Cisco Systems OL-4387-02 manual GL-3

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Glossary

P

permanent virtual

A fixed virtual circuit between two users. The public data network equivalent of a leased line. No call

circuit

setup or clearing procedures are needed.

point-to-point

With point-to-point subinterfaces, each pair of routers has its own subnet. If you put the PVC on a

subinterface

point-to-point subinterface, the router assumes that there is only one point-to-point PVC configured on

 

the subinterface. Therefore, any IP packets with a destination IP address in the same subnet are

 

forwarded on this VC. This is the simplest way to configure the mapping and is, therefore, the

 

recommended method.

port

The abstraction used by Internet transport protocols to distinguish among multiple simultaneous

 

connections to a single destination host.

PPP

Point-to-Point Protocol. The successor to SLIP, PPP provides router-to-router and host-to-network

 

connections over both synchronous and asynchronous circuits.

PPPoA

PPP over ATM. Enables a high-capacity central site router with an Asynchronous Transfer Mode

 

(ATM) interface to terminate multiple remote PPP connections.

PPPoE

PPP over Ethernet. Allows a PPP session to be initiated on a simple bridging Ethernet connected client.

 

Refers to a signaling protocol defined within PPPoE as well as the encapsulation method. See also

 

RFC 2516.

PPPoEoA

PPP over Ethernet over ATM. Allows tunneling and termination of PPP sessions over Ethernet links

 

and allows for Ethernet PPP connections over ATM links.

PPPoEoE

PPP over Ethernet over on Ethernet. Allows tunneling and termination of PPP sessions over Ethernet

 

links and allows for Ethernet PPP connections over Ethernet links.

PPPoEo802.1Q

PPP over Ethernet over IEEE 802.1Q VLANs. Allows tunneling and termination of Ethernet PPP

VLAN

sessions across VLAN links. IEEE 802.1Q encapsulation is used to interconnect a VLAN-capable

 

router with another VLAN-capable networking device. The packets on the 802.1Q link contain a

 

standard Ethernet frame and the VLAN information associated with that frame.

PPPoX

PPP over PPPoA or PPPoE or both.

PTA

PPP terminated aggregation. A method of aggregating IP traffic by terminating PPP sessions and

 

aggregating the IP traffic into a single routing domain.

PTA-MD

PTA-Multidomain. A method of aggregating IP traffic by terminating PPP sessions and aggregating the

 

IP traffic into a VPN or multiple IP routing domains. For an ISP, the aggregated traffic either remains

 

in the ISP network or routes to the Internet. For a wholesale provider, the aggregated IP traffic is

 

forwarded to different destinations or domains depending on the service selected; thus the term

 

PTA-Multidomain.

PVC

Permanent virtual circuit or connection. Virtual circuit that is permanently established. PVCs save

 

bandwidth associated with circuit establishment and tear down in situations where certain virtual

 

circuits must exist all the time. In ATM terminology, called a permanent virtual connection. Compare

 

with SVC. See also virtual circuit (VC).

Cisco 10000 Series Router Service Selection Gateway Configuration Guide

 

OL-4387-02

GL-3

 

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Contents Corporate Headquarters Copyright 2004, Cisco Systems, Inc All rights reserved Iii N T E N T SConfiguration Example for SSG AutoDomain Configuration Example for SSG Open Garden Configuration of VPI/VCI Static Binding to a Service Profile Vii SSG UnconfigViii About This Guide AudienceDocument Organization Document Conventions Related Documentation Obtaining DocumentationCisco.com Ordering Documentation Documentation FeedbackObtaining Technical Assistance Documentation CD-ROMXiii Cisco TAC WebsiteOpening a TAC Case TAC Case Priority DefinitionsXiv Obtaining Additional Publications and InformationService Selection Gateway Service Selection Gateway OverviewSSG Topology Example Access Protocols Default NetworkSSG Restrictions Supported SSG FeaturesService Selection Gateway Overview SSG Restrictions SSG Architecture Model SSG PrerequisitesService Selection Gateway Overview SSG Architecture Model OL-4387-02 Limitations and Restrictions Scalability and PerformanceScalability and Performance Limitations and Restrictions SSG Logon and Logoff Single Host LogonPrerequisites for Single Host Logon Configuration of SSG Autologoff SSG AutologoffRestrictions for SSG Autologoff Example 3-2 SSG Autologoff Using Icmp Ping SSG Prepaid Idle TimeoutConfiguration Example for SSG Autologoff Example 3-1 SSG Autologoff Using ARP PingService Reauthorization Service AuthorizationConfiguration Example for SSG Prepaid Idle Timeout Restrictions for SSG Prepaid Idle TimeoutPrerequisites for SSG Prepaid Idle Timeout Configuration of SSG Prepaid Idle TimeoutExample 3-6 SSG Threshold Time SSG Session and Idle TimeoutExample 3-5 SSG Service-Specific TCP Redirect Example 3-7 SSG Threshold VolumeExample 4-1 Radius Freeware Format Example Authentication and AccountingSSG Full Username Radius Attribute Restrictions for SSG Full Username Radius AttributeExample 4-4 Radius Accounting-Stop Record Account Login and LogoutRadius Accounting Records Example 4-3 Radius Accounting-Start RecordService Connection and Termination Authentication and Accounting Radius Accounting Records Service Selection Methods PPP Terminated AggregationPTA-Multidomain Restrictions for PTA-MD Web Service SelectionSesm and SSG Performance OL-4387-02 SSG AutoDomain Service ConnectionConfiguration of SSG AutoDomain Configuration Example for SSG AutoDomainRestrictions for SSG AutoDomain Example 6-1 SSG AutoDomain Example 6-2 AutoDomain Exclude Profile SSG VSA FormatExample 6-3 AutoDomain Exclude File Format Configuration of SSG Prepaid SSG PrepaidRestrictions for SSG Prepaid SSG Open Garden Configuration Example for SSG PrepaidRestrictions for SSG Open Garden Configuration of SSG Open GardenConfiguration Example for SSG Open Garden SSG Port-Bundle Host KeyRestrictions for SSG Port-Bundle Host Key Prerequisites for SSG Port-Bundle Host Key Mutually Exclusive Service SelectionConfiguration of SSG Port-Bundle Host Key Exclude NetworksConfiguration of Mutually Exclusive Service Selection OL-4387-02 Downstream Access Control List Service ProfilesFull Username Upstream Access Control ListService Authentication Type Domain NameService Next-Hop Gateway Service-Defined CookieService Description Service ModeExample 7-1 Service Profile Cached Service ProfilesType of Service Service Profile ExampleConfiguration of Cached Service Profiles OL-4387-02 SSG Hierarchical Policing SSG Hierarchical Policing OverviewSSG Hierarchical Policing Token Bucket Scheme Restrictions for SSG Hierarchical Policing SSG Hierarchical Policing ConfigurationExample 8-2 Enabling Per-Session Policing on a Router Configuration Examples for SSG Hierarchical PolicingOL-4387-02 Transparent Passthrough Interface ConfigurationFor example Access Side InterfacesRestrictions of Transparent Passthrough Configuration of Transparent PassthroughMulticast Protocols on SSG Interfaces Network Side InterfacesConfiguration of Multicast Protocols on SSG Interfaces Redirection for Unauthenticated Users SSG TCP Redirect10-1 10-2 Redirection for Unauthorized Services10-3 Initial Captivation10-4 Configuration of SSG TCP RedirectRestrictions for SSG TCP Redirect Prerequisites for SSG TCP Redirect10-5 Example 10-1 Binding a Server Group to a PortExample 10-2 Limiting Redirected TCP Sessions 10-6 Configuring SSG TCP RedirectExample 10-4 Defining Network Lists Configuration Examples for SSG TCP Redirect10-7 Example 10-3 Defining a Captive Portal Server GroupExample 10-5 Defining Port Lists 10-8Miscellaneous SSG Features VPI/VCI Static Binding to a Service Profile11-1 11-2 AAA Server Group Support for Proxy ServicesConfiguration of Radius Virtual Circuit Logging Radius Virtual Circuit Logging11-3 Packet Filtering11-4 Downstream Access Control List-outaclUpstream Access Control List-inacl Restrictions for Packet FilteringRestrictions for SSG Unconfig SSG UnconfigConfiguration of Packet Filtering Configuration Example for Packet Filtering11-6 Prerequisites for SSG UnconfigConfiguration of SSG Unconfig Configuration Examples for SSG UnconfigSSG Enhancements for Overlapping Services Service Translation11-7 11-8 11-9 Restrictions for Service Translation11-10 Configuration of Service Translation11-11 Expansion of Service IDs11-12 Network Sets12-1 Monitoring and Maintaining SSG12-2 Troubleshooting RadiusPer-Service Statistics Restrictions for Per-Service Statistics12-3 Monitoring the Parallel Express Forwarding Engine12-4 Figure A-1 SSG Example Topology SSG Configuration ExampleUsername cisco password 0 cisco clock timezone PST Example A-1 Cisco 10000 Router SSG ConfigurationSsg accounting interval 300 ssg profile-cache Full-duplex Peer default ip address pool SSG-POOL Exec-timeout 0 0 password lab SSG Implementation Notes SSG Feature Implementation NotesMpls Also see the Restrictions for SSG TCP Redirect section on OL-4387-02 GL-1 O S S a R YGL-2 GL-3 GL-4 GL-5 GL-6 IN-1 D EIN-2 DSL G-1IN-3 ISP G-2 L2TPIN-4 RadiusIN-5 Reauthorizing prepaidIN-6 TCPIN-7 VRF G-5 VSAIN-8
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