DSL és egyéb hibák üzenetei
http://www.cisco.com/en/US/docs/ios/12_3/sem1/system/messages/emgdscre.html
Cisco IOS System Messages
http://www.cisco.com/en/US/docs/ios/12_3/sem1/system/messages/123semv1.html
Synchronous Digital Hierarchy (SDH) Graphical Overview
http://www.cisco.com/en/US/tech/tk482/tk876/technologies_tech_note09186a008011927d.shtml
ATM Control Cells Illustrated
http://www.cisco.com/en/US/tech/tk39/tk49/technologies_tech_note09186a00801111e2.shtml
Framing Formats on ATM DS-3 and E3 Interfaces
http://www.cisco.com/en/US/tech/tk39/tk49/technologies_tech_note09186a0080093c89.shtml
ATM Network Slow Performance
http://www.cisco.com/en/US/tech/tk39/tk371/technologies_tech_note09186a00802878e7.shtml
Framing Formats on ATM DS-3 and E3 Interfaces
http://www.cisco.com/en/US/tech/tk39/tk49/technologies_tech_note09186a0080093c89.shtml
Troubleshooting Line Problems and Errors on DS-3 and E3 ATM Interfaces
http://www.cisco.com/en/US/tech/tk39/tk48/technologies_tech_note09186a0080111093.shtml
Troubleshooting Frame Relay Connections
http://www.cisco.com/en/US/docs/internetworking/troubleshooting/guide/tr1918.html
Troubleshooting Serial Lines
http://www.cisco.com/en/US/docs/internetworking/troubleshooting/guide/tr1915.html
Comprehensive Guide to Configuring and Troubleshooting Frame Relay
http://www.cisco.com/en/US/tech/tk713/tk237/technologies_tech_note09186a008014f8a7.shtml
Determining DLCI Limits From LMI Status Updates
http://www.cisco.com/en/US/tech/tk713/tk237/technologies_tech_note09186a0080094183.shtml
Equivalent MIB Objects for Frame Relay show Commands
http://www.cisco.com/en/US/tech/tk648/tk362/technologies_tech_note09186a0080483107.shtml
Frame Relay Glossary
http://www.cisco.com/en/US/tech/tk713/tk237/technologies_tech_note09186a00801e32e7.shtml
Frame Relay Traffic Shaping – Token Bucket Flowchart
http://www.cisco.com/en/US/tech/tk713/tk237/technologies_tech_note09186a0080093c07.shtml
Frame Relay Traffic Shaping Flowchart
http://www.cisco.com/en/US/tech/tk713/tk237/technologies_tech_note09186a0080094a3d.shtml
How to Detect Frame Relay PVC State Changes Using SNMP
http://www.cisco.com/en/US/tech/tk648/tk362/technologies_tech_note09186a0080094a9f.shtml
How to Measure Frame Relay Circuit Utilization Using SNMP
http://www.cisco.com/en/US/tech/tk648/tk362/technologies_tech_note09186a0080094a9d.shtml
http://www.cisco.com/application/pdf/paws/13500/frcircuit.pdf
http://www.cisco.com/en/US/tech/tk648/tk362/technologies_tech_note09186a0080094a9e.shtml
Show Commands for Frame Relay Traffic Shaping
http://www.cisco.com/en/US/tech/tk713/tk237/technologies_tech_note09186a0080093c06.shtml
Understanding Queueing on Frame Relay Router Interfaces
http://www.cisco.com/en/US/tech/tk543/tk544/technologies_tech_note09186a00800a4754.shtml
Troubleshooting ISDN Connections
http://www.cisco.com/en/US/docs/internetworking/troubleshooting/guide/tr1917.html
Common Problems in Debugging RADIUS, PAP and CHAP
http://www.cisco.com/en/US/tech/tk59/technologies_tech_note09186a0080093f4b.shtml
Configure a Cisco Router with TACACS+ Authentication
http://www.cisco.com/en/US/tech/tk59/technologies_tech_note09186a00800946a3.shtml
Configuring and Troubleshooting PPP Password Authentication Protocol (PAP)
http://www.cisco.com/en/US/tech/tk713/tk507/technologies_tech_note09186a0080093c6f.shtml
Connecting a SLIP/PPP Device to a Router’s AUX Port
http://www.cisco.com/en/US/tech/tk801/tk36/technologies_tech_note09186a0080093c76.shtml
http://www.cisco.com/en/US/tech/tk713/tk507/technologies_tech_note09186a0080093c49.shtml
http://www.cisco.com/en/US/tech/tk713/tk507/technologies_tech_note09186a0080093c49.shtml
Troubleshooting Serial Lines
http://www.cisco.com/en/US/docs/internetworking/troubleshooting/guide/tr1915.html
Blue and Yellow T1 Alarm Troubleshooting
http://www.cisco.com/en/US/tech/tk713/tk628/technologies_tech_note09186a00800a7100.shtml
DS1, T1 and E1 Glossary
http://www.cisco.com/en/US/tech/tk713/tk628/technologies_tech_note09186a00800f2fa1.shtml
E3 Alarm Troubleshooting
http://www.cisco.com/en/US/tech/tk713/tk628/technologies_tech_note09186a00800a7591.shtml
E3 Background and Configuration Guidelines
http://www.cisco.com/en/US/tech/tk713/tk628/technologies_tech_note09186a00800a72c0.shtml
E3 Error Events Troubleshooting
http://www.cisco.com/en/US/tech/tk713/tk628/technologies_tech_note09186a00800a7549.shtml
E3 Troubleshooting Flowchart
http://www.cisco.com/en/US/tech/tk713/tk628/technologies_tech_note09186a00800a7598.shtml
E1 Alarm Troubleshooting
http://www.cisco.com/en/US/tech/tk713/tk628/technologies_tech_note09186a00800a70f6.shtml
E1 Alarm Troubleshooting – Remote Alarm Indication
http://www.cisco.com/en/US/tech/tk713/tk628/technologies_tech_note09186a00800a70f8.shtml
E1 Alarm Troubleshooting Flowchart
http://www.cisco.com/en/US/tech/tk713/tk628/technologies_tech_note09186a00800a70f7.shtml
E1 Error Event Troubleshooting Flowchart
http://www.cisco.com/en/US/tech/tk713/tk628/technologies_tech_note09186a00800a70f9.shtml
E1 Error Events Troubleshooting
http://www.cisco.com/en/US/tech/tk713/tk628/technologies_tech_note09186a00800f99bb.shtml
E1 Layer 1 Troubleshooting
http://www.cisco.com/en/US/tech/tk713/tk628/technologies_tech_note09186a00800fb754.shtml
E1 Layer 1 Troubleshooting Flowchart
http://www.cisco.com/en/US/tech/tk713/tk628/technologies_tech_note09186a00800a70f3.shtml
E1 PRI Troubleshooting
http://www.cisco.com/en/US/tech/tk713/tk628/technologies_tech_note09186a00800f9e3a.shtml
E1 PRI Troubleshooting Flowchart
http://www.cisco.com/en/US/tech/tk713/tk628/technologies_tech_note09186a00800a70fc.shtml
E1 Troubleshooting
http://www.cisco.com/en/US/tech/tk713/tk628/technologies_tech_note09186a00800a70fb.shtml
Hard Plug Loopback Test
http://www.cisco.com/en/US/tech/tk713/tk628/technologies_tech_note09186a00800a7599.shtml
Hard Plug Loopback Test for E1 Lines Flowchart
http://www.cisco.com/en/US/tech/tk713/tk628/technologies_tech_note09186a00800a70fa.shtml
Hard Plug Loopback Tests for E1 Lines
http://www.cisco.com/en/US/tech/tk713/tk628/technologies_tech_note09186a008010059a.shtml
Loopback Tests for T1/56K Lines
http://www.cisco.com/en/US/tech/tk713/tk628/technologies_tech_note09186a00800a754b.shtml
MIP Configuration Example
http://www.cisco.com/en/US/tech/tk713/tk628/technologies_tech_note09186a00800a5d12.shtml
Troubleshooting Serial Line Problems
http://www.cisco.com/en/US/tech/tk713/tk628/technologies_tech_note09186a00800a758d.shtml
T3 Alarm troubleshooting
http://www.cisco.com/en/US/tech/tk713/tk628/technologies_tech_note09186a0080344194.shtml
T3 Error Events Troubleshooting
http://www.cisco.com/en/US/tech/tk713/tk628/technologies_tech_note09186a008034418d.shtml
T3 Troubleshooting Flowchart
http://www.cisco.com/en/US/tech/tk713/tk628/technologies_tech_note09186a008034bdd8.shtml
T1 Alarm Troubleshooting
http://www.cisco.com/en/US/tech/tk713/tk628/technologies_tech_note09186a00801069ff.shtml
T1 Alarm Troubleshooting Flowchart
http://www.cisco.com/en/US/tech/tk713/tk628/technologies_tech_note09186a00800a70ff.shtml
T1 Error Event Troubleshooting Flowchart
http://www.cisco.com/en/US/tech/tk713/tk628/technologies_tech_note09186a00800a4a64.shtml
T1 Error Events Troubleshooting
http://www.cisco.com/en/US/tech/tk713/tk628/technologies_tech_note09186a00801095a3.shtml
T1 Layer 1 Troubleshooting
http://www.cisco.com/en/US/tech/tk713/tk628/technologies_tech_note09186a0080104552.shtml
T1 Layer 1 Troubleshooting Flowchart
http://www.cisco.com/en/US/tech/tk713/tk628/technologies_tech_note09186a00800a4a65.shtml
T1 PRI Troubleshooting
http://www.cisco.com/en/US/tech/tk713/tk628/technologies_tech_note09186a00801509d7.shtml
T1 PRI Troubleshooting Flowchart
http://www.cisco.com/en/US/tech/tk713/tk628/technologies_tech_note09186a00800a754a.shtml
T1 Troubleshooting
http://www.cisco.com/en/US/tech/tk713/tk628/technologies_tech_note09186a00800a5f40.shtml
Understanding the show controllers E1 Command
http://www.cisco.com/en/US/tech/tk713/tk628/technologies_tech_note09186a00800a5cdc.shtml