Switch

Select to view the device information and connection status in the past two hours, day, week or month.

Click this button to reload the data-related frames on this page.

Tag

Select one or multiple switches and click this button to create a new tag for the switch(es) or delete an existing tag.

Move

Select one or multiple switches and click this button to move the switch(es) to another site or remove the switch(es) from the current site.

Search

Specify your desired filter criteria to filter the list of switches.

Switch

This shows the number of switches connected to the site network.

Export

Click this button to save the switch list as a CSV or XML file to your computer.

Status

This shows whether the switch is online (green), has generated alerts (amber), goes off-line (red) or has been off-line for at least six days (gray).

Move the cursor over an amber alert icon to view the alerts the NCC generates when an error or something abnormal is detected on the IPTV network.

Name

This shows the descriptive name of the switch.

Tag

This shows the user-specified tag for the switch.

MAC address

This shows the MAC address of the switch.

LAN IP

This shows the local (LAN) IP address of the switch.

Public IP

This shows the global (WAN) IP address of the switch.

Model

This shows the model number of the switch.

# Port

This shows the number of the switch port which is connected to the NCC.

Configuration status

This shows whether the configuration on the switch is up-to-date.

Bandwidth Utilization

This shows what percentage of the upstream/downstream bandwidth is currently being used by the switch’s uplink port.

Production information

This shows the production information of the switch.

Connectivity

This shows the switch connection status. Nothing displays if the switch is off-line.

The gray time slot indicates the connection to the NCC is down, and the green time slot indicates the connection is up. Move the cursor over a time slot to see the actual date and time when a switch is connected or disconnected.

Description

This shows the user-specified description for the switch.

Serial number

This shows the serial number of the switch.

Usage

This shows the amount of data that has been transmitted or received by the switch’s clients.

Click this icon to display a greater or lesser number of configuration fields.

Configuration

Click the edit icon to change the device name, description, tags and address. You can also move the device to another site.

Name

This shows the descriptive name of the switch.

MAC Address

This shows the MAC address of the switch.

Serial Number

This shows the serial number of the switch.

Description

This shows the user-specified description for the switch.

Address

This shows the user-specified address for the switch.

Tags

This shows the user-specified tag for the switch.

Status

LAN IP

This shows the local (LAN) IP address of the switch. It also shows the IP addresses of the gateway and DNS servers.

Click the edit icon to open a screen where you can change the IP address, VLAN ID number and DNS server settings.

DHCP Server

This shows the IP address of the DHCP server.

Public IP

This shows the global (WAN) IP address of the switch.

Topology

Click Show to go to the SITE-WIDE > Monitor > Topology screen. See Topology.

RSTP Status

This shows Disabled when RSTP is disabled on the switch. Otherwise, it shows the name or MAC address of the switch that is the root bridge of the spanning tree, and the bridge priority.

IGMP Status

This shows whether IGMP is enabled on the switch. If IGMP is enabled, it also shows the ID number of the VLAN on which the switch learns the multicast group membership and the IP address of the switch interface in IGMP querier mode.

PoE Status

This shows the power management mode, the amount of power the switch is currently supplying to the connected PoE-enabled devices and the total power the switch can provide to the connected PoE-enabled devices on the PoE ports. N/A displays if the switch doesn’t support PoE.

Click the edit icon to open the PoE Configuration screen. See PoE Configuration.

History

Click Event log to go to the SWITCH > Monitor > Event log screen.

Configuration status

This shows whether the configuration on the switch is up-to-date.

Firmware

This shows whether the firmware on the switch is up-to-date or there is firmware update available for the switch.

Map

This shows the location of the switch on the Google map.

Photo

This shows the photo of the switch. Click Add to upload one or more photos. Click x to remove a photo.

Ports

This shows the ports on the switch. You can click a port to see the individual port statistics. See Switch Port Details. The port colors indicate the status of the ports.

Configure ports

Click this button to go to the Switch > Configure > Switch ports screen, where you can view port summary. See Switch Ports.

Live tools

Ping

Enter the host name or IP address of a computer that you want to perform ping in order to test a connection and click Ping.

Port Power Cycle

Enter the number of the port(s) and click the Reset button to disable and enable the port(s) again.

MAC table

This shows what device MAC address, belonging to what VLAN group (if any) is forwarded to which port(s).

You can define how it displays and arranges the data in the summary table below.

Reboot switch

Click the Reboot button to restart the switch.

Locator LED

Enter a time interval between 1 and 60 minutes to stop the locator LED from blinking. The locator LED will start to blink for the number of minutes set here

Uplink usage

Move the cursor over the chart to see the transmission rate at a specific time.

Zoom

Select to view the statistics in the past twelve hours, day, week, month, three months or six months.

Pan

Click to move backward or forward by one day or week.

Power Consumption

 

Select to view the switch power consumption in the past two hours, day, week or month.

 

This shows the current, total, maximum and minimum power consumption of the switch.

y-axis

The y-axis shows how much power is used in Watts.

x-axis

The x-axis shows the time period over which the power consumption is recorded.

PoE Mode

Select the power management mode you want the switch to use.

Classification mode - Select this if you want the switch to reserve the Max Power (mW) to each powered device (PD) according to the priority level. If the total power supply runs out, PDs with lower priority do not get power to function.

Consumption mode - Select this if you want the switch to manage the total power supply so that each connected PD gets a resource. However, the power allocated by the switch may be less than the Max Power (mW) of the PD. PDs with higher priority also get more power than those with lower priority levels.

Port

This is the port index number.

Priority

When the total power requested by the PDs exceeds the total PoE power budget on the switch, you can set the PD priority to allow the switch to provide power to ports with higher priority.

Select Critical to give the highest PD priority on the port.

Select Medium to set the switch to assign the remaining power to the port after all critical priority ports are served.

Select Low to set the switch to assign the remaining power to the port after all critical and medium priority ports are served.

Power-up

Set how the switch provides power to a connected PD at power-up.

802.3af - the switch follows the IEEE 802.3af Power over Ethernet standard to supply power to the connected PDs during power-up.

Legacy - the switch can provide power to the connected PDs that require high inrush currents at power-up. Inrush current is the maximum, instantaneous input current drawn by the PD when first turned on.

Pre-802.3at - the switch initially offers power on the port according to the IEEE 802.3af standard, and then switches to support the IEEE 802.3at standard within 75 milliseconds after a PD is connected to the port. Select this option if the switch is performing 2-event Layer-1 classification (PoE+ hardware classification) or the connected PD is NOT performing Layer 2 power classification using Link Layer Discovery Protocol (LLDP).

802.3at - the switch supports the IEEE 802.3at High Power over Ethernet standard and can supply power of up to 30W per Ethernet port. IEEE 802.3at is also known as PoE+ or PoE Plus. An IEEE 802.3at compatible device is referred to as Type 2. Power Class 4 (High Power) can only be used by Type 2 devices. If the connected PD requires a Class 4 current when it is turned on, it will be powered up in this mode.

Close

Click this button to exit this screen without saving.

Saving

Click this button to save your changes and close the screen.

Switch / Port

Select to view the port information and connection status in the past two hours, day, week or month.

Port

This drawing shows the ports on the switch.

Click a port to go to the corresponding port details screen. The selected port is highlighted in color. The port colors indicate the status of the ports.

Configuration

Click the edit icon to open the Switch ports screen and show the port(s) that match the filter criteria (the selected port number). See Switch Ports.

Summary

This shows the port’s VLAN settings.

RSTP

This shows whether RSTP is disabled or enabled on the port.

Port mirroring

This shows whether traffic is mirrored on the port.

Status

Name

This shows the name of the port.

Status

This shows the status of the port.

LLDP

This shows the LLDP (Link Layer Discovery Protocol) information received on the port.

History

Click Event log to go to the SWITCH > Monitor > Event log screen.

Bandwidth Utilization

Current Utilization

This shows what percentage of the upstream/downstream bandwidth is currently being used by the port.

Maximum Utilization

This shows the maximum upstream/downstream bandwidth utilization (in percentage).

Minimum Utilization

This shows the minimum upstream/downstream bandwidth utilization (in percentage).

y-axis

The y-axis represents the transmission rate in Kbps (kilobits per second).

x-axis

The x-axis shows the time period over which the traffic flow occurred.

Power Consumption

Total

This shows the total power consumption of the port.

Current Consumption

This shows the current power consumption of the port.

Maximum Consumption

This shows the maximum power consumption of the port.

Minimum Consumption

This shows the minimum power consumption of the port.

y-axis

The y-axis shows how much power is used in Watts.

x-axis

The x-axis shows the time period over which the power consumption is recorded.

Packets Counters

TX/RX Unicast

This shows the number of good unicast packets transmitted/received on the port.

TX/RX Multicast

This shows the number of good multicast packets transmitted/received on the port.

TX/RX Broadcast

This shows the number of good broadcast packets transmitted/received on the port.

TX/RX Pause

This shows the number of 802.3x Pause packets transmitted/received on the port.

IGMP V2/V3

Query Rx

This shows the number of IGMP query packets received on the port.

Report Rx

This shows the number of IGMP report packets received on the port.

Report Tx

This shows the number of IGMP report packets transmitted on the port.

Report Drops

This shows the number of IGMP report packets dropped on the port.

Leave Rx

This shows the number of IGMP leave packets received on the port.

Leave Tx

This shows the number of IGMP leave packets transmitted on the port.

Leave Drops

This shows the number of IGMP leave packets dropped on the port.

Error Packets

RX CRC

This shows the number of packets received with CRC (Cyclic Redundant Check) error(s).

Length

This shows the number of packets received with a length that was out of range.

Runt

This shows the number of packets received that were too short (shorter than 64 octets), including the ones with CRC errors.

IPv4 Address

This shows the IP address of the incoming frame which is forwarded on the port.

Move the cursor over the information icon to see how the IP address information is obtained.

MAC Address

This shows the MAC address of the incoming frame which is forwarded on the port.

VLAN

This shows the VLAN group to which the incoming frame belongs.

Cable Diagnostics

Diagnose

Click Diagnose to perform a physical wire-pair test of the Ethernet connections on the port. The following fields display when you diagnose a port.

Channel

An Ethernet cable usually has four pairs of wires. A 10BASE-T or 100BASE-TX port only use and test two pairs, while a 1000BASE-T port requires all four pairs.

This displays the descriptive name of the wire-pair in the cable.

Pair Status

OK: The physical connection between the wire-pair is okay.

Open: There is no physical connection (an open circuit detected) between the wire-pair.

Short: There is an short circuit detected between the wire-pair.

Unknown: The Switch failed to run cable diagnostics on the cable connected this port.

Unsupported: The port is a fiber port or it is not active.

Cable Length

This displays the total length of the Ethernet cable that is connected to the port when the Pair Status is OK and the switch chipset supports this feature.

This shows N/A if the Pair Status is Open or Short. Check the Distance to fault.

This shows Unsupported if the switch chipset does not support to show the cable length.

Distance to fault (m)

This displays the distance between the port and the location where the cable is open or shorted.

This shows N/A if the Pair Status is OK.

This shows Unsupported if the switch chipset does not support to show the distance.

DDMI

This section is available only on an SFP (Small Form Factor Pluggable) port.

DDMI

Click DDMI (Digital Diagnostics Monitoring Interface) to display real-time SFP transceiver information and operating parameters on the port. You can also see the alarm and warning thresholds for temperature, voltage, transmission bias, transmission and receiving power.

Port

This shows the number of the port on the switch.

Vendor

This shows the vendor name of the transceiver installed in the port.

PN

This shows the part number of the transceiver installed in the port.

SN

This shows the serial number of the transceiver installed in the port.

Revision

This shows the firmware version of the transceiver installed in the port.

Date-code

This shows the date the installed transceiver’s firmware was created.

Transceiver

This shows the type and the Gigabit Ethernet standard supported by the transceiver installed in the port.

Calibration

This shows whether the diagnostic information is internally calibrated or externally calibrated.

Current

This shows the current operating parameters on the port, such as transceiver temperature, laser bias current, transmitted optical power, received optical power and transceiver supply voltage.

High Alarm Threshold

This shows the high alarm threshold for temperature, voltage, transmission bias, transmission and receiving power. A trap is sent when the operating parameter is above the threshold.

High Warn Threshold

This shows the high warning threshold for temperature, voltage, transmission bias, transmission and receiving power.

Low Warn Threshold

This shows the low alarm threshold for temperature, voltage, transmission bias, transmission and receiving power. A trap is sent when the operating parameter is below the threshold.

Low Alarm Threshold

This shows the low warning threshold for temperature, voltage, transmission bias, transmission and receiving power.

Switch - Client

Select to view the device information and connection status in the past two hours, day, week or month.

Click this button to reload the data-related frames on this page.

Search

Specify your desired filter criteria to filter the list of clients.

Clients

This shows the number of clients connected to a switch in the site network.

Export

Click this button to save the client list as a CSV or XML file to your computer.

Status

This shows whether the client is online (green), or goes off-line (red).

Description

This shows the descriptive name of the client.

Click the name to display the individual client statistics. See Client Details.

MAC Address

This shows the MAC address of the client.

Connected to

This shows the name of the Nebula managed switch to which the client is connected.

Click the name to display the individual switch statistics. See Switch Details.

Port

This shows the number of the switch port to which the client is connected.

VLAN

This shows the ID number of the VLAN to which the client belongs.

First seen

This shows the first date and time the client was discovered.

Last seen

This shows the last date and time the client was discovered.

LLDP

This shows the LLDP (Link Layer Discovery Protocol) information received from the remote device.

IPv4 address

This shows the IP address of the client. Move the cursor over the information icon to see how the IP address information is obtained.

Click this icon to display a greater or lesser number of configuration fields.

Basic Information

Status

This shows whether the client is online (green), or goes off-line (red). It also shows the last date and time the client was discovered.

LLDP information

This shows the LLDP (Link Layer Discovery Protocol) information received from the remote device.

Manufacturer

This shows the manufacturer of the client device.

Network

IP address

This shows the IP address of the client.

MAC address

This shows the MAC address of the client.

Total channels

This shows the total number of IPTV channels that match the search criteria.

Channel in use

This shows the number of channels that are being watched by IPTV clients.

Current viewers

This shows the number of clients who are watching the IPTV channels.

Search

Specify a date/time and select to view the channels available in the past day, week or month before the specified date/time after you click Search.

You can also select Range in the second field, set a time range and click Search to display only the channels available within the specified period of time.

Channel Summary

 

Select to view the channels according to the ranking. Alternatively, select Select channels to choose specific channels and click Apply.

y-axis

The y-axis represents the popularity of IPTV channels.

x-axis

The x-axis shows the name of the IPTV channel. It shows the channel’s multicast group address by default.

Network Analytic Alert

This shows the alerts the NCC generates when an error or something abnormal is detected on the IPTV network.

For example, the maximum number of the IGMP multicast groups (TV channels) a switch port can join is reached and new groups replace the earliest ones, UPnP packets are detected on the IPTV network and may interfere with IPTV traffic to cause TV pixelation, or high bandwidth usage on a certain switch port results in loss of video quality.

Channel Information

Channel

This shows the name of the channel. Click the edit icon to change the channel name.

Click the channel name to display the channel’s client statistics. See Channel Information.

Switch

This shows the name of the switch to which the client is connected.

Port Name

This shows the name of the switch port to which the client is connected.

Port

This shows the number of the switch port to which the client is connected.

VID

This shows the ID number of the VLAN to which the switch port belongs.

Client

This shows the IP address of the client who is watching the TV program on the channel.

View-time

This shows the amount of time the client has spent watching the IPTV channel.

 

Select a specific date to display only the clients who watch the IPTV channel on that day.

Current Viewer

This shows the number of clients who are currently watching the IPTV channel.

y-axis

The y-axis shows the number of clients watching the IPTV channel.

x-axis

The x-axis shows the hour of the day in 24-hour format.

Switch

This shows the name of the switch to which the client is connected.

Port Name

This shows the name of the switch port to which the client is connected.

Port

This shows the number of the switch port to which the client is connected.

VID

This shows the ID number of the VLAN to which the switch port belongs.

Client

This shows the IP address of the client who is watching the TV program on the channel.

View-time

This shows the amount of time the client has spent watching the IPTV channel.

Switch - Summary report

Select to view the report for the past day, week or month. Alternatively, select Select range... to specify a time period the report will span. You can also select the number of results you want to view in a table.

Email report

Click this button to send summary reports by email, change the logo and set email schedules.

Consumption

Total

This shows the total power consumption of the switch ports.

Current Consumption

This shows the current power consumption of the switch ports.

Max Consumption

This shows the maximum power consumption of the switch ports.

Min Consumption

This shows the minimum power consumption of the switch ports.

y-axis

The y-axis shows how much power is used in Watts.

x-axis

The x-axis shows the time period over which the power consumption is recorded.

Top power consumption

 

This shows the index number of the Nebula switch.

Name

This shows the descriptive name of the Nebula switch.

Model

This shows the model number of the Nebula switch.

Power Usage

This shows the total amount of power consumed by the Nebula switch’s connected PoE device(s) during the specified period of time.

Peak Power

 

This shows the index number of the Nebula switch.

Name

This shows the descriptive name of the Nebula switch.

Model

This shows the model number of the Nebula switch.

Max Power

This shows the maximum power consumption for the Nebula switch’s connected PoE device(s) during the specified period of time.

Power %

This shows what percentage of the Nebula switch’s total power budget has been consumed.

Top uplink port

 

This shows the index number of the Nebula switch.

Name

This shows the descriptive name of the Nebula switch.

Model

This shows the model number of the Nebula switch.

Usage

This shows the amount of data that has been transmitted through the switch’s uplink port.

Top port

 

This shows the index number of the Nebula switch port.

Name

This shows the descriptive name of the Nebula switch.

Port

This shows the port number on the Nebula switch.

Model

This shows the model number of the Nebula switch.

Usage

This shows the amount of data that has been transmitted through the switch’s port.

Location

This shows the location of the Nebula switches on the map.

Switch ports

Select to view the detailed information and connection status of the switch port in the past two hours, day, week or month.

Click this button to reload the data-related frames on this page.

Edit

Select the port(s) you want to configure and click this button to configure switch settings on the port(s), such as link aggregation, PoE schedule, LLDP and STP.

Aggregate

Select more than one port and click this button to group the physical ports into one logical higher-capacity link.

Split

Select a trunk group and click this button to delete the trunk group. The ports in this group then are not aggregated.

A trunk group is one logical link containing multiple ports.

Tag

Click this button to create a new tag or delete an existing tag.

Search

Specify your desired filter criteria to filter the list of switch ports.

Switch ports

This shows the number of ports on the switch.

Export

Click this button to save the switch port list as a CSV or XML file to your computer.

Switch/Port

This shows the switch name and port number.

If the port is added to a trunk group, this also shows whether it is configured as a static member of the trunk group (Static) or configured to join the trunk group via LACP (LACP). If the port is connected to a uplink gateway, it shows Uplink.

Click details to display the port details screen. See Switch Port Details.

An amber alert icon displays if the NCC generates alerts when an error or something abnormal is detected on the port for the IPTV network. Move the cursor over the alert icon to view the alert details.

Port name

This shows the descriptive name of the port.

#Port

This shows the port number.

LLDP

This shows whether Link Layer Discovery Protocol (LLDP) is supported on the port.

Received broadcast packets

This shows the number of good broadcast packets received.

Received bytes

This shows the number of bytes received on this port.

Received packets

This shows the number of received frames on this port.

Sent broadcast packets

This shows the number of good broadcast packets transmitted.

Sent bytes

This shows the number of bytes transmitted on this port.

Sent multicast packets

This shows the number of good multicast packets transmitted.

Received multicast packets

This shows the number of good multicast packets received.

Sent packets

This shows the number of transmitted frames on this port.

Total bytes

This shows the total number of bytes transmitted or received on this port.

Enabled

This shows whether the port is enabled or disabled.

Link

This shows the speed of the Ethernet connection on this port.

Auto (auto-negotiation) allows one port to negotiate with a peer port automatically to obtain the connection speed and duplex mode that both ends support.

Connection

This shows the connection status of the port.

Move the cursor over a time slot to see the actual date and time when a port is connected or disconnected.

RADIUS policy

This shows the name of RADIUS authentication policy applied to the port.

Allowed VLAN

This shows the VLANs from which the traffic comes is allowed to be transmitted or received on the port.

PoE

This shows whether PoE is enabled on the port.

RSTP

This shows whether RSTP is enabled on the port.

Status

If STP/RSTP is enabled, this field displays the STP state of the port.

If STP/RSTP is disabled, this field displays FORWARDING if the link is up, otherwise, it displays Disabled.

Schedule

This shows the name of the PoE schedule applied to the port.

Type

This shows the port type (Trunk or Access).

PVID

This shows the port VLAN ID. It is a tag that adds to incoming untagged frames received on the port so that the frames are forwarded to the VLAN group that the tag defines.

Tag

This shows the user-specified tag that the switch adds to the outbound traffic on this port.

Storm Control

This shows whether traffic storm control is enabled or disabled on the port.

Broadcast (pps)

This shows the maximum number of broadcast packets the switch accepts per second on this port.

Multicast (pps)

This shows the maximum number of multicast packets the switch accepts per second on this port.

DLF (pps)

This shows the maximum number of DLF packets the switch accepts per second on this port.

Loop Guard

This shows whether loop guard is enabled or disabled on the port.

Number of IGMP Group

This shows the number of IGMP groups the port has joined.

Click this icon to display a greater or lesser number of configuration fields.

Switch ports

This shows the switch name and port number for the port(s) you are configuring in this screen.

Name

Enter a descriptive name for the port(s).

Tags

Select or create a new tag for outgoing traffic on the port(s).

Enabled

Select to enable or disable the port(s). A port must be enabled for data transmission to occur.

RSTP

Select to enable or disable RSTP on the port(s).

STP guard

This field is available only when RSTP is enabled on the port(s).

Select Root guard to prevent the switch(es) attached to the port(s) from becoming the root bridge.

Select BPDU guard to have the switch shut down the port(s) if there is any BPDU received on the port(s).

Otherwise, select Disable.

LLDP

Select to enable or disable LLDP on the port(s).

PoE

Select Enable to provide power to a PD connected to the port(s).

Link

Select the speed and the duplex mode of the Ethernet connection on the port(s). Choices are Auto-1000M, 10M/Half Duplex, 10M/Full Duplex, 100M/Half Duplex, 100M/Full Duplex and 1000M/Full Duplex (Gigabit connections only).

PoE schedule

This field is available only when you enable PoE.

Select a pre-defined schedule (created using the Switch > Configure > PoE schedule screen) to control when the switch enables PoE to provide power on the port(s).

If you enable PoE and select Unschedule, PoE is always enabled on the port(s).

Port Isolation

Select to enable or disable port isolation on the port(s).

The port(s) with port isolation enabled cannot communicate with each other. They can communicate only with the CPU management port of the same switch and the switch’s other ports on which the isolation feature is not enabled.

Bandwidth Control

Select to enable or disable bandwidth control on the port(s).

Specify the maximum bandwidth allowed in kilobits per second (Kbps) for the incoming traffic flow on the port(s).

Specify the maximum bandwidth allowed in kilobits per second (Kbps) for the out-going traffic flow on the port(s).

Loop guard

Select to enable or disable loop guard on the port(s).

Storm Control

Select to enable or disable broadcast storm control on the port(s).

Broadcast (pps)

Specifies the maximum number of broadcast packets the switch accepts per second on the port(s).

Multicast (pps)

Specifies the maximum number of multicast packets the switch accepts per second on the port(s).

DLF (pps)

Specifies the maximum number of DLF packets the switch accepts per second on the port(s).

Type

Set the type of the port.

Select Access to configure the port as an access port which can carry traffic for just one single VLAN. Frames received on the port are tagged with the port VLAN ID.

Select Trunk to configure the port as a trunk port which can carry traffic for multiple VLANs over a link. A trunk port is always connected to a switch or router.

PVID

A PVID (Port VLAN ID) is a tag that adds to incoming untagged frames received on a port so that the frames are forwarded to the VLAN group that the tag defines.

Enter a number between 1and 4094 as the port VLAN ID.

RADIUS policy

This field is available only when you select Access in the Type field.

Select the name of the pre-configured RADIUS policy that you want to apply to the port(s). Select Open if you don’t want to enable port authentication on the port(s).

Allowed VLANs

This field is available only when you select Trunk in the Type field.

Specify the VLANs from which the traffic comes is allowed to be transmitted or received on the port(s).

IPTV Setting

Overwrite advanced IGMP setting

Select ON to overwrite the port’s advanced IGMP settings (configured in the Configure > Advanced IGMP screen) with the settings you configure in the fields below. Otherwise, select OFF.

Leave Mode

Select Immediate Leave to set the switch to remove this port from the multicast tree immediately when an IGMP leave message is received on this port. Select this option if there is only one host connected to this port.

Select Normal Leave or Fast Leave and enter an IGMP normal/fast leave timeout value to have the switch wait for an IGMP report before the leave timeout when an IGMP leave message is received on this port. You need to specify how many miliseconds the switch waits for an IGMP report before removing an IGMP snooping membership entry when an IGMP leave message is received on this port from a host.

In normal leave mode, when the Switch receives an IGMP leave message from a host on a port, it forwards the message to the multicast router. The multicast router then sends out an IGMP Group-Specific Query (GSQ) message to determine whether other hosts connected to the port should remain in the specific multicast group. The Switch forwards the query message to all hosts connected to the port and waits for IGMP reports from hosts to update the forwarding table.

In fast leave mode, right after receiving an IGMP leave message from a host on a port, the switch itself sends out an IGMP Group-Specific Query (GSQ) message to determine whether other hosts connected to the port should remain in the specific multicast group. This helps speed up the leave process.

Maximum Group

Select Enable and enter the maximum number of multicast groups this port is allowed to join. Once a port is registered in the specified number of multicast groups, any new IGMP join report received on this port will replace the earliest group entry in the multicast forwarding table.

Otherwise, select Disable to turn off multicast group limits.

IGMP Filtering Profile

An IGMP filtering profile specifies a range of multicast groups that clients connected to the switch are able to join.

Select the name of the IGMP filtering profile to use for this port. Otherwise, select No Select to have no restriction and allow the port to join any multicast group.

Fixed Router Port

Select Auto to have the switch use the port as an IGMP query port if the port receives IGMP query packets. The switch forwards IGMP join or leave packets to an IGMP query port.

Select Fixed to have the switch always use the port as an IGMP query port. This helps prevent IGMP network topology changes when query packet losses occur in the network.

Management rules

The NCC automatically creates rules to allow traffic from/to the Nebula control center IP addresses in the list.

Customization rules

Click the icon of a rule and drag the rule up or down to change the order.

Enabled

Select the check box to turn on the rule. Otherwise, clear the check box to turn off the rule.

Policy

Select to allow or deny traffic that matches the filtering criteria in the rule.

Protocol

Select the type of IP protocol used to transport the traffic to which the rule is applied.

Source

Enter the source IP address of the packets that you want to filter.

Src port

Enter the source port number(s) that defines the traffic type.

Destination

Enter the destination IP address of the packets that you want to filter.

Dst port

Enter the destination port number(s) that defines the traffic type.

VLAN

Enter the ID number of the VLAN group to which the matched traffic belongs.

Description

Enter a descriptive name for the rule.

Delete

Click the delete icon to remove the rule.

Add

Click this button to create a new rule.

IGMP snooping

Select ON to enable and configure IGMP snooping settings on all switches in the site. Select OFF to disable it.

IGMP-snooping VLAN

Select Auto-detect to have the switch learn multicast group membership information of any VLANs automatically.

Select User Assigned VLANs and enter the VLAN ID(s) to have the switch only learn multicast group membership information of the VLAN(s) that you specify.

Unknown multicast drop

Specify the action to perform when the switch receives an unknown multicast frame. Select ON to discard the frame(s). Select OFF to send the frame(s) to all ports.

IGMP filtering profiles

An IGMP filtering profile specifies a range of multicast groups that clients connected to the switch are able to join.

You can set the switch to filter the multicast group join reports on a per-port basis by configuring an IGMP filtering profile and associating a port to the profile.

Edit

Click the edit icon to change the profile settings. See Add/Edit IGMP Filtering Profiles.

Remove

Click the remove icon to delete the profile.

Add

Click this button to create a new profile. See Add/Edit IGMP Filtering Profiles.

IPTV Topology Setup

The following three buttons are available only when there are multiple switches in the site and your administrator account has full access to this screen.

IGMP Snooping

Select the switch(es) you want to configure and click this button to turn on or off IGMP snooping on the selected switch(es).

Role

Select the switch(es) you want to configure and click this button to change the IGMP role of the selected switch(es).

Port Setting

Select the switch(es) you want to configure and click this button to open the Port Settings screen, where you can change IGMP leave mode and IGMP filtering profile for the ports on the selected switch(es). See IGMP Port Settings.

The following list shows you the IGMP settings for each switch in the site.

Switch Name

This shows the name of the switch in the site.

IGMP Snooping

This shows whether IGMP snooping is enabled or not on the switch.

Role

This shows whether the switch is acting as an IGMP snooping querier, aggregation switch or access switch in the IPTV network. Click the question mark to view more information about IGMP roles.

Port Setting

Click Advanced Setup to open the Port Settings screen, where you can change IGMP leave mode and IGMP filtering profile for the ports on the switch. See IGMP Port Settings.

Click this icon to display a greater or lesser number of configuration fields.

The following fields display when the IGMP role of a switch is set to Querier.

VLAN

Enter the ID number of the VLAN on which the switch learns the multicast group membership.

Querier IP Interface

Enter the IP address of the switch interface in IGMP querier mode.

The switch acts as an IGMP querier in that network/VLAN to periodically send out IGMP query packets with the interface IP address and update its multicast forwarding table.

Mask

Enter the subnet mask of the switch interface in IGMP querier mode.

Remove

Click the remove icon to delete the rule.

Add

Click this button to create a new rule.

Profile Name

Enter a descriptive name for this profile for identification purposes.

Rule

This shows the index number of the rule.

Start IP Address

Type the starting multicast IP address for a range of multicast IP addresses that you want to belong to the IGMP filter profile.

End IP Address

Type the ending multicast IP address for a range of IP addresses that you want to belong to the IGMP filter profile.

If you want to add a single multicast IP address, enter it in both the Start IP Address and End IP Address fields.

Add Rule

Click this button to create a new rule in this profile.

Close

Click this button to exit this screen without saving.

Save & Back

Click this button to save your changes and close the screen.

Switch name

This shows the name of the switch(es) that you select to configure.

Role

This shows whether the switch(es) you selected is an IGMP snooping querier, aggregation switch or access switch in the IPTV network.

Leave Mode

Select Immediate Leave to set the switch to remove this port from the multicast tree immediately when an IGMP leave message is received on this port. Select this option if there is only one host connected to this port.

Select Normal Leave or Fast Leave and enter an IGMP normal/fast leave timeout value to have the switch wait for an IGMP report before the leave timeout when an IGMP leave message is received on this port. You need to specify how many miliseconds the switch waits for an IGMP report before removing an IGMP snooping membership entry when an IGMP leave message is received on this port from a host.

In normal leave mode, when the Switch receives an IGMP leave message from a host on a port, it forwards the message to the multicast router. The multicast router then sends out an IGMP Group-Specific Query (GSQ) message to determine whether other hosts connected to the port should remain in the specific multicast group. The Switch forwards the query message to all hosts connected to the port and waits for IGMP reports from hosts to update the forwarding table.

In fast leave mode, right after receiving an IGMP leave message from a host on a port, the switch itself sends out an IGMP Group-Specific Query (GSQ) message to determine whether other hosts connected to the port should remain in the specific multicast group. This helps speed up the leave process.

Maximum Group

Select Enable and enter the maximum number of multicast groups this port is allowed to join. Once a port is registered in the specified number of multicast groups, any new IGMP join report received on this port will replace the earliest group entry in the multicast forwarding table.

Otherwise, select Disable to turn off multicast group limits.

IGMP Filtering Profile

An IGMP filtering profile specifies a range of multicast groups that clients connected to the switch are able to join.

Select the name of the IGMP filtering profile to use for this port. Otherwise, select No Select to have no restriction and allow the port to join any multicast group.

Reset

Click this button to return the screen to its last-saved settings.

Close

Click this button to exit this screen without saving.

Save

Click this button to save your changes and close the screen.

Password for MAC-Base Auth

Type the password the switch sends along with the MAC address of a client for authentication with the RADIUS server. You can enter up to 32 printable ASCII characters.

Name

Enter a descriptive name for the policy.

RADIUS policy type

Select MAC-Base if you want to validate access to the port(s) based on the MAC address and password of the client.

Select 802.1x if you want to validate access to the port(s) based on the user name and password provided by the client.

Guest VLAN

A guest VLAN is a pre-configured VLAN on the switch that allows non-authenticated users to access limited network resources through the switch.

Enter the number that identifies the guest VLAN.

Port security

Click On to enable port security on the port(s). Otherwise, select Off to disable port security on the port(s).

Limited numbers of MAC address

This field is configurable only when you enable port security.

Specify the maximum number of MAC addresses that may be learned on a port.

Switch ports

This shows the number of the switch ports to which this policy is applied.

Add

Click this button to create a new policy.

Name

Enter a descriptive name for this schedule for identifying purposes.

Schedule templates

Select a pre-defined schedule template or select Custom schedule and manually configure the day and time at which PoE is enabled.

Day

This shows the day of the week.

Availability

Click On to enable PoE on this day. Otherwise, select Off to turn PoE off.

From - To

Specify the hour and minute when the schedule begins and ends each day

Time display

Select the time format in which the time is displayed.

Close

Click this button to exit this screen without saving.

Add

Click this button to save your changes and close the screen.

VLAN configuration

Management VLAN

Enter the VLAN identification number associated with the switch IP address. This is the VLAN ID of the CPU and is used for management only. The default is "1". All ports, by default, are fixed members of this "management VLAN" in order to manage the device from any port. If a port is not a member of this VLAN, then users on that port cannot access the device. To access the switch make sure the port that you are connected to is a member of Management VLAN.

STP configuration

Rapid spanning tree protocol (RSTP)

Select On to enable RSTP on the switch. Otherwise, select Off.

STP bridge priority

Bridge priority is used in determining the root switch, root port and designated port. The switch with the highest priority (lowest numeric value) becomes the STP root switch. If all switches have the same priority, the switch with the lowest MAC address will then become the root switch.

The lower the numeric value you assign, the higher the priority for this bridge.

Click the button to create a new entry. Select the switch(es) for which you want to configure the bridge priority, and select a value from the drop-down list box.

Quality of service

Quality of service

Enter a VLAN ID and select the priority level that the switch assigns to frames belonging to this VLAN.

Click Add to create a new entry.

Port mirroring

Port mirroring

Click Add to create a new entry.

Select the switch for which you want to configure port mirroring, specify the destination port you copy the traffic to in order to examine it in more detail without interfering with the traffic flow on the original port(s), and also enter the source port on which you mirror the traffic.

Authentication servers

RADIUS server

Click Add to create a new RADIUS server entry.

Enter the IP address of an external RADIUS server, the port of the RADIUS server for authentication (default 1812), and a password (up to 32 alphanumeric characters) as the key to be shared between the external RADIUS server and the switch.

Voice VLAN

Voice VLAN

Select On to enable the Voice VLAN feature on the switch. Otherwise, select Off.

It groups the voice traffic with defined priority into an assigned VLAN which enables the separation of voice and data traffic coming onto the switch port.

Voice VLAN ID

Enter a VLAN ID number.

Priority

Select the priority level of the Voice VLAN from 1 to 6.

OUI

Click the button to add MAC address of IP phones from specific manufacturers by using its ID from the Organizationally Unique Identifiers (OUI). You also need to type the mask for the specified MAC address to determine which bits a packet’s MAC address should match.

Enter “f” for each bit of the specified MAC address that the IP phone’s MAC address should match. Enter “0” for the bit(s) of the IP phone’s MAC address, which can be of any hexadecimal character(s).

DHCP Server Guard

 

DHCP Server Guard

Select On to enable the DHCP server guard feature on the switch in order to prevent illegal DHCP servers. Only the first DHCP server that assigned the switch IP address is allowed to assign IP addresses to devices in this management VLAN.

Otherwise, select Off to disable it.