- Preparing for Broadband Access Aggregation
- Providing Protocol Support for Broadband Access Aggregation of PPPoE Sessions
- PPPoE Session Limit Local Override
- PPPoE Circuit-Id Tag Processing
- Configuring PPP over Ethernet Session Limit Support
- PPP-Max-Payload and IWF PPPoE Tag Support
- PPPoE QinQ Support
- PPPoE Session Limiting on Inner QinQ VLAN
- PPPoE Agent Remote-ID and DSL Line Characteristics Enhancement
- Enabling PPPoE Relay Discovery and Service Selection Functionality
- Configuring Cisco Subscriber Service Switch Policies
- Per Session Queueing and Shaping for PPPoEoVLAN Using RADIUS
- 802.1P CoS Bit Set for PPP and PPPoE Control Frames
- PPPoE Smart Server Selection
- Monitoring PPPoE Sessions with SNMP
- PPPoE on ATM
- PPPoE on Ethernet
- Remote Access MPLS VPNs
- Broadband High Availability Stateful Switchover
- Broadband High Availability In-Service Software Upgrade
- Controlling Subscriber Bandwidth
- PPPoE Service Selection
- Finding Feature Information
- Prerequisites for PPPoE Session Limiting on Inner QinQ VLAN
- Restrictions for PPPoE Session Limiting on Inner QinQ VLAN
- Information About PPPoE Session Limiting on Inner QinQ VLAN
- How to Configure PPPoE Session Limiting on Inner QinQ VLAN
PPPoE Session Limiting on Inner QinQ VLAN
The PPPoE Session Limiting on Inner QinQ VLAN feature allows a service provider to limit each customer to one PPP over Ethernet (PPPoE) client in use by providing the ability to limit the number of PPPoE over QinQ (IEEE 802.1Q VLAN tunnel) sessions based on the inner VLAN ID configured under a subinterface. This capability eliminates the need to configure large numbers of subinterfaces.
- Finding Feature Information
- Prerequisites for PPPoE Session Limiting on Inner QinQ VLAN
- Restrictions for PPPoE Session Limiting on Inner QinQ VLAN
- Information About PPPoE Session Limiting on Inner QinQ VLAN
- How to Configure PPPoE Session Limiting on Inner QinQ VLAN
- Configuration Examples for PPPoE Session Limiting on Inner QinQ VLAN
- Additional References
- Feature Information for PPPoE Session Limiting on Inner QinQ VLAN
Finding Feature Information
Your software release may not support all the features documented in this module. 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 Table at the end of this document.
Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.
Prerequisites for PPPoE Session Limiting on Inner QinQ VLAN
- PPPoE server functionality must be configured.
- The PPPoE over IEEE 802.1Q VLANs feature must be configured.
Restrictions for PPPoE Session Limiting on Inner QinQ VLAN
- Do not configure the inner VLAN session limit to be greater than the outer session limit.
Information About PPPoE Session Limiting on Inner QinQ VLAN
- Benefits of PPPoE Session Limiting on Inner QinQ VLAN
- Feature Design of PPPoE Session Limiting on Inner QinQ VLAN
Benefits of PPPoE Session Limiting on Inner QinQ VLAN
- Facilitates the ability to provision thousands of PPPoE over QinQ sessions having unique inner VLANs using simpler and easier to manage configurations.
- Allows service providers to limit PPPoE sessions based on the QinQ inner VLAN ID.
Feature Design of PPPoE Session Limiting on Inner QinQ VLAN
Prior to the PPPoE Session Limiting on Inner QinQ VLAN feature, PPPoE session limiting required a QinQ subinterface to be configured for each QinQ inner VLAN to be session limited, resulting in configuration requirements that did not scale to large numbers of QinQ VLAN ID pairs. The PPPoE Session Limiting on Inner QinQ VLAN feature adds broadband remote access server (BRAS) capability for configuring a single subinterface for all the unique inner VLAN IDs per outer VLAN while limiting one session per inner VLAN.
The figure below shows a typical implementation of the PPPoE Session Limiting on Inner QinQ VLAN feature.
Figure 1 | PPPoE over QinQ Session Limiting |
How to Configure PPPoE Session Limiting on Inner QinQ VLAN
Configuring PPPoE Session Limiting on Inner QinQ VLAN
Perform this task to configure PPPoE over QinQ session limiting and allows limiting, which allows you to limit the number of QinQ inner VLAN connections for each customer.
DETAILED STEPS
Troubleshooting Tips
The following commands can help troubleshoot PPPoE session limiting:
- debug pppoe error
- show pppoe session
- show pppoe summary
Configuration Examples for PPPoE Session Limiting on Inner QinQ VLAN
PPPoE Session Limiting on Inner QinQ VLAN Example
The following example shows how to enable PPPoE over QinQ session limiting on Fast Ethernet interface 1/0/0.1 with outer VLAN ID 10 and a unique inner VLAN ID for each session.
Router(config)# bba-group pppoe group1 Router(config-bba-group)# virtual-template 1 Router(config-bba-group)# sessions per-vlan limit 1000 inner 1 Router(config)#interface eth1/0/0.1 Router(config-subif)# encapsulation dot1q 10 second-dot1q any Router(config-subif)# enable group group1
Additional References
The following sections provide references related to the PPPoE Session Limiting on Inner QinQ VLAN feature.
Related Documents
Related Topic |
Document Title |
---|---|
Broadband access aggregation concepts |
Cisco IOS XE Broadband Access Aggregation and DSL Configuration Guide |
Broadband access commands |
Cisco IOS Broadband Access Aggregation and DSL Command Reference |
Standards
Standard |
Title |
---|---|
IEEE Standard 802.1Q |
Virtual Bridged Local Area Networks |
MIBs
MIB |
MIBs Link |
---|---|
No new or modified MIBs are supported by this feature. |
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: |
RFCs
RFC |
Title |
---|---|
RFC 2516 |
PPP over Ethernet |
Technical Assistance
Description |
Link |
---|---|
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. |
Feature Information for PPPoE Session Limiting on Inner QinQ VLAN
The following table provides release information about the feature or features described in this module. This table lists only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature.
Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.
Table 1 | Feature Information for PPPoE Session Limiting on Inner QinQ VLAN |
Feature Name |
Releases |
Feature Information |
---|---|---|
PPPoE Session Limiting on Inner QinQ VLAN |
Cisco IOS XE Release 2.1 |
The PPPoE Session Limiting on Inner QinQ VLAN feature provides the ability to limit the number of PPPoE over QinQ, (IEEE 802.1Q VLAN tunnel) sessions based on the inner VLAN ID configured under a subinterface. In 12.2(31)SB2, this feature was introduced on the Cisco 10000 router. The following command was modified by this feature: session per-vlan limit. |
Cisco and the Cisco logo are trademarks or registered trademarks of Cisco and/or its affiliates in the U.S. and other countries. To view a list of Cisco trademarks, go to this URL: www.cisco.com/go/trademarks. Third-party trademarks mentioned are the property of their respective owners. The use of the word partner does not imply a partnership relationship between Cisco and any other company. (1110R)
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.