Summary of Contents for Vigitron MaxiiNet Vi30126 Series
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1-5-17 MaxiiNet Vi30126 Operational Manual Vi30126 Release F30126V1.00 2017 Vigitron, Inc. All rights reserved. All brand and product names are trademarks or registered trademarks of their respective companies.
1.5 Disclaimer Vigitron, Inc. does not warrant that the hardware will work properly in all environments and applications, and marks no warranty and representation, either implied or expressed, with respect to the quality, performance, merchantability, or fitness for a particular purpose. Vigitron disclaims liability for any inaccuracies or omissions that may have occurred.
Section 2: Compliances and Safety Statements 2.0 FCC Class A This equipment has been tested and found to comply with the limits for a Class A computing device pursuant to Subpart J of part 15 of FCC Rules, which are designed to provide reasonable protection against such interference when operated in a commercial environment.
2.3 CE Declaration of Conformance for EMI and Safety (EEC) This equipment has been tested and found to comply with the protection requirements of European Emission Standard EN55022/EN61000-3 and the Generic European Immunity Standard EN55024. 2.4 UL Mark Ul 60950-1 Information Technology Equipment - Safety - Part 1: General Requirements - Edition 2 - Revision Date 2014/05/13 2.5 EMC...
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The Vi30126 supports SFP conforming to MSA standards, although differences between manufacturers can affect performance. For best results, use Vigitron SFPS. NOTE: The switch is indoor device. If it will be used in an outdoor environment or connects with some outdoor device, then it must use a lightning arrester to protect the switch.
2.6 Related Publications The following publication gives specific information on how to operate and use the management functions of the switch. 2.7 Revision History The User’s Manual This section summarizes the changes in each revision of this guide. Release Date Revision F30126V1.00 Updating several functions may require rebooting the switch.
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PoE: 15.4 Watts, 30 Watts, 36 Watts, 65 Watts There are 4 or 8 ports providing 65W PoE on Hybrid Switches as following: Vi30126 Ports 1-4 (standard), 17-20 (standard) Vi31026 Ports 1-4 (extended), 17-20 (standard) Vi31126 Ports 1-4 (extended), 17-20 (standard) Vi32026 17-20 (standard) Vi32126...
The Vi30126 series, the next generation web managed switches from Vigitron, is a portfolio of affordable managed switches that provides a reliable infrastructure for your business network. These switches deliver intelligent features to improve the availability of your critical business applications, protect your sensitive information, and optimize your network bandwidth to deliver information and applications effectively.
3.1 Cabling Guidelines Ports 1-24 are 10/100Mbps and will automatically sense network speeds if set to the auto mode or can be forced set to a either network speed. Ports 25 and 26 are 10/100/1000Mbps and can also be set to auto sense speeds or forced speeds.
Step 2: If the device is a network card and the switch is in the wiring closet, attach the other end of the cable segment to a modular wall outlet that is connected to the wiring closet (see the section “Network Wiring Connections”).
Section 4: Description of Hardware 4.0 1000Base-T Ports The switch contains 24100BASE-T RJ-45 and 2, 1000Mbps ports. All RJ- 45 ports support automatic MDI/MDI-X operation, auto-negotiation and IEEE 802.3x auto-negotiation of flow control, so the optimum data rate and transmission can be selected automatically. 4.1 SFP Transceivers Slots Vi30126 supports the Small Form Factor Pluggable (SFP) transceiver...
4.2 Ports and System Status LEDs The Vi30126 includes a display panel for system and port indications that simplify installation and network troubleshooting. The LEDs are located on left hand side of the front panel for easy viewing. Details are shown below and described in the following tables.
Section 5: Installing the Switch 5.0 Selecting a Site The switch can be mounted in a standard 19-inch equipment rack or on a flat surface. Be sure to follow the guidelines below when choosing a location. The site should: o Be at the center of all the devices you want to link and near a power outlet.
Figure 7: RJ-45 Connections Figure 8: SFP Transceiver 5.2 Equipment Checklist After unpacking this switch, please make sure you have received all the components. And before beginning the installation process, be sure you have all other necessary installation equipment. 5.3 Package Contents Contents include: ...
5.5 Rack Mounting Before rack mounting the switch, please pay attention to the following factors: Temperature: Since the temperature within a rack assembly may be higher than the ambient room temperature, check that the rack-environment temperature is within the specified operating temperature range (0 to 40°C).
Figure 12: Inserting an SFP Transceiver into a Slot 5.8 Installing an SFP Transceiver Step 1. Consider network and cabling requirements to select an appropriate SFP transceiver type. Step 2. Insert the transceiver with the optical connector facing outward and the slot connector facing down. Note that the SFP transceivers are keyed so they can only be installed in one orientation.
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WARNING: For International use, you may need to change the AC line cord. You must use a line cord set that has been approved for the socket type in your country. Page | 26...
Section 6: Making Network Connections 6.0 Connecting to a Network Devices The switch is designed to be connected to 10, 100 or 1000Mbps network cards in PCs and servers, as well as, to other switches and hubs. It may also be connected to remote devices using optional SFP transceivers. 6.1 Twisted-Pair Devices Each device requires an unshielded twisted-pair (UTP) cable with RJ-45...
Step 2. If the device is a network card and the switch is in the wiring closet, attach the other end of the cable segment to a modular wall outlet that is connected to the wiring closet (see the section “Network Wiring Connections”).
Section 7: Troubleshooting 7.0 Basic Troubleshooting Tips Most problems are caused by the following situations. Check for these items first when starting your troubleshooting: Connecting to devices that have a fixed full- duplex configuration. The RJ-45 ports are configured as “Auto”. That is, when connecting to attach devices, the switch will operate in one of two ways to determine the link speed and the communication mode (half duplex or full duplex):...
Check the Port Configuration. A port on your switch may not be operating as you expect because it has been put into a “blocking” state by Spanning Tree, GVRP (automatic VLANs), or LACP (automatic trunking). (Note that the normal operation of the Spanning Tree, GVRP, and LACP features may put the port in a blocking state.) Or, the port just may have been configured as disabled through software.
Section 8: Operation of Web-Based Management 8.0 Initial Configuration This chapter instructs you on how to configure and manage the Vi30126 through the web user interface. With this facility, you can easily access and monitor through any one port of the switch and all the status of the switch, including MIBs status, each port activity, Spanning tree status, port aggregation status, multicast traffic, VLAN and priority status, even illegal access record and so on.
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NOTE: When you log into the Switch WEB to manage, you must first type the username of the admin. Password is blank. So after you type in the username, please press enter. Management page will enter WEB. When you log into Vi30126 series switch Web UI management, you can use both ipv4 ipv6 login to manage.
Section 9: Administration 9.0 Prior to Logging On Note the default address for the switch is 192.168.1.133. To access the switch for programming your computer must be on the same subnet using any final value greater than 1. 9.1 Logging On ...
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After logging in, the following page will appear. Full Version Lite Version Page | 34...
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Selecting Operating Mode: The Vi30126 provides two separate operating modes. The lite version provides set-ups for addressing, PoE and bandwidth, while the full mode provides for all set-ups. These modes can be used to simplify set-ups and operations. NOTE: In the switch icon, if either the fiber port or the copper port is connected, both ports will show as active.
9.2 System IP Configuration IP Address: Enter a valid IvP4 address. Subnet Mask: Enter a valid range: 255.255.255.0 will allow for all addresses with in the programmed address. Gateway: Enter a gateway address making the value is the same as the IP address.
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MAC Address: This is fixed and reflects the unique product address Number of Ports: If the sequence is three numbers; The first number = number of extended ports The second number = number of standard ports The third number = number of uplink ports Comment: The operator can enter a unique name from the switch.
9.4 Load Default If you make a mistake in programming switch features, you can return to the original default configuration by pressing the load button. All settings will be reversed with the exception of: IP address User Name ...
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After the “Update” button is pressed the existing code will be erased. After this is complete, select the new file and press “Update”. Page | 39...
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Reboot Device: If operation becomes unstable, select “Reboot Device” and press confirm. Using this function will not reset the hardware. Page | 40...
Power Mode: Select Mode by: Host: Power provided will be determined by connected device. Class: Power is determined by power class of connected device limited to that power class. Host defined Power Limit: Power is determined by port setting, which can be any variable within the range of the selected class power.
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1. In the Port Setting page, click on the “Port Priority” box to display a dropdown list of the current settings. The default is port 1 as the highest priority through port 24 as the lowest. 2. To change the priority of a port, left click on one of the ports in the “Port”...
What does the priority list do? When the switch detects the power usage is above 550 Watt (400 Watt for Vi35126), it will begin disabling ports, until the usage goes down to safe levels again. The switch will start disabling ports with low priority, and move towards the higher priority ports.
10.3 PoE Power Delay This setting can be used to delay the application of PoE in cases where a connected device will draw large amounts of power. 1. Enable the Delay mode. If the Delay mode is already enabled, you can disable it by selecting disable.
10.4 PoE Auto Check PoE Auto-Check: This setting will check the status of the IP connection, reconnect and reapply PoE. 1. Enter the Interval Time- from 1-240min (1mm- 4 hours). This will define the duration the connected device is ping. 2.
Section 11: Port Management 11.0 Port Configuration Select the Port Number: Select the port number 1-26 NOTE: For ports 25 and 26, port speed is selectable for 100Mbps or 1000Mbps for UTP (copper) connections only. When Fiber STPs are used the port speed will be fixed at 1000Mbps. It cannot be changed and only 1000Mbps SFPs can be used for connected devices.
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Tx/Rx: Enable for normal operation – this is default setting Disable- this will shut down port Page | 51...
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1. In the Port Configuration section, click the down arrow under SecurPort. Select either Enable or Disable to turn the feature on or off. 2. Select the desired ports by checking the boxes next to the ports to be set. 3.
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To re-enable the transmit/receive ability for a secured port, the user will need to log into the switch GUI and re-enable it from the “Port Configuration” page. Auto-Negotiation: Enable: Speed will be Auto Negotiate based on the input Disable: Speed will set by the manual setting If Auto Negotiation is selected, Speed Selection will not NOTE:...
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Speed: Select 10Mbps or 100Mbps for ports 1-24 Select 10Mbps/100Mbps or 1000Mbps (1Gbps) for ports 25/26 If attempts are made to program ports 1-24 for 1G, the following popup will appear: Page | 54...
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Duplex : Select Full or Half Duplex- for most application select Full Page | 55...
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Pause Enable: Responses to pause commands to prevent traffic congestion. Disable: disregards pause commands The recommended setting is Disable as Enable will NOTE: slow up traffic and may result in loss or delay of packet transmission. Page | 56...
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Backpressure Enable: Prevents backpressure in half duplex mode Disable: Disables function In most applications the switch will operate in the full NOTE: duplex mode so this function should be set to Disable. Page | 57...
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Address Learning Enable: Port will learned connected devices MAC – suggested for maintaining security between connected device and switch port Disable: Connected devices MAC address is not learned Update: Select update to apply your programmed changes Status Screen: After changes are made and Update applied check the status screen to make certain these changes have taken effect.
11.1 Port Mirroring The select of ports to be mirrored is done by port priority by number. For Example; If ports 1 and 2 are selected as source ports and this is followed by ports 23 and 24, Port 1 will be mirrored at port 23 and port 2 will mirrored at port 24.
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This is an override setting for the port speed NOTE: (10/100Mbps for ports 1-24 and 10/100/1000Mbps for ports 25/26). If port speed set in the Bandwidth control is lower than the previous selected speed, the value will revert to that speed. The Limitation Of The Bandwidth Control The actual bandwidth should be less than link speed of the port.
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In the “Low” mode, the Tx/Rx bandwidth resolution is 32Kbps for port 1~ port 26. In the “High” mode, the Tx/Rx bandwidth resolution is 256Kbps for port 1 ~ port 24, and 2048Kbps for port 25, port 26. Low Bandwidth for TX Example 1: The TX number of the port1~4 is set to 10, 20, 30, 40 respectively, and Speed base is set to “Low”.
11.3 Broadcast Storm Control The broadcast storm control is used to block the excessive broadcast packets received during the specified time unit. The valid number ranges from 1 to 63. The broadcast packet is only checked at the selected port and the number of broadcast packets is counted in every time unit.
Section 12: VLAN Settings 12.0 VLAN Mode The Vi30126 switch supports two VLAN modes, tag based and port based. Only one VLAN mode can be enabled at one time. When the tag based VLAN is selected, the administrator can define the handling method of a VLAN tag to the specified port, including “Add Tag”, “don’t care”...
Add Tag: 802.1Q tag will be inserted into the outgoing packet of the selected port if the packet received by the port does not already contain one. In that case the 802.1Q tag received Caution: Do add a tag to the port used to configure the switch and in some cases the NIC will not recognize 802.1Q Don’t Care: The outgoing packet of the selected port will the original packet format of the source port.
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Name: Enter a name for your VLAN – maximum of 8 characters. Destination Ports: Select all the port what will be part of the VLAN. Update: Select Update to confirm your port selections. Load Default: If you need to return to the Default setting, select Default. In the above example: Port 1 has been selected as the Read Port Port 1 received packets can be forward to Ports, 2,3 and 4...
12.2 VLAN Member Settings (Tag Based) NOTE: This web page allows the administrator configure to Tag-base VLAN member of VID table of 32-entry and Port VID(PVID) source index of each Port. When a tagged packet is received, the Switch compares the tag in the packet with the one defined in the VID table.
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The function for each button shown on this page is expressed below. Add a VLAN: (Tag Based): Enter a VID (number 1 to 4094) and select a VLAN source port, followed by entering a group name. Select the ADD button to add the VLAN to the list. Delete a VLAN: Select a VLAN from the Select button and press Delete to remove it.
The CPU control entry cannot be removed. NOTE: 12.3 Multi to 1 Setting Multi-to-1 VLAN is used in CPE side of Ethernet-to-the-Home and is exclusive to VLAN setting on ”VLAN member setting“. In the other words, once multi-to-1 is set, the previous VLAN setting will be overridden. The “disable port”...
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all ports which are not excluded will be part of the NOTE: VLAN. Page | 70...
Section 13: Per Port Counter There are three modes. Selecting the mode will display the Transmit and Receive Packets. 13.0 Transmit Packet and Receive Packets Page | 72...
13.3 Counter Modes Defined The 3 different operational modes are: Field Description This category shows both the received Transmit Packet & Receive packet count (excluding the incorrect Packet packet) and the transmitted packet count. This category shows the number of Drop Packet &...
Section 14: QoS Settings 14.0 Priority Mode This setting allows the administrator to set the scheduling mode for the TX packets at each port. 14.1 Setting the Priority Mode This setting sets the scheduling mode for Transmission packets for each port.
Example: If High, Low queue are set to 5, 3, then the traffic at the specific port will go out in the following sequence. 5 packets stored in High queue, 3 packets stored in Low queue, 5 packets stored in High queue, 3 packets stored in Low queue ……...
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TCP/UDP port number the first, IP ToS/DS the second, 802.1p priority tag the third and physical port the last. This means TCP/UDP port number will override other CoS setting. The rule is: TCP/UDP > TOS/DS > 802.1p > Physical For 802.1p priority tag, the following table is used to map the 802.1p field to the priory queue.
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Class of Service Configuration (CoS) Define CoS: TCP or UDP- port number IP TOS/DS 802.1p Priority Tag 802.1p Physical Tag Select the require tag(s) and update. The administrator can select the protocol that will be forwarded as the specified mode.
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TCP/UDP uses port number 0-65536, however only the NOTE: port numbers of 0 to 1024 are use for what are called privilieged services which the most commonly used. More than one can be selected. In that case the switch will arrange the packet to the assigned queue in the following priority: ...
Section 15: Security 15.0 MAC Address Binding Page | 80...
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MAC Address Binding: This feature establishes a specific relationship between the switch’s physical port and connected device’s MAC address. Only the packets from the assigned MAC address can be transmitted to the connected port. Up to three MAC addresses can be assigned to each port.
Caution: Once you bind a device’s MAC address to a port, only that device will be allowed to connect. If an unbound device is connected to a bound port, the link light will be active but no information will be transmitted.
15.3 TCP/UDP Filter By selecting the TCP/UDP port, the network administrator can optionally block some specific applications. There are two kinds of protocol filter functions. The ”positive” function makes the switch forward the selected protocol and drop other protocols. The ”negative” function makes the switch drop the selected protocol and forward other protocols.
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TCP/UDP filter: This feature is used to block specific applications when the switch is connected to a WAN. It is also recommended a similar setting be made at the server side. Function Enable: Enable/Disable function Port Filtering Rule: Negative: Select packet(s) will be dropped- others are forwarded ...
15.4 Secure WAN Port: Select the port to be secured Web Management Filter This function blocks access to the switch's GUI preventing the ability to change settings. You will not be able to block the current port which is used to set up and monitor the switch. Select Enable or Disable the function.
Section 16: Spanning Tree 16.0 STP Bridge Settings The parameters concerning the configuration of RSTP/STP bridge are described below. Field Description STP Mode Disable: Disable RSTP/STP. STP: Enable STP function. RSTP: Enable RSTP function, including STP. Bridge Priority This field in conjunction with the MAC address forms the Bridge ID.
Field Description Port No. To configure the parameters of RSTP/STP port, the administrator should select a physical port number, assign a priory number, enter the RPC and then press “Submit” button. Priority (0~240) Priority field defines the priority of the RSTP/STP port.
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Field Description Loopback Detect Enable/Disable the loopback detect function. Function Auto Wake Up Enable/Disable auto wake up for loopback detection of each ports. Wake-Up Time Set auto wake up time value. Interval Page | 90...
16.3 Trucking This page is used to set trunk group for load balance and cable link auto- backup. There are 2 methods to set a trunk; i.e. Static and LACP. The meaning of each field shown in the following table is explained as following.
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Link Aggregation Description Algorithm Among the trunk member ports, the packet will be distributed based on the source MAC address. Among the trunk member ports, the packet will be distributed based on the XOR DA XOR SA calculation result of the source MAC address and the destination MAC address If Binding has been activated on the port, you cannot use Link Aggregation.
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Field Description There are three configurable trunk groups. “--“ means the trunk has not been built on the Member corresponding port. “A” means trunk has been built on the corresponding port. Administrator can enable/disable the function of this State trunk. Static: Static setting by manual.
Section 17: DHCP Relay Agent 17.1 Relay Agent Configurations This web page allows the administrator to enable/disable DHCP Relay Agent function. In addition, option 82 message is selectable by setting. Field Description DHCP Relay State Allow the administrator to enable/disable Relay Agent function.
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Select Update On Relay Option 82: This has two components the NOTE: Circuit ID and the Remote ID. In the case of the Circuit ID a network switch the identifier will be the switch port. In the case of the Remote ID the information relates to the host and is usually the MAC address of the destination.
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Server IP List: The IP address of DHCP server, which can be relayed by this Relay Agent should be specified on this web page. VLAN to Server IP Map: This functions defines the relationship between the VLAN group and the server IP address Enter VLAN ID: 1-4094 Select the Map Server IP Address: Use the drop down Select Add: Adds the IP address...
Section 18: Backup and Recovery 18.0 Configuration Backup/Recovery 18.1 Back Up This function will download the contents of the EEPROM to the client computer file 18.2 Recovery To upload new firmware, first select the file on your client computer. Enter the switch password and select the Update.
Section 19: Miscellaneous Settings 19.0 Miscellaneous Settings Defined Miscellaneous setting is used to configure Output Queue Aging Time, VLAN Striding, IGMP Snooping and VLAN Uplink. 19.1 Output Queue Aging Time This function is used to avoid the poor utilization of the switch. When a packet is stored in a switch for a long time, the time slot defined by the protocol will expire and this packet becomes useless.
19.2 VLAN Striding By selecting this function, the switch will forward uni-cast packets to the destination port, no matter whether destination port is in the same VLAN. Page | 100...
19.3 IGMP Snoop V1 & V2 When this function is enabled, the switch will execute IGMP snooping version 1 and version 2 without the intervention of CPU. The IGMP report packets are automatically handled by the switch. When the user enable “Leave packet will be forwarded to IGMP router ports”...
19.4 VLAN Uplink In the VLAN, the user can define the “Uplink port”. This is normally the port that attached to the uplink router. This feature is similar to the “Router port”. After that is set. Any frame transferred to the other VLAN member is forwarded only out the uplink port.
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Field Description This field allows the administrator to enter the Community Name community name. This filed defines the access attribute. “Read only” means the administrator can view this community Access Right only. “Read/Write” means the administrator can view and modify this community. Field Description The administrator can enter a device name...
19.6 SNMP Trap States This screenshot shows how the switch was configured and on the right side of the screen, how the trap messages are display. The switch IP address is 192.168.1.13380. The switch uses SNMPv1. The time and date displayed are from the host computer. SNMP will deliver the following messages: “PoE_On Port xx”...
Section 20: Log Out 20.0 Log Out Procedure Select: Accept to logout Back: Returns to the previous page Hardware Based Loading Default settings: The purpose of this function is to provide a method for the network administrator to restore all configurations to the default value.
Section 21: Glossary ACE is an acronym for Access Control Entry. It describes the access permission associated with a particular ACE ID. There are three ACE frame types (Ethernet Type, ARP, and IPv4) and two ACE actions (permit and deny). The ACE also contains many detailed and different parameter options that are available for individual application.
ACL|Rate Limiters: Under this page you can configure the rate limiters. There can be 15 different rate limiters, each ranging from 1-1024K packets per seconds. Under "Ports" and "Access Control List" web-pages you can assign a Rate Limiter ID to the ACE(s) or ingress port(s). AES is an acronym for Advanced Encryption Standard.
CCM is an acronym for Continuity Check Message. It is an OAM frame transmitted from a MEP to its peer MEP and used to implement CC functionality. CDP is an acronym for Cisco Discovery Protocol. DEI is an acronym for Drop Eligible Indicator. It is a 1-bit field in the VLAN tag. DES is an acronym for Data Encryption Standard.
The DHCP option 82 enables a DHCP relay agent to insert specific information into a DHCP request packets when forwarding client DHCP packets to a DHCP server and remove the specific information from a DHCP reply packets when forwarding server DHCP packets to a DHCP client. The DHCP server can use this information to implement IP address or other assignment policies.
DSCP DSCP is an acronym for Differentiated Services Code Point. It is a field in the header of IP packets for packet classification purposes. EEE is an abbreviation for Energy Efficient Ethernet defined in IEEE 802.3az. EPS is an abbreviation for Ethernet Protection Switching defined in ITU/T G.8031.
Any Web server machine contains, in addition to the Web page files it can serve, an HTTP daemon, a program that is designed to wait for HTTP requests and handle them when they arrive. The Web browser is an HTTP client, sending requests to server machines.
IGMP Querier A router sends IGMP Query messages onto a particular link. This router is called the Querier. IP is an acronym for Internet Protocol. It is a protocol used for communicating data across an internet network. IP is a "best effort" system, which means that no packet of information sent over is assured to reach its destination in the same condition it was sent.
LLDP The Link Layer Discovery Protocol (LLDP) specified in this standard allows stations attached to an IEEE 802 LAN to advertise, to other stations attached to the same IEEE 802 LAN, the major capabilities provided by the system incorporating that station, the management address or addresses of the entity or entities that provide management of those capabilities, and the identification of the stations point of attachment to the IEEE 802 LAN required by those management entity or entities.
Multicast VLAN Registration (MVR) is a protocol for Layer 2 (IP)-networks that enables multicast-traffic from a source VLAN to be shared with subscriber- VLANs. The main reason for using MVR is to save bandwidth by preventing duplicate multicast streams being sent in the core network, instead the stream(s) are received on the MVR-VLAN and forwarded to the VLANs where hosts have requested it/them (Wikipedia).
OUI is the organizationally unique identifier. An OUI address is a globally unique identifier assigned to a vendor by IEEE. You can determine which vendor a device belongs to according to the OUI address which forms the first 24 bits of a MAC address.
Policer A policer can limit the bandwidth of received frames. It is located in front of the ingress queue. Private VLAN In a private VLAN, communication between ports in that private VLAN is not permitted. A VLAN can be configured as a private VLAN. PTP is an acronym for Precision Time Protocol, a network protocol for synchronizing the clocks of computer systems.
RARP RARP is an acronym for Reverse Address Resolution Protocol. It is a protocol that is used to obtain an IP address for a given hardware address, such as an Ethernet address. RARP is the complement of ARP. RADIUS RADIUS is an acronym for Remote Authentication Dial in User Service. It is a networking protocol that provides centralized access, authorization and accounting management for people or computers to connect and use a network service.
SNMP SNMP is an acronym for Simple Network Management Protocol. It is part of the Transmission Control Protocol/Internet Protocol (TCP/IP) protocol for network management. SNMP allow diverse network objects to participate in a network management architecture. It enables network management systems to learn network problems by receiving traps or change notices from network devices implementing SNMP.
TACACS+ TACACS+ is an acronym for Terminal Access Controller Access Control System Plus. It is a networking protocol which provides access control for routers, network access servers and other networked computing devices via one or more centralized servers. TACACS+ provides separate authentication, authorization and accounting services.
UDP is an alternative to the Transmission Control Protocol (TCP) that uses the Internet Protocol (IP). Unlike TCP, UDP does not provide the service of dividing a message into packet datagrams, and UDP doesn't provide reassembling and sequencing of the packets. This means that the application program that uses UDP must be able to make sure that the entire message has arrived and is in the right order.
Voice VLAN Voice VLAN is VLAN configured specially for voice traffic. By adding the ports with voice devices attached to voice VLAN, we can perform QoS-related configuration for voice data, ensuring the transmission priority of voice traffic and voice quality. Page | 122...
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