Digital Networks North America DNswitch 800 Using a Port Mirror for Analysis

46 Configuring and Monitoring the Switch DNswitch 800

Using a Port Mirror for Analysis

You can mirror traffic from any source port to a target port for real-time

analysis. You can then attach a logic analyzer or RMON probe to the

target port and study the traffic crossing the source port in a completely

unobtrusive manner. When mirroring port traffic, note that the target port

must be configured in the same VLAN and be operating at the same

duplex mode as the source port (see VLAN Static List on page 33).

You can use the port mirror configuration screen to designate a single port

pair for mirroring as shown below:

Figure 3-39. Mirror Port Configuration

Parameter Description

Status Enables/disables port mirroring.

Mirror Source Port The port whose traffic will be monitored.

Mirror Target Port The port that will duplicate or “mirror” all the traffic happening on

the monitored port.

Contents

Main Page Page Page Page Page Page Page Table of Contents Page 1. OVERVIEW Digital Networks WebView Description Features System Requirements Page 2. USING WEB-BASED MANAGEMENT Setting Up Web Management Setting an IP Address Setting a Default Gateway Setting the Administrator Password Setting Trap Destinations Enabling Web Management Starting and Stopping Digital Networks WebView Digital Networks WebView User Interface Areas of the User Interface Table 2-1. Areas of the User Interface Configuration Options Using Help 3. CONFIGURING AND MONITORING THE SWITCH Screen Hierarchy System Information Figure 3-2. System Information Switch Information Main Board IP Configuration Figure 3-4. IP Configuration SNMP Configuration SNMP Community Trap Managers Security Configuration Change Password Firmware Upgrade Options Web Upload Management TFTP Download Management Configuration Save and Restore Configuration Upload Management Configuration Download Management Address Table Configuration Page Spanning Tree Information Figure 3-14. STA Information - Ports Spanning Tree Configuration When the Switch Becomes Root Figure 3-16. STA Configuration - When the Switch Becomes Root STA Port Configuration The following figure and table describe STA configuration for ports. Figure 3-17. STA Port Configuration Configuring Bridge MIB Extensions Figure 3-18. Bridge Capability Bridge Capability Bridge Settings Figure 3-19. Bridge Settings Priority Port Priority Configuration Port Traffic Class Information VLAN Management Configuring Virtual LANs VLAN Basic Information VLAN Current Table VLAN Static List VLAN Static Table Page VLAN Static Membership by Port VLAN Port Configuration Use this screen to configure port-specific settings for IEEE 802.1Q VLAN features. Figure 3-29. VLAN Port Configuration IGMP Multicast Filtering Configuring IGMP Multicast Router Port Information Static Multicast Router Port Configuration IGMP Member Port Table IP Multicast Registration Table Port Menus Port Information Port Configuration Use the Port Configuration menus to configure any port on the switch. Figure 3-36. Port Configuration Port Broadcast Storm Protect Configuration Figure 3-37. Port Broadcast Storm Protect Configuration Port Security Configuration Using a Port Mirror for Analysis Port Trunk Configuration Page Port Statistics Etherlike Statistics Figure 3-41. Etherlike Statistics RMON Statistics Page Page APPENDIX A. TROUBLESHOOTING Troubleshooting Cannot Connect to the Switch System is Disconnected from the Switch Frequently Asked Questions INDEX A B C D Q R S T U