The XL-VC802 has
8 x RJ-11 POTS Ports with splitter on board,
8 x RJ-11 VDSL Ports,
2 x 10/100Mbps auto-sensing RJ-45, 1x uplink RJ-45
The XL-VC802 is a rack-unit (1RU) high, 10-inches deep. It is a standard 19” Rack mounted size.
The XL-VC802 delivers dedicated bandwidth per port at rates up to 15 Mbps. VDSL transmissions
coexist with POTS and ISDN, and can be compatible with ADSL/HomePNA traffic in the same building.
This VDSL concentrator can be configured on a per-switch basis to support the following modes:
4/1 asymmetrical, 5/10/15 Mbps symmetrical rate (up to 1900/ 1500 /1200 /1000 meters), our factory
default threshold is 10Mbps & Speed rate control from 100k up to 15Mbps.
The 10/100 Ethernet ports can be used to connect servers, Ethernet switches. These connectivity options
provide multiple price/performance options to meet building and budget requirements.
The XL-VC802 provides the important features necessary for robust networks:
Features:
•Quality of Service: Supports 802.1p QoS. Provides high-and low-priority queuing on a per-port
basis
•Supports IGMP: Snooping by 512 IP multicast table for VOD (Video on demand) and Video
conference and Internet games application
•Scalability: Supports bandwidth control from 100k to 4/1, 5/10/15 Mbps symmetric performance
over single-pair wiring. Fast Ethernet Channel port aggregation.
•Security: 802.1Q Tag base and port-based virtual local-area network (VLAN) support. Private
VLAN access, assuring port security without requiring a VLAN per port. 256 VLANs support.
• Supports MAC filtering to Lock MAC address
• In band Management: XL-VC802 provides a console port for setup IP or other function
• Out Of Band Management: XL-VC802 support remote control by Telnet and Web-based
Management easy-to-use configuration and ongoing monitoring. This software is embedded in the
XL-VC802 and delivers remote, intuitive management of 8 ports VDSL concentrator and
connected VDSL CPE devices through a single IP address. The 8 ports VDSL concentrator is
easy-to-configured and deployed, and offering a compelling option in terms of cost, performance,
scalability and services compared to traditional ATM-based xDSL solutions
•Speed Rate Control: XL-VC802 supports speed rate control function, from 100k to 4/1,
5/10/15Mbps
• Spanning tree: Supports IEEE802.1d for MAC bridge and link redundant.
• DHCP Client: Dynamic Host Configuration Protocol (DHCP) for auto configuring management
IP.
• TFTP Protocol: Trivial File Transfer Protocol (TFTP) for new version firmware remote upgraded
• SNR indication: Signal to Noise Ratio (SNR) for check phone wiring quality and cross talk
for offering wiring information to engineer.
•FAN & Temperature Monitor: This is a monitoring function for the cooler FAN speed and
inner temperature status, if the FAN stops or the temperature is over 70 ℃, the alarm trap will be
sent via SNMP
•Alarm: In order to make sure the system is working normally, the XL-VC802 provides Fan and
Temperature monitor and management, you can see through WEB or Telnet which shows the
internal temperature and fan speed, if the temperature exceeds 70℃ or the fan stops working, the
VDSL concentrator will send a SNMP trap to inform the Trap management server.
•Hacker prevention: To avoid hacker to enter management system through client side (CPE), the
XL-VC802 will filter system IP from client side
•Supports multiple web browsers: IE, Mozilla & Netscape under Windows O/S, Mozilla &
Carefully unpack the package and check its contents against the checklist.
Package Contents:
• XL-VC802
• Users manual CD
• AC Power Cord
• 2x Rack Mounting Brackets
• 4x Screws
• 4x Plastic feet
Please inform your dealer immediately for any missing, or damaged parts. If possible, retain the carton,
including the original packing materials. Use them to repack the unit in case there is a need to return for
repair.
This section describes the important parts of the XL-VC802, the front and rear panel drawings, LEDs,
and connectors.
2.1.1 Front Panel
The following figure shows the front panel of the XL-VC802.
Front panel
The XL-VC802 has embedded Splitter between every VDSL side and POTS side. It permits you can
deliver broadband service on the same lines as Plain Old Telephone Service (POTS), PBX, ISDN traffic
and VDSL Signal. Several LED indicators for monitoring the device itself, and the network status. At a
quick glance of the front panel, the user would be knew if the product is receiving power; if it is
monitoring another VDSL concentrator or other devices; or if a problem exists on the network.
Each port is labeled with a port number. MDI port labeled with “TX” is shared from port “T”. Do not use
the same section bearing the markings of T and TX port otherwise, failure will occur.
Ethernet port
Ethernet port
• “PWR.”: Power LED light.
• “POST”: Power On Self Test
• 8x POTS Ports RJ11
• 8x VDSL Ports RJ11
• RS-232 Console Port
• 2x 10/100Mbps RJ-45 auto-sensing Ethernet expansion port, 10/100Base-TX, one port MDI and
The following describes the function of each LED indicator.
LEDs Status Descriptions
PWR
(Power LED)
POST
(Power On Self
Test)
ACT (Receiving
LEDs)
Speed 100
(Speed LEDs)
FD (Full-Duplex) Steady
Steady
LINK LEDs Steady
Steady
Green
Steady
Green
Steady
Green
Flashing
Steady
Yellow
Yellow
Yellow
Green
This LED light is located at the left side on the front panel. It will light
up (ON) to show that the product is receiving power. Conversely, no
light (OFF) means the product is not receiving power.
Proceed function test to myself when power on.
Act Led if flashing to show data on Receiving status
Indicates that communications have been set 10 or 100 Mbps. Each
port on the VDSL concentrator is assigned an LED light for 10 or
100Base-TX connecting, else on 10M speed.
Indicates that communications have been set to full-duplex operation
for the indicated port
The indicator lights up means working in Full Duplex And light down
means working in Half Duplex
RJ21 LED is lit up to show “Link”. The indicator both CO and CE
side connection OK, and light down which Meaning is no connection.
2.1.3 Rear Panel
The following figure shows the rear panel
AC Power Socket
The power cord should be plugged into this socket. The AC Socket accepts AC power from 100 to 240
voltage.
3 Hardware Installation
This chapter describes how to install the XL-VC802 and to establish network connection. You may install
the VDSL concentrator on any level surface (table, shelf, 19-inch rack or wall mounting). However,
please take note of the following minimum site requirements before you begin.
Pre-Installation Requirements
Before you start actual hardware installation, make sure you can provide the right operating environment,
including power requirements, sufficient physical space, and proximity to other network devices that are
to be connected.
Verify the following installation requirement:
• Power requirements: AC 100V to 240 V at 50 to 60 Hz. The Switch power supply automatically
adjusts to the input voltage level.
• The VDSL concentrator should be located in a cool dry place, with at least 10cm/4in of space at
the front and back for ventilation.
• Place the VDSL concentrator out of direct sunlight, and away from heat sources or areas with a
• Check if network cables and connectors needed for installation are available.
General Rules
Before making any connections to the VDSL concentrator, note the following rules:
• Ethernet Port (RJ-45): All network connections to the VDSL concentrator’s Ethernet port must be
made using Category 5 UTP for 100Mbps and Category 3,4 UTP for 10Mbps. No more than 100
meters (about 328 feet) of cabling may be use between VDSL concentrator’s or with HUB or an
end node.
• VDSL Port (RJ-11): All home network connections to the VDSL, 1 X RJ-21 Cable (Male to
Male)Using Pin 1~24, 26~49.
RJ-21 Pin 25 & 50 are not used!
Connecting the XL-VC802
The 8-port VDSL concentrator has 2 x Fast Ethernet supporting full or half-duplex operation. The
transmission mode is using auto-negotiation. Therefore, the devices attached to these ports must support
auto-negotiation unless they will always operate at half duplex. If transmissions must run at full duplex,
but the attached device does not support auto-negotiation, then you should upgrade this device to a newer
version that supports auto-negotiation. Use “T” port connect to devices such as server, bridge or router.
You can also cascade to another compatible MUX or hub by connecting the UP-Link port to an “MDI”
port (e.g., port TX on this switch) on the other device.
Connecting “MDI” Station Port (TX)
You can connect the “TX” port on the IP DSLAM to any device that uses a standard network interface
such as a Cable modem, ADSL modem, workstation or server. “TX” port is shared with “T” port.
Prepare the network devices you wish to connect. Make sure you have installed suitable VDSL Modem
before making a connection to any of the IP DSLAM (1-8) station ports. You also need to prepare 18 ~
26 gauge one twist pair phone Line wiring with RJ-11 plugs at both ends.
Connect one end of the cable to the RJ-11 port of the Home Access network adapter, and the other end to
any available (1~8) station port on the VDSL. Every port supports 10 Mbps connections. When inserting
an RJ-11 plug, be sure the tab on the plug clicks into position to ensure that it is properly seated.
● Do not plug a RJ-11 phone jack connector into the Ethernet port (RJ-45 port). This may damage the
VDSL. Instead, use only twisted-pair cables with RJ-45 connectors that conform the FCC standards.
Note:
• Be sure each twisted-pair cable (RJ-45) is not over by 100 meters (328 feet).
• RJ-11 port use 18 ~ 26 gauge phone wiring, 28 gauge or above is not recommended.
• We advise using Category 5 cable for Cable Modem or router connections or to attach to any high
bandwidth device to avoid any confusion or inconvenience.
Connecting “MDI-X” Port (T)
Prepare straight through shielded or unshielded twisted-pair cables with RJ-45 plugs on both ends. Use
100Ω Category 5 cable for connections. Connect one end of the cable to “TX” port of the IP DSLAM,
and the other end to a standard RJ-45 port of Ethernet switch, hub, router.
When inserting an RJ-45 plug, be sure the tab on the plug clicks into position to ensure that it is properly
seated.
Note: Make sure the length of the twisted-pair cable is not over by 100 meters (328 feet).
Connecting VDSL Port
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Prepare the network devices you wish to connect. Make sure you have installed suitable VDSL Modem
before making a connection to any of the VDSL concentrator (1-24) station ports. You also need to
prepare one 18 ~ 26 gauge twisted pair phone Line wiring with RJ21 plugs at both ends.
Connect one end of the cable to the RJ21 port of the Home Access network adapter, and the other end to
any available (1~24) station port on the VDSL.
Every port supports 4/1, 5/10/15 Mbps connections. When inserting an RJ21 plug, be sure the tab on the
plug clicks into position to ensure that it is properly seated.
Notes:
• Be sure each twisted-pair cable (RJ-45) is not over 100 meters (328 feet)
• VDSL port use 18 ~ 26 AWG, 28 AWG or above is not recommended.
Console port (RS-232) Configuration (Change IP Address By Terminal):
You can configure the product with the local serial console port, If one of the VDSL port is not in use,
you can disable it, that procedure is to connect a notebook computer to the RS-232 port, then boot
windows @95/98/ME/2000 system, and run “Hyper-terminal” program into terminal window, and setup
step are as follow.
Set “Bits per second” at 9600 to the content window.
Set “Flow control” at None
Connects PC with the VDSL concentrator, you will find login manual window on the screen then enter
Login name :”admin” ; password:”123” you will find user manual window on the screen of the
You must setup the “IP Address” with the local serial console port (RS-232 Port), and then you
can use this IP address to control this VDSL concentrator by Telnet and WEB. Or you can change
your computer’s IP domain same with VDSL SWITH. Then use the default IP address to control
this VDSL concentrator.
4.2.1.1 Remote control by “Telnet”
To enter Telnet, type the IP address of the VDSL switch to connect management system. And
type User name and
password.
Default User Name: admin
Default Password: 123
Note:
For security reason, we limit the user login number on Telnet and Console port. So you can’t
login Telnet and Console port in the same time. But you can login Telnet and Console port in the
different time. When you want to end console port control you must log-out to leave. Otherwise
you can’t login by Telnet.
WEB Login doesn’t have user login limitation.
4.2.1.2 Network control by “WEB”
1.The XL-VC802 provides a WEB browser to manage and monitor the VDSL concentrator, that
default values are as follows: If you need change IP address in first time,you can use console
mode to modify it.
Default IP Address: 192.168.16.250
Subnet Mask: 255.255.255.0
Default Gateway:192.168.16.1
User Name: admin Password: 123
This page can see every port status that depended on user setting and the negotiation result.
State:Display port statuses disable or enable. “unlink” will be treated as “off”.
Link Status:Down is “No Link”,UP is “Link”.
Speed Status: Port 1-8 are4/1, 5/10/15Mbps VDSL,Port T, E are 10/100Mbps.
Duplex Status: Display full-duplex or half-duplex mode.
Flow Control: Full:Display the flow control status is enable or disable in full mode.
Half:Display the backpressure is enable or disable in half mode.
Config:Display the state of user setting.
Actual:Display the negotiation result.
4.2.3 Port Statistics
The following information provides a view of the current status of the unit. Press “Reset” button
to clean all count.
User can configure the IP Setting and fill the new value,then clicks apply button. User must
reset and use new IP address to browser this web management.
5.2 Switch Setting
5.2.1 Basic Description
Display the name of device type.
MAC Address:The unique hardware address assigned by manufacturer(default)
Firmware Version:Display the switch’s Hardware version.
Hardware version:Display the switch’s Hardware version.
Default config value version:display write to default EEPROM value table version.
Mac Address Age-out Time: Type the number of seconds that an inactive MAC address
remains in the switch’s address table. The valid range is between 300∼ 765 seconds. Default is
300 seconds.
Max bridge transit delay bound control:Limit the packets queuing time in VDSL concentrator.
If enable,the packets queued exceed will be dropped. This valid value 1 sec、2 sec、4 sec and off.
Default is 1 seconds.
Broadcast Storm Filter:To configure broadcast storm control, enable it and set the upper
threshold for individual ports. The threshold is the percentage of the port's total bandwidth used
by broadcast traffic. When broadcast traffic for a port rises above the threshold you set, broadcast
storm control becomes active. The valid threshold values are 5%, 10%, 15%, 20%, 25% and off.
Priority Queue Service settings:
First Come First Service: The sequence of packets sent is depend on arrive order.
All High before Low: The high priority packets sent before low priority packets.
WRR: Weighted Round Robin. Select the preference given to packets in the switch's
high-priority queue.
These options represent the number of high priority packets sent before one low priority packet is
sent.
For example, 5 High: 2 Low means that the switch sends 5 high priority packets before sending 2
low priority packet.
Enable Delay Bound: Limit the low priority packets queuing time in switch.
Default Max Delay Time is 255ms. If the low priority packet stays in switch exceed Max Delay
Time, it will be sent. The valid range is 1~255 ms.
NOTE: Make sure of “Max bridge transit delay bound control” is enabled before enable Delay
Bound, Because Enable Delay Bound must be work under “Max bridge transit delay bound
control is enabled” situation.
QoS Policy: High Priority Levels: 0~7 priority level can map to high or low queue.
Protocol Enable Setting:
Enable Spanning Tree Protocol: enable STP protocol
Enable Internet Group Multicast Protocol: enable IGMP protocol
Auto Speed SNR margin value setup:
VDSL Speed auto adaptive function is based on SNR value, you can specify target SNR margins.
Maximum: When SNR value bigger than Maximum value, VDSL speed will increase.
Minimum: When SNR value smaller than Minimum value, VDSL speed will decrease. Priority
The Interleaving function reorganizes the bytes of the VDSL frames, dispersing them throughout
the frames over the line. As a result, impulse noise that would normally appear sequentially is
spread over several frames. This enables correction of a greater number of errors than would be
possible if the bytes had been concentrated in a single frame.
The protected portion of the VDSL frame can be passed through a convolutional
interleaver/deinterleaver. This protects the data, together with the RS coding, from impulse noise
with duration of up to 300 µs at full rate. The total latency of the device consists of the latency
caused by the RS encoding and the delay caused by interleaving. The parameter M is used to
define the length of protection supported by the interleaving function. The value of if0le defines
no use of the interleaver and the maximum value of 16 defines the maximum protection. The
values 0,1,2,8 and 16 are valid. The registers M_TX and M_RX are used for the depth of the
interleaver.
Console is a standard UART interface to communicate with Serial Port. User can use
windows HyperTerminal program to link the switch.
Bits per seconds: 9600
Data bits: 8 Parity: none
Stop Bits: 1
Flow control: none
5.4 Port Controls
This section shows you how to change every port status and speed mode.
State: User can disable or enable this port control.
Auto Negotiation: User can set auto negotiation mode is Auto, Nway (specify the speed/duplex
on this port and enable auto-negotiation), Force of per port.
Speed: User can set 4/1, 5Mbps/10Mbps/15Mbps from port 1~8, 100Mbps or 10Mbps speed on
Port T~Port E.
Distance between VDSL & VDSL modem when standard 24 Gauge 0.5mm cable is used:
4/1 Mbps -> 1.9km.
5 Mbps -> 1.5km
10 Mbps -> 1.2km
15 Mbps -> 1.0km
Duplex: User can set full-duplex or half-duplex mode of per port.
Flows control:
Full: User can set flow control function is enable or disable in full mode.
Half: User can set backpressure is enable or disable in half mode.
a. Confirm the VDSL port is linking which you want to change the speed mode.
b. Make sure VDSL port has been connecting to VDSL Modem and Link up OK.
c. Select the port (there are 26 ports available)
d. Select the speed mode
e. Click “Apply” to confirm the settings
f. The VDSL port will link down
g. Await 20 seconds the VDSL port will link up again with the new speed mode.
When the VDSL is linked up with the VDSL modem, both speed modes will be changed
correspondingly. If the VDSL is not linked up with the VDSL modem, only the speed mode of
the port selected from
VDSL will be changed.
Note: We do not suggest to change speed, unless necessary. Both VDSL & VDSL modem must
be in the same speed mode in order to be linked successfully.
5.5 Trunking
The Link Aggregation Control Protocol (LACP) provides a standardized means for exchanging
information between Partner Systems on a link to allow their Link Aggregation Control instances
to reach agreement on the identity of the Link Aggregation Group to which the link belongs,
move the link to that Link Aggregation Group, and enable its transmission and reception
functions in an orderly manner. In conclusion, Link aggregation lets you group up to eight
consecutive ports into a single dedicated connection. This feature can expand bandwidth to a
device on the network. LACP operation requires full-duplex mode, more detail information refers
to IEEE802.3ad.
5.5.1 Aggregator setting
System Priority: A value used to identify the active LACP. The switch with the lowest value has
the highest priority and is selected as the active LACP.
Group ID: There are seven trunk groups to provide configure. Choose the "group id" and click
LACP: If enable, the group is LACP static trunking group. If disable, the group is local static
trunking group All ports support LACP dynamic trunking group. If connecting to the device that
also supports LACP, the LACP dynamic trunking group will be created automatically.
Work ports: Allow max four ports can be aggregated at the same time. If LACP static trunking
group, the exceed ports is standby and able to aggregate if work ports fail. If local static trunking
group, the number must be assame as the group member ports.
Select the ports to join the trunking group. Allow max four ports can be aggregated at the same
time.
If LACP enable, you can configure LACP Active/Passive status in each ports on State Activity
When you are setting LACP aggregator, you can see relation information in here.
This page is no group active. LACP don’t working.
This page is Static Trunking group.
5.5.3 State Activity
Active (select): The port automatically sends LACP protocol packets.
Passive (no select): The port does not automatically sends LACP protocol packets, and responds
only if it receives LACP protocol packets from the opposite device.
A link having either two active LACP ports or one active port can perform dynamic LACP
trunking. A link has two passive LACP ports will not perform dynamic LACP trunking because
both ports are waiting for and LACP protocol packet from the opposite device.
If you are active LACP’s actor, when you are select trunking port, the active status will be
created automatically.
The XL-VC802 supports IP multicast, you can enable IGMP protocol on web management’s
switch setting advanced page, then display the IGMP snooping information in this page, you can
view difference multicast group, VID and member port in here, IP multicast addresses range from
224.0.0.0 through 239.255.255.255.
The Internet Group Management Protocol (IGMP) is an internal protocol of the Internet Protocol
(IP) suite. IP manages multicast traffic by using switches, routers, and hosts that support IGMP.
Enabling IGMP allows the ports to detect IGMP queries and report packets and manage IP
multicast traffic through the switch.
IGMP have three fundamental types of message as follows:
Message Description
Query
Report
Leave Group
A message sent from the carrier (IGMP router or switch) asking for a response
from each host belonging to the multicast group.
A message sent by a host to the carrier to indicate that the host wants to be or
is a member of a given group indicated in the report message.
A message sent by a host to the carrier to indicate that the host has quit to be a
m ember of a specific multicast group.
When you add a static MAC address, it remains in the switch's address table, regardless of whether the
device is physically connected to the switch. This saves the switch from having to re-learn a device's
MAC address when the disconnected or powered-off device is active on the network again.
1. From the main menu, click administrator → Filter Database →Static MAC Address.
2. In the MAC address box, enter the MAC address to and from which the port should permanently
forward traffic, regardless of the device’s network activity.
3. In the Port Number box, enter a port number.
4. If tag-based (IEEE 802.1Q) VLANS are set up on the switch, static addresses are associated with
individual VLANS. Type the VID (tag-based VLANS) to associate with the MAC address.
5. Click add.
5.6.3 Port Security
A port in security mode will be “locked” without permission of address learning. Only the
incoming packets with SMAC already existing in the address table can be forwarded normally.
User can disable the port from learning any new MAC addresses, then use the static MAC
addresses screen to define a list of MAC addresses that can use the secure port. Enter the settings,
then click Submit to apply the changes on this page.
MAC address filtering allows the switch to drop unwanted traffic. Traffic is filtered based on the
destination addresses. For example, if your network is congested because of high utilization from
one MAC address, you can filter all traffic transmitted from that MAC address, restoring network
flow while you troubleshoot the problem.
A Virtual LAN (VLAN) is a logical network grouping that limits the broadcast domain. It allows you to
isolate network traffic so only members of the VLAN receive traffic from the same VLAN members.
Basically, creating a VLAN from a switch is logically equivalent of reconnecting a group of network
devices to another Layer 2 switch. However, all the network devices are still plug into the same switch
physically.
Support of Tag-based VLAN (IEEE 802.1Q VLAN):
Tagged-based VLAN is an IEEE 802.1Q specification standard. Therefore, it is possible to create a
VLAN across devices from different switch venders. IEEE 802.1Q VLAN uses a technique to insert a
“tag” into the Ethernet frames. Tag contains a VLAN Identifier (VID) that indicates the VLAN numbers.
In order to an end station to send packets to different VLANs, it itself has to be either capable of tagging
packets it sends with VLAN tags or attached to a VLAN-aware bridge that is capable of classifying and
tagging the packet with different VLAN ID based on not only default PVID but also other information
about the packet, such as the protocol.
This page, user can create Tag-based VLAN, and enable or disable GVRP protocol.
There are 256 VLAN groups to provide configure. Enable 802.1Q VLAN, the all ports on the switch
belong to default VLAN, VID is 1. The default VLAN can’t be deleted.
1. Create a VLAN and add tagged member ports to it.
2. From the main menu, click administrator -- VLAN configuration.
3. Click “Add”
4. Type a name for the new VLAN.
5. Type a VID (between 2-4094). The default is 1.
6. From the Available ports box, select ports to add to the switch and click Add.
7. Click “Apply”.
5.7.1.1 Port VID
From the main Tag-based (IEEE 802.1Q) VLAN page, click Port VID Settings.
Port VID (PVID)
Set the port VLAN ID that will be assigned to untagged traffic on a given port. This feature is useful for
accommodating devices that you want to participate in the VLAN but that don’t support tagging. VDSL
concentrator each port allows user to set one PVID, the range is 1~4094, default PVID is 1. The PVID
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must as same as the VLAN ID that the port belong to VLAN group, or the untagged traffic will be
dropped.
Ingress Filtering
Ingress filtering lets frames belonging to a specific VLAN to be forwarded if the port belongs to that
VLAN.
VDSL concentrator have two ingress filtering rule as follows:
Ingress Filtering Rule 1: Forward only packets with VID matching this port's configured VID.
Ingress Filtering Rule 2: Drop Untagged Frame.
5.8 Spanning Tree
The Spanning-Tree Protocol (STP) is a standardized method (IEEE 802.1D) for avoiding loops in
switched networks. When STP enabled, to ensure that only one path at a time is active between any two
nodes on the network. You can enable Spanning-Tree Protocol on web management’s switch setting
advanced item, select enable Spanning-Tree protocol. We are recommended that you enable STP on all
XL-VC802 to ensure a single active path on the network.
1. You can view spanning tree information about the Root Bridge.
2. You can view spanning tree status about the switch as the following screen.
3. You can set new value for STP parameter, then click set Apply button to modify.
You can change priority value, A value used to identify the root bridge.The
Priority
bridgewith the lowest value has the highest priority and is selected as the root.
Enter a number 1 through 65535.
You can change Max Age value, The number of seconds a bridge waits
Max Age
without receiving Spanning-Tree Protocol configuration messages before
attempting areconfiguration. Enter a number 6 through 40.
You can change Hello time value, the number of seconds between the
Hello Time
transmission of Spanning-Tree Protocol configuration messages. Enter a
number 1 through 10.
Forward Delay
time
4.The following parameter can be configured on each port, click set Apply button to modify.
You can change forward delay time, The number of seconds a port waits
before changing from its Spanning-Tree Protocol learning and listening states
to the forwarding state. Enter a number 4 through 30.
Parameter Description
Port Priority
You can make it more or less likely to become the root port, the rage is
0-255,default setting is 128 the lowest number has the highest priority.
Specifies the path Cost of the port that switch uses to determine which port are
the forwarding ports the lowest number is forwarding ports, the rage is
Path Cost
1-65535 and default value base on IEEE802.1D
10Mb/s = 50-600
100Mb/s = 10-60
The Port Sniffer is a method for monitor traffic in switched networks. Traffic through ports can be
monitored by one specific port. That is, traffic goes in or out monitored ports will be duplicated into
sniffer port.
1. Sniffer Mode: Press Space key to set sniffer mode: Disable/Enable
2. Monitoring Port: It’s mean sniffer port can be used to see all monitor port traffic. You can connect
sniffer port to lan analyzer. Select Monitor Rx/Tx mode.
5.10 SNMP
Any Network Management running the simple Network Management Protocol (SNMP) can manage the
switch, Provided the Management Information Base (MIB) is installed correctly on the management
station. The SNMP is a Protocol that governs the transfer of information between management and agent.
Use this page to define management stations as trap managers and to enter SNMP community strings.
User can also define a name, location, and contact person for the switch. Fill in the system options data,
then click Apply to update the changes on this page.
Name: Enter a name to be used for the switch.
Location: Enter the location of the switch.
Contact: Enter the name of a person or organization.
Community strings serve as passwords and can be entered as one of the following:
RO: Read only. Enables requests accompanied by this string to display MIB-object information. RW:
Read write. Enables requests accompanied by this string to display MIB-object information and to set
MIB objects.
A trap manager is a management station that receives traps, the system alerts generated by the switch. If
no trap manager is defined, no traps are issued. Create a trap manager by entering the IP address of the
station and a community string.
5.11 SNR
The following information provides a view of the current VDSL Attenuation value of the unit.
SNR(Signal to Noise Ratio), when SNR>25db means Good Link
5.12 Security Manager
Using this page, user can change web management user name and password.
User name: Type the new user name.
Password: Type the new password.
Reconfirm password: Retype the new password.
Click Apply.
The following menu options provide some system control functions to allow a user to update
firmware and remote boot switch system:
1. Install TFTP Turbo98 and execution.
2. Copy firmware update version image.bin to TFTP Turbo98 directory.
3. In web management select administrator—TFTP update firmware.
4. Download new image.bin file then in web management press <update firmware>.
5. After update finished, press <reboot> to restart switch.
5.14 Configuration Backup
5.14.1 TFTP Restore Configuration
Use this page to set TFTP server address. You can restore EEPROM value from here, but you
must put back image in TFTP server, switch will download back flash image.
5.14.2 TFTP Backup Configuration
Use this page to set TFTP server IP address. You can save current EEPROM value from here,
then go to the TFTP restore configuration page to restore the EEPROM value.
5.15 Reset System
Reset XL-VC802 to default configuration, default value as below.
The VDSL provides home network architecture. Transforming an apartment into a
Multiple-Family Home network area, sharing a single internet account for multiple users with
Router & Cable Modem, it can provide unlimited access time in the internet at a reasonable low
price.
Bridging Functions – The XL-VC802 provides full transparent bridging function. It
automatically connects node addresses, that are later used to filter and forward all traffic based on
the destination address. When traffic passes between devices attached to the shared collision
domain, those packets are filtered from the VDSL concentrator. But when traffic must be passed
between unique segments (i.e., different ports of the VDSL concentrator), a temporary link is set
up between the VDSL concentrator’s port in order to pass this traffic, XL-VC802 (the high-speed
VDSL fabric).
Transceiver function - The XL-VC802 supports Ethernet to VDSL convert, It can be transmit or
receive packet from Ethernet port to the RJ21 port. Or VDSL port to Ethernet port.
Flexible Configuration –The XL-VC802 is not only designed to segment your network, but also
to provide a wide range of options in the configuration of Home network connections. It can be
used as a simple stand-alone VDSL concentrator; or can be connected with another VDSL
concentrator, Cable modem, Router, XDSL, ISDN, gateway or other network interconnection
devices in various configurations. Some of the common applications of the VDSL concentrator
are described in this chapter.
The XL-VC802 provides a high speed, 4/1, 5/10/15Mbps transmission over existing home
telephone wiring over a single Internet account to provide simultaneous independent Internet
access to multiple users. No mater ISDN Telephone system or POTS Telephone system you are.
VDSL Technology let you can use telephone system and VDSL network system in the same time.
6.2 Application for sharing a single internet account
If multiple users would like to share a single internet account using the XL-VC802, which is to be
connected to a IP sharing device, then to a xDSL or Cable Modem.
Note: For network applications that actually require Router (e.g., Interconnecting dissimilar
network types), attaching the VDSL concentrator directly to a router can significantly improve
overall home networking performance.
High bandwidth backbone ready The XL-VC802 provides 10/100Mps auto sensing for external
trunk device (Fiber optics, Wireless Bridge, xDSL & other WAN services)
The VDSL can be easily monitored through its comprehensive panel indicators. These indicators
assist the network manager in identifying problems of the VDSL concentrator may encounter.
This section describes common problems you may encounter and possible solutions
Symptom: POWER indicator does not light up (green) after power on. Cause: Defective power
outlet, power cord, internal power supply
Solution: Cheek the power outlet by trying another outlet that is functioning properly. Check the
power cord with another device. If these measures fail to resolve the problem, have the unit
power supply replaced by a qualified distributor.
Symptom: Link indicator does not light up (green) after making a connection.
Cause: Network interface (e.q., a network adapter card on the attached device), network cable, or
switch port is defective.
Solution:
1. Verifies the switch and attached device are powered on.
2. Be sure the cable is plug into both the switch and corresponding device.
3. Verify that the proper cable type is used and its length does not exceed specified
limits.
4. Check the adapter on the attached device and cable connections for possible
defects.
5. Replace the defective adapter or cable if necessary.
Symptom: VDSL Link can not be established.
Cause: Rusted phone wire, not standard 24 gauge phone wire, not twisted-pair phone wire, wrong
speed mode.
Solution: Check if speed of CO and CPE is in the same speed mode
depth value to 8 or above.
else please increase interleaver
7.1.2 System Diagnostics
Power and Cooling Problems
If the POWER indicator does not turn on when the power cord is plugged in, you may have a
problem with the power outlet, power cord, or internal power supply as explained in the previous
section. However, if the unit should turn itself off after running for a while, check for loose power
connections, power losses or surges at the power outlet, and verify that the fan on back of the unit
is unobstructed and running prior to shutdown. If you still cannot isolate the problem, then the
internal power supply may be defective. In this case, contact your supplier for assistance.
Verify that all system components have been properly installed. If one or more components
appear to be malfunctioning (e.g., the power cord or network cabling), test them in an alternate
environment where you are sure that all the other components are functioning properly.
Transmission Mode
The selections of the transmission mode for the RJ-45 ports are auto-negotiation using the default
method. Therefore, if the Link signal is disrupted (e.g., by unplugging the network cable and
plugging it back in again, or by resetting the power), the port will try to re-establish
communications with the attached device (auto-negotiation). If auto-negotiation fails, then
communications are set to half duplex by default. Based on this type of industry-standard
connection policy, if you are using a full-duplex device that does not support auto-negotiation,
communications can be easily lost (i.e., reset to the wrong mode) whenever the attached device is
reset or experiences a power fluctuation. The best way to resolve this problem is to upgrade these
devices to version that will support auto-negotiation.
Cabling
Verify that the cable type is correct. Be sure RJ-45 cable connectors are securely seated in the
required ports. Use 100Ω straight-through cables for all standard connections. Use Category 5
cable for 100Mbps Fast Ethernet connections, or Category 3, 4 or 5 cables for standard 10Mbps
Ethernet connections. Be sure RJ21 phone wiring, use 18~26 gauge.
Make sure all devices are connected to the network. Equipment any have been unintentionally
disconnected from the network.
When cascading two devices using RJ-45 station ports at both ends of the cable (XL-VC802)
supports auto MDIX), without crossover cable can be used.
Physical Configuration
If problems occur after altering the network configuration, restore the original connections, and
try to track the problem down by implementing the new changes, one step at a time. Ensure that
cable distances and other physical aspects of the installation do not exceed recommendations
System Integrity
As a last resort verify the switch integrity with a power-on reset. Turn the power to the switch off
and then on several times. If the problem still persists and you have completed all the preceding
diagnoses, contact your dealer for assistance.
XL-VC802 supports Port Based VLAN and 802.1Q Tag VLAN:
VLAN Select: From Web Management→Switch setting→Advanced : Select VLAN Operation
Mode by Port Based VLAN or 802.1Q Tag VLAN
7.3.1 Port Based VLAN
Packets can go among only members of the same VLAN group. Note all unselected ports are
treated as belonging to another single VLAN. If the port-based VLAN enabled, the
VLAN-tagging is ignored.
1. Click Add to create a new VLAN group.
2. Enter the VLAN name, group ID and select the members for the new VLAN.
Example - Add VLAN Group 1, member: port 1 and port 9
7.3.2 802.1Q Tag Vlan
Tagged-based VLAN is an IEEE 802.1Q specification standard. Therefore, it is possible to create
a VLAN across devices from different switch venders. IEEE 802.1Q VLAN uses a technique to
insert a “tag” into the Ethernet frames. Tag contains a VLAN Identifier (VID) that indicates the
VLAN numbers. In order to an end station to send packets to different VLANs, it itself has to be
either capable of tagging packets it sends with VLAN tags or attached to a VLAN-aware bridge
that is capable of classifying and tagging the packet with different VLAN ID based on not only
default PVID but also other information about the packet, such as the protocol.
In Web management, on page Administrator - Switch settings select Advanced: Protocol Enable
Setting set VLAN Operation Mode: Select “802.1Q without GVRP”.
This page, user can create Tag-based VLAN, and enable or disable GVRP protocol. There are
256 VLAN groups to provide configure. Enable 802.1Q VLAN, the all ports on the switch belong
to default VLAN,VID is 1. The default VLAN can’t be deleted and modified.
GVRP (GARP [Generic Attribute Registration Protocol] VLAN Registration Protocol)
GVRP allows automatic VLAN configuration between the switch and nodes. If the VDSL
concentrator is connected to a device with GVRP enabled, you can send a GVRP request using
the VID of a VLAN defined on the VDSL concentrator, the VDSL concentrator will
automatically add that device to the existing VLAN.
Port VID Configure port VID settings
From the main Tag-based (IEEE 802.1Q) VLAN page, click Port VID Settings.
Set the port VLAN ID that will be assigned to untagged traffic on a given port. This feature is
useful for accommodating devices that you want to participate in the VLAN but that don’t
support tagging. VDSL SWITCH each port allows user to set one PVID, the range is 1~4094,
default PVID is 1. The PVID must as same as the VLAN ID that the port belong to VLAN group,
or the untagged traffic will be dropped.
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant
to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment. This equipment generates,
uses, and can radiate radio frequency energy and, if not installed and used in accordance with the
instruction manual, may cause harmful interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful interference in which case the user will be
required to correct the interference at his/her own expense.
CE Mark Warning
This is a CE class A product. In a domestic environment, this product may cause radio interference in
which case the user may be required to take adequate measures.
Warranty
The original owner that the product delivered in this package will be free from defects in material and
workmanship for one year parts after purchase.
There will be a minimal charge to replace consumable components, such as fuses, power transformers,
and mechanical cooling devices. The warranty will not apply to any products which have been subjected
to any misuse, neglect or accidental damage, or which contain defects which are in any way attributable
to improper installation or to alteration or repairs made or performed by any person not under control of
The original owner.
The above warranty is in lieu of any other warranty, whether express, implied, or statutory, including but
not limited to any warranty of merchantability, fitness for a particular purpose, or any warranty arising
out of any proposal, specification, or sample. Shall not be liable for incidental or consequential damages.
We neither assumes nor authorizes any person to assume for it any other liability.
Note: Please do not tear off or remove the warranty sticker as shown, otherwise the warranty will be void.
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