Technical data
Table Of Contents
- Preface
- Introduction
- Chapter 1. Advanced Topics
- Chapter 2. Planning For Router Configuration
- Important Terminology
- Collect your Configuration Information
- PPP Link Protocol (over ATM or Frame Relay)
- IP Routing Network Protocol
- IPX Routing Network Protocol
- Bridging Network Protocol
- RFC 1483 / RFC 1490 Link Protocols
- IP Routing Network Protocol
- IPX Routing Network Protocol
- Bridging Network Protocol
- MAC Encapsulated Routing: RFC 1483MER / RFC 1490MER Link Protocols
- IP Routing Network Protocol
- FRF8 Link Protocol
- IP Routing Network Protocol
- Dual Ethernet Router Configuration
- General Information
- Configuring the Dual Ethernet Router as a Bridge
- Configuring the Dual Ethernet Router for IP Routing
- Chapter 3. Configuring Router Software
- Configuration Tables
- Configuring PPP with IP Routing
- Configuring PPP with IPX Routing
- Configuring PPP with Bridging
- Configuring RFC 1483 / RFC 1490 with IP Routing
- Configuring RFC 1483 / RFC 1490 with IPX Routing
- Configuring RFC 1483 / RFC 1490 with Bridging
- Configuring MAC Encapsulated Routing: RFC 1483MER / RFC 1490MER with IP Routing
- Configuring FRF8 with IP Routing
- Configuring Mixed Network Protocols
- Configuring a Dual Ethernet Router for IP Routing
- Verify the Router Configuration
- Sample Configurations
- Sample Configuration 1 — PPP with IP and IPX
- Scenario
- Sample Configuration 1 — Diagram for Target Router (SOHO)
- Sample Configuration 1 — Tables For Target Router (SOHO)
- Sample Configuration 1 - Check the Configuration with the “list” Commands
- Information About Names And Passwords
- Sample Configuration 2 — RFC 1483 with IP and Bridging
- Scenario
- Sample Configuration 2 — Diagram for Target Router SOHO
- Sample Configuration 2 — Tables For Target Router (SOHO)
- Sample Configuration 2 - Check the Configuration with the “list” Commands
- Sample Configuration 3 — Configuring a Dual Ethernet Router for IP Routing
- Scenario
- Configuration Tables
- Chapter 4. Configuring Special Features
- Bridging Filtering and IP Firewall
- IP (RIP) Protocol Controls
- DHCP (Dynamic Host Configuration Protocol)
- General Information
- Manipulating Subnetworks and Explicit Client Leases
- Enabling/disabling a subnetwork or a client lease
- Adding subnetworks and client leases
- Setting the lease time
- Manually changing client leases
- Setting Option Values
- Concepts
- Commands for global option values
- Commands for specific option values for a subnetwork
- Commands for specific option values for a client lease
- Commands for listing and checking option values
- BootP
- About BootP and DHCP
- Enable/Disable BootP
- Use BootP to specify the boot server
- Defining Option Types
- Concepts
- Commands
- Configuring BootP/DHCP Relays
- Other Information
- NAT (Network Address Translation)
- Management Security
- Software Options Keys
- Encryption
- IP Filtering
- L2TP Tunneling - Virtual Dial-Up
- Introduction
- L2TP Concepts
- LNS, L2TP Client, LAC, and Dial User
- L2TP Client Example
- LNS and L2TP Client Relationship
- Tunnels
- Sessions
- Configuration
- Preliminary Steps to Configure a Tunnel
- Verification Steps
- Configuration Commands
- PPP Session Configuration
- Sample Configurations
- Simple L2TP Client Configuration Example
- Complete LNS and L2TP Client Configuration Example
- Configuration Process
- Chapter 5. Command Line Interface Reference
- Command Line Interface Conventions
- System Level Commands
- Router Configuration Commands
- Target Router System Configuration Commands (SYSTEM)
- Target Router Ethernet LAN Bridging and Routing (ETH)
- Remote Router Access Configuration (REMOTE)
- Asymmetric Digital Subscriber Line Commands (ADSL)
- Asynchronous Transfer Mode Commands (ATM)
- Dual Ethernet Router Commands (ETH)
- General information
- High-Speed Digital Subscriber Line Commands (HDSL)
- General information about HDSL
- ISDN Digital Subscriber Line (IDSL)
- General information about IDSL
- Symmetric Digital Subscriber Line Commands (SDSL)
- General information about SDSL
- Dynamic Host Configuration Protocol Commands (DHCP)
- L2TP — Virtual Dial-Up Configuration (L2TP)
- Bridging Filtering Commands (FILTER BR)
- Save Configuration Commands (SAVE)
- Erase Configuration Commands (ERASE)
- File System Commands
- Chapter 6. Managing the Router
- Simple Network Management Protocol (SNMP)
- TELNET Remote Access
- Client TFTP Facility
- TFTP Server
- BootP Server
- Boot Code
- Manual Boot Menu
- Access Manual Boot Mode
- Option 1: Retry Start-up
- Option 2: Boot from FLASH Memory
- Option 3: Boot from Network
- Option 4: Boot from Specific File
- Option 5: Configure Boot System
- Option 6: Set Time and Date
- Option 7: Set Console Baud Rate
- Option 8: Start Extended Diagnostics
- Identifying Fatal Boot Failures
- Software Kernel Upgrades
- Backup and Restore Configuration Files
- FLASH Memory Recovery Procedures
- Recovering Passwords and IP Addresses
- Batch File Command Execution
- Chapter 7. Troubleshooting
- Appendix A. Network Information Worksheets
- Configuring PPP with IP Routing
- Configuring PPP with IPX Routing
- Configuring PPP with Bridging
- Configuring RFC 1483 / RFC 1490 with IP Routing
- Configuring RFC 1483 / RFC 1490 with IPX Routing
- Configuring RFC 1483 / RFC 1490 with Bridging
- Configuring RFC 1483MER / RFC 1490MER with IP Routing
- Configuring FRF8 with IP Routing
- Configuring a Dual Ethernet Router for IP Routing
- Appendix B. Configuring IPX Routing
- Index
178
Symmetric Digital Subscriber Line Commands (SDSL)
The following SDSL commands are used to manage the SDSL link for an SDSL router.
General information about SDSL
Line activation
Line activation is independent of network settings. During activation, the Link light (on the front panel of
the router) is yellow and then turns green when the link becomes active.
The router at the CPE end will try auto-speed detection starting at 384 and try to the next higher speed
(for about 30 seconds per speed). The WAN light should turn yellow, then green when the link has
activated.
Auto-speed detection can be turned off with the
command sdsl speed noauto
. If the line was previously
set to “no auto-speed” (noauto), the Link light will be amber instead, when the line tries to activate.
The IFS command displays the Link as either Off or Opened when successfully activated. Following is a
sample output.
Sample
:
ifs
Interface Speed In % Out % Protocol State
Connection
ETHERNET/0 10.0mb 0%/0% 0%/0% (Ethernet) OPENED
SDSL/0 384kb 0%/0% 0%/0% (ATM) OPENED
CONSOLE/0 9600 b 0%/0% 0%/0% (TTY) OPENED
Auto-speed sequence
Auto-speed start with the lower speed (384) and tries to activate for 30 seconds. If no activation takes
place, the next higher speed is attempted. The time intervals between activation may change if the
modems don’t activate as expected. Following is a correct activation output.
03/09/1998-17:11:59:SDSL: Deactivated
03/09/1998-17:12:22:SDSL: CPE is Activating at 768 Kb/s
03/09/1998-17:13:00:SDSL: Deactivated
03/09/1998-17:13:01:SDSL: CPE is Activating at 1152 Kb/s
03/09/1998-17:13:32:SDSL: Deactivated
03/09/1998-17:13:32:SDSL: CPE is Activating at 1152 Kb/s
03/09/1998-17:14:11:SDSL: Deactivated
03/09/1998-17:14:12:SDSL: CPE is Activating at 384 Kb/s
03/09/1998-17:14:51:SDSL: Activated
03/09/1998-17:14:53:FRAMER: The framer is synchronized
03/09/1998-17:15:19:DOD: connecting to co @ 0*38 over ATM-VC/1
03/09/1998-17:15:35:DOD: link to co over ATM-VC/1 is now up
03/09/1998-17:15:57:SDSL: Line Rate at last activation saved