•
Verifying ATM PVC Autoprovisioning (optional)
•
Monitoring and Maintaining ATM PVC Local Autoprovisioning (optional)
Configuring ATM PVC Local Autoprovisioning in a VC Class
To enable ATM PVC local autoprovisioning in a VC class, use the following commands.
SUMMARY STEPS
1.
enable
2.
configure terminal
3.
vc-class atm vc-class-name
4.
create on-demand
5.
idle-timeout seconds [minimum-rate]
6.
end
DETAILED STEPS
|
|
|
Step 1 |
enable
Router> enable |
Enables privileged EXEC mode. • Enter your password if prompted. |
Step 2 |
configure terminal
Router# configure terminal |
Enters global configuration mode. |
Step 3 |
vc-class atm vc-class-name
Router(config)# vc-class atm auto-pppoe |
Creates a VC class for an ATM PVC, SVC, or ATM interface and enters ATM VC class configuration mode. |
Step 4 |
create on-demand
Router(config-vc-class)# create on-demand |
Configures ATM PVC autoprovisioning, which enables a PVC or range of PVCs to be created automatically on demand. |
Step 5 |
idle-timeout seconds [minimum-rate]
Router(config-vc-class)# idle-timeout 300 10 |
(Optional) Configures the idle timeout parameter for tearing down ATM SVC connections or autoprovisioned ATM PVC connections. |
Step 6 |
end
Router(config-vc-class)# end |
(Optional) Exits the ATM VC class configuration mode and returns to privileged EXEC mode. |
A VC class configured with ATM PVC autoprovisioning can be assigned to an ATM interface, an ATM PVC, an ATM PVC range, and an ATM PVC with a range.
Note
If a VC class that is configured with ATM PVC autoprovisioning is assigned to an ATM interface, all PVCs on the interface will be autoprovisioned.
Configuring ATM PVC Local Autoprovisioning on a PVC
To enable ATM PVC local autoprovisioning on a PVC, use the following commands.
SUMMARY STEPS
1.
enable
2.
configure terminal
3.
interface atm slot/subslot/port[.subinterface]
4.
atm autovc retry interval
5.
pvc [name] vpi/vci
6.
create on-demand
7.
idle-timeout seconds [minimum-rate]
8.
end
DETAILED STEPS
|
|
|
Step 1 |
enable
Router> enable |
Enables privileged EXEC mode. • Enter your password if prompted. |
Step 2 |
configure terminal
Router# configure terminal |
Enters global configuration mode. |
Step 3 |
interface atm slot/subslot/port[.subinterface]
Router(config)# interface atm5/0 |
Configures an ATM interface. |
Step 4 |
atm autovc retry interval
Router(config-if)# atm autovc retry 60 |
(Optional) Configures the interval at which the router will repeat the attempt to create autoprovisioned PVCs after a failure of the initial creation attempt. |
Step 5 |
pvc [name] vpi/vci
Router(config-if)# pvc 1/300 |
Creates an ATM PVC and enters ATM virtual circuit configuration mode. |
Step 6 |
create on-demand
Router(config-if-atm-vc)# create on-demand |
Configures ATM PVC autoprovisioning, which enables a PVC or range of PVCs to be created automatically on demand. |
Step 7 |
idle-timeout seconds [minimum-rate]
Router(config-if-atm-vc)# idle-timeout 300 10 |
(Optional) Configures the idle timeout parameter for tearing down ATM SVC connections or autoprovisioned ATM PVC connections. |
Step 8 |
end
Router(config-if-atm-vc)# end |
(Optional) Exits the ATM virtual circuit configuration mode and returns to privileged EXEC mode. |
ATM PVC local autoprovisioning can also be configured on a PVC by assigning a VC class that has been configured with ATM PVC local autoprovisioning to the PVC.
Configuring ATM PVC Local Autoprovisioning on an ATM PVC Range
To enable ATM PVC autoprovisioning on an ATM PVC range, use the following commands.
SUMMARY STEPS
1.
enable
2.
configure terminal
3.
interface atm slot/subslot/port[.subinterface]
4.
atm autovc retry interval
5.
range [range-name] pvc start-vpi/start-vci end-vpi/end-vci
6.
create on-demand
7.
idle-timeout seconds [minimum-rate]
8.
end
DETAILED STEPS
|
|
|
Step 1 |
enable
Router> enable |
Enables privileged EXEC mode. • Enter your password if prompted. |
Step 2 |
configure terminal
Router# configure terminal |
Enters global configuration mode. |
Step 3 |
interface atm slot/subslot/port[.subinterface]
Router(config)# interface atm5/0 |
Configures an ATM interface. |
Step 4 |
atm autovc retry interval
Router(config-if)# atm autovc retry 60 |
(Optional) Configures the interval at which the router will repeat the attempt to create autoprovisioned PVCs after a failure of the initial creation attempt. |
Step 5 |
range [range-name] pvc start-vpi/start-vci end-vpi/end-vci
Router(config-if)# range auto pvc 0/100 1/200 |
Defines a range of ATM PVCs and enters ATM PVC range configuration mode. |
Step 6 |
create on-demand
Router(config-if-atm-range)# create on-demand |
Configures ATM PVC autoprovisioning, which enables a PVC or range of PVCs to be created automatically on demand. |
Step 7 |
idle-timeout seconds [minimum-rate]
Router(config-if-atm-range)# idle-timeout 300 10 |
(Optional) Configures the idle timeout parameter for tearing down ATM SVC connections or autoprovisioned ATM PVC connections. |
Step 8 |
end
Router(config-if-atm-range)# end |
(Optional) Exits the ATM PVC range configuration mode and returns to privileged EXEC mode. |
ATM PVC local autoprovisioning can also be configured on a range by assigning a VC class that has been configured with ATM PVC local autoprovisioning to the range.
Configuring ATM PVC Local Autoprovisioning on PVC Within a Range
To enable ATM PVC autoprovisioning on a PVC within an ATM PVC range, use the following commands.
SUMMARY STEPS
1.
enable
2.
configure terminal
3.
interface atm slot/subslot/port[.subinterface]
4.
atm autovc retry interval
5.
range [range-name] pvc start-vpi/start-vci end-vci/end-vpi
6.
pvc-in-range [pvc-name] [vpi/vci]
7.
create on-demand
8.
idle-timeout seconds [minimum-rate]
9.
end
DETAILED STEPS
|
|
|
Step 1 |
enable
Router> enable |
Enables privileged EXEC mode. • Enter your password if prompted. |
Step 2 |
configure terminal
Router# configure terminal |
Enters global configuration mode. |
Step 3 |
interface atm slot/subslot/port[.subinterface]
Router(config)# interface atm5/0 |
Configures an ATM interface. |
Step 4 |
atm autovc retry interval
Router(config-if)# atm autovc retry 60 |
(Optional) Configures the interval at which the router will repeat the attempt to create autoprovisioned PVCs after a failure of the initial creation attempt. |
Step 5 |
range [range-name] pvc start-vpi/start-vci end-vpi/end-vci
Router(config-if)# range auto pvc 0/100 1/200 |
Defines a range of ATM PVCs and enters ATM PVC range configuration mode. |
Step 6 |
pvc-in-range [pvc-name] [vpi/]vci]
Router(config-if-atm-range)# pvc-in-range 0/101 |
Defines an individual PVC within a PVC range and enables PVC-in-range configuration mode. |
Step 7 |
create on-demand
Router(config-if-atm-range-pvc)# create on-demands |
Configures ATM PVC autoprovisioning, which enables a PVC or range of PVCs to be created automatically on demand. |
Step 8 |
idle-timeout seconds [minimum-rate]
Router(config-if-atm-range-pvc)# idle-time out 300 10 |
(Optional) Configures the idle timeout parameter for tearing down ATM SVC connections or autoprovisioned ATM PVC connections. |
Step 9 |
end
Router(config-if-atm-range-pvc)# end |
(Optional) Exits the PVC-in-range configuration mode and returns to privileged EXEC mode. |
ATM PVC local autoprovisioning can also be configured on a PVC within a range by assigning a VC class that has been configured with ATM PVC local autoprovisioning to the PVC.
Verifying ATM PVC Autoprovisioning
To verify that ATM PVC local autoprovisioning is configured and working correctly, perform the tasks in the following steps:
Step 1
Enter the show running-config command to verify that the configuration is correct.
Step 2
Enter the show atm pvc command. PVCs that have been autoprovisioned will have the value "PVC-A" ("A" stands for automatic) in the Type field.
Interface Name VPI VCI Type Encaps SC Kbps Kbps Cells Sts
5/0.1 117 0 50 PVC-A SNAP UBR 149760 UP
5/0.1 118 0 51 PVC-A SNAP UBR 149760 UP
5/0.1 119 0 52 PVC-A SNAP UBR 149760 UP
Step 3
Enter the show atm pvc command with the vpi/vci arguments to see if ATM PVC local autoprovisioning is configured on a specific PVC. If ATM PVC local autoprovisioning is configured, the text "VC Auto Creation Enabled: local" will appear in the output.
Router# show atm pvc 0/51
ATM5/0.1: VCD: 118, VPI: 0, VCI: 51
AAL5-LLC/SNAP, etype:0x0, Flags: 0x20000C20, VCmode: 0x0
OAM frequency: 0 second(s), OAM retry frequency: 1 second(s), OAM retry frequency: 1
second(s)
OAM up retry count: 3, OAM down retry count: 5
OAM Loopback status: OAM Disabled
OAM VC state: Not Managed
ILMI VC state: Not Managed
InARP frequency: 15 minutes(s)
InPkts: 0, OutPkts: 0, InBytes: 0, OutBytes: 0
InPRoc: 0, OutPRoc: 0, Broadcasts: 0
InFast: 0, OutFast: 0, InAS: 0, OutAS: 0
InPktDrops: 0, OutPktDrops: 0
CrcErrors: 0, SarTimeOuts: 0, OverSizedSDUs: 0, LengthViolation: 0, CPIErrors: 0
F5 InEndloop: 0, F5 InSegloop: 0, F5 InAIS: 0, F5 InRDI: 0
F4 InEndloop: 0, F4 InSegloop: 0, F4 InAIS: 0, F4 InRDI: 0
F5 OutEndloop: 0, F5 OutSegloop: 0, F5 OutRDI: 0
F4 OutEndloop: 0, F4 OutSegloop: 0, F4 OutRDI: 0
PPP: Virtual-Access3 from Virtual-Template1
VC Auto Creation Enabled: local
Monitoring and Maintaining ATM PVC Local Autoprovisioning
To monitor and maintain ATM PVC autoprovisioning, use one or more of the following commands.
SUMMARY STEPS
1.
enable
2.
debug atm autovc {event | error | all}
3.
show atm pvc
4.
show atm vc
DETAILED STEPS
|
|
|
Step 1 |
enable
Router> enable |
Enables privileged EXEC mode. • Enter your password if prompted. |
Step 2 |
debug atm autovc {event | error | all}
Router# debug atm autovc all |
Displays information about autoprovisioned ATM PVC events and errors. |
Step 3 |
show atm pvc
Router# show atm pvc |
Displays all ATM PVCs and traffic information. |
Step 4 |
show atm vc
Router# show atm vc |
Displays all ATM PVCs and SVCs and traffic information. |
Configuration Examples for Local Template-Based ATM Provisioning
•
ATM PVC Local Autoprovisioning on an ATM Interface: Example
•
ATM PVC Local Autoprovisioning on a PVC: Example
•
ATM PVC Local Autoprovisioning on an ATM PVC Range: Example
•
ATM PVC Local Autoprovisioning on a PVC Within a Range: Example
ATM PVC Local Autoprovisioning on an ATM Interface: Example
In the following example, local autoprovisioning is enabled on all PVCs on ATM interface 5/0:
ATM PVC Local Autoprovisioning on a PVC: Example
The following example shows the configuration of local autoprovisioning on a PVC:
ATM PVC Local Autoprovisioning on an ATM PVC Range: Example
The following example shows the configuration of local autoprovisioning on an ATM PVC range called "auto":
range auto pvc 0/100 1/200
ATM PVC Local Autoprovisioning on a PVC Within a Range: Example
The following example shows the configuration of local autoprovisioning on a PVC within a PVC range:
range auto pvc 0/100 1/200
Additional References
Related Documents
Standards
MIBs
|
|
None |
To locate and download MIBs for selected platforms, Cisco IOS XE software releases, and feature sets, use Cisco MIB Locator found at the following URL: http://www.cisco.com/go/mibs |
RFCs
|
|
RFC 1483 |
Multiprotocol Encapsulation over ATM Adaptation Layer |
Technical Assistance
|
|
The Cisco Support website provides extensive online resources, including documentation and tools for troubleshooting and resolving technical issues with Cisco products and technologies. To receive security and technical information about your products, you can subscribe to various services, such as the Product Alert Tool (accessed from Field Notices), the Cisco Technical Services Newsletter, and Really Simple Syndication (RSS) Feeds. Access to most tools on the Cisco Support website requires a Cisco.com user ID and password. |
http://www.cisco.com/cisco/web/support/index.html |
Feature Information for Local Template-Based ATM PVC Provisioning
Table 1 lists the features in this module and provides links to specific configuration information.
Use Cisco Feature Navigator to find information about platform support and software image support. Cisco Feature Navigator enables you to determine which Cisco IOS XE software images support a specific software release, feature set, or platform. To access Cisco Feature Navigator, go to http://www.cisco.com/go/cfn. An account on Cisco.com is not required.
Note
Table 1 lists only the Cisco IOS XE software release that introduced support for a given feature in a given Cisco IOS XE software release train. Unless noted otherwise, subsequent releases of that Cisco IOS XE software release train also support that feature.
Table 1 Feature Information for Local Template-Based ATM PVC Provisioning
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|
|
Local Template-Based ATM PVC Provisioning |
Cisco IOS XE Release 2.5 |
This feature was introduced on Cisco ASR 1000 Series Aggregation Services Routers. The Local Template-Based ATM Provisioning feature enables ATM permanent virtual circuits (PVCs) to be provisioned automatically as needed from a local configuration. The following sections provide information about this feature: • "Information About Local Template-Based ATM Provisioning" section • "How to Configure Local Template-Based ATM Provisioning" section The following commands were introduced or modified: atm autovc retry, create on-demand, debug atm autovc, idle-timeout. |
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Any Internet Protocol (IP) addresses and phone numbers used in this document are not intended to be actual addresses and phone numbers. Any examples, command display output, network topology diagrams, and other figures included in the document are shown for illustrative purposes only. Any use of actual IP addresses or phone numbers in illustrative content is unintentional and coincidental.
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