Broadcast Management | D-Link DES-3624 specs

Stackable NWay Ethernet Switch User’s Guide

VLANs Over 802.1Q-compliant Switches

When switches maintaining the same VLANs are 802.1Q-compliant, it is possible to use tagging. Tagging puts 802.1Q VLAN information into each packet header, enabling other 802.1Q-compliant switches that receive the packet to know how to treat it. Upon receiving a tagged packet, an 802.1Q-compliant switch can use the information in the packet header to maintain the integrity of VLANs, carry out priority forwarding, etc.

Data transmissions between 802.1Q-compliant switches take place as shown below.

Figure 5-5. Data transmissions between 802.1Q-compliant Switches

In the above example, step 4 is the key element. Because the packet has 802.1Q VLAN data encoded in its header, the ingress port can make VLAN-based decisions about its delivery: whether server #2 is attached to a port that is a member of VLAN 2 and, thus, should the packet be delivered; the queuing priority to give to the packet, etc. It can also perform these functions for VLAN 1 packets as well, and, in fact, for any tagged packet it receives regardless of the VLAN number.

If the ingress port in step 4 were connected to a non-802.1Q-compliant device and was thus receiving untagged packets, it would tag its own PVID onto the packet and use this information to make forwarding decisions. As a result, the packets coming from the non-compliant device would automatically be placed on the ingress ports VLAN and could only communicate with other ports that are members of this VLAN.

Broadcast Management

Broadcast transmissions, packets sent to every device on the LAN, are a vital part of any network. However, they can often cause problems on the network and even network failure. For this reason the Switch has a number of tools for managing broadcast packets on your network.

38	Switch Management Concepts

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D-Link DES-3624 manual Broadcast Management, VLANs Over 802.1Q-compliant Switches

Contents

DES-3624 Series Stackable NWay Ethernet Switch User’s Guide Wichtige Sicherheitshinweise Warranties Exclusive Software Link Offices for Registration and Warranty ServiceHardware Trademarks CE Mark Warning Copyright StatementFCC Warning Vcci Warning Bsmi Warning Table of Contents Using the Console Interface Technical Specifications Runtime Software Default Settings Overview of this User’s Guide About this GuideConventions Gigabit Ethernet Technology IntroductionFast Ethernet Technology Ports Switching TechnologyFeatures Performance features Management Desktop or Shelf Installation Unpacking and SetupSetup Unpacking Rack Installation Switch installed on a Desktop or Shelf Power On Power Failure Identifying External Components Front Panel Rear Panel Side Panels Side panel views of the Switch Stack Operation Switch stack with example of possible connections Optional Plug-in Modules 100BASE-FX MT-RJ Module 100BASE-FX SC Module 100BASE-TX Module 1000BASE-SX Gigabit Module 1000BASE-LX Gigabit Module 1000BASE-T Copper Gigabit Module LED Indicators 12. The Switch LED indicators Identifying External Components Switch to Hub or Switch Connecting the SwitchSwitch to End Node 10BASE-T Device 100BASE-TX Device Local Console Management Switch Management ConceptsDiagnostic Console Port RS-232 DCE IP Addresses and Snmp Community Names Traps Aging Time MIBsPacket Forwarding Spanning Tree Algorithm Filtering Database On the Bridge Level STA Operation LevelsUser-Changeable STA Parameters On the Port Level Illustration of STA Before Applying the STA Rules STA parameters Settings Effects Comment Bridge Priority Port Trunking Vlan Sharing Resources Across VLANs Ieee 802.1Q VLANsVlan Segmentation VLANs Spanning Multiple Switches Pvid VID VLANs Over 802.1Q-compliant Switches Broadcast Management MAC-based Broadcast Packet Filter Broadcast StormsPort-based Broadcast Packet Filter Using the Console Interface Setting Up a Console Connecting to the Switch Using Telnet Console Usage Conventions Initial Screen, first time connecting to the Switch Administrator and Normal User Privileges User Accounts Management Menu Administrator Normal User Privilege Save Changes Login On The Switch Console By Registered Users Create/Modify User Accounts User Accounts Management menu View/Delete User Accounts Add/Modify User Accounts screen Setting Up The Switch System Configuration Configure IP Address System Configuration menu IP Address Configuration screen Configure Console Settings on Restart Configure Switch Stack 11. Switch Stack Configuration screen Information of Individual Switch Unit 12A. Information of Individual Switch Unit screen Advance Settings 12B. Information of Individual Switch Unit screen Configure Port 13. Configure Advanced Switch Features screen 14. Port Configuration screen Configure Trunk 15. Port Trunk screen Configure Port Mirroring Configure Spanning Tree Protocol STP Parameter Settings 17. Configure Spanning Tree Protocol menu 18. STP Parameter Setting screen STP Custom Settings Configure Filtering and Forwarding Table 19. STP Custom Settings screen 20. Configure Filtering and Forwarding table screen Configure Static Forwarding Table Entry 21. Static Forwarding Table Configuration screen Configure MAC Address Filtering 22. Custom Filtering Table screen Configure Permanent Multicast Filtering Configure Igmp 24. Igmp Configuration screen 25. Ieee 802.1q Igmp Configuration screen 26. Add/Remove Igmp Entry screen Configure VLANs & MAC-based Broadcast Domains 27. Ieee 802.1Q Igmp Configuration screen Configure MAC-Based Broadcast Domains 28. VLANs & MAC-based Broadcast Domains Configuration screen 29. MAC-Based Broadcast Domains Configuration menu 30. Add/Remove MAC-based Broadcast Domains screen 31. Add/Remove MAC-based Broadcast Domain Members screen Configure Ieee 802.1Q VLANs 32. Add/Remove MAC-based Broadcast Domain Members screen 33. Ieee 802.1Q VLANs Configuration menu 34. Ingress Filtering Check screen 35. Default port Vlan assignment screen 36 .1Q Static Vlan Settings screen Update Firmware and Configuration Files 37. Browse 802.1Q Vlan Entries screen 38. Update Firmware and Configuration Files screen Special Note Concerning Firmware Updates System Utilities Save Settings to Tftp Server Ping Test Save Switch History to Tftp Server 41. Save Settings to Tftp Server screen Community Strings and Trap Stations Clear Address Table 43. Snmp Manager Configuration screen Switch Monitoring Network Monitoring Traffic Statistics Port Utilization Port Traffic Statistics 46. Port Utilization screen 47. Port Traffic Statistics screen Port Packet Error Statistics 48. Port Packet Error Statistics table Port Packet Analysis Statistics 49. Packet Analysis Statistics table Browse Address Table Switch History 50. Browse Address Table 51. Switch History screen Browse Igmp Status 52. IP Multicast Information screen Restart System Resetting the SwitchFactory Reset 54. Factory Reset NV-RAM to Default Value screen Logout Getting Started WEB-BASED Network ManagementIntroduction Management Configuration IP Address Switch Configure Switch Stack window Web-Based Network Management 103 Configure Switch Stack Advanced window Advanced Switch Unit Information Of Individual Switch Unit window Configure Port window Port Port Trunk Port Trunk window Port Mirroring Port Mirroring window STP Parameters Setting Spanning Tree Protocol STP Custom Setting Spanning Tree Custom Setting window 10. Configure Forwarding Table And Filtering Table window Forwarding and Filtering Click New to access the Static Forwarding Table Edit window Static Forwarding Table 12. Static Forwarding Table---Edit window MAC Address Filtering Table 13. Static MAC Address Filtering window 14. Static MAC Address Filtering---Edit window Permanent Multicast Filtering 15. Static Permanent Multicast Filtering window Igmp Igmp Settings 17. Configure Igmp window 802.1Q Igmp 18. Add/Remove Igmp Table window VLANs & MAC-based Broadcast Domains 19. Add/Remove Igmp Table-Edit window 20. Configure Vlan window MAC-Based Broadcast Domains 21. Add/Remove MAC-based Broadcast Domains window 22. Add/Remove MAC-based Broadcast Domains --- Edit window 23. Add/Remove MAC-based Broadcast Domain Member window Web-Based Network Management 125 25. Default Port Vlan ID window Ieee 802.1Q VLANs 26. Port Ingress Filtering Check window 27 .1Q Static Vlan Entry window number one 28 .1Q Static Vlan Entry window number two Community Strings and Trap Stations 29. Community Strings and Trap Stations window User Account 30. User Accounts window 31. User Account-Edit window 32. Configure Console window Console Switch Overview Monitoring Port Utilization 34. Port Utilization window Port Traffic Statistics 35. Port Traffic Statistics window Port Error Packet Statistics 36. Port Error Packet Statistics window 138 Port Packet Analysis Statistics 37. Port Packet Analysis window 38. Browse Address Table window 39. Browse Igmp Status window Maintenance 40. Switch History window Firmware and Configuration Update 41. Firmware and Configuration Update window 42. Save Settings To Tftp Server window 43. Save Switch History To Tftp Server window Save Changes 44. Save Changes window Factory Reset 45. Factory Reset to Default Value window Restart System 46. Restart System window Technical Specifications General Physical and Environmental Performance RJ-45 PIN Specification Figure B-1. The standard RJ-45 receptacle/connector RJ-45 Connector pin assignment Sample Configuration File Commands # specify default gateway Defaultgateway = Runtime Software Default Settings Index Blocking MDI-II Untagging Offices Registration Card