1 / 17

Computer Networks 6 Layer 2 troubleshooting

Computer Networks 6 Layer 2 troubleshooting. Halmstad University Olga Torstensson 035-167575 olga.torstensson@ide.hh.se. Module 4 Troubleshooting Layer 2. Data Link Layer Problems LAN Switching Frame Relay ISDN PPP. Symptoms of Data Link Layer Problems. High Layer Protocol Failure.

ronda
Download Presentation

Computer Networks 6 Layer 2 troubleshooting

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Computer Networks 6 Layer 2 troubleshooting Halmstad University Olga Torstensson 035-167575 olga.torstensson@ide.hh.se

  2. Module 4 Troubleshooting Layer 2 • Data Link Layer Problems • LAN Switching • Frame Relay • ISDN • PPP

  3. Symptoms of Data Link Layer Problems

  4. High Layer Protocol Failure

  5. PING to find Boundary of Problem

  6. Examine Line Status

  7. Suboptimal Traffic Flow

  8. Intermittent Packet Loss

  9. Interface Encapsulation

  10. Troubleshooting LAN Switching Reviewtheory :STP VTP

  11. Troubleshooting VTP • Don’t configure VTP servers off-line – VTP advertisement revision may cause problems in the domain • vtp - domain, mode, password • show vlan, show vtp domain, show vtp statistics • show vtp status, show vtp counters

  12. Show vtp status

  13. Characteristics of STP Failure & Switching Loops

  14. STP

  15. Show spanning-tree

  16. Troubleshooting LAN Switching • show vlan, show spanning-tree, • debug vlan packet

  17. Misconfigured EtherChannel

More Related