Ieee 802.1Q Vlan Terminology | ZyXEL Communications MES-2110

Chapter 12 VLAN

12.2.1 Forwarding Tagged and Untagged Frames

Each port on the MES-2110 is capable of passing tagged or untagged frames. To forward a frame from an 802.1Q VLAN-aware switch to an 802.1Q VLAN-unaware switch, the MES-2110 first decides where to forward the frame and then strips off the VLAN tag. To forward a frame from an 802.1Q VLAN-unaware switch to an 802.1Q VLAN-aware switch, the MES-2110 first decides where to forward the frame, and then inserts a VLAN tag reflecting the ingress port's default VID. The default PVID is VLAN 1 for all ports, but this can be changed.

A broadcast frame (or a multicast frame for a multicast group that is known by the system) is duplicated only on ports that are members of the VID (except the ingress port itself), thus confining the broadcast to a specific domain.

Please refer to the following table for common IEEE 802.1Q VLAN terminology.

Table 28 IEEE 802.1Q VLAN Terminology

	VLAN	TERM	DESCRIPTION
	PARAMETER	TERM	DESCRIPTION
	PARAMETER
	VLAN Type	Permanent VLAN	This is a static VLAN created manually.

		Dynamic VLAN	This is a VLAN configured by a GVRP registration/
			deregistration process.

	VLAN	Registration Fixed	Fixed registration ports are permanent VLAN
	Administrative		members.
	Control
	Control	Registration	Ports with registration forbidden are forbidden to
		Registration	Ports with registration forbidden are forbidden to
		Forbidden	join the specified VLAN.

		Normal	Ports dynamically join a VLAN using GVRP.
		Registration

	VLAN Tag Control	Tagged	Ports belonging to the specified VLAN tag all
			outgoing frames transmitted.

		Untagged	Ports belonging to the specified VLAN don't tag all
			outgoing frames transmitted.

	VLAN Port	Port VID	This is the VLAN ID assigned to untagged frames
			that this port received.

		Acceptable Frame	You may choose to accept both tagged and
		Type	untagged incoming frames, just tagged incoming
			frames or just untagged incoming frames on a
			port.

		Ingress filtering	If set, the MES-2110 discards incoming frames
			for VLANs that do not have this port as a
			member.

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MES-2110 User’s Guide

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ZyXEL Communications MES-2110 manual Forwarding Tagged and Untagged Frames, Ieee 802.1Q Vlan Terminology

Contents

MES-2110 Page About This Users Guide Intended Audience Customer Support Document Conventions Syntax Conventions Firewall MES-2110 Computer ServerDslam Telephone Router Safety Warnings Safety Warnings MES-2110 User’s Guide Contents Overview Contents Overview MES-2110 User’s Guide Table of Contents Chapter System Details 10.1 Igmp 137 Chapter Command Line Interface 179 Index 229 Table of Contents MES-2110 User’s Guide Backbone Application IntroductionOverview Bridging Example Backbone Application High Performance Switching Example Ieee 802.1Q Vlan Application Examples Shared Server Using Vlan Example Metro Ethernet Ways to Manage the MES-2110 Metro Ethernet Good Habits for Managing the MES-2110 Desktop Installation Procedure Hardware Installation and ConnectionInstallation Scenarios Rack-mounted Installation Requirements Mounting the MES-2110 on a Rack Attaching the Mounting Brackets to the MES-2110 Attaching the Mounting Brackets Mounting the MES-2110 on a Rack Mounting the MES-2110 on a Rack Hardware Overview Front Panel Front Panel Connections Console PortGigabit Ethernet Ports Label Description Default Ethernet Negotiation Settings Mini-GBIC Slots Transceiver Installation Power Connections Overview Removing the Fiber Optic Cables AC Power Connection DC Power Connection LED Descriptions Powering on the MES-2110LEDs LED Color Statu Description Green Blinking Mbps Ethernet network Tutorials Igmp Snooping Radius Configuration Set Igmp Query Mode to Auto Tutorials Tutorials MVR Tutorial Values MVR ConfigurationSetting Value Based802.1q before proceeding Open the Configuration Igmp Menu MVR screen Tutorials For Pri-Overide, select Enable Vlan ID Priority Untrusted ARP Inspection Set Action to Enable and Dhcp Snooping Vlan Mode to All-VLAN Outgoing Traffic Bandwidth Frame Tagging Frame Tagging Example To configure frame tagging Tutorials MES-2110 User’s Guide Introduction Web ConfiguratorSystem Login Web Configurator Login Web Configurator Main Screen Main Screen System Details Configuration Mgmt Config System Restart Menu Navigation Panel Sub-links Overview Snmp Web Configurator Screen Sub-links DetailsSystem Details Configuration Mgmt Config Restart Menu Sntp Dhcp Navigation Panel LinksLink Description ARP Made on the MES-2110 and restart the MES-2110 Saving Your ConfigurationSet Up the Administrative Password Reload the Configuration File Switch LockoutResetting the MES-2110 Resetting the MES-2110 Via the Console Port System Details System Information Screen Board Information Screen IP address from a Dhcp server if Dhcp client is enabled Dhcp Configuration ScreenAddress, subnet mask and a default gateway IP address Undo Click this to restore your last saved settings Apply System Details Dhcp Config Apply Configuration Port Configuration Screen Truncated in some Web Configurator screens Auto Port Status Screen Duplex This indicates the port’s duplex mode Half or FullDisabled Manage the MES-2110 via that port Rmon Status Screen This shows whether auto-negotiation is On or Off RX+TX Configuration Rmon Status Switch in Loop State Loop Detection Loop Detection Screen Loop detection Probe Frame Enabled, the MES-2110 sends probe frames from this port to Snmp traps when it shuts down a port via the loop detectionFeature Down this port Loop Detection MES-2110 User’s Guide Frame Size Jumbo Frame Configuration ScreenJumbo Frame Jumbo Frame MES-2110 User’s Guide Ieee 802.1x Authentication 802.1x Ieee 802.1x Authentication Process Guest Vlan 10.2 802.1x Global Configuration Screen Server UDP 10.3 802.1x Radius Server Configuration ScreenMES-2110. The key is not sent over the network Port Number 1812 Server 10.4 802.1x Port Configuration Screen Before configuring it on each port Reauthenticat Guest Vlan 10.5 802.1x Radius Server Configuration Screen Clients for port access Supported Radius Attributes Technical ReferenceRadius and TACACS+ Radius vs. TACACS+ Attributes Used for Authentication Attributes Used for Authenticating Privilege Access Radius Attributes Exec Events via Console Attribute Start INTERIM-UPDATE StopAttributes Used for Accounting Radius Attributes Exec Events via Telnet/SSH Attributes Used for Accounting Ieee 802.1x Events Radius Attributes-Exec Events via 802.1x MES-2110 User’s Guide STP Path Costs BridgeSTP Terminology Link Recommended Allowed Speed Value Range How STP Works Path 16Mbps 40 to Cost 100Mbps 10 to 1Gbps 10Gbps STP Port States Bridge Configuration ScreenSTP Port States Port Description State You select Rstp 802.1W in the Ring Protocol field Rstp System Configuration ScreenAre done configuring Tunnel port receives Bridge Protocol Data Units Bpdu Root Bridge Information Same priority, the switch with the lowest MAC address willDetermines Hello Time, Max Age and Forwarding Delay List box Selected from among the MES-2110 ports attached to Allowed range is 4 to 30 secondsAs a general rule Network. The allowed range is 6 to 40 seconds Cost 1~65535 Enter the port’s path cost Spanning Tree Port Configuration255 and the default value is P2P User Priority Introduction to Ieee 802.1Q Tagged VLANsTpid CFI Vlan ID Vlan Term Description Parameter Forwarding Tagged and Untagged FramesIeee 802.1Q Vlan Terminology Vlan Vlan Type Use this to set the MES-2110 to Port-Based or Tag Vlan Type ScreenPort-Based Vlan Screen 100 Port-Based Vlan ConfigurationThen you cannot access the web configurator from a computer Connected to this port Vlan Stacking Example Tag-Based Vlan ScreensVlan Stacking 101 Vlan Stacking Port Roles 102 Vlan Tag Format Vlan Tag Format103 Type Priority Single and Double Tagged 802.11Q Frame Format Frame Format104 802.1Q Frame SP Tpid Vlan Stacking Configuration Screen105 106 Spvid Pvid Tag-Based Port Information Screen107 108 Tag-Based Port Configuration ScreenEnter the Vlan ID from 1-4094 that you want to configure Select whether you want to Add or Modify a Vlan ID Management Vlan Screen 109 Management Vlan This is the current management Vlan Unless your current access belongs to the new Vlan110 111 Bandwidth Control SetupBandwidth Control 112 113 Broadcast Storm Control SetupBroadcast Storm Control Storm Control Status Storm Control Configuration114 115 Port Mirroring SetupPort Mirroring Select the monitor port number from the list Volatile memory when you are done configuring116 117 Link AggregationDynamic Link Aggregation Static Trunking Example Link Aggregation ID Local SwitchLink Aggregation ID Peer Switch Link Aggregation ID Link Aggregation Setting 119 Lacp Link Aggregation Control Protocol120 MAC Lacp Link Status121 122 123 IP Multicast AddressesIgmp Snooping 124 Igmp ConfigurationIgmp Snooping and VLANs 125 Igmp Vlan Igmp Vlan Query Mode 126 127 Igmp StatusMVR Overview How MVR Works 128 Types of MVR PortsMVR Modes General MVR Configuration 129 Select Dynamic to send Igmp reports to all MVR source ports Disable to turn this feature off130 MVR Group Configuration 131 Drop-down list box Group Configuration132 MVR Group Status MVR Configuration Example 133 134 MVR Group Configuration Example 135 136 137 Dhcp Relay ConfigurationDhcp Relay Agent Information Relay Agent Information Bytes This is the Vlan that the port belongs to Dhcp Relay Configuration138 To a Dhcp server 139 Option82 Information 140 IP Source Guard 141 Dhcp Snooping Overview 142 Dhcp Snooping Configuration 143 144 Dhcp requests will not succeed 145 Mode VLANs or specific VLANs to Dhcp servers Dhcp SnoopingDhcp Binding Table 146 Ddhhmm 147 Configuring ARP InspectionARP Inspection Screen 148 Addresses permanently 149 150 MAC 151 MAC Table Status Screen 152 Lock MAC Address Learning Screen Undo Click this to load your last saved settings ApplyMES-2110 or static manually configured 153 Port This is the port number Lock MAC Filter Configuration Screen154 To activate MAC address learning on the port 155 156 MAC Limit Configuration ScreenAddresses may access port 2 at any one time. a sixth device Aged out. MAC address aging out time can be set in the MAC 157 QoS Base Configuration ScreenQoS Configuring the Base Configuration Screen 158 159 802.1p Priority Table 160 161 Tag Priority TableIP Dscp Priority Table Number This is the Ieee 802.1p priority level Priority Configuration QoS Menu IP Dscp Priority 162 Priority Override Configuration Screen 163 164 165 Mgmt Config and System Restart MenuSerial Port Configuration Screen Snmp Configuration Screens 166 Snmp Communities Screen Snmp CommandsCommand Description IP Trap Manager Screen Traps to Sntp Screen168 169 Alarms and Logs 170 171 Syslog User Password User Configuration ScreenCharacters using characters found on a standard keyboard 172 PHY RX/TX Cable Test Screen173 Test Host DoS Protection174 Fields below Port Abnormal Traffic Detection Screen175 Upgrading the Firmware 176 Managing the Configuration File 177 Restarting the System 178 Console Port Management Command Line InterfaceSetting Default Value Logging Saving Changes Using Shortcuts and Getting HelpCommand / Keys Description 180 Basic Commands Command ModesExit Command Logging Out Basic Commands 182 183 Privileged Command ModePrivileged Commands 184 185 Make while using the MES-2110Command line interface Permanently save any changes you 186 Configuration ModeConfiguration Mode Commands Ancillary Trigger Description 187 188 189 190 191 Address over Telnet 192 Igmp Snooping Example 193 Radius Configuration Example 194 This command to work MVR ModeMVR-Configuration Mode Commands 195 MVR Command Example 196 197 Vlan ModeVlan Mode Commands 198 Interface ModeVlan ID Priority Example Interface Mode Commands 199 200 201 Bytes 1522 bytes + 4 bytes for 202Port, the port must allow frames Second tag to pass through it Outgoing Traffic Bandwidth Limit Example Sets the service provider Vlan ID of the current PortsUntrusted ARP Inspection Example 203 Frame Tagging Examples 204 205 206 207 TroubleshootingPower, Hardware Connections, and LEDs MES-2110 Access and Login 208 209 Advanced Suggestions 210 Pop-up Windows, JavaScript and Java Permissions MES-2110 Configuration and Console 211 My changes in the Web Configurator keep getting overwritten 212 213 214 Specification Description Product SpecificationsHardware Specifications 215 216 Firmware SpecificationsFeature Description 217 Standard Description 218Standards Supported 219 Installing a FuseRemoving a Fuse 220 Common Services 221 Name Protocol Ports Description Commonly Used Services222 223 224 225 CopyrightCertifications 226 FCC Warning CE Mark Warning ZyXEL Limited Warranty 227 228 Index 229 230 231 MVR 127 configurationPassword 58 path cost 89, 93 port authentication TACACS+ Weighted round robin scheduling 232