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Allied Telesis AT-S111, AT-GS950/48PS manual Dhcp Snooping 302

Models: AT-S111 AT-GS950/48PS

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Historical Status Charts Alarms Password Error Group Statistics Login System Configuration Cable Diagnostics Create an IP Access List User Interface Timeout Manually Setting System Time

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Chapter 23: DHCP Snooping

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Allied Telesis AT-S111, AT-GS950/48PS manual Dhcp Snooping 302

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Contents

AT-GS950/48PS Copyright 2013 Allied Telesis, Inc Page Page Contents 101 Ingress Rate Limiting 143 Egress Rate Limiting 202 258 Displaying System Information 307 Setting Port States Management Login Dialog Box List of Figures Figures Dhcp Snooping Vlan Settings 295 Figures List of Tables List of Tables Preface Document Conventions Allied Telesis Contact Information Preface Getting Started SectionPage Starting a Web Browser Session Chapter Switch’s IP Address  Snmp  Lldp Web Browser Tools Quitting a Web Browser Management Session System Configuration System Management Information AT-GS950/48PS Switch Web Interface User’s Guide Configuration of IP Address, Subnet Mask and Gateway Address AT-GS950/48PS Switch Web Interface User’s Guide IP Access List Configuration Create an IP Access List Delete an IP Address List Entry User Name and Password Configuration Add New User Name Password Modify User Name Password Delete User Name and Password User Interface Configuration User Interface Timeout Manually Setting System Time System Time System Configuration Setting Daylight Savings Parameters Daylight Savings Time Status field, select Enabled SSL Settings AT-GS950/48PS Switch Web Interface User’s Guide Dhcp and ATI Web Discovery Tool Dhcp Client Configuration System Configuration Dhcp Auto Configuration System Information Display AT-GS950/48PS Switch Web Interface User’s Guide System Log Configuration System Log Configuration AT-GS950/48PS Switch Web Interface User’s Guide System Configuration Bridge Configuration Page Port Configuration Overview Displaying and Configuring Ports Port Configuration AT-GS950/48PS Switch Web Interface User’s Guide Port Configuration STP and Rstp Overview Bridge Priority Root Increment Bridge Priority Path Costs and Port Costs Forwarding Delay Topology Changes Step Hello Time and Bridge Protocol Data Units Bpdu Mixed STP and Rstp Networks Point-to-Point Ports Spanning Tree and VLANs Ports blocked by STP Blocked Data Links Blocked Data Links Basic STP and Rstp Configuration Rapid Spanning Tree Configuration AT-GS950/48PS Switch Web Interface User’s Guide STP and Rstp Configure Rstp Port Settings Configure Basic Rstp Port Settings STP and Rstp Configure Advanced Rstp Port Settings AT-GS950/48PS Rstp Advanced Port Configuration STP and Rstp AT-GS950/48PS Switch Web Interface User’s Guide Spanning Tree Topology From the Spanning Tree folder, select Topology Info Multiple Spanning Tree Protocol Multiple Spanning Tree Configuration AT-GS950/48PS Switch Web Interface User’s Guide Multiple Spanning Tree Protocol Port Configuration From the Mstp folder, select Mstp Port Configuration Multiple Spanning Tree Protocol AT-GS950/48PS Switch Web Interface User’s Guide Vlan Mapping Open Mstp Vlan Mapping Create Vlan Mapping to MST Instance Modify MST Instance Delete MST Instance Port Settings AT-GS950/48PS Switch Web Interface User’s Guide Topology Information AT-GS950/48PS Switch Web Interface User’s Guide Multiple Spanning Tree Protocol Static Port Trunking Static Trunk General Guidelines Static Port Trunking Create a Port Trunk 100 Modify a Port Trunk 102 Disable a Port Trunk Static Port Trunking 104 Lacp Port Trunks 106 System Priority Port Priority Value General Guidelines 110 Group Status Configuration Example 113 Port Priority Configuration From the Trunk Config folder, select Port Priority Port Mirroring 116 Port Mirroring Configuration Disable Port Mirroring Loopback Protection Configuration 121 Status MAC Address Table 124 125 Static Unicast MAC Address Configuration 127 Modify Static Unicast Address Delete Static Unicast Address Static Multicast Address Configuration 131 132 Modify Static Multicast Address Delete Static Multicast Address Igmp Snooping 136 137 Igmp Snooping Configuration 139 Igmp Snooping 140 Storm Control 142 Ingress Rate Limiting Egress Rate Limiting Configuration From the Storm Control folder, select Storm Control 145 Ingress Rate Limiting For a partial view of this 147 Egress Rate Limiting Virtual LANs Vlan Overview Port-based Vlan Overview Vlan Name Tagged Vlan Overview General Rules for Creating a Port-based Vlan Tagged and Untagged Ports General Rules for Creating a Tagged Vlan Assign Ports to a Vlan Mode 156 Tagged Vlan Configuration Create a Tagged Modify a Tagged AT-GS950/48PS Modify Vlan Delete a Tagged 161 Tagged Vlan Port Settings 163 Port-Based Vlan Configuration Create a Port- Based Vlan Modify a Port- Based Vlan 166 Gvrp Overview and Guidelines General Configuration From the Gvrp folder, select Gvrp Global Configuration Enable The Restricted Vlan Registration is active for 171 Time Settings 173 Gvrp 174 Quality of Service and Cost of Service 176 Egress Queue vs Packet Priority Mapping Ieee 802.1p Port Priority Scheduling Prioritizing Untagged Packets Weighted Round Robin Priority Scheduling Port Egress Queue Maximum Number Mapping CoS Priorities to Egress Queues CoS 181 Associate Ports to CoS Priorities Associate Dscp Classes to Egress Queues 184 Queue Scheduling Algorithm Quality of Service and Cost of Service 186 Advanced Features 188 SNMPv1 and v2c SNMPv1 and SNMPv2c Overview Trap Receiver Attributes Activate Snmp Interface SNMPv1 and SNMPv2c User and Group Names Create User and Group Names Modify User and Group Names Snmp User/Group Page Example Delete User and Group Names Enter a new Community Name Snmp Community StringsCreate Snmp Community Strings Modify Snmp Community Strings Delete Snmp From the Snmp folder, select Trap Management Snmp TrapsCreate Trap Host Table Entry Modify a Trap Host Table Entry Delete a Trap Host Table Entry 200 SNMPv3 SNMPv3 Authentication Protocols SNMPv3 Privacy Protocol SNMPv3 MIB Views SNMPv3 Configuration Process SNMPv3 Table Relationships SNMPv3 User and Group Names Creating SNMPv3 User Group Names Modifying SNMPv3 User Group Names Deleting SNMPv3 User and Group Names Creating SNMPv3 View Names From the Snmp folder, select Group Access TableSNMPv3 View Names Enter the Read View Name Enter the Write View Name Enter the Notify View Name Deleting SNMPv3 View Names From the Snmp folder, select Snmp Access TableModifying SNMPv3 View Names Enter the Subtree OID SNMPv3 View TableCreating SNMPv3 View Table Entries Modifying SNMPv3 View Table Entries Deleting SNMPv3 214 SNMPv3 Traps SNMPv3 216 Access Control Configuration 218 Creating a Classifier Access Control Config folder expandsClassifier 220 Modifying a Classifier From the Access Control Config folder, select Classifier Deleting a Classifier 223 Profile Action Creating a Profile Action Modifying Profile Action Deleting a Profile Action In-Profile Action Creating an In- Profile Action Policed-CoS fields Example of In-Profile Action Entry Modifying an In- Profile Action Deleting an In- Profile Action Out-Profile Action Creating a Out- Profile Action Example of Out-Profile Action Entry Modify Out- Profile Action Delete Out- Profile Action Port List Modify Port List 237 Policy Create Policy 239 240 241 242 Policy Sequence Status Policy Sequence Page with Display by Index Selected Access Control Configuration 244 Rmon 246 Enable and Disable Rmon Port Statistics 249 Histories 251 Events 253 Alarms 255 256 Voice Vlan CoS with Voice Organization Unique Identifier Dynamic Auto Detection vs Static Ports 260 261 From the Voice Vlan folder, select Voice Vlan Settings 263 264 OUI Setting Create OUI Setting Modify OUI Setting Delete OUI Security Port Access Control Port Access Control Configuration 270 271 272 Radius Client Overview General Guidelines Radius Client Configuration 275 Dial-in User- Local Authentication Overview Dial-in User Configuration Modify a Dial-in User From the Security folder, Dial-in User Delete a Dial-in User From the Security folder, select Destination MAC Filter Overview Destination MAC Filter ConfigurationDestination MAC Filter Delete Destination MAC Filter Destination MAC Filter Page Example 281 Security 282 Power Over Ethernet PoE 284 Priority Description PoE Configuration 287 Power Over Ethernet PoE 288 Dhcp Snooping Trusted Ports Untrusted Ports Unauthorized Dhcp Servers Dhcp with Option 292 General Configuration 294 Vlan Setting Deleting a Vlan From the Dhcp Snooping folder, select Vlan SettingsModifying a Trusted and Untrusted Port Configuration 298 From the Dhcp Snooping folder, select Binding Database Binding DatabaseStatic IP Addresses 300 301 Dhcp Snooping 302 Lldp 304 Global Configuration Lldp Enabling or Disabling Lldp Setting Port States Displaying System Information 308 Neighbors Information From the Lldp folder, select Lldp Neighbors Information Lldp 310 Network Statistics 312 Traffic Comparison Statistics Option Definition  5 seconds  10 seconds  15 seconds  30 seconds 315 Error Group Statistics 317 Historical Status Charts 319 320 Tools 322 Software/Configuration Updates 324 Upgrade Firmware Image via Http 326 Upgrade Firmware Image via Tftp 328 Upload or Download a Configuration File via Http Configuration File Upload Result Click on the Return to previous page link Configuration File Download Download or Upload a Configuration File via Tftp 333 Software/Configuration Updates 334 Cable Diagnostics Click Test Now 336 Rebooting the AT-GS950/48PS Switch Reboot 339 Configure Factory Default Values 341 Password Protection of Factory Reset Disabling Factory Default Reset Feature 343 Enabling Factory Default Reset Factory Default Reset Disabled 345 Rebooting the AT-GS950/48PS 346 Pinging a Remote System Pinging a Remote System Mstp Overview 350 351 Multiple Spanning Tree Instance Msti Vlan Fragmentation with STP or Rstp Multiple VLANs Assigned to an 354 355 Vlan and Msti Associations Ports in Multiple MSTIs Multiple Spanning Tree Regions Configuration Name Marketing Region, Revision Level Switch MST Region Guidelines Bridge Priority Selections 361 Common Internal Spanning Tree Mstp with STP and Rstp Associating VLANs to MSTIs 364 VLANs Across Different Regions Spanning Regions without Blocking Summary of Guidelines Appendix a Mstp Overview 368 AT-GS950/48PS Default Parameters Appendix B Parameter AT-GS950/48PS Specifications Default Setting System/SSL Settings Bridge/Spanning Tree/RSTP AT-GS950/48PS 32768 Bridge/Loopback Detection Bridge/Trunk Config/TrunkingBridge/Trunk Config/LACP Group Status Bridge/IGMP Snooping Vlan SNMP/View Table SNMP/Group Access TableBridge/GVRP SNMP/Trap Management Snmp User/GroupSNMP/Community Table Vlan ID Rmon Voice Vlan COS Dhcp Snooping Statistics Chart Tools Configuration File None Upload/Download via Appendix B AT-GS950/48PS Default Parameters 386

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