JUNOSe 9.3.x Link Layer Configuration Guide CD Home Techpubs Home Report an Error Collapse TOC List of Figures List of Tables Index Entire manual as PDF		About the Documentation E-series and JUNOSe Documentation and Release Notes Audience E-series and JUNOSe Text and Syntax Conventions Related E-series and JUNOSe Documentation Obtaining Documentation Documentation Feedback Requesting Technical Support Configuring ATM Overview ATM Interfaces ATM Physical Connections ATM Virtual Connections Virtual Channel Connection Virtual Path Connection ATM SVCs ATM Adaptation Layer Local ATM Passthrough VCC Cell Relay Encapsulation Traffic Management Connection Admission Control How CAC Works Configuring CAC CAC and ATM Bulk Configuration ILMI VPI/VCI Address Ranges VP Tunneling Platform Considerations Module Requirements Interface Specifiers References Supported Features Module Capabilities Virtual Channel Support ATM NBMA ARP Table Static Map Versus Inverse ARP Aging Removing Circuits Operations, Administration, and Management of ATM Interfaces End-to-End and Segment Endpoints Fault Management How the ATM Interface Handles AIS Cells How the ATM Interface Handles RDI Cells Continuity Verification Activation and Deactivation Cells Activating CC Cell Flow Deactivating CC Cell Flow After CC Cell Flow Is Enabled Loopback VC Integrity F4 OAM Cells ATM Ping How the ATM Interface Handles Loopback Cells Received Automatic Disabling of F5 OAM Services Rate Limiting for F5 OAM Cells Before You Configure ATM Configuration Tasks Creating a Basic Configuration Setting Optional Parameters Optional Tasks on ATM 1483 Subinterfaces Configuring OAM Configuring F4 OAM Configuring F5 OAM Setting a Loopback Location ID Enabling OAM Flush Running ATM Ping Configuring an NBMA Interface Creating an NBMA Static Map Assigning Descriptions to Interfaces Sending Interface Descriptions to AAA Assigning Descriptions to Virtual Paths Exporting ATM 1483 Subinterface Descriptions Configuring Individual ATM PVC Parameters Benefits Creating Control PVCs Creating Data PVCs Configuring the Service Category for Data PVCs Configuring Encapsulation for Data PVCs Configuring F5 OAM for Data PVCs Configuring Inverse ARP for Data PVCs Configuring ATM VC Classes Benefits Precedence Levels Precedence Levels for Static PVCs Precedence Levels for Dynamic PVCs Precedence Level Examples Upgrade Considerations Configuring VC Classes Assigning VC Classes to Individual PVCs Assigning VC Classes to ATM Major Interfaces Assigning VC Classes to Static ATM 1483 Subinterfaces Assigning VC Classes to Base Profiles for Bulk-Configured VC Ranges Precedence Level Examples for Assigning VC Classes Example 1: Explicitly Changing the Service Category Example 2: Changing the Encapsulation Method in the VC Class Example 3: Effect of Using the atm pvc Command Example 4: Overriding RADIUS Values Configuring Dynamic ATM 1483 Subinterfaces Monitoring ATM Setting Statistics Baselines Displaying Interface Rate Statistics for ATM VCs and ATM VPs Using ATM show Commands Configuring Frame Relay Overview Framing Error Frames Unicast and Multicast Addressing User-to-Network and Network-to-Network Interfaces Platform Considerations Module Requirements Interface Specifiers References Before You Configure Frame Relay Configuring Frame Relay End-to-End Fragmentation and Reassembly Frame Fragmentation Frame Reassembly Map Class Configuring End-to-End Fragmentation Monitoring Frame Relay Configuring Multilink Frame Relay Overview T1/E1 Connections MLFR Link Integrity Protocol Interface Stacking Platform Considerations Module Requirements Interface Specifiers References Supported MLFR Features Unsupported MLFR Features Before You Configure MLFR Configuration Tasks Configuration Example Configuring Frame Relay Versus MLFR Monitoring MLFR Configuring Upper-Layer Protocols over Static Ethernet Interfaces Upper-Layer Protocols over Static Ethernet Overview Upper-Layer Protocols over Static Ethernet Platform Considerations Module Requirements Interface Specifiers Upper-Layer Protocols over Static Ethernet References Configuring IP over a Static Ethernet Interface Configuring PPPoE over a Static Ethernet Interface Configuring IP and MPLS over a Static Ethernet Interface Configuring IP, MPLS, and PPPoE over Ethernet L2TP and Ethernet Multinetting and Ethernet Monitoring Upper-Level Protocols over Ethernet Configuring VLAN and S-VLAN Subinterfaces VLAN Overview S-VLAN Overview VLAN and S-VLAN Platform Considerations Module Requirements Interface Specifiers VLAN and S-VLAN References Creating a VLAN Subinterface Creating a VLAN Major Interface Configuring IP over VLAN Configuring PPPoE over VLAN Configuring MPLS over VLAN Configuring IP over VLAN and PPPoE over VLAN Configuring an S-VLAN Subinterface Configuring an S-VLAN Subinterface Configuring PPPoE over an S-VLAN Configuring S-VLAN Tunnels for Layer 2 Services over MPLS Advantages Interface Stacking Configuration Example S-VLAN Oversubscription Monitoring VLAN and S-VLAN Subinterfaces Displaying Interface Rate Statistics for VLAN Subinterfaces Using Ethernet show Commands Configuring 802.3ad Link Aggregation and Link Redundancy 802.3ad Link Aggregation for Ethernet Overview LACP Higher-Level Protocols Load Balancing and QoS Ethernet Link Aggregation and MPLS 802.3ad Link Aggregation Platform Considerations Module Requirements Interface Specifiers 802.3ad Link Aggregation References Configuring 802.3ad Link Aggregation Configuring an Ethernet Physical Interface Configuring a LAG Bundle Configuring IP for a LAG Bundle Configuring a VLAN Subinterface for a LAG Bundle Configuring a PPPoE Subinterface for a LAG Bundle Configuring MPLS for a LAG Bundle Example: Configuring an IP Interface for a LAG Bundle Example: Configuring a PPPoE Subinterface for a LAG Bundle Example: Configuring a PPPoE Subinterface over a VLAN for a LAG Bundle Example: Configuring MPLS for a LAG Bundle Example: Configuring MPLS over a VLAN for a LAG Bundle Ethernet Link Redundancy Overview Ethernet Link Redundancy Configuration Models Ethernet Link Redundancy Configuration Diagrams Ethernet Link Redundancy Behavior Link Failure and Acquisition Protecting Against Physical Link Failure Protecting Against Virtual Link Failure Reverting After a Failover LACP Configuration and Member Link Behavior Member Link with Non-LAG Partner Ethernet Link Redundancy and RSTP Acquiring Initial Links Detecting Failures Failing Over Configuring Ethernet Link Redundancy Monitoring 802.3ad Link Aggregation Configuring Point-to-Point Protocol Overview Framing Error Frames Link Control Protocol LCP Negotiation Parameters Validation of LCP Peer Magic Number B-RAS Support Authentication Rate Limiting for PPP Control Packets Extensible Authentication Protocol EAP Types EAP Packet Retransmission EAP Behavior in an L2TP Environment When the E-series Router Acts as a LAC When the E-series Router Acts as an LNS Limitations Performance Platform Considerations Module Requirements Interface Specifiers References Before You Configure PPP Configuration Tasks Optional Configuration Tasks Configuring PPP Authentication PPP Accounting Statistics Monitoring PPP Interfaces Troubleshooting Configuring Multilink PPP Overview Application MLPPP LCP Extensions MLPPP Link Selection Platform Considerations Module Requirements Interface Specifiers References Supported MLPPP Features Unsupported MLPPP Features Before You Configure Static MLPPP Configuring Static MLPPP Configuration Example Contextual Command Differences Configuring Authentication Configuring Other PPP Attributes Configuring Dynamic MLPPP Configuring MLPPP Fragmentation and Reassembly Overview Application Supported Configurations Module Requirements Link Configuration Parameters Bundle Validation and Configuration Guidelines Guidelines for MLPPP Fragmentation Guidelines for MLPPP Reassembly Bundle Validation Failure Recovering from Bundle Validation Failure Configuring Fragmentation and Reassembly for Static MLPPP Static MLPPP over ATM 1483 Example Configuring Fragmentation and Reassembly for Dynamic MLPPP Dynamic MLPPP over PPPoE Example Dynamic MLPPP over L2TP Example Configuring Fragmentation and Reassembly for MLPPP Bundles Monitoring MLPPP Configuring Packet over SONET Overview POS Features SONET/SDH Platform Considerations Module Requirements Interface Specifiers References Before You Configure POS Configuration Tasks Monitoring POS Configuring Point-to-Point Protocol over Ethernet Overview PPPoE Stages Discovery Session PPPoE Service Name Tables Features Table Structure Enabling the Table for Use Using the PPPoE Remote Circuit ID to Identify Subscribers Application PPPoE Remote Circuit ID Capture PPPoE Remote Circuit ID Format Remote Circuit ID Delimiter Format for dsl-forum-1 Keyword Format Examples for dsl-forum-1 Keyword Use by RADIUS or L2TP System Event Log PPPoE MTU Configuration Platform Considerations Module Requirements Interface Specifiers References Before You Configure PPPoE Configuring PPPoE over ATM Configuring PPPoE for Ethernet Modules PPPoE Interface and Subinterface Limits Configuring PPPoE Without VLANs Configuring PADM Messages Configuring PADN Messages Configuring PPPoE Service Name Tables Creating and Populating PPPoE Service Name Tables Enabling PPPoE Service Name Tables for Use with Static Interfaces PPPoE over ATM Configurations PPPoE over Ethernet Configurations Enabling PPPoE Service Name Tables for Use with Dynamic Interfaces Configuring PADS Packet Content Configuring PPPoE Remote Circuit ID Capture Monitoring PPPoE Troubleshooting Configuring Bridged IP Overview Proxy ARP DHCP Platform Considerations Module Requirements Interface Specifiers References Before You Configure Bridged IP Configuring Bridged IP Configuring Bridged Ethernet Overview Bridged Ethernet Application Assigning MAC Addresses VLAN and S-VLAN Configurations Platform Considerations Module Requirements Interface Specifiers References Configuring Bridged Ethernet Configuring IP with PPPoE Terminated at the Router Alternative Configuration Configuring VLANs over Bridged Ethernet Configuring VLAN Subinterfaces over Bridged Ethernet Configuring Higher-Level Protocols over VLANs Configuring IP over VLAN Configuring PPPoE over VLAN Configuring MPLS over VLAN Configuring S-VLANs over Bridged Ethernet Configuring S-VLAN Subinterfaces over Bridged Ethernet Configuring Higher-Level Protocols over S-VLANs Configuring the MTU Size for Bridged Ethernet Monitoring Bridged Ethernet Configuring Transparent Bridging Overview How Transparent Bridging Works Bridge Groups and Bridge Group Interfaces Bridge Interface Types and Supported Configurations Subscriber Policies Concurrent Routing and Bridging Transparent Bridging and VPLS Unsupported Features Platform Considerations Module Requirements Interface Specifiers References Before You Configure Transparent Bridging Configuration Tasks Creating Bridge Groups Configuring Optional Bridge Group Attributes Configuring Bridge Group Interfaces Configuring Subscriber Policies Enabling Concurrent Routing and Bridging Configuring Explicit Routing Configuration Examples Example 1: Bridging with Bridged Ethernet Example 2: Bridging with VLANs Monitoring Transparent Bridging Setting Statistics Baselines Removing Dynamic MAC Address Entries Monitoring Bridge Groups Monitoring Bridge Interfaces Monitoring Subscriber Policies Configuring Cisco HDLC Overview Framing Error Frames SLARP Keepalive Platform Considerations Module Requirements Interface Specifiers Before You Configure Cisco HDLC Configuration Tasks Optional Tasks Configuration Example Monitoring Cisco HDLC Configuring Dynamic Interfaces Overview Types of Dynamic Interfaces Autodetection Upper-Layer Dynamic Interface Configurations Profiles RADIUS Authentication ATM Oversubscription for Dynamic Interfaces How Oversubscription Works Static ATM 1483 Subinterfaces Example Bulk-Configured VC Ranges Combination of Static ATM 1483 Subinterfaces and Bulk-Configured VC Ranges Platform Considerations Module Requirements Interface Specifiers References About Configuring Dynamic Interfaces over Static ATM About Configuring RADIUS for Dynamic Interfaces subscriber Command Authenticating Subscribers on Dynamic Bridged Ethernet over Static ATM Interfaces Configuration Method Using subscriber Command Configuration Method Using Subscriber Management Application Placing Dynamic IP Routes in the Routing Table auto-configure Command Encapsulation Type Lockout Benefits How Encapsulation Type Lockout Works Guidelines for Configuring Encapsulation Type Lockout atm pvc Command Configuring PPP and PPPoE Dynamic Interfaces over Static ATM Configuring a PPP or PPPoE Dynamic Interface Terminating Stale PPPoA Subscribers and Restarting LCP Negotiations Configuring PPPoE Dynamic Interfaces over PPPoE Static Interfaces Configuring Dynamic PPPoE over Static PPPoE with ATM Interface Columns Configuring Dynamic PPPoE over Static PPPoE with Ethernet Interface Columns Configuring Dynamic PPPoE over Static PPPoE with Ethernet and VLAN Interface Columns Configuring Dynamic PPPoE over Static PPPoE with Ethernet and S-VLAN Interface Columns S-VLAN Oversubscription Configuring Encapsulation Type Lockout for PPPoE Clients Differences from Lockout Configuration for PPPoE over Static ATM Configuration Tasks Configuring and Verifying Lockout for PPPoE Clients Clearing the Lockout Condition for a PPPoE Client Configuring IPoA Dynamic Interfaces Configuring a Dynamic IPoA Interface Configuring Bridged Ethernet Dynamic Interfaces Configuring a Dynamic Bridged Ethernet Interface Configuring Subscriber Management for IP Subscribers on Dynamic Bridged Ethernet Interfaces Configuration Example Using subscriber Command Equivalent Configuration Example Using IP Subscriber Management Configuring a Dynamic Interface from a Profile Profile Considerations Profile Characteristics Bridged Ethernet Characteristics IP Characteristics IPv6 Characteristics L2TP Characteristics MLPPP and PPP Characteristics PPPoE Characteristics VLAN Characteristics Working with Profiles Configuring a Profile Assigning a Profile to an Interface Profile Configuration Examples Scripts and Macros Monitoring Upper-Layer Dynamic Interfaces and Profiles Troubleshooting PPP and PPPoE Dynamic Interfaces Configuring Dynamic Interfaces Using Bulk Configuration Overview Bulk Dynamic Interface Configurations Profiles ATM Oversubscription for Bulk-Configured VC Ranges Bulk-Configured VC Ranges Example Combination of Static ATM 1483 Subinterfaces and Bulk-Configured VC Ranges Example Platform Considerations Module Requirements Interface Specifiers References Configuring ATM 1483 Dynamic Subinterfaces About Configuring Dynamic ATM 1483 Subinterfaces Overview and Benefits ATM 1483 Base Profiles Nested Profile Assignments Additional Profile Characteristics for Upper Interfaces Bulk Configuration of VC Ranges Bulk Configuration and VC Classes Bulk Configuration and CAC Dynamic Interface Creation Overriding Base Profile Assignments Changing VC Subranges Static ATM Interfaces Within VC Subranges Terminating Stale PPPoA Subscribers and Restarting LCP Negotiations Authenticating Subscribers on Dynamic Bridged Ethernet over Dynamic ATM Interfaces Configuration Method Using atm atm1483 subscriber Command Configuration Method Using Subscriber Management Application Configuring a Dynamic ATM 1483 Subinterface Configuring Overriding Profile Assignments Assigning an Overriding Profile to an ATM PVC Removing an Overriding Profile Assignment from an ATM PVC Removing Overriding Profile Assignments from a VC Range or VC Subrange Changing VC Subranges Adding VC Subranges Removing VC Subranges Modifying VC Subranges Merging VC Subranges Changing the Administrative State of VC Subranges Configuring Static ATM Interfaces Within VC Subranges Creating Static ATM Interfaces Within VC Subranges Creating VC Subranges That Include Static ATM Interfaces Configuring VLAN Dynamic Subinterfaces About Configuring Dynamic VLAN Subinterfaces Overview and Benefits VLAN Base Profiles Nested Profile Assignments Additional Profile Characteristics for Upper Interfaces Bulk Configuration of VLAN Ranges Bulk Configuration of VLAN Ranges Using Agent-Circuit-Identifier Information Dynamic Interface Creation Overriding Base Profile Assignments Changing VLAN Subranges Static VLAN Subinterfaces Within VLAN Subranges Configuring a Dynamic VLAN Subinterface Configuring Dynamic VLAN Subinterfaces Based on Agent Circuit Identifier Information Configuring Overriding Profile Assignments for VLAN Major Interfaces Removing an Overriding Profile Assignment from a VLAN Removing Overriding Profile Assignments from a VLAN Range or VLAN Subrange Changing VLAN Subranges Adding VLAN Subranges Removing VLAN Subranges Modifying VLAN Subranges Merging VLAN Subranges Changing the Administrative State of VLAN Subranges Configuring Static VLAN Subinterfaces Within VLAN Subranges Creating Static VLAN Subinterfaces Within VLAN Subranges Creating VLAN Subranges That Include Static VLAN Subinterfaces Monitoring Dynamic Interfaces and Profiles Index Index