1.3 How to Use This Manual............................................................................................................................14
2.1.1 Front Panel..........................................................................................................................................................21
2.1.2 LED Indications ................................................................................................................................................... 23
2.1.3 Wiring the AC Power Input ..................................................................................................................................25
2.1.4 Wiring the DC Power Input .................................................................................................................................. 25
2.1.5 Wiring the Faulty Alarm Contact ..........................................................................................................................26
2.1.6 Wiring the Digital Input / Output........................................................................................................................... 27
2.2 Installing the Managed Switch..................................................................................................................30
2.3.1 Installing the SFP Transceiver............................................................................................................................. 34
2.3.2 Removing the Module..........................................................................................................................................37
3.4 Web Management.......................................................................................................................................41
4. WEB CONFIGURATION...................................................................................................... 43
4.1 Main Web Page...........................................................................................................................................46
4.2.1 System Information..............................................................................................................................................48
4.2.2 IP Configuration...................................................................................................................................................49
4.2.3 IP Status ..............................................................................................................................................................52
4.2.7 Time Configuration .............................................................................................................................................. 59
4.2.11 CPU Load ..........................................................................................................................................................65
4.2.12 System Log .......................................................................................................................................................67
4.2.16 Digital Input/Output............................................................................................................................................72
4.2.20 Save Startup Config...........................................................................................................................................78
4.2.27 System Reboot..................................................................................................................................................85
4.3.2 SNMP System Configuration...............................................................................................................................87
4.3.4 SNMP System Information ..................................................................................................................................92
4.3.5.3 SNMPv3 Groups .......................................................................................................................................95
4.4 Port Management.....................................................................................................................................100
4.4.1 Port Configuration..............................................................................................................................................100
4.4.2 Port Statistics Overview.....................................................................................................................................103
4.4.3 Detailed Port Statistics.......................................................................................................................................104
4.4.5 Port Mirror .........................................................................................................................................................108
4.5 Link Aggregation...................................................................................................................................... 111
4.5.3 LACP System Status .........................................................................................................................................118
4.5.4 LACP Port Status............................................................................................................................................... 119
4.5.5 LACP Port Statistics ..........................................................................................................................................121
4.6.3 VLAN Port Configuration ...................................................................................................................................127
4.6.5 VLAN Port Status............................................................................................................................................... 135
4.6.7 Port Isolation .....................................................................................................................................................139
4.6.8.1 Two separate 802.1Q VLANs..................................................................................................................141
4.6.8.2 VLAN Trunking between two 802.1Q aware Switches ............................................................................146
4.6.10.3 Port Isolate ............................................................................................................................................148
4.7 Spanning Tree Protocol...........................................................................................................................155
4.7.1 Theory ...............................................................................................................................................................155
4.7.2 STP System Configuration ................................................................................................................................162
4.7.4 CIST Port Configuration ....................................................................................................................................166
4.7.8 Port Status.........................................................................................................................................................176
4.7.9 Port Statistics.....................................................................................................................................................178
4.8.6 IGMP Group Port Group Filtering ......................................................................................................................192
4.8.7 IGMP Snooping Status ...................................................................................................................................... 194
4.8.8 IGMP Group Information ...................................................................................................................................196
4.8.12 MLD Snooping Port Group Filtering................................................................................................................. 203
4.8.14 MLD Group Information ................................................................................................................................... 207
4.8.15 MLDv2 Information ..........................................................................................................................................208
4.8.17 MVR Status ..................................................................................................................................................... 213
4.8.18 MVR Groups Information.................................................................................................................................214
4.8.19 MVR SFM Information ..................................................................................................................................... 215
4.9 Quality of Service.....................................................................................................................................216
4.9.2 Port Policing ...................................................................................................................................................... 217
4.9.3 Port Shaping......................................................................................................................................................219
4.9.3.1 QoS Egress Port Schedule and Shapers ................................................................................................ 220
4.9.4 Port Classification.............................................................................................................................................. 222
4.9.4.1 QoS Ingress Port Tag Classification ........................................................................................................224
4.9.5 Port Scheduler................................................................................................................................................... 225
4.9.6 Port Tag Remarking...........................................................................................................................................226
4.9.6.1 QoS Egress Port Tag Remarking ............................................................................................................227
4.9.7 Port DSCP.........................................................................................................................................................229
4.9.11 QoS Control List ..............................................................................................................................................235
4.9.11.1 QoS Control Entry Configuration ...........................................................................................................237
6
4.9.12 QoS Status ...................................................................................................................................................... 240
4.9.13 Storm Control Configuration ............................................................................................................................242
4.10 Access Control Lists..............................................................................................................................253
4.10.1 Access Control List Status ............................................................................................................................... 253
4.10.2 Access Control List Configuration....................................................................................................................256
4.12.1 Port Limit Control............................................................................................................................................. 314
4.12.6 Port Security Status......................................................................................................................................... 322
4.12.7 Port Security Detail.......................................................................................................................................... 325
4.12.10 IP Source Guard Configuration......................................................................................................................332
4.12.11 IP Source Guard Static Table .........................................................................................................................333
4.13 MAC Address Table................................................................................................................................338
7
4.13.1 MAC Address Table Configuration...................................................................................................................338
4.13.2 MAC Address Table Status..............................................................................................................................341
4.14.6 Port Statistics...................................................................................................................................................363
4.15.3 Remote IP Ping Test ........................................................................................................................................368
4.16.2 Status ..............................................................................................................................................................373
4.17.2 RMON Alarm Status ........................................................................................................................................378
4.17.4 RMON Event Status ........................................................................................................................................380
4.17.5 RMON History Configuration ........................................................................................................................... 381
4.17.6 RMON History Status ......................................................................................................................................382
4.17.8 RMON Statistics Status ...................................................................................................................................384
4.19 Ring .........................................................................................................................................................389
4.19.3 Ethernet Ring Protocol Switch.........................................................................................................................395
4.19.4 Ethernet Ring Protocol Switch Configuration...................................................................................................397
8
4.19.5 Ring Wizard.....................................................................................................................................................401
4.19.6 Ring Wizard Example: ..................................................................................................................................... 402
Open the box of the Managed Switch and carefully unpack it. The box should contain the following items:
The NS4750-24S-4T-4X
Quick Installation Guide
User’s Manual CD
DB9 to RJ-45 Consol Cable
Rubber Feet
Rack Mount Accessory Kit
AC Power Cord
Dust Cap
If any of these are missing or damaged, please contact your dealer immediately. If possible, retain the carton including the original
x 1
x 1
x 1
x 1
x 4
x 1
x 1
x 33
packing material, and use them again to repack the product in case there is a need to return it to us for repair.
10
1.2 Product Descriptions
Multiple SFP Fiber Port Switch for Increasing Long-reach Networking of Enterprise, Telecoms and Campus
The NS4750 is equipped with advanced management functions and provides 24 100/1000Mbps dual speed SFP fiber ports, 4
10Gbps dual speed fiber ports and 4 10/100/1000Mbps TP/SFP ports delivered in a rugged strong case. It is capable of providing
non-blocking switch fabric and wire-speed throughput as high as 128Gbps in the temperature range from -10 to 60 degrees C
without any packet loss and CRC error, which greatly simplify the tasks of upgrading the enterprise LAN for catering to increasing
bandwidth demands. The NS4750 is specially designed for service provider to deliver profitable Ethernet network. The NS4750
adopts “Front Access” design, making the wiring and maintenance of the NS4750 placed in a cabinet very easy for technicians.
Support for 10Gb Ethernet
10Gb Ethernet which adopts full-duplex technology instead of low-speed, half-duplex CSMA/CD protocol, is a big leap in the
evolution of Ethernet. 10Gb Ethernet can be deployed in star or ring topologies. With 10Gb Ethernet, the NS4750 switch provides
broad bandwidth and powerful processing capacity. It is suitable for metropolitan networks and wide area networks. Using the
NS4750 switch, users can simplify network structures and reduce cost of network construction.
Optimized Design for MAN Redundant Ring, Fast Recovery for Surveillance or Industrial System
The NS4750 supports redundant ring technology and features strong rapid self-recovery capability to prevent interruptions and
external intrusions. It incorporates ITU G.8032 Ethernet Ring Protection Switching technology, Spanning Tree Protocol (802.1w
RSTP), and redundant power supply system into customer’s industrial automation network to enhance system reliability and
uptime in harsh factory environments. The NS4750 also protects customer’s industrial network connectivity with switching
recovery capability that is used for implementing fault tolerant ring and mesh network architectures. If the Industrial network is
interrupted accidentally, the fault recovery times could be less than 50ms to quickly bring the network back to normal operation.
Cost-effective IPv6 Managed Gigabit Switch Solution for Metro
Nowadays, lots of electronic products or mobile devices can browse the Internet, which means the need of IP address increases.
However, the current IPv4 network infrastructure is not capable enough to provide IP address to each single user/client. The
situation forces the ISP to come out with the IPv6 (Internet Protocol version 6) network infrastructure. To fulfill the demand, IFS
releases the IPv6 management Gigabit Ethernet Switch. It supports both IPv4 and IPv6 management functions. It can work with
the original network structure (IPv4) and also support the new network structure (IPv6). With easy and friendly management
interfaces and plenty of management functions included, the NS4750 Managed Switch is the best choice for you to build the IPv6
FTTx edge service and for Industries to connect with IPv6 network.
11
Digital Input and Digital Output for External Alarm
IFS NS4750 supports Digital Input, and Digital Output on the front panel. This external alarm offers technicians the ability to use
Digital Input to detect, and log external device status (such as door intrusion detector) for the alarm. As Digital Output could be
used to alarm if the NS4750 has port link down, link up or power failure.
12
Flexible and Extendable Solution
The 24 mini-GBIC slots built in the NS4750 support dual-speed, 100Base-FX and 1000Base-SX/LX SFP (Small Form-factor
Pluggable) fiber-optic modules, meaning the administrator now can flexibly choose the suitable SFP transceiver according to the
transmission distance or the transmission speed required to extend the network efficiently. The NS4750 supports SFP-DDM (Digital Diagnostic Monitor) function that can easily monitor real-time parameters of the SFP for network administrator, such as
Indicates that the switch is actively sending or receiving data over that port.
Indicates that the SFP port is link down.
Indicates the link through that port is successfully established with 1Gbps.
Indicates that the port is link down
Indicates the link through that SFP port is successfully established with speed
10Mbps or 100Mbps.
Indicates that the port is link down
24
10Base-SR/LR SFP+ interfaces for port25 to port28
LED Color Function
Green
Lights
Off
LNK/ACT
Lights
Orange
Off
Indicates the link through that SFP port is successfully established with
10Gbps
Indicates that the SFP port is link down
Indicates the link through that SFP port is successfully established with
1Gbps
Indicates that the SFP port is link down
2.1.3 Wiring the AC Power Input
The rear panel of the NS4750 indicates an AC inlet power socket, which accepts input power from 100 to 240V AC, 50/60Hz.
2.1.4 Wiring the DC Power Input
The 6-contact terminal block connector on the front panel of NS4750 is used for two DC redundant power input. Please follow the
steps below to insert the power wire.
1. Insert positive / negative DC power wires into contacts 1 and 2 for DC POWER 1, or 5 and 6 for DC POWER 2.
Figure 2-3: NS4750-24S-4T-4X Upper Panel
2. Tighten the wire-clamp screws for preventing the wires from loosening.
25
1 2 3 4 5 6
DC 1 DC 2
+ - + -
Figure 2-4 6-Pin Terminal Block Power Wiring Input
1. The wire gauge for the terminal block should be in the range of 12 ~ 24 AWG.
2. When performing any of the procedures like inserting the wires or tighten the wire-clamp screws,
make sure the power is OFF to prevent from getting an electric shock.
2.1.5 Wiring the Faulty Alarm Contact
The fault alarm contacts are in the middle (3 & 4) of the terminal block connector as the picture shows below. Inserting the wires,
the Managed Switch will detect the fault status of the power failure, or port link failure (available for managed model) when Fault Alarm function has been enabled. The following illustration shows an application example for wiring the fault alarm contacts
Insert the wires into the faulty alarm contacts
1. The wire gauge for the terminal block should be in the range of 12 ~ 24 AWG.
2. When performing any of the procedures like inserting the wires or tighten the wire-clamp screws, make
sure the power is OFF to prevent from getting an electric shock.
26
2.1.6 Wiring the Digital Input / Output
The 6-contact terminal block connector on the front panel of NS4750-24S-4T-4X is used for Digital Input and Digital Output.
Please follow the steps below to insert wire.
1. The NS4750-24S-4T-4X offers two DI and DO groups. 1 and 2 are DI groups, 3 and 4 are DO groups and 5 and 6 are GND
(ground).
Figure 2-5 Wiring the Redundant Power Inputs
DIDO GND
27
Tighten the wire-clamp screws for preventing the wires from loosening.
1 2 3 4 5 6
DI0 DI1 DO0 DO1 GND GND
Figure 2-6 6-Pin Terminal Block DI / DO Wiring Input
2. There are two Digital Input groups for you to monitor two different devices. The following topology shows how to wire DI0
and DI1. We use the NS4750-24S-4T-4X to be an example for describing DI application.
Figure 2-7 Wires DI0 and DI1 to Open Detector
28
3. There are two Digital Output groups for you to sense NS4750-24S-4T-4X port failure or power failure and issue a high or low
signal to external device. The following topology shows how to wire DO0 and DO1.
Figure 2-8 Wires DO0 and DO1 to Open Detector
29
2.2 Installing the Managed Switch
This section describes how to install your Managed Switch and make connections to the Managed Switch. Please read the
following topics and perform the procedures in the order being presented. To install your Managed Switch on a desktop or shelf,
simply complete the following steps.
In this paragraph, we will describe how to install the Managed Switch and the installation points attended to it.
2.2.1 Desktop Installation
To install the Managed Switch on desktop or shelf, please follow these steps:
Step1: Attach the rubber feet to the recessed areas on the bottom of the Managed Switch.
Step2: Place the Managed Switch on the desktop or the shelf near an AC/DC power source as shown inFigure 2-4.
Figure 2-4 Place the Managed Switch on the Desktop
Step3: Keep enough ventilation space between the Managed Switch and the surrounding objects.
Step4: Connect the Managed Switch to network devices.
Connect one end of a standard network cable to the 10/100/1000 RJ-45 ports on the front of the Managed Switch.
Connect the other end of the cable to the network devices such as printer servers, workstations or routers, etc.
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