JUNOSe 9.1.x Link Layer Configuration Guide

About This Guide
Objectives
Audience
E-series Routers
Documentation Conventions
Related E-series and JUNOSe Documentation
E-series and JUNOSe Documents
JUNOSe Configuration Guides
Obtaining Documentation
Documentation Feedback
Requesting Technical Support
Self-Help Online Tools and Resources
Opening a Case with JTAC
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
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 a 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
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
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
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
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
Placing Dynamic IP Routes in the Routing Table
auto-configure Command
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
Combination of Static ATM 1483 Subinterfaces and Bulk-Configured VC Ranges
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
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