Contents
Index

- JunosE 12.1.x Physical Layer Configuration Guide
  - Copyright and Trademark Information
  - Table of Contents
  - List of Figures
  - List of Tables
  - About the Documentation
    - E Series and JunosE Documentation and Release Notes
    - Audience
    - E Series and JunosE Text and Syntax Conventions
    - Obtaining Documentation
    - Documentation Feedback
    - Requesting Technical Support
  - Chapters
    - Configuring Channelized T3 Interfaces
      - Overview
        - MDL/FDL Support
          - MDL Standards
          - FDL Standards
          - Timeout of Received MDL and FDL Messages
          - Frequency of FDL Path Messages
        - Higher-Level Protocols
      - Platform Considerations
        - CT3/T3-F0 Line Modules and CT3/T3 12 I/O Modules
        - Exchanging Modules
        - Interface Stack
        - Numbering Scheme
          - T3 Controllers
          - T1 Channels
          - Fractional T1
          - HDLC Channels
      - References
      - Before You Configure an Interface
      - Configuration Tasks
        - Configuring a T3 Controller
          - Configuring MDL Messages
          - Other Optional Tasks
        - Configuring T1 Channels
          - Optional Tasks
          - Configuring FDL Messages
        - Configuring an HDLC Channel
          - Optional Tasks
      - Configuration Example
      - Testing Interfaces
        - Testing at the T3 Layer
        - Testing at the T1 Layer
      - Monitoring Interfaces
        - Setting a Baseline
        - Displaying Counters and Time Intervals
        - Output Filtering
    - Configuring T3 and E3 Interfaces
      - Overview
        - MDL Support
          - MDL Standards
          - Timeout of Received MDL Messages
        - Higher-Level Protocols
      - Platform Considerations
        - COCX-F3 Line Modules and Associated I/O Modules
        - OCx/STMx/DS3-ATM Line Modules and 4xDs3 ATM I/O Modules
        - CT3/T3-F0 Line Modules and CT3/T3 12 I/O Modules
        - Interface Stack
        - Numbering Scheme
      - References
      - Before You Configure an Interface
      - Configuration Tasks
        - Configuring a T3 or an E3 Controller
          - Configuring MDL Messages
          - Optional Tasks
        - Configuring Fractional T3
        - Configuring an HDLC Channel
          - Optional Tasks
      - Configuration Examples
      - Testing Interfaces
        - Sending BERT Patterns
        - Enabling Local, Network, and Payload Loopback
        - Enabling Remote Loopback
      - Monitoring Interfaces
        - Setting a Baseline
        - Displaying Counters and Time Intervals
        - Output Filtering
    - Configuring Unchannelized OCx/STMx Interfaces
      - Overview
        - APS and MSP
          - Automatic Switchover
          - Manual Switchover
          - Switching Mechanisms
            - Bidirectional Switching Mode
            - Unidirectional Switching Mode
          - Reversion After Switchover
          - Communication Methods
        - Higher-Level Protocols
      - Platform Considerations
        - OCx/STMx/DS3-ATM Line Modules
        - OCx/STMx POS Line Modules
        - OC48 Line Modules
        - OC3/STM1 GE/FE Line Module
        - ES2 4G Line Module
          - E120 Router Configuration
          - E320 Router Configuration
          - OCx/STMx ATM IOAs
          - OCx/STMx POS IOAs
        - Numbering Scheme
          - ERX7xx Models, ERX14xx Models, and the ERX310 Router
          - E120 and E320 Routers
        - Interface Specifier
        - Exchanging Modules
      - References
      - Configuration Tasks
        - Configuring the SONET/SDH Layers
        - Configuring APS/MSP
          - Configuring the Working Interface
          - Configuring the Protect Interface
          - Configuring SONET/SDH Alarms
          - Configuration Example
          - Configuring APS Event Collection
        - Manual Switching to a Redundant Port
      - Testing Interfaces
        - Loopback Testing
        - Testing Connectivity
      - Monitoring SONET/SDH Interfaces
        - Monitoring Interface Statistics
        - Monitoring APS/MSP
    - Configuring Channelized OCx/STMx Interfaces
      - Overview
        - SONET APS and SDH MSP
        - MDL/FDL Support
          - MDL Standards
          - FDL Standards
          - Timeout of Received MDL and FDL Messages
          - Frequency of FDL Path Messages
        - Higher-Level Protocols
      - Platform Considerations
        - cOCx/STMx FO Line Module
        - Interface Stack
          - SONET/SDH VT Controllers
          - T3 Controllers
          - HDLC
        - Numbering Scheme
      - References
      - Before You Configure an Interface
      - Configuration Tasks
        - SONET/SDH Configuration Tasks
          - Configuring Higher Layers
        - T1/E1 Configuration Tasks
          - Configuring an Unframed E1 Line
          - Configuring T1 and E1 Lines
          - Configuring T1 Interfaces to Send FDL Messages
          - Disabling Interfaces and Channel Groups
          - Configuring Higher Layers
        - T3 Configuration Tasks
          - Configuring T3 Line Parameters
          - Configuring T3 Interfaces to Send MDL Messages
          - Configuring T1 Channels on T3 Interfaces
          - Configuring T1 Channels to Send FDL Messages
          - Configuring Higher Layers
        - HDLC Channel Configuration Tasks
          - Optional Tasks
      - Configuration Examples
        - Example 1: Configuring Interfaces in SONET Mode
        - Example 2: Configuring Interfaces in SDH Mode
        - Example 3: Configuring Frame Relay
        - Example 4: Configuring PPP
      - Testing Interfaces
        - Sending BERT Patterns
        - Receiving BERT Patterns
        - Enabling Local or Network Loopback
        - Enabling Remote Loopback Testing
        - Testing Connectivity
      - Monitoring Interfaces
        - Setting a Baseline
        - Output Filtering
        - Monitoring APS/MSP
    - Configuring Ethernet Interfaces
      - Ethernet Overview
        - Features
      - Ethernet Interface Platform Considerations
        - Numbering Scheme
          - ERX7xx Models, ERX14xx Models, and the ERX310 Router
          - E120 and E320 Routers
        - Interface Specifier
      - Fast Ethernet I/O Modules
        - FE-8 I/O Module
        - FE-8 SFP I/O Module
      - Gigabit Ethernet I/O Modules and IOAs
        - GE I/O Module
        - GE-2 SFP I/O Module
          - Ports on GE-2 SFP I/O Module
          - Bandwidth and Line Rate Considerations
        - GE-8 I/O Module
          - Bandwidth and Line Rate Considerations
          - Managing High-Density Ethernet
        - OC3-2 GE APS I/O Module
        - ES2-S1 GE-4 IOA
        - ES2-S1 GE-8 IOA
          - ES2 4G LM Combination
            - Bandwidth and Line Rate Considerations
            - Managing High-Density Ethernet
          - ES2 10G LM Combination
            - Bandwidth and Line Rate Considerations
            - Managing High-Density Ethernet
          - ES2 10G ADV LM Combination
            - Bandwidth and Line Rate Considerations
            - Managing High-Density Ethernet
        - ES2-S3 GE-20 IOA
          - ES2 10G LM Combination
          - Bandwidth and Line Rate Considerations
          - Managing High-Density Ethernet
          - ES2 10G ADV LM Combination
          - Bandwidth and Line Rate Considerations
          - Managing High-Density Ethernet
      - 10-Gigabit Ethernet IOAs
        - ES2-S1 10GE IOA
          - Managing High-Density Ethernet
        - ES2-S2 10GE PR IOA
          - ES2 10G Uplink LM Combination
            - Uplink Operation
            - Multicast
            - L2TP
            - Flow Control and Policy
          - ES2 10G LM Combination
            - Access Operation
            - Multicast
            - Flow Control and Policy
          - ES2 10G ADV LM Combination
            - Access Operation
            - Multicast
            - Flow Control and Policy
      - Ethernet References
      - High-Density Ethernet
      - Managing Port Redundancy on Gigabit Ethernet I/O Modules
      - Configuration Tasks for Ethernet
      - Configuring the Physical Interface
      - Disabling Ethernet Interfaces
      - Monitoring Ethernet Interfaces
        - Setting Statistics Baselines
        - Using Ethernet show Commands
    - Managing Tunnel-Service and IPSec-Service Interfaces
      - Tunnel-Service and IPSec-Service Overview
        - Types of Tunnel-Server Ports
          - Dedicated Tunnel-Server Ports
          - Shared Tunnel-Server Ports
        - Types of Tunnel-Service Interfaces
      - Tunnel-Service Interface Platform Considerations
        - Supported Modules for Dedicated Tunnel-Server Ports
          - ERX7xx Models, ERX14xx Models, and the ERX310 Router
          - E120 and E320 Routers
        - Supported Modules for Shared Tunnel-Server Ports
          - ERX14xx Models and the ERX310 Broadband Services Router
          - E120 and E320 Routers
        - Numbering Scheme
          - ERX7xx Models, ERX14xx Models, and the ERX310 Router
          - E120 and E320 Routers
        - Interface Specifier
        - Supported Applications for Dedicated and Shared Tunnel-Server Ports
      - Redundancy and Interface Distribution of Tunnel-Service Interfaces
        - SMs, ES2-S1 Service IOA, and Shared Tunnel-Server Modules
          - Static IP Tunnel-Service Interfaces
          - Dynamic Tunnel-Service Interfaces
          - Interface Allocation for Shared Tunnel-Server Modules
        - ISMs
      - Tunnel-Service Interface Considerations
        - Provisioning Tunnel-Service Interfaces
          - Bandwidth Limitations of Shared Tunnel-Server Ports
        - Exchanging Tunnel-Server Modules
        - Unprovisioned Tunnel-Service Interfaces
      - Configuring Tunnel-Server Ports and Tunnel-Service Interfaces
        - Identifying the Physical Location of the Tunnel-Server Port
        - Provisioning the Maximum Number of Interfaces on a Tunnel-Server Port
        - Reserving Bandwidth on Shared Tunnel-Server Ports
        - Verifying the Tunnel-Server Interface Configuration
        - Unprovisioning Tunnel-Service Interfaces
      - Monitoring Tunnel-Service Interfaces
  - Index
    - Index

Symbols A B C D E F G H I J K L M N O P R S T U V W X

Symbols

> 10-Gigabit Ethernet interfaces
>   modules
>   specifying an interface
> 4xDS3 ATM I/O modules

A

> Address Resolution Protocol. See ARP
> all option (show controllers) 1, 2
> aps commands See also show aps commands
>   aps events
>   aps force
>   aps group 1, 2
>   aps lockout
>   aps manual
>   aps protect
>   aps revert
>   aps unidirectional
>   aps working
> APS/MSP (Automatic Protect Switching/Multiplex Section Protection)
>   automatic switchover
>   channel numbers 1, 2
>   communication methods
>   configuration example
>   configuring 1, 2
>   events
>   K1 byte
>   K2 byte
>   manual switchover 1, 2
>   monitoring 1, 2
>   overview
>   protect interface 1, 2, 3, 4
>   reversion after switchover
>   switching mechanisms
>   working interface 1, 2, 3, 4
> ARP (Address Resolution Protocol)
> Automatic Protect Switching. See APS/MSP

B

> baseline commands
>   baseline interface
>   baseline interface serial
>     channelized T3 interfaces
>     cOCx/STMx interfaces
>     E3/T3 interfaces
>   baseline line interface sonet 1, 2
>   baseline path interface sonet 1, 2
>   baseline section interface sonet 1, 2
> BERT (bit error rate test) patterns
>   channelized T3 interfaces 1, 2, 3
>   cOCx/STMx interfaces 1, 2, 3
>   E3/T3 interfaces 1, 2
> bert command
>   channelized T3 interfaces
>   E3/T3 interfaces
> bit error rate test patterns. See BERT patterns

C

> cable length
>   specifying 1, 2
> cablelength commands
>   cablelength 1, 2
> cell scrambling
>   E3
>   T3
> channel numbers, APS/MSP interfaces 1, 2
> channel-group commands. See path ds1 | e1 commands
> channelized OCx/STMx interfaces. See cOCx/STMx interfaces
> channelized T3 interfaces
>   bert command
>   configuring 1, 2
>   configuring HDLC channel
>   equipment loopback command
>   loopback command
>   monitoring parameters
>   numbering scheme 1, 2
>   references
>   testing 1, 2
> clock commands
>   clock source
>     channelized T3 interfaces 1, 2
>     cOCx/STMx interfaces 1, 2
>     E3/T3 interfaces 1, 2
>     OCx/STMx interfaces
> clock source, selecting
>   channelized T3 interfaces 1, 2
>   cOCx/STMx interfaces
>   E1 interfaces on cOCx/STMx
>   E3/T3 interfaces
>   OCx/STMx interfaces 1, 2
>   T1 interfaces on cOCx/STMx
>   T3 interfaces on cOCx/STMx
> COCX-F3 line modules
> cOCx/STMx interfaces
>   configuring HDLC channel
>   configuring T1/E1
>   loopback 1, 2, 3, 4
>   monitoring
>   numbering scheme
>   references
>   testing 1, 2
> configuring. See specific feature, product, or protocol
> connectivity in SONET/SDH paths 1, 2
> control traffic for high-density Ethernet
> controller commands
>   controller e3 1, 2
>   controller sonet 1, 2
>   controller t3 1, 2, 3, 4
> conventions
>   notice icons
>   text and syntax
> counters
>   channelized T3 interfaces
>   E3/T3 interfaces
> CRC (cyclic redundancy check)
>   channelized T3 interfaces
>   cOCx/STMx interfaces
>   E3/T3 interfaces
> crc command
>   channelized T3 interfaces
>   cOCx/STMx interfaces
>   E3/T3 interfaces
> CT3/T3 12 I/O modules
> CT3/T3 12 line modules
> CT3/T3-F0 line modules
> customer support
>   contacting JTAC
> cyclic redundancy check. See CRC

D

> data stream inversion, enabling
>   channelized T3 interfaces
>   cOCx/STMx interfaces
>   E3/T3 interfaces
> debounce command
> debounce-interval command
> dedicated tunnel-server ports
>   configuring
>   supported applications
>   supported modules
> description command
>   channelized T3 interfaces
>   E3/T3 interfaces
>   unchannelized SONET interfaces 1, 2
> description, interface
>   channelized T3 interfaces 1, 2
>   cOCx/STMx interfaces 1, 2, 3, 4
>   E3/T3 interfaces
>   serial interfaces 1, 2, 3
>   unchannelized SONET interfaces 1, 2
> Distance Vector Multicast Routing Protocol. See DVMRP tunnels
> documentation set
>   comments on
> DS0 timeslots
>   channelized T3 interfaces
>   cOCx/STMx interfaces 1, 2, 3
> DS1. See T1 entries
> ds3-scramble command
> DS3. See T3 entries
> dsu commands
>   dsu bandwidth
>   dsu mode
> duplex command
> DVMRP tunnels
> dynamic tunnel-server ports
>   applications supported
>   overview
>   unprovisioning
> dynamic tunnel-service interfaces
>   monitoring
>   overview

E

> E1 channels
>   cOCx/STMx interfaces
> E1 interfaces. See cOCx/STMx interfaces
> E120 and E320 Broadband Services Routers
>   Ethernet interfaces
>   tunnel-service interfaces
> E120 Broadband Services Routers 1, 2
> E3 interfaces
>   configuring controllers
>   configuring HDLC channel
>   loopback command
>   monitoring interfaces
>   references
> e3-scramble command
> E320 Broadband Services Routers
>   100 Gbps fabric 1, 2
>   120 Gbps fabric
>   320 Gbps fabric 1, 2
> equipment loopback command
>   channelized T3 interfaces
>   T3 interfaces
> ES2 10G ADV line module (LM)
> ES2 10G line module (LM) 1, 2, 3, 4
> ES2 10G Uplink line module (LM)
> ES2 4G line module (LM) 1, 2, 3, 4
> ethernet description command
> Ethernet interfaces
>   commands See also show commands
>     ethernet description
>     interface fastEthernet
>     interface gigabitEthernet
>     interface tenGigabitEthernet
>   configuring
>   debounce, enabling
>   debounce-interval, modifying
>   disabling interfaces
>   duplex type
>   high-density
>   IEEE 802.3ae 1, 2
>   line speed
>   MAC address validation
>   monitoring
>   numbering scheme 1, 2
> events
>   APS/MSP

F

> facilities data link. See FDL
> Fast Ethernet interfaces
>   modules
>   specifying an interface
> FDL (facilities data link)
>   cOCx/STMx interfaces
>     monitoring statistics
>     T1 channel over DS3, configuring
>     T1 over VT, configuring
>   T1 channels on channelized T3 interfaces
>     configuring
>     monitoring statistics
> filtering
>   show displays 1, 2, 3
> fractional T1/E1
> fractional T3
> framing command
>   channelized T3 interfaces
>   E3/T3 interfaces
> framing format
>   channelized T3 interfaces 1, 2
>   cOCx/STMx interfaces 1, 2
>   E3/T3 line

G

> Generic Routing Encapsulation. See GRE tunnels
> Gigabit Ethernet interfaces
>   modules
>   redundant port 1, 2
>   specifying an interface
> GRE (Generic Routing Encapsulation) tunnels

H

> HDLC channel, configuring
>   channelized T3 interfaces
>   cOCx/STMx interfaces
>   E3/T3 interfaces
> high-density Ethernet
>   overview
>   packet classifier
>   supported modules 1, 2, 3, 4

I

> idle character
>   channelized T3 interfaces
>   cOCx/STMx interfaces 1, 2
>   E3/T3 interfaces
> idle-character command
>   channelized T3 interfaces
>   cOCx/STMx interfaces 1, 2
>   E3/T3 interfaces
> IEEE 802.1w
> IEEE 802.3ae 1, 2
> IEEE 802.3u
> IEEE 802.3z
> intelligent dropping of packets
> interface commands
>   interface fastEthernet
>   interface gigabitEthernet
>   interface serial
>     channelized T3 interfaces
>     cOCx/STMx interfaces
>     E3/T3 interfaces
>   interface tenGigabitEthernet
> interface description
>   channelized T3 interfaces 1, 2
>   cOCx/STMx interfaces 1, 2, 3, 4
>   E3/T3 interfaces
>   serial interfaces 1, 2, 3
>   unchannelized SONET interfaces 1, 2
> interface stack
>   cOCx/STMx interfaces
>   E3/T3 interfaces
>   ES2-21 OC48/STM16 POS
>   OCx/STMx POS interfaces
>   OCx/STMx/DS3-ATM interfaces
> interfaces, monitoring
>   channelized T3
>   cOCx/STMx
>   E3/T3
>   Ethernet
>   OCx/STMx
> internal clocking
>   channelized T3 interfaces
>   cOCx/STMx interfaces 1, 2
>   E1 interfaces 1, 2
>   E3/T3 interfaces
>   OCx/STMx interfaces
>   T1 interfaces 1, 2
> invert data command
>   channelized T3 interfaces
>   cOCx/STMx interfaces
>   E3/T3 interfaces
> ip commands
>   ip mac-validate
> IP tunnels
>   secure 1, 2
> ISMs (IPSec Service modules)
>   monitoring
>   redundancy and interface distribution

J

> Juniper Networks E320 Broadband Services Routers
>   SONET/SDH interfaces

K

> K1 byte, APS/MSP
> K2 byte, APS/MSP

L

> L2TP (Layer 2 Tunneling Protocol)
> L2TP network server. See LNS
> Layer 2 Tunneling Protocol. See L2TP
> line clocking
>   channelized T3 interfaces
>   cOCx/STMx interfaces 1, 2
>   E1interfaces 1, 2
>   E3/T3 interfaces
>   OCx/STMx interfaces
>   T1 interfaces 1, 2
> line modules
>   changing 1, 2
> line speed
> link commands
>   link failover arp-flush
>   link failover force
>   link failover timeout
>   link selection
> LNS (L2TP network server)
>   termination
> load-interval command
>   channelized T3 interfaces
>   E3/T3 interfaces
>   Ethernet interfaces
> local loopback
>   channelized T3 interfaces 1, 2
>   cOCx/STMx interfaces
>   E3/T3 interfaces
>   OCx/STMx interfaces
> loopback
>   channelized T3 interfaces 1, 2
>   cOCx/STMx interfaces 1, 2
>   E3/T3 interfaces
>   T3 interfaces, remote
> loopback command
>   channelized T3 interfaces 1, 2
>   cOCx/STMx interfaces
>   E3/T3 interfaces
>   OCx/STMx interfaces

M

> MAC (media access control) addresses
>   validation
> MAC pause frames
> maintenance data link. See MDL
> manual switchover, APS/MSP
> manuals
>   comments on
> max-interfaces command
> maximum receive unit. See MRU
> maximum transmission unit. See MTU
> MDL (maintenance data link)
>   channelized T3 interfaces
>     configuring
>     monitoring statistics
>   T3 interfaces
>     configuring
>     monitoring statistics
>   T3 on cOCx/STMx interfaces
>     configuring
>     monitoring statistics
> mdl commands
>   mdl carrier 1, 2
>   mdl string 1, 2
>   mdl transmit 1, 2
> monitoring. See specific feature, product, or protocol
> MPLS (Multiprotocol Label Switching)
>   fast reroute 1, 2
> MRU (maximum receive unit)
>   channelized T3 interfaces
>   cOCx/STMx interfaces
>   E3/T3 interfaces
> mru command
>   channelized T3 interfaces
>   cOCx/STMx interfaces
>   E3/T3 interfaces
> MSP
> MSP (Multiplex Section Protection) 1, 2
> MTU (maximum transmission unit)
>   channelized T3 interfaces
>   cOCx/STMx interfaces
>   E3/T3 interfaces
>   Ethernet interfaces
> mtu command
>   channelized T3 interfaces
>   cOCx/STMx interfaces
>   E3/T3 interfaces
>   Ethernet interfaces 1, 2
> Multiplex Section Protection. See APS/MSP
> Multiprotocol Label Switching. See MPLS

N

> network loopback
>   channelized T3 interfaces 1, 2
>   cOCx/STMx interfaces
>   E3/T3 interfaces
>   OCx/STMx interfaces
> notice icons
> numbering scheme
>   ASP/MSP 1, 2
>   slot/adapter/port 1, 2, 3
>   slot/port 1, 2, 3, 4, 5

O

> OC12 I/O modules 1, 2
> OC3-2 GE APS I/O module 1, 2
> OC3-4 I/O modules 1, 2, 3
> OC3/STM1 GE/FE line module 1, 2
> OCx/STMx interfaces
>   configuring 1, 2
>   disabling
>   line modules
>   monitoring statistics
>   numbering scheme
>   path ds3 loopback remote command
>   testing
> OCx/STMx POS line modules 1, 2
> OCx/STMx/DS3-ATM line modules 1, 2

P

> packet classifier
> packets
>   intelligently dropping
> path commands
>   path
>   path description 1, 2
>   path e1 unframed
>   path overhead c2 1, 2
>   path overhead j1 1, 2
>   path snmp trap link-status 1, 2
>   path trigger alarm 1, 2
>   path trigger delay 1, 2
> path ds1 fdl commands
>   path ds1 fdl
>   path ds1 fdl carrier
>   path ds1 fdl transmit
> path ds1 remote-loopback command
> path ds1|e1 commands
>   path ds1|e1
>   path ds1|e1 bert
>   path ds1|e1 channel-group description
>   path ds1|e1 channel-group shutdown
>   path ds1|e1 channel-group snmp trap link-status
>   path ds1|e1 channel-group timeslots
>   path ds1|e1 clock source
>   path ds1|e1 description
>   path ds1|e1 framing
>   path ds1|e1 loopback
>   path ds1|e1 loopback remote
>   path ds1|e1 shutdown
>   path ds1|e1 snmp trap link-status
> path ds3 commands
>   path ds3
>   path ds3 bert
>   path ds3 clock source
>   path ds3 description
>   path ds3 framing
>   path ds3 loopback
>   path ds3 loopback remote
>   path ds3 shutdown
>   path ds3 snmp trap link-status 1, 2
> path ds3 mdl commands
>   path ds3 mdl carrier
>   path ds3 mdl string
>   path ds3 mdl transmit
> path ds3 t1 commands
>   path ds3 t1
>   path ds3 t1 bert
>   path ds3 t1 clock source
>   path ds3 t1 description
>   path ds3 t1 framing
>   path ds3 t1 loopback
>   path ds3 t1 loopback remote
>   path ds3 t1 remote-loopback
>   path ds3 t1 shutdown
>   path ds3 t1 snmp trap link-status
>   path ds3 t1 timeslots
> path ds3 t1 fdl commands
>   path ds3 t1 fdl
>   path ds3 t1 fdl carrier
>   path ds3 t1 fdl transmit
> pause frames
> payload loopback
>   channelized T3 interfaces
>   E3/T3 interfaces
> platform considerations
>   channelized T3 interfaces
>   cOCx/STMx interfaces
>   Ethernet interfaces
>   tunnel-service interfaces
>   unchannelized SONET/SDH interfaces
>   unchannelized T3/E3 interfaces
> ports, tunnel-server
>   shared
> protect interface, APS/MSP 1, 2

R

> redundant port, Gigabit Ethernet 1, 2
> remote loopback
>   channelized T3 interfaces
>   cOCx/STMx interfaces
>   T3 interfaces 1, 2
> reserve-bandwidth command
> reversion
>   after switchover
>     APS/MSP
> RSTP (Rapid Spanning Tree Protocol)

S

> scramble command
> sdh command 1, 2
> section layer, SONET/SDH
> secure IP tunnels 1, 2
> serial description command
>   channelized T3 interfaces
>   cOCx/STMx interfaces
>   E3/T3 interfaces
> serial interfaces
>   configuring
>     channelized T3 interfaces
>     cOCx/STMx interfaces
>     E3/T3 interfaces
>   monitoring
>     channelized T3 interfaces
>     cOCx/STMx
> SFPs (small form-factor pluggable transceivers) 1, 2
> shared tunnel-server ports
>   configuring
>   overview
>   supported applications
>   supported modules
> show aps commands
>   show aps
>   show aps group
> show controllers commands
>   show controllers e3
>   show controllers sonet
>   show controllers sonet configuration
>   show controllers sonet ds1|e1
>   show controllers sonet ds3
>   show controllers sonet line | path | section
>   show controllers sonet line | path | section | tributary
>   show controllers t3 1, 2
>   show controllers t3 ft1
>   show controllers t3 remote 1, 2, 3
>   show controllers t3 serial
> show displays, filtering 1, 2, 3
> show interfaces commands
>   show interfaces fastEthernet
>   show interfaces gigabitEthernet
>   show interfaces serial
>     channelized T3 interfaces
>     cOCx/STMx interfaces
>   show interfaces tenGigabitEthernet
> show tunnel-server command
> shutdown command
>   channelized T3 interfaces
>   E3/T3 interfaces
>   Ethernet interfaces
>   OCx/STMx interfaces
> shutting down
>   DS3
>   E3/T3 interfaces
>   SONET/SDH interface
>   T1 channel 1, 2
>   T1 subchannel 1, 2
>   T1/E1 channel
>   T1/E1 channel group
>   T3 controller
> SMs (Service modules)
>   monitoring
>   redundancy and interface distribution
> SNMP (Simple Network Management Protocol) link status processing
>   channelized T3 interfaces 1, 2
>   cOCx/STMx interfaces 1, 2, 3, 4, 5, 6
>   OCx/STMx interfaces 1, 2
> snmp trap link-status command
>   channelized T3 interfaces
>   cOCx/STMx interfaces
>   OCx/STMx interfaces
> SONET APS 1+1 redundancy. See APS/MSP
> SONET/SDH (synchronous optical network/Synchronous Digital Hierarchy)
>   alarms, configuring
>   line modules supported
>   MPLS fast reroute 1, 2
> source, clock
>   channelized T3 interfaces 1, 2
>   E3/T3 interfaces
>   OCx/STMx interfaces 1, 2
> speed command 1, 2
> static tunnel-service interfaces
>   monitoring
>   overview
> subchannels
>   configuring
>   monitoring
>   shutting down t1
> support, technical See technical support
> switching mechanisms, APS/MSP 1, 2
> switchover
>   APS/MSP
> Synchronous Digital Hierarchy. See SONET/SDH
> synchronous optical network. See SONET/SDH

T

> T1 channels
>   channelized T3 interfaces
>   cOCx/STMx interfaces
>   configuring
> t1 commands
>   t1 bert
>   t1 clock source
>   t1 description
>   t1 framing
>   t1 loopback
>   t1 remote-loopback
>   t1 shutdown
>   t1 snmp trap link-status
>   t1 timeslots
>   t1 yellow detect
>   t1 yellow generate
> t1 fdl commands
>   t1 fdl
>   t1 fdl carrier
>   t1 fdl string
>   t1 fdl transmit
> T3 channels
> T3 controllers
>   configuring
>   monitoring
> T3 interfaces
>   configuring controllers
>   configuring HDLC channel
>   configuring MDL
>   equipment loopback command
>   loopback command
>   monitoring
>   numbering scheme
>   testing
> T3, fractional
> technical support
>   contacting JTAC
> testing interfaces
>   channelized T3 1, 2
>   cOCx/STMx 1, 2
>   OCx/STMx 1, 2
> text and syntax conventions
> threshold command 1, 2
> time intervals 1, 2
> transmit clock source, configuring
>   channelized T3 interfaces 1, 2
>   cOCx/STMx interfaces 1, 2
>   E3/T3 interfaces
>   OCx/STMx interfaces 1, 2
> transmit powers and cable length 1, 2
> trigger delay command
> tunnel-server ports
>   dedicated
>   shared
> tunnel-service interfaces
>   configuring 1, 2
>   considerations
>   E120 and E320 Broadband Services Routers
>   monitoring
>   overview
>   redundancy and interface distribution 1, 2
> tunnels
>   configuring tunnel-service interfaces
>   dynamic tunnel-server ports
>   monitoring
>   secure IP 1, 2

U

> unframed E1

V

> VT (virtual tributary)

W

> working interface, APS/MSP 1, 2

X

> XFPs (10-gigabit small form-factor pluggable transceivers) 1, 2, 3