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ZyXEL Communications GS1900 The following table describes the labels in this screen, Table 93 Configuration > Link Aggregation > LACP Port > Edit

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Chapter 21 Configuration: Link Aggregation

The following table describes the labels in this screen.

Table 93 Configuration > Link Aggregation > LACP Port > Edit

LABEL	DESCRIPTION
LACP Port

Port List	Displays the list of port index numbers to be configured.

Priority	Enter a value for the port priority. The number can be between 1 and 65,535.

Timer	Select a timer value of either 1 second or 30 seconds.

Apply	Click Apply to save the changes.

Cancel	Click Cancel to discard the changes.

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GS1900 Series User’s Guide	129

Contents

GS1900 Series Quick Start Guide User’s Guide Note: It is recommended you use the Web Configurator to configure the Switch Contents Overview Table of Contents Part I: User’s Guide Chapter Getting Start Monitor: Port 9.1 Overview 9.2 MAC Table 10.1 Overview 10.2 Link Aggregation 11.1 Overview Monitor: Security Monitor: Management Configuration: System 18.5.1 The Bandwidth Control Screen 18.5.2 The Port Rate Edit Screen 18.6.1 The Port Screen 18.6.2 The Port Edit Screen 19.1 Overview Configuration: Multicast Configuration: Spanning Tree 26.1 Overview 26.2 LLDP 27.1 Overview 27.2 General 27.3 Trust Mode Configuration: AAA Configuration: Management 30.3.5 The Group Add/Modify Screen 30.3.6 The User Screen 30.3.7 The User Add/Modify Screen 30.3.8 The Trap Screen 30.3.9 The Trap Destination Screen Appendix Page Page Getting to Know Your Switch 1.1 Introduction Figure Backbone Sales Internet Page 1.2 Ways to Manage the Switch 1.3Good Habits for Managing the Switch Hardware Installation and Connection 2.1 Freestanding Installation 2.2 Hardware Installation Page Page Hardware Overview 3.1 Front Panel Connections 3.2Rear Panel POWER ON/OFF Note: Use the included power cord for the AC power connection 3.3 LEDs The Web Configurator 4.1 Overview 4.2 Access 4.3Navigating the Web Configurator Table 5 Title Bar: Web Configurator Icons (continued) Logout Figure 17 Web Configurator: Logout Screen Figure 18 Navigation Panel For details on Getting Start features, see Chapter 5 on page The monitor menu screens display status and statistics information Table 6 Monitor Menu Screens Summary FOLDER OR LINK TAB Table 6 Monitor Menu Screens Summary (continued) Use the configuration menu screens to configure the Switch’s features Table 7 Configuration Menu Screens Summary Table 7 Configuration Menu Screens Summary (continued) Page Table 8 Maintenance Menu Screens Summary Getting Start 5.1 Overview 5.2 Getting Start Chapter 5 Getting Start Table 9 Getting Start (continued) Model Name This field displays the model name of this Switch Serial Number Each field is described in the following table Table 10 Getting Start > Start up > 1 Step 1 Set up IP/DNS Host Name This field displays a host name IP Address Figure 22 Getting Start > Start up > 3 Step 3 Finish Table 12 Getting Start > Start up > 3 Step 3 Finish Finish Review the information and click Finish to create the task In VLAN, you can create VLAN, tag VLAN setting, and view finished results Page Table 14 Getting Start > VLAN > 2 Step 2 Tag VLAN Setting Figure 25 Getting Start > VLAN> 3 Step 3 Finish Table 15 Getting Start > VLAN > 3 Step 3 Finish In QoS, you can create QoS settings, and view finished results Getting Start > QoS > 1 Step 1 QoS (QualityOfService) Getting Start > Link aggregation > 1 Step 1 Link aggregation Figure 28 Getting Start > Link aggregation > 1 Step 1 Link aggregation Table 18 Getting Start > Link aggregation > 1 Step 1 Link aggregation Figure 29 Getting Start > Link aggregation > 2 Step 2 Finish Table 19 Getting Start > Link aggregation > 2 Step 2 Finish Page Page Monitor: System 6.1 Overview 6.2 IP Chapter 6 Monitor: System Table 20 Monitor > System > IP > IPv4 DHCP State (DHCP) This field displays IP address of the Switch in the IP domain 6.3 Information Monitor: Port 7.1 Overview 7.2 Port Chapter 7 Monitor: Port Table 23 Monitor > Port > Port > Status (continued) State This is port admin setting state Link Status Table 24 Monitor > Port > Port > Port Counters (continued) Monitor > Port > Port > Bandwidth Utilization Figure 35 Monitor > Port > Port > Bandwidth Utilization Table 25 Monitor > Port > Port > Bandwidth Utilization 7.3 PoE 7.4 Bandwidth Management 7.5 Storm Control Monitor: VLAN 8.1 Overview 8.2 VLAN Chapter 8 Monitor: VLAN Figure 40 Monitor > VLAN > VLAN > VLAN Table 29 Monitor > VLAN > VLAN > VLAN VLAN ID This is the VLAN identification number Table 30 Monitor > VLAN > VLAN > Port (continued) Accept Frame This field displays the type that is accepted by the frame Only be dropped 8.3 Guest VLAN 8.4 Voice VLAN Table 33 Monitor > VLAN > Voice VLAN (continued) Monitor: MAC Table 9.1 Overview 9.2 MAC Table Monitor: Link Aggregation 10.1 Overview 10.2 Link Aggregation Chapter 10 Monitor: Link Aggregation Table 35 Monitor > Link Aggregation > LAG Monitor: Loop Guard 11.1 Overview 11.2 Loop Guard Figure 52 Monitor > Loop Guard Table 36 Monitor > Loop Guard Monitor: Multicast 12.1 Overview 12.2 IGMP Chapter 12 Monitor: Multicast Table 37 Monitor > Multicast > IGMP > Vlan Monitor > Multicast > IGMP > Statistics Figure 54 Monitor > Multicast > IGMP > Statistics Table 38 Monitor > Multicast > IGMP > Statistics Reset In the Reset column, the Reset option allows you to delete a pre-existingrule Figure 55 Monitor > Multicast > IGMP > Statistics > Reset Monitor > Multicast > IGMP > Group Figure 56 Monitor > Multicast > IGMP > Group Table 39 Monitor > Multicast > IGMP > Group Monitor > Multicast > IGMP > Router Figure 57 Monitor > Multicast > IGMP > Router Table 40 Monitor > Multicast > IGMP > Router Monitor: Spanning Tree 13.1 Overview 13.2 Spanning Tree Chapter 13 Monitor: Spanning Tree Table 41 Monitor > Spanning Tree > CIST Bridge Indentifier address Table 42 Monitor > Spanning Tree > CIST Port This field displays the identifier (in priority / port number) (Priority / Port Id) Operation media, the higher the cost Table 43 Monitor > Spanning Tree > MST MST ID This is the unique identifier for this MST Select a number from the drop-downmenu to display results spanning tree network Chapter 13 Monitor: Spanning Tree Table 44 Monitor > Spanning Tree > MST Port (continued) Indentifier (Priority / Port Id) Internal Path Table 45 Monitor > Spanning Tree > STP Statistics Monitor: LLDP 14.1 Overview 14.2 LLDP Chapter 14 Monitor: LLDP Table 46 Monitor > LLDP > Statistics Monitor > LLDP > Remote Information Figure 64 Monitor > LLDP > Remote Information Table 47 Monitor > LLDP > Remote Information Table 47 Monitor > LLDP > Remote Information (continued) Detail Monitor > LLDP > Overloading Figure 65 Monitor > LLDP > Overloading Table 48 Monitor > LLDP > Overloading Monitor: Security 15.1 Overview 15.2 Port Security Chapter 15 Monitor: Security Table 49 Monitor > Security > Port Security This field displays the status of global control information This field displays the status of port based control information Max MAC Entry Monitor > Security > 802.1X > Authenticated Hosts Figure 68 Monitor > Security > 802.1x > Authenticated Hosts Table 51 Monitor > Security > 802.1x > Authenticated Hosts Monitor: Management 16.1 Overview 16.2 Syslog 16.3 Error Disable Figure 70 Monitor > Management > Error Disable Table 53 Monitor > Management > Error Disable Recovery Error Disabled Reason Configuration: System 17.1 Overview 17.2 IP Chapter 17 Configuration: System Table 54 Configuration > System > IP > IPv4 IPv4 Address the properties Enter the IP address of the Switch in the IP domain 17.3 Time 17.4 Information System Information Figure 75 Configuration > System > System Information Table 58 Configuration > System > System Information Configuration: Port 18.1 Overview 18.2 Port Chapter 18 Configuration: Port Table 59 Configuration > Port > Port > Port properties of the port Displays the port index number 32 alpha-numericalcharacters 18.3 EEE 18.4 PoE Figure 80 Configuration > Port > PoE > PoE Table 63 Configuration > Port > PoE > PoE PoE Setting must be enabled for data transmission to occur Displays which ports can receive power from the Switch. You can set this in the Table 63 Configuration > Port > PoE > PoE (continued) PD Priority priority first Power (mW) Max Power Table 64 Configuration > Port > PoE > PoE> Edit (continued) This field is not available for the SFP or SFP+ ports priority Select Critical to give the PD connected to this port the highest priority priority ports are served 18.5 Bandwidth Management Chapter 18 Configuration: Port Ingress Rate Limit (Kbps) Egress Rate Table 66 Configuration > Port > Bandwidth Management > Bandwidth Control > Edit 18.6 Storm Control Figure 85 Configuration > Port > Storm Control > Port > Edit Table 68 Configuration > Port > Storm Control > Port > Edit Displays the port list index number(s) Select Enable to activate traffic storm control on the port(s) Click the Enable checkbox to active the feature Configuration: VLAN 19.1 Overview 19.2 VLAN Table 70 Configuration > VLAN > VLAN > VLAN > Add VLAN List and up to one (secondary) Isolated private VLAN VLAN Association List Primary Table 71 Configuration > VLAN > VLAN > Port that the frames are forwarded to the VLAN group that the tag defines Ingress Check do not include this port in its member set VLAN Trunk Table 72 Configuration > VLAN > VLAN > Port > Edit (continued) Accepted Type This is the default setting dropped Ingress Filtering Figure 90 Configuration > VLAN > VLAN > VLAN Port Table 73 Configuration > VLAN > VLAN > VLAN Port Excluded Tagged Untagged 19.3 Guest VLAN Table 74 Configuration > VLAN > Guest VLAN > Global (continued) Guest VLAN ID Enter the global guest VLAN ID Figure 93 Configuration > VLAN > Guest VLAN > Port Table 75 Configuration > VLAN > Guest VLAN > Port 19.4 Voice VLAN Figure 95 Configuration > VLAN > Voice VLAN > Global Table 77 Configuration > VLAN > Voice VLAN > Global Select Enable to activate the global voice VLAN feature MVR VID, PVID etc. The allowed range is 1 to Displays the 802.1p packet priority field Figure 96 Configuration > VLAN > Voice VLAN > OUI Table 78 Configuration > VLAN > Voice VLAN > OUI Click Add to create a new OUI entry OUI Address hexadecimal digit) Table 79 Configuration > VLAN > Voice VLAN > OUI > Add/Edit Figure 98 Configuration > VLAN > Voice VLAN > Port Table 80 Configuration > VLAN > Voice VLAN > Port Table 80 Configuration > VLAN > Voice VLAN > Port (continued) modes are: Figure 99 Configuration > VLAN > Voice VLAN > Port > Add/Edit Table 81 Configuration > VLAN > Voice VLAN > Port > Add/Edit Displays the port(s) index value Configuration: MAC Table 20.1 Overview 20.2 MAC Table Static MAC > Add Filtering MAC Table 84 Configuration > MAC Table > Filtering MAC Filtering MAC Configuration > MAC Table > Filtering MAC Figure 103 Configuration > MAC Table > Filtering MAC > Add Table 85 Configuration > MAC Table > Filtering MAC > Add Figure 104 Configuration > MAC Table > Dynamic Age Table 86 Configuration > Dynamic Age Dynamic MAC Age Configuration: Link Aggregation 21.1 Overview 21.2 Link Aggregation Chapter 21 Configuration: Link Aggregation Figure 105 Configuration > Link Aggregation > Global Table 87 Configuration > Link Aggregation > Global LACP State Select Enable to activate the link aggregation control protocol Table 88 Configuration > Link Aggregation > LAG Management Click Add to create a new LAG Management entry Displays the name of the link aggregation group This field displays how these ports were added to the trunk group. It displays: Static - if the ports are configured as static members of a trunk group Table 89 Configuration > Link Aggregation > LAG Management > Add Select the link aggregation group (LAG) Enter the name of this entry Select Static or LACP Select the member ports to be part of the LAG Page Figure 110 Configuration > Link Aggregation > LACP Port Table 92 Configuration > Link Aggregation > LACP Port Displays the priority value Timer (sec) Displays the Timer value in seconds Table 93 Configuration > Link Aggregation > LACP Port > Edit Configuration: Loop Guard 22.1 Overview 22.2 Loop Guard Chapter 22 Configuration: Loop Guard Table 94 Configuration > Loop Guard (continued) Recovery Time detected (and the port action shuts down the port) Figure 113 Configuration > Loop Guard > Port Chapter 22 Configuration: Loop Guard Figure 114 Configuration > Loop Guard > Port > Edit Table 96 Configuration > Loop Guard > Port > Edit Configuration: Mirror 23.1 Overview 23.2 Mirror Chapter 23 Configuration: Mirror Table 97 Configuration > Mirror Mirroring Monitor Port monitor port Configuration: Multicast 24.1 Overview 24.2 IGMP Chapter 24 Configuration: Multicast Table 98 Configuration > Multicast > IGMP (continued) Snooping Select v2 or v3 depending on the snooping version you require Multicast Action Table 99 Configuration > Multicast > IGMP > VLAN (continued) Displays the switch current VLAN querier entry as Enable or Disable Displays the switch current VLAN querier entry version Configuration > Multicast > IGMP >VLAN > Edit to open this screen Table 100 Configuration > Multicast > IGMP > VLAN > Modify (continued) Enter the number of queries upstream port when an IGMP Done message is received IGMP Querier Select the IGMP querier status to Enable or Disable the function Figure 120 Configuration > Multicast > IGMP > Router Port > Add/Modify Table 102 Configuration > Multicast > IGMP > Router Port > Add/Modify IGMP Profile Table 104 Configuration > Multicast > IGMP > Profile > Add/Modify (continued) Enter the profile start group IP address Enter the profile end group IP address Select the action of the profile as to be Permit or Deny Throttling Figure 124 Configuration > Multicast > IGMP > Throttling > Add/Edit Table 106 Configuration > Multicast > IGMP > Throttling > Add/Edit Replace Configuration: Spanning Tree 25.1 Overview 25.2 Spanning Tree Chapter 25 Configuration: Spanning Tree Figure 125 Configuration > Spanning Tree Table 107 Configuration > Spanning Tree Select to Enable or Disable the Spanning-Treefunction BPDU Forward Figure 126 Configuration > Spanning Tree > STP Port Table 108 Configuration > Spanning Tree > STP Port Displays the index number of the STP port Display the status of the STP port as enabled or disabled External Cost Figure 127 Configuration > Spanning Tree > STP Port > Edit Table 109 Configuration > Spanning Tree > STP Port > Edit Enter the index number of the STP port(s) External Path Enter the external path cost. Enter 0 for Auto Figure 128 Configuration > Spanning Tree > CIST Table 110 Configuration > Spanning Tree > CIST CIST Instance Configure priority of CIST bridge ID Priority is part of bridge ID, used for CIST root bridge selection CIST Port Configuration > Spanning Tree > CIST Port Figure 129 Configuration > Spanning Tree > CIST Port Table 111 Configuration > Spanning Tree > CIST Port Displays the priority for each port here Figure 130 Configuration > Spanning Tree > CIST Port > Edit Table 112 Configuration > Spanning Tree > CIST Port > Edit STP CIST Port Configure the priority for each port here between 0 and 255 and the default value is Table 113 Configuration > Spanning Tree > MST (continued) Figure 132 Configuration > Spanning Tree > MST > Add/Modify Table 114 Configuration > Spanning Tree > MST > Add/Modify MST Port Configuration > Spanning Tree > MST Port Figure 133 Configuration > Spanning Tree > MST Port Table 115 Configuration > Spanning Tree > MST Port Select the MST port ID number from the dropdown list the properties of the MST ID Displays the index number of the MST port Figure 134 Configuration > Spanning Tree > MST Port > Edit Table 116 Configuration > Spanning Tree > MST Port > Edit STP MST Port Displays the MST ID number Enter the index number of the MTP port(s) Configuration: LLDP 26.1 Overview 26.2 LLDP Table 117 Configuration > LLDP > Global (continued) Transmission Enter the transmission interval value the Tx Interval value. Valid values are restricted to 5 - 32768 seconds Hold Multiplier Figure 136 Configuration > LLDP > Port Table 118 Configuration > LLDP > Port LLDP VLAN Displays the index number of the LLDP port Displays the mode of the LLDP port as Disable, Tx Only, Rx Only, or Tx & Rx Local Information Configuration > LLDP Figure 138 Configuration > LLDP > Local Information Table 120 Configuration > LLDP > Local Information Chassis ID System Name Displays the System Description Table 120 Configuration > LLDP > Local Information (continued) Capabilities Capabilities Supported describes the neighbor unit's capabilities. The possible Supported capabilities are: Figure 139 Configuration > LLDP > Local Information > Edit Table 121 Configuration > LLDP > Local Information > Edit Table 121 Configuration > LLDP > Local Information > Edit (continued) Location Coordinates Latitude Latitude SHOULD be normalized to within 0-90degrees with a maximum of 4 digits North Chapter 26 Configuration: LLDP Location ECS ELIN MED Network Policy Figure 140 Configuration > LLDP > MED Network Policy Figure 141 Configuration > LLDP > MED Network Policy > Add/Edit Table 123 Configuration > LLDP > MED Network Policy > Edit Select the index of network policy application types are shown below Voice - for use by dedicated IP Telephony handsets and other similar appli Table 123 Configuration > LLDP > MED Network Policy > Edit (continued) VLAN. Select Tagged or Untagged tag header as defined by IEEE 802.1Q-2003 Tagged: The device is using the IEEE 802.1Q tagged frame format eight priority levels (0 through 7) Table 124 Configuration > LLDP > MED Port (continued) Location Displays the Location value Displays the PoE value Inventory Table 125 Configuration > LLDP > MED Port > Edit (continued) Configuration: QoS 27.1 Overview 27.2 General Chapter 27 Configuration: QoS Table 126 Configuration > QoS > General QoS Port Displays the QoS port list CoS Value Queue Cos Mapping General > CoS Mapping Figure 147 Configuration > QoS > General > CoS Mapping Table 129 Configuration > QoS > General > CoS Mapping DSCP Mapping General IP Precedence Mapping General > IP Precedence Mapping Figure 149 Configuration > QoS > General > IP Precedence Mapping Table 131 Configuration > QoS > General > IP Precedence Mapping 27.3 Trust Mode Figure 151 Configuration > QoS > Trust Mode > Port Table 133 Configuration > QoS > Trust Mode > Port Displays the Trust status as Trust or Untrust Configuration > QoS > Trust Mode >Port > Edit to open this screen Figure 152 Configuration > QoS > Trust Mode > Port > Edit Table 134 Configuration > QoS > Trust Mode > Port > Edit Configuration: Security 28.1 Overview 28.2 Port Security Port Security > Port > Edit 28.3 Protected Port Figure 156 Configuration > Security > Protected Port Table 138 Configuration > Security > Protected Port Figure 157 Configuration > Security > Port Security > Port > Edit Table 139 Configuration > Security > Port Security > Port > Edit Displays the port list index value(s) 802.1X > Port Figure 159 Configuration > Security > 802.1X > Port Table 141 Configuration > Security > 802.1X > Port the properties of the port Displays the Trust status as enabled or disabled Reauthentication 28.5 DoS Figure 161 Configuration > Security > DoS > Global Table 143 Configuration > Security > DoS > Global Select the DoS security setting to be enabled or disabled DoS > Port Figure 162 Configuration > Security > DoS > Port Use this screen to configure the Port settings Click Configuration > Security > DoS > Port > Edit to open this screen Figure 163 Configuration > Security > DoS > Port > Edit Table 145 Configuration > Security > DoS > Port > Edit Configuration: AAA 29.1 Overview 29.2 Auth Method 29.3 RADIUS Figure 166 Configuration > AAA > RADIUS Table 148 Configuration > AAA > RADIUS Server Click Add to create a new Server entry Displays the server name(s) as an IP address or a domain name 29.4 TACACS+ Figure 168 Configuration > AAA > TACACS+ Table 150 Configuration > AAA > TACACS+ Displays the port number(s) as a value between 0 and Timeout Displays the priority as High or Low Table 151 Configuration > AAA > TACACS+ > Add/Modify Enter the port number(s) as a value between 0 and Enter the authentication key string: 0 - 63 ASCII alphanumeric characters Configuration: Management 30.1 Overview 30.2 Syslog Chapter 30 Configuration: Management Figure 171 Configuration > Management > Syslog > Local Table 153 Configuration > Management > Syslog > Local Click Add to create a new Local entry Displays the severity level of messages to be written to logs Table 154 Configuration > Management > Syslog > Local > Add/Modify (continued) Select the severity level of messages to be written to logs Figure 173 Configuration > Management > Syslog > Remote Table 155 Configuration > Management > Syslog > Remote Click Add to create a new Remote entry 30.3 SNMP Figure 175 Configuration > Management > SNMP Table 157 Configuration > Management > SNMP Select the global SNMP setting to be enabled or disabled Figure 176 Configuration > Management > SNMP > Community Table 158 Configuration > Management > SNMP > Community Figure 177 Configuration > Management > SNMP > Community > Add/Modify Table 159 Configuration > Management > SNMP > Community > Add/Modify Figure 178 Configuration > Management > SNMP > Group Table 160 Configuration > Management > SNMP > Group SNMPv3 Group Table 160 Configuration > Management > SNMP > Group (continued) Group Name Security Model Security Level Figure 179 Configuration > Management > SNMP > Group > Add/Modify Table 161 Configuration > Management > SNMP > Group > Add/Modify (continued) Figure 180 Configuration > Management > SNMP > User Table 162 Configuration > Management > SNMP > User SNMP User Click Add to create a new SNMP user Figure 181 Configuration > Management > SNMP > User > Add/Modify Table 163 Configuration > Management > SNMP > User > Add/Modify Auth Protocol Auth Password string length is 8 to 32. The allowed content is ASCII characters from 33 to Figure 182 Configuration > Management > SNMP > Trap Table 164 Configuration > Management > SNMP > Trap SNMP Trap SNMP Authfailure Trap State Table 165 Configuration > Management > SNMP > Trap Destination SNMP Trap Host >SNMP > Trap Destination > Add/Modify to open this screen Figure 184 Configuration > Management > SNMP > Trap Destination > Add/Modify Table 166 Configuration > Management > SNMP > Trap Destination > Add/Modify 30.4 Error Disable 30.5 HTTP/HTTPS 30.6 Users Figure 188 Configuration > Management > Users Table 170 Configuration > Management > Users User Clear Text Encrypted 30.7 Remote Access Control Table 172 Configuration > Management > Remote Access Control Select the global remote access setting to be enabled or disabled Click Add to create a new profile entry Displays the priority level of the entry. The value can be between 1 and Displays the action value. The values are Permit or Deny Management Access List Add Enter the priority level of the entry. The value can be between 1 and Select the action value. The values are Permit or Deny Source Select the source IP value. The options are ALL or IPv4/Wildcard Maintenance 31.1 Firmware Upgrade 31.2 Firmware Management 31.3Backup a Configuration File Maintenance Backup Figure 194 Maintenance > Configuration > Backup The following table describes the labels under Backup Table 176 Maintenance > Configuration > Backup 31.4Restore a Configuration File 31.5Manage Configuration Files 31.6 Reset to Factory Defaults 31.7 Network Diagnostics Figure 197 Maintenance > Diagnostics > Port Test Follow the steps to perform the port test 1.In Port Test, select the port number from the Port drop-downlist 2.Click Test to start the port test The test results are displayed in Test Results Follow the steps to perform a ping test 1.In IP Address, enter the IPv4 address 2.In Count, enter the number of ping packets 3.In Interval, enter the time interval in seconds 4.In Size, enter the packet size in bytes Trace Figure 200 Maintenance > Diagnostics > Trace The following table describes the labels in Trace Route Table 181 Maintenance > Diagnostics > Trace IP Addres 31.8 Reboot Troubleshooting 32.1Power, Hardware Connections, and LEDs 32.2Switch Access and Login •If you changed the IP address, use the new IP address I forgot the IP address for the Switch Section on page Make sure your Internet browser does not block Advanced Suggestions 32.3 Switch Configuration Legal Information Appendix A Legal Information Note Registration domain name 49, 91, 92, 96, 97, 98, 99, 100, 103 as DHCP servers 49, 91, 92, 96, 97, 98, 99, 100, 103 system name 36, 49, 91, 119, 120, 121