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INSTALLATION AND OPERATION MANUAL

CNGE28FX4TX24MSPOE+

(24) 10/100/1000 BASE-TX + (4) 1000BASE-FX

WITH POWER OVER ETHERNET (POE)

v1.4 Sept 2012

The ComNet

™

CNGE28FX4TX24MSPOE+ Managed Redundant Ring Ethernet Switch

provides robust transmission of (24) 10/100/1000BASE-T(X) ports and (4) 1000BASE-

FX ports of Ethernet data. Fully compliant with IEEE 802.3at, up to 720 watts of PoE or

PoE+ power is available for distribution across all 24 Base-TX ports. The four 1000BASE-

FX ports may be used with multimode or single-mode optical fiber when used with

ComNet SFPs. The exclusive C-Ring protects mission-critical applications from network

interruptions or temporary malfunctions with its fast recovery technology. eConsole,

a powerful, easy-to-use Windows-based utility, allows the CNGE28FX4TX24MSPOE+

to be centrally managed. Diverse media selection provides for easy implementation

of point-to-point, linear add-drop, drop-and-repeat, star, or true self-healing ring and

mesh network system architectures. The electrical ports support the 10/100/1000Mbps

Ethernet IEEE802.3 protocol, and auto-negotiating and auto-MDI/MDIX features

are included for simplicity and ease of installation. These network-managed layer 2

switches are optically (1000BASE-FX) and electrically compatible with any IEEE802.3

compliant Ethernet device. Unlike most Ethernet switches, the environmentally

hardened CNGE28FX4TX24MSPOE+ is designed for direct deployment in difficult

out-of-plant or roadside operating environments. Featuring a low-profile 1-RU high

rack-mountable package, these units may be mounted within any standard 19-inch

rack cabinet, and the high-capacity power supply for operation of the switch and PoE

PSE (Power Sourcing Equipment) is completely self-contained.

Summary of content (112 pages)

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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ (24) 10/100/1000 BASE-TX + (4) 1000BASE-FX with Power over Ethernet (PoE) v1.4 Sept 2012 The ComNet™ CNGE28FX4TX24MSPOE+ Managed Redundant Ring Ethernet Switch provides robust transmission of (24) 10/100/1000BASE-T(X) ports and (4) 1000BASEFX ports of Ethernet data. Fully compliant with IEEE 802.3at, up to 720 watts of PoE or PoE+ power is available for distribution across all 24 Base-TX ports.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Contents Regulatory Compliance Statement 3 Warranty 3 Disclaimer 3 Safety Indications 3 Overview 4 Introduction 4 Software Features 5 Hardware Features 6 Hardware Overview 7 Front Panel 7 Rear Panel 8 Rack mount kit assembly 9 Front Panel LEDs Cables 10 11 Ethernet Cables 11 100BASE-TX/10BASE-T Pin Assignments 11 SFP 13 Console Cable 14 WEB Management 16 Configuration by Web Browser 16 About Web-based Management 1
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Regulatory Compliance Statement Product(s) associated with this publication complies/comply with all applicable regulations. Please refer to the Technical Specifications section for more details. Warranty ComNet warrants that all ComNet products are free from defects in material and workmanship for a specified warranty period from the invoice date for the life of the installation.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Overview Introduction CNGE28FX4TX24MSPOE+ series is managed Redundant Ring Ethernet switch with 24 10/100/1000BASE-T(X) ports with PoE (PSE) function and 4x1000BASE-X SFP ports. With completely support of Ethernet Redundancy protocol, C-Ring (recovery time < 30ms over 250 units of connection), Legacy Ring and MSTP/RSTP/STP (IEEE 802.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Software Features »» Supports C-Ring (recovery time < 30ms over 250 units of connection), MSTP/RSTP/STP (IEEE 802.1s/w/D) for Ethernet Redundancy »» Support Jumbo frame up to 9K Bytes »» 24 port 10/100/1000BASE-T(X) PSE fully compliant with IEEE802.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Hardware Features »» One 100~240VAC power input for CNGE28FX4TX24MSPOE+ »» Operating Temperature: -40º to 75ºC »» Storage Temperature: -40º to 85ºC »» Operating Humidity: 5% to 95%, non-condensing »» Casing: IP-20 »» 24 × 10/100/1000BASE-T(X) »» 4 × 1000 BASE-X SFP »» Console Port support Command Line Interface(CLI) »» Dimensions: 431 (W) x 342 (D) x 44 (H) mm INS_CNGE28FX4TX24MSPOE+_REV– Tech Support: 1.888.678.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Hardware Overview Front Panel The following table describes the labels that are applied to the CNGE28FX4TX24MSPOE+ Port Description Gigabit SFP ports 4 1000BASE-X on SFP port Gigabit Ethernet Ports 24 10/100/1000 BASE-T(X) Ports in RJ45 Auto MDI/MDIX with PSE Console Use RS-232 with DB-9 connecter to manage switch. 1 2 3 4 5 8 6 7 8 CNGE28FX4TX24MSPOE+ Front Panel 1. Console port (DB-9) 2.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ »» Ring Master Indicator (R.M.): Indicates system being operated in C-Ring Master mode »» C-Ring Indicator (Ring): Indicates system being operated in C-Ring mode. Blinking indicates Ring is broken.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Rack mount kit assembly You can find the rack mount kit and the screws in the packing box. Please assembly the rack mount kit on the switch with screws as below picture. INS_CNGE28FX4TX24MSPOE+_REV– Tech Support: 1.888.678.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Front Panel LEDs LED indicators Label Definition Indicator(s) PWR Power Green: For power indicator STA System Ready Green: Indicate system ready. Blinking: System is upgrading firmware. R.M. Ring Master Green: Indicate system operated in C-Ring Master mode Ring C-Ring Green: Indicate system operated in C-Ring mode Blinking: Ring is broken.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Cables Ethernet Cables The CNGE28FX4TX24MSPOE+ switch has standard Ethernet ports. According to the link type, the switch uses CAT 3, 4, 5,5e UTP cables to connect to any other network device (PCs, servers, switches, routers, or hubs). Please refer to the following table for cable specifications. Cable Types and Specifications Cable Type Max. Length Connector 10BASE-T Cat. 3, 4, 5 100Ω UTP 100m (328ft) RJ-45 100BASE-TX Cat.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ 1000 BASE-T RJ-45 Pin Assignments Pin Number Assignment 1 BI_DA+ with PoE Power input + 2 BI_DA- with PoE Power input + 3 BI_DB+ with PoE Power input - 4 BI_DC+ 5 BI_DC- 6 BI_DB- with PoE Power input - 7 BI_DD+ 8 BI_DD- The CNGE28FX4TX24MSPOE+ switch will support auto MDI/MDI-X operation. You can use a straight-through cable to connect a PC to the switch.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ 1000 BASE-T MDI/MDI-X pins assignment Pin Number MDI port MDI-X port 1 BI_DA+ BI_DB+ 2 BI_DA- BI_DB- 3 BI_DB+ BI_DA+ 4 BI_DC+ BI_DD+ 5 BI_DC- BI_DD- 6 BI_DB- BI_DA- 7 BI_DD+ BI_DC+ 8 BI_DD- BI_DC- Note: “+” and “-” signs represent the polarity of the wires that make up each wire pair. SFP The Switch has fiber optical ports with SFP connectors. The fiber optical ports are in multi-mode (0 to 550M, 850 nm with 50/125 µm, 62.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Console Cable The CNGE28FX4TX24MSPOE+ switch can be managed by a PC connected to the console port using the included DB-9 cable. DB-9 Cable INS_CNGE28FX4TX24MSPOE+_REV– Tech Support: 1.888.678.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ 5 1 9 6 DB-9 Male 1 5 6 9 DB-9 Female Pin Male Connector Female Connector 1 Received Line Signal Detect (Received by DTE Device) Received Line Signal Detect (Transmitted from DCE Device) 2 Received Data (Received by DTE Device) Transmitted Data (Transmitted from DCE Device) 3 Transmitted Data (Transmitted from DTE Device) Received Data (Received by DCE Device) 4 DTE Ready (Transmitted from DTE Device) DTE Ready (Received by DCE De
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ WEB Management Attention: While installing and upgrading firmware, please remove physical loop connection first. DO NOT power off equipment while the firmware is upgrading! Configuration by Web Browser This section reviews configuration by the Web browser. About Web-based Management An embedded HTML web site resides in the flash memory on the CPU board.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ System Login 1. Launch Internet Explorer. 2. Type http://192.168.10.1 and the IP address of the switch. Press Enter. 3. The login screen appears. 4. Enter username and password. The default username and password is admin. 5. Select Enter or OK button, then the main interface of the Web-based management appears. Login screen INS_CNGE28FX4TX24MSPOE+_REV– Tech Support: 1.888.678.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Main Interface Main interface 4.1.2 Basic Setting 4.1.2.1 System Information The switch system information is provided here. System Information interface INS_CNGE28FX4TX24MSPOE+_REV– Tech Support: 1.888.678.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Label Description System Contact The text identification of the contact person for this managed node, together with information on how to contact this person. The allowed string length is 0 to 255, and the allowed content is the ASCII characters from 32 to 126. System Name An administratively assigned name for this managed node. By convention, this is the node’s fully qualified domain name.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ IP Setting Configure the switch-managed IP information on this page. Label Description DHCP Client Enable the DHCP client by checking this box. If DHCP fails and the configured IP address is zero, DHCP will retry. If DHCP fails and the configured IP address is non-zero, DHCP will stop and the configured IP settings will be used. The DHCP client will announce the configured System Name as hostname to provide DNS lookup.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ HTTPS Label Description Mode Indicates the HTTPS mode operation. Possible modes are: Enabled: Enable HTTPS mode operation. Disabled: Disable HTTPS mode operation. Automatic Redirect Indicates the HTTPS redirect mode operation. Automatic redirect web browser to HTTPS during HTTPS mode enabled. Possible modes are: Enabled: Enable HTTPS redirect mode operation. Disabled: Disable HTTPS redirect mode operation. Save Select to save changes.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ LLDP LLDP Parameters This page allows the user to inspect and configure the current LLDP port settings. Label Description TX Interval The switch is periodically transmitting LLDP frames to its neighbor’s for having the network discovery information up-to-date. The interval between each LLDP frame is determined by the TX Interval value. Valid values are restricted to 5 - 32768 seconds.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ LLDP Port Configuration Label Description Port The switch port number of the logical LLDP port. Mode Select LLDP mode. Rx only The switch will not send out LLDP information, but LLDP information from neighbor units is analyzed. TX only The switch will drop LLDP information received from neighbor’s, but will send out LLDP information. Disabled The switch will not send out LLDP information, and will drop LLDP information received from neighbor’s.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ LLDP Neighbor Information This page provides a status overview for all LLDP neighbors. The displayed table contains a row for each port on which an LLDP neighbor is detected. The columns hold the following information: Label Description Local Port The port on which the LLDP frame was received. Chassis ID The Chassis ID is the identification of the neighbor’s LLDP frames.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ LLDP Statistics This page provides an overview of all LLDP traffic. Two types of counters are shown. Global counters are counters that refer to the whole stack, switch, while local counters refer to counters for the currently selected switch. Global Counters Label Description Neighbor Shows the time for when the last entry was last deleted or added. It is entries were last also shows the time elapsed since last change was detected.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Local Counters Label Description Local Port The port on which LLDP frames are received or transmitted. TX Frames The number of LLDP frames transmitted on the port. Rx Frames The number of LLDP frames received on the port. Rx Errors The number of received LLDP frames containing some kind of error. Frames DiscardedIf an LLDP frame is received on a port, and the switch’s internal table has run full, the LLDP frame is counted and discarded.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Backup/Restore Configuration You can save/view or load the switch configuration. The configuration file is in XML format with a hierarchy of tags: Firmware Update This page facilitates an update of the firmware controlling the stack. switch. DHCP Server Setting The system provides with DHCP server function. Enable the DHCP server function; the switch system will be a DHCP server. INS_CNGE28FX4TX24MSPOE+_REV– Tech Support: 1.888.678.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ DHCP Dynamic Client List When the DHCP server function is activated, the system will collect the DHCP client information and display in here. DHCP Client List You can assign the specific IP address that is in the assigned dynamic IP range to the specific port. When the device is connecting to the port and asks for dynamic IP assigning, the system will assign the IP address that has been assigned before in the connected device.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Label Description Port This is the logical port number for this row. Link The current link state is displayed graphically. Green indicates the link is up and red that it is down. Current Link Speed Provides the current link speed of the port. Configured Link Select any available link speed for the given switch port. Speed Auto Speed selects the highest speed that is compatible with a link partner. Disabled disables the switch port operation.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Rate Limit Configure the switch port rate limit for Police and Shapers on this page. Label Description Port The logical port for the settings contained in the same row. Policer Enabled Enable or disable the port policer. The default value is “Disabled”. Policer Rate Configure the rate for the port policer. The default value is “500”.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Port Trunk Trunk Configuration This page is used to configure the Aggregation hash mode and the aggregation group. Label Description Source MAC Address The Source MAC address can be used to calculate the destination port for the frame. Check to enable the use of the Source MAC address, or uncheck to disable. By default, Source MAC Address is enabled.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Label Description Group ID Indicates the group ID for the settings contained in the same row. Group ID “Normal” indicates there is no aggregation. Only one group ID is valid per port. Port Members Each switch port is listed for each group ID. Select a radio button to include a port in an aggregation, or clear the radio button to remove the port from the aggregation. By default, no ports belong to any aggregation group.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ LACP Port Configuration This page allows the user to inspect the current LACP port configurations, and possibly change them as well. Label Description Port Indicates the group ID for the settings contained in the same row. Group ID “Normal” indicates there is no aggregation. Only one group ID is valid per port. LACP Enabled Each switch port is listed for each group ID.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ LACP System Status This page provides a status overview for all LACP instances. Label Description Aggr ID The Aggregation ID associated with this aggregation instance. For LLAG the id is shown as ‘isid:aggr-id’ and for GLAGs as ‘aggr-id’ Partner System ID The system ID (MAC address) of the aggregation partner. Partner Key The Key that the partner has assigned to this aggregation ID. Last Changed The time since this aggregation changed.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ LACP Status This page provides a status overview for LACP status for all ports. Label Description Port The switch port number. LACP ‘Yes’ means that LACP is enabled and the port link is up. ‘No’ means that LACP is not enabled or that the port link is down. ‘Backup’ means that the port could not join the aggregation group but will join if other port leaves. Meanwhile it’s LACP status is disabled. Key The key assigned to this port.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Label Description Port The switch port number LACP Transmitted Shows how many LACP frames have been sent from each port LACP Received Shows how many LACP frames have been received at each port. Discarded Shows how many unknown or illegal LACP frames have been discarded at each port. Refresh Select to refresh the page immediately. Auto-refresh Check this box to enable an automatic refresh of the page at regular intervals.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Label Description Redundant Ring Mark to enable Ring. Ring Master There should be one and only one Ring Master in a ring. However if there are two or more switches that set the Ring Master to enable, the switch with the lowest MAC address will be the actual Ring Master and others will be Backup Masters. 1st Ring Port The primary port, when this switch is Ring Master. 2nd Ring Port The backup port, when this switch is Ring Master.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Legacy Ring Legacy ring provides support for the switch to be used in an existing ring of ComNet X-Ring enabled switches. X-Ring provides a faster redundant recovery than Spanning Tree topology. The action is similar to STP or RSTP, but the algorithms between them are not the same. In the X-Ring topology, every switch should be enabled with X-Ring or Legacy Ring function and two ports should be assigned as the member ports in the ring.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ MSTP Bridge Settings This page allows you to configure RSTP system settings. The settings are used by all RSTP Bridge instances in the Switch Stack. Label Description Protocol Version The STP protocol version setting. Valid values are STP, RSTP and MSTP. Forward Delay The delay used by STP Bridges to transition Root and Designated Ports to Forwarding (used in STP compatible mode). Valid values are in the range 4 to 30 seconds.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ MSTI Mapping This page allows the user to inspect the current STP MSTI bridge instance priority configurations, and possibly change them as well. Label Description Configuration Name The name identifiying the VLAN to MSTI mapping. Bridges must share the name and revision (see below), as well as the VLAN-to-MSTI mapping configuration in order to share spanning trees for MSTI’s. (Intra-region). The name is at most 32 characters.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ MSTI Priorities This page allows the user to inspect the current STP MSTI bridge instance priority configurations, and possibly change them as well. Label Description MSTI The bridge instance. The CIST is the default instance, which is always active. Priority Controls the bridge priority. Lower numerical values have better priority.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ CIST Ports This page allows the user to inspect the current STP CIST port configurations, and possibly change them as well. This page contains settings for physical and aggregated ports. The aggregation settings are stack global. INS_CNGE28FX4TX24MSPOE+_REV– Tech Support: 1.888.678.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Label Description Port The switch port number of the logical STP port. STP Enabled Controls whether STP is enabled on this switch port. Path Cost Controls the path cost incurred by the port. The Auto setting will set the path cost as appropriate by the physical link speed, using the 802.1D recommended values. Using the Specific setting, a user-defined value can be entered.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ MSTI Ports This page allows the user to inspect the current STP MSTI port configurations, and possibly change them as well. A MSTI port is a virtual port, which is instantiated separately for each active CIST (physical) port for each MSTI instance configured and applicable for the port. The MSTI instance must be selected before displaying actual MSTI port configuration options. This page contains MSTI port settings for physical and aggregated ports.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ STP Bridges This page provides a status overview for all STP bridge instances. The displayed table contains a row for each STP bridge instance, where the column displays the following information: Label Description MSTI The Bridge Instance. This is also a link to the STP Detailed Bridge Status. Bridge ID The Bridge ID of this Bridge instance. Root ID The Bridge ID of the currently elected root bridge.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ STP Port Status This page displays the STP CIST port status for port physical ports in the currently selected switch. Label Description Port The switch port number of the logical STP port. CIST Role The current STP port role of the CIST port. The port role can be one of the following values: AlternatePort BackupPort RootPort DesignatedPort. State The current STP port state of the CIST port.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ STP Statistics This page displays the RSTP port statistics counters for bridge ports in the currently selected switch. Label Description Port The switch port number of the logical RSTP port. RSTP The number of RSTP Configuration BPDU’s received/transmitted on the port. STP The number of legacy STP Configuration BPDU’s received/transmitted on the port.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ VLAN VLAN Membership Configuration The VLAN membership configuration for the selected stack switch unit switch can be monitored and modified here. Up to 64 VLANs are supported. This page allows for adding and deleting VLANs as well as adding and deleting port members of each VLAN. Label Description Delete Check to delete the entry. It will be deleted during the next save. VLAN ID The VLAN ID for the entry.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Example: Portbased VLAN Setting (For ingress port) 1. VLAN Membership Configuration setting port 1 & VID=50 2. VLAN Port 1 Configurations-->Disable VLAN Aware 3. VLAN Port 1 Configuration-->Mode=specific,ID=50 INS_CNGE28FX4TX24MSPOE+_REV– Tech Support: 1.888.678.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ (For egress port) 1. VLAN Membership Configuration setting port 2 & VID=50 2. VLAN Port 2 Configuration-->don’t care VLAN Aware 3. VLAN Port 2 Configuration-->Mode=specific, ID=50 (Any packet can enter egress port ) INS_CNGE28FX4TX24MSPOE+_REV– Tech Support: 1.888.678.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ 802.1Q Access port Setting (For ingress port) 1. VLAN Membership Configuration setting port & VID=50 2. VLAN Port Configurations-->Enable VLAN Aware 1. VLAN Port Configuration-->Mode=specific,ID=50 Table 5 – UTC Time Zones Tech Support: 1.888.678.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ (For egress port) 1. VLAN Membership Configuration setting port & VID=50 2. VLAN Port Configurations-->Disable VLAN Aware 3. VLAN Port Configuration-->Mode=specific,ID=50 (Untagged & tag=50 packet can enter egress port ) INS_CNGE28FX4TX24MSPOE+_REV– Tech Support: 1.888.678.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ 802.1Q Trunk port setting (multi-tag) P1 PC A P2 CNGE28FX4TX24MSPOE+ P6 P5 CNGE28FX4TX24MSPOE+ PC B (For ingress port) 1. VLAN Membership Configuration setting port & VID=11,22,33 2. VLAN Port Configurations-->Enable VLAN Aware 3.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ (For egress port) 1. VLAN Membership Configuration setting port, VID=11,22,33 2. VLAN Port Configurations-->Enable VLAN Aware 3. VLAN Port Configuration-->Mode=none (Egress port can receive tag=11,22,33 packet In addition, only tag=11 packet can enter egress port) INS_CNGE28FX4TX24MSPOE+_REV– Tech Support: 1.888.678.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ QinQ VLAN Setting PC P3 P2 CNGE28FX4TX24MSPOE+ Tag=50 (tag=77) packet P1 PC ingress Port 1------------------->egress Port 2 (For Ingress port----- Port 1) 1. VLAN Membership Configuration setting port 1, 2 and 3 & VID=50 2. VLAN Port Configuration-->Disable Port 1 VLAN Aware INS_CNGE28FX4TX24MSPOE+_REV– Tech Support: 1.888.678.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ 3. VLAN Port Configuration-->Port 1 Mode=specific, ID=50 (For egress port ----Port 2) 1. VLAN Membership Configuration setting port & VID=50 2. VLAN Port Configuration-->Enable Port 2 and 3 VLAN Aware. INS_CNGE28FX4TX24MSPOE+_REV– Tech Support: 1.888.678.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ 3. VLAN Port Configuration-->Mode=none (only tag=50 packet can enter egress port ) Private VLAN The Private VLAN membership configurations for the switch can be monitored and modified here. Private VLANs can be added or deleted here. Port members of each Private VLAN can be added or removed here. Private VLANs are based on the source port mask, and there are no connections to VLANs. This means that VLAN IDs and Private VLAN IDs can be identical.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Label Description Delete Check to delete the entry. It will be deleted during the next save. Private VLAN ID Indicates the ID of this particular private VLAN. MAC Address The MAC address for the entry. Port Members A row of check boxes for each port is displayed for each private VLAN ID. To include a port in a Private VLAN, check the box. To remove or exclude the port from the Private VLAN, make sure the box is unchecked.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ SNMP SNMP-System Label Description Mode Indicates the SNMP mode operation. Possible modes are: Enabled: Enable SNMP mode operation. Disabled: Disable SNMP mode operation. Version Indicates the SNMP supported version. Possible versions are: SNMP v1: Set SNMP supported version 1. SNMP v2c: Set SNMP supported version 2c. SNMP v3: Set SNMP supported version 3. Read Community Indicates the community read access string to permit access to SNMP agent.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Label Description Trap Mode Indicates the SNMP trap mode operation. Possible modes are: Enabled: Enable SNMP trap mode operation. Disabled: Disable SNMP trap mode operation. Trap Version Indicates the SNMP trap supported version. Possible versions are: SNMP v1: Set SNMP trap supported version 1. SNMP v2c: Set SNMP trap supported version 2c. SNMP v3: Set SNMP trap supported version 3.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Trap Probe Security Engine ID Indicates the SNMP trap probe security engine ID mode of operation. Possible values are: Enabled: Enable SNMP trap probe security engine ID mode of operation. Disabled: Disable SNMP trap probe security engine ID mode of operation. Trap Security Engine ID Indicates the SNMP trap security engine ID. SNMPv3 sends traps and informs using USM for authentication and privacy.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ SNMP-Users Configure SNMPv3 users table on this page. The entry index keys are Engine ID and User Name. INS_CNGE28FX4TX24MSPOE+_REV– Tech Support: 1.888.678.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Label Description Delete Check to delete the entry. It will be deleted during the next save. Engine ID An octet string identifying the engine ID that this entry should belong to. The string must contain an even number between 10 and 64 hexadecimal digits, but all-zeros and all-’F’s are not allowed.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ SNMP-Groups Configure SNMPv3 groups table on this page. The entry index keys are Security Model and Security Name. Label Description Delete Check to delete the entry. It will be deleted during the next save. Security Model Indicates the security model that this entry should belong to. Possible security models are: v1: Reserved for SNMPv1. v2c: Reserved for SNMPv2c. usm: User-based Security Model (USM).
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ SNMP-Views Configure SNMPv3 views table on this page. The entry index keys are View Name and OID Subtree. Label Description Delete Check to delete the entry. It will be deleted during the next save. View Name A string identifying the view name that this entry should belong to. The allowed string length is 1 to 32, and the allowed content is the ASCII characters from 33 to 126. View Type Indicates the view type that this entry should belong to.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ SNMP-Accesses Configure SNMPv3 accesses table on this page. The entry index keys are Group Name, Security Model and Security Level. Label Description Delete Check to delete the entry. It will be deleted during the next save. Group Name A string identifying the group name that this entry should belong to. The allowed string length is 1 to 32, and the allowed content is the ASCII characters from 33 to 126.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Traffic Prioritization Port Configuration This page allows you to configure QoS settings for each port. Frames can be classified by 4 different QoS classes: Low, Normal, Medium, and High. The classification is controlled by a QCL that is assigned to each port. A QCL consists of an ordered list of up to 12 QCEs. Each QCE can be used to classify certain frames to a specific QoS class.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ QoS Control List This page lists the QCEs for a given QCL. Frames can be classified by 4 different QoS classes: Low, Normal, Medium, and High. The classification is controlled by a QoS assigned to each port. A QCL consists of an ordered list of up to 12 QCEs. Each QCE can be used to classify certain frames to a specific QoS class. This classification can be based on parameters such as VLAN ID, UDP/TCP port, IPv4/IPv6 DSCP or Tag Priority.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Label Description QCL# Select a QCL to display a table that lists all the QCEs for that particular QCL. QCE Type Specifies which frame field the QCE processes to determine the QoS class of the frame. The following QCE types are supported: Ethernet Type: The Ethernet Type field. If frame is tagged, this is the Ethernet Type that follows the tag header. VLAN ID: VLAN ID. Only applicable if the frame is VLAN tagged.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Storm Control Storm control for the switch is configured on this page. There is a unicast storm rate control, multicast storm rate control, and a broadcast storm rate control. These only affect flooded frames, i.e. frames with a (VLAN ID, DMAC) pair not present on the MAC Address table. The rate is 2^n, where n is equal to or less than 15, or “No Limit”. The unit of the rate can be either PPS (packets per second) or KPPS (kilopackets per second).
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Wizard This handy wizard helps you set up a QCL quickly. Label Description Set up Port Policies Group ports into several types according to different QCL policies. Set up Set up the specific QCL for different typical network application Typical Network quality control. Application Rules Set up ToS Precedence Mapping Set up the traffic class mapping to the precedence part of ToS (3 bits) when receiving IPv4/IPv6 packets.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Multicast IGMP Snooping This page provides IGMP Snooping related configuration. Label Description Snooping Enabled Enable the Global IGMP Snooping. Unregistered IPMC Flooding enabled Enable unregistered IPMC traffic flooding. VLAN ID The VLAN ID of the entry. IGMP Snooping Enabled Enable the per-VLAN IGMP Snooping. IGMP Querier Enable the IGMP Querier in the VLAN.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ IGMP Snooping Status Label Description VLAN ID The VLAN ID of the entry. Groups The present IGMP groups. Max. are 128 groups for each VLAN. Port Members The ports that are members of the entry. Querier Status Show the Querier status is “ACTIVE” or “IDLE”. Querier Receive The number of Transmitted Querier. V1 Reports Receive The number of Received V1 Reports. V2 Reports Receive The number of Received V2 Reports.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Security ACL Configure the ACL parameters (ACE) of each switch port. These parameters will affect frames received on a port unless the frame matches a specific ACE. Label Description Port The logical port for the settings contained in the same row. Policy ID Select the policy to apply to this port. The allowed values are 1 through 8. The default value is 1. Action Select whether forwarding is permitted (“Permit”) or denied (“Deny”).
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ 802.1x This page allows you to configure how an administrator is authenticated when he logs into the switch-stack via TELNET, SSH or the web pages. Client Configuration INS_CNGE28FX4TX24MSPOE+_REV– Tech Support: 1.888.678.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ The table has one row for each Client and a number of columns, which are: Label Description Client The Client for which the configuration below applies. Authentication Method Authentication Method can be set to one of the following values: none: authentication is disabled and login is not possible. local: use the local user database on the switch stack for authentication. radius: use a remote RADIUS server for authentication.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ RADIUS Authentication Server Configuration The table has one row for each RADIUS Authentication Server and a number of columns, which are: Label Description # The RADIUS Authentication Server number for which the configuration below applies. Enable Enable the RADIUS Authentication Server by checking this box. IP Address Enable fallback to local authentication by checking this box.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Configure aging time by entering a value here in seconds; for example, Age time seconds. The allowed range is 10 to 1000000 seconds. Disable the automatic aging of dynamic entries by checking Disable automatic aging. MAC Table Learning If the learning mode for a given port is grayed out, another module is in control of the mode, so that the user cannot change it. An example of such a module is the MAC-Based Authentication under 802.1X.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Static MAC Table Configuration The static entries in the MAC table are shown in this table. The static MAC table can contain 64 entries. The maximum of 64 entries is for the whole stack, and not per switch. The MAC table is sorted first by VLAN ID and then by MAC address. Label Description Delete Check to delete the entry. It will be deleted during the next save. VLAN ID The VLAN ID for the entry. MAC Address The MAC address for the entry.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Label Description Port The logical port for the settings contained in the same row. Mode Select mirror mode. Rx only: Frames received at this port are mirrored to the mirror port. Frames transmitted are not mirrored. TX only: Frames transmitted from this port are mirrored to the mirror port. Frames received are not mirrored. Disabled: Neither frames transmitted nor frames received are mirrored.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ System Log Information The switch system log information is provided here. Label Description ID The ID (>= 1) of the system log entry. Level The level of the system log entry. The following level types are supported: Info: Information level of the system log. Warning: Warning level of the system log. Error: Error level of the system log. All: All levels. Time The time of the system log entry. Message The MAC Address of this switch.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Detailed Log The switch system detailed log information is provided here. Label Description ID The ID (>= 1) of the system log entry. Message The detailed messages of the system log entry. Refresh Updates the system log entries, starting from the current entry ID. Clear Flushes all system log entries. |<< Updates the system log entries, starting from the first available entry ID.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Traffic Overview This page provides an overview of general traffic statistics for all switch ports. Label Description Port The logical port for the settings contained in the same row. Packets The number of received and transmitted packets per port. Bytes The number of received and transmitted bytes per port. Errors The number of frames received in error and the number of incomplete transmissions per port.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Detailed Statistics This page provides detailed traffic statistics for a specific switch port. Use the port select box to select which switch port details to display. The displayed counters are the totals for receive and transmit, the size counters for receive and transmit, and the error counters for receive and transmit. Detailed Statistics-Receive & Transmit Total INS_CNGE28FX4TX24MSPOE+_REV– Tech Support: 1.888.678.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Label Description Rx and TX Packets The number of received and transmitted (good and bad) packets. Rx and TX Octets The number of received and transmitted (good and bad) bytes. Includes FCS, but excludes framing bits. Rx and TX Unicast The number of received and transmitted (good and bad) unicast packets. Rx and TX Multicast The number of received and transmitted (good and bad) multicast packets.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Ping This page allows you to issue ICMP PING packets to troubleshoot IP connectivity issues. After you press Start, 5 ICMP packets are transmitted, and the sequence number and roundtrip time are displayed upon reception of a reply. The page refreshes automatically until responses to all packets are received, or until a timeout occurs. PING6 server::10.10.132.20 64 bytes from::10.10.132.20: icmp_seq=0, time=0ms 64 bytes from::10.10.132.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Cable Diagnostics This page is used for running the VeriPHY Cable Diagnostics. Press Start to run the diagnostics. This will take approximately 5 seconds. If all ports are selected, this can take approximately 15 seconds. When completed, the page refreshes automatically, and you can view the cable diagnostics results in the cable status table. Note that VeriPHY is only accurate for cables of length 7 - 140 meters.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Power over Ethernet (PoE) PoE Configuration - Reserved Power determined There are three modes for configuring how the ports/PDs may reserve power. Label Description Allocated mode In this mode the user allocates the amount of power that each port may reserve. The allocated/reserved power for each port/PD is specified in the Maximum Power fields.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ PoE Configuration - Power management Mode There are 2 modes for configuring when to the ports is shut down. Label Description Actual Consumption In this mode the ports are shut down when the actual power consumption for all ports exceeds the amount of power that the power supply can deliver or if the actual power consumption for a given port exceeds the reserved power for that port. The ports are shut down according to the ports priority.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ PoE Configuration - Primary/backup Power Supply PoE can have two power supplies. One is used as primary power source, and one as backup power source. In case that the primary power source fails the backup power source will take over. For being able to determine the amount of power the PD may use, it must be defined what amount of power the primary and backup power sources can deliver.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ PoE Configuration - Port Configuration User can configure every port’s PoE Setting Label Description PoE Enable The PoE Enabled represents whether the PoE is enable for the port. Priority The Priority represents the ports priority. There are three levels of power priority named Low, High and Critical. The priority is used in the case where the remote devices require more power than the power supply can deliver.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Power over Ethernet Status This page allows the user to inspect the current status for all PoE ports. Label Description Local Port This is the logical port number for this row. Power Reserved The Power Reserved shows how much the power the PD has reserved. Power Used The Power Used shows how much power the PD currently is using. Current Used The Power Used shows how much current the PD currently is using.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ LLDP Power Over Ethernet Neighbor This page provides a status overview for all LLDP PoE neighbors. The displayed table contains a row for each port on which an LLDP PoE neighbor is detected. The columns hold the following information: Label Description Local Port The port for this switch on which the LLDP frame was received. Power Type The Type represents whether the device is a Power Sourcing Entity (PSE) or Power Device (PD).
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Factory Defaults You can reset the configuration of the stack switch on this page. Only the IP configuration is retained. Label Description Yes Select to reset the configuration to Factory Defaults. No Select to return to the Port State page without resetting the configuration System Reboot You can reset the stack switch on this page.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Command Line Interface Management About CLI Management Besides WEB-based management, the CNGE28FX4TX24MSPOE+ also support CLI management. You can use console or telnet to management switch by CLI. CLI Management by RS-232 Serial Console (115200, 8, none, 1, none) Before Configuring by RS-232 serial console, use an DB-9-M to DB-9-F cable to connect the switches’ RS-232 Console port to your PC COM port.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Step 3. Select to use COM port number Step 4. The COM port properties setting, 115200 for baud rate, 8 for Data bits, None for Parity, 1 for Stop bits and none for Flow control. INS_CNGE28FX4TX24MSPOE+_REV– Tech Support: 1.888.678.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Step 5. The Console login screen will appear. Use the keyboard to enter the Username and Password (The same with the password for Web Browser), and then press Enter. INS_CNGE28FX4TX24MSPOE+_REV– Tech Support: 1.888.678.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ CLI Management by Telnet Users can use “TELNET” to configure the switches. The default value is as below: IP Address: 192.168.10.1 Subnet Mask: 255.255.255.0 Default Gateway: 192.168.10.254 User Name: admin Password: admin Follow the steps below to access the console via Telnet. Step 1. Telnet to the IP address of the switch from the Windows “Run“ command (or from the MS-DOS prompt) as below. Step 2. The Login screen will appear.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Commander Groups System System> Configuration [all] [] Reboot Restore Default [keep_ip] Contact [] Name [] Location [] Description [] Password Username [] Timezone [] Log [] [all|info|warning|error] [clear] INS_CNGE28FX4TX24MSPOE+_REV– Tech Support: 1.888.678.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Syslog Syslog> ServerConfiguration [] IP> Configuration DHCP [enable|disable] Setup [] [] [] [] Ping [] SNTP [] Auth> Configuration Timeout [] Deadtime [] RADIUS [] [enable|disable] [] [] [] ACCT_RADIUS [] [enable|disable] [] [] [] Client [
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Aggr Aggr> Configuration Add [] Delete Lookup [] Mode [smac|dmac|ip|port] [enable|disable] LACP> Configuration [] Mode [] [enable|disable] Key [] [] Role [] [active|passive] Status [] Statistics [] [clear] LACP INS_CNGE28FX4TX24MSPOE+_REV– Tech Support: 1.888.678.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ STP STP> Configuration Version [] Non-certified release, v TXhold []lt 15:15:15, Dec 6 2007 MaxAge [] FwdDelay [] bpduFilter [enable|disable] bpduGuard [enable|disable] recovery [] CName [] [] Status [] [] Msti Priority [] [] Msti Map [] [clear] Msti Add Port Configuration [] Port Mode [] [enable|disable] Por
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ IGMP IGMP> Configuration [] Mode [enable|disable] State [] [enable|disable] Querier [] [enable|disable] Fastleave [] [enable|disable] Router [] [enable|disable] Flooding [enable|disable] Groups [] Status [] LLDP> Configuration [] Mode [] [enable|disable|rx|TX] Optional_TLV [][port_descr|sys_name|sys_descr|sys_ capa|mgmt_addr] [enable|disable] Interval []
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ VLAN VLAN> Configuration [] Aware [] [enable|disable] PVID [] [|none] FrameType [] [all|tagged] Add [] Delete Lookup [] PVLAN> Configuration [] Add [] Delete Lookup [] Isolate [] [enable|disable] QoS> Configuration [] Classes [] Default [] [] Tagprio [] [
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ ACL ACL> Configuration [] Action [] [permit|deny] [] [] [] [] Policy [] [] Rate [] [] Add [] [] [switch | (port ) | (policy )] [] [] [] [(etype [] [] []) | (arp [] [] [] [] []) | (ip [] [] [] [
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ SNMP SNMP> Trap Inform Retry Times [] Trap Probe Security Engine ID [enable|disable] Trap Security Engine ID [] Trap Security Name [] Engine ID [] Community Add [] [] Community Delete Community Lookup [] User Add [MD5|SHA] [] [DES] [] User Delete User Changekey [
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Technical Specifications Physical Ports 10/100/1000 BASE-T(X) Ports in RJ45. Auto MDI/MDIX with PSE 24 1000BASE-X SFP Port 4 Technology Ethernet Standards IEEE 802.3 for 10BASE-T, IEEE 802.3u for 100BASE-TX, IEEE 802.3ab for 1000BASE-T IEEE 802.z for 1000BASE-X IEEE 802.3x for Flow control IEEE 802.3ad for LACP (Link Aggregation Control Protocol) IEEE 802.1p for COS (Class of Service) IEEE 802.1Q for VLAN Tagging IEEE 802.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Software Features STP/RSTP/MSTP (IEEE 802.1D/w/s) Redundant Ring (C-Ring) with recovery time <30ms over 250 units TOS/Diffserv supported Quality of Service (802.1p) for real-time traffic VLAN (802.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ Environmental Storage Temperature -40º to +85ºC (-40º to +185ºF) Operating Temperature -40º to +75ºC (-40º to +167ºF ) Operating Humidity 5% to 95% Non-condensing Regulatory approvals EMI FCC Part 15, CISPR (EN55022) class A EMS EN61000-4-2 (ESD) EN61000-4-3 (RS), EN61000-4-4 (EFT), EN61000-4-5 (Surge), EN61000-4-6 (CS), EN61000-4-8, EN61000-4-11 Shock IEC60068-2-27 Free Fall IEC60068-2-32 Vibration IEC60068-2-6 Warranty Lifetime INS_CN
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ INS_CNGE28FX4TX24MSPOE+_REV– Tech Support: 1.888.678.
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INSTALLATION AND OPERATION MANUAL CNGE28FX4TX24MSPOE+ INS_CNGE28FX4TX24MSPOE+_REV– Tech Support: 1.888.678.
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MECHANICAL INSTALLATION INSTRUCTIONS ComNet Customer Service Customer Care is ComNet Technology’s global service center, where our professional staff is ready to answer your questions at any time. Email ComNet Global Service Center: customercare@comnet.net 3 Corporate Drive | Danbury, CT 06810 | USA T: 203.796.5300 | F: 203.796.5303 | Tech Support: 1.888.678.9427 | info@comnet.