Huawei USG9000 Architecture Hardware Structure

As a world leading Huawei networking products supplier, Hong Telecom Equipment Service LTD(HongTelecom) keeps regular stock of Huawei router and switch and all cards at very good price, also HongTelecom ship to worldwide with very fast delivery.

For related articles, visit the HongTelecom Blog and HongTelecom WordPress.

For real pictures of related product, visit the HongTelecom Gallery.

To buy related product, visit the HongTelecom Online Shop.

Introduction to the USG9000

At present, the USG9000 can work in three modes: routed mode, transparent mode, and composite mode.

  • routing mode In routing mode, the USG9000 uses the layer 3 for external connections, and all interfaces must be assigned with IP addresses. When the USG9000 is located between the internal network and the external network, you need to configure the interfaces, through which the USG9000 is connected with the internal network and the external network, with IP addresses on different network segments and re-plan the network topology. In this case, the USG9000 serves as a router. As shown in Figure 2-1, the USG9000 is connected with the internal network through an interface in the Trust zone, while it is connected with the external network through an interface in the Untrust zone. Note that the interface in Trust zone and the interface in Untrust zone reside in different two subnets.
    Figure 2-1  Networking in routing mode

    When working in routing mode, the USG9000 can complete ACL packet filtering. However, network topology needs to be changed. For example, internal network users need to change their gateways and routers' routing configurations need to be changed.

  • transparent mode In transparent mode, the USG9000 uses the layer 2 for external connections, and none of the interfaces can be assigned with IP addresses. In this case, the USG9000 is transparent to users in subnets and routers. That is, users do not feel the existence of the USG9000. As shown in Figure 2-2, the USG9000 is connected with the internal network through interfaces in the Trust zone, while it is connected with the external network through interfaces in the Untrust zone. Note that the internal network and the external network must reside in the same subnet.
    Figure 2-2  Networking in transparent mode

    If the USG9000 works in transparent mode, you do not need to change network topology. In transparent mode, you only need to place the USG9000 in the network like placing a bridge without need of modifying any existing configuration. Similar to the routing mode, IP packets also need to be filtered and checked in transparent mode, and internal users can be protected by the USG9000.

  • composite mode If there are both interfaces working in routing mode (such interfaces have IP addresses) and interfaces working in transparent mode (such interfaces have no IP address) in the USG9000, the USG9000 is working in composite mode. Composite mode is applied in the case of dual-system hot backup with transparent mode. The interface on which VRRP is enabled needs to be configured with an IP address, and other interfaces do not. Figure 2-3 shows a typical networking in composite mode.
    Figure 2-3  Networking in composite mode

    Master and backup USG9000s are connected with the internal network through interfaces in the Trust zone, while they are connected with the external network through interfaces in the Untrust zone. In addition, master and backup USG9000s connect each other and perform hot standby through VRRP. Note that the internal network and the external network must reside in the same subnet.

    Product Appearance

    The USG9000 uses an integrated chassis. The chassis can be installed in an N68E-22 cabinet or a standard International Electrotechnical Commission (IEC) 19-inch cabinet with a depth no less than 800 mm.

    USG9520 Chassis Overview

    The USG9520 chassis have both AC and DC models. Figure 1 shows a DC chassis, and the Figure 2 shows an AC chassis.

    Figure 1 Appearance of a DC chassis 
    Figure 2 Appearance of an AC chassis 

    Figure 3 shows the slots of the USG9520.

    Figure 3 Diagram of the board slot area 

    Table 1 Slot location of the USG9520
    Slot Number Quantity Slot Width Remarks
    1 to 3 3 41 mm (1.6 inches) Indicates the slots for Line Processing Units (LPUs) and Service Processing Units (SPUs). The LPUs and SPUs can co-exist to suit your individual requirements. But at least one LPU and one SPU is needed.
    4 to 5 2 41 mm (1.6 inches) Indicates the slots that are dedicated for the Main Processing Unit (MPU). The slot can house two MPUs to form 1:1 backup.

    USG9560 Chassis Overview

    Figure 4 shows the chassis of the USG9560.

    Figure 4 Appearance of the chassis of the USG9560 

    Figure 5 shows the slots of the USG9560.

    Figure 5 Diagram of the board slot area 

    Table 2 Diagram of slot location
    Slot Number Quantity Slot Width Remarks
    1 to 8 8 41 mm (1.6 inches) Indicates the slots for LPUs and Service Processing Unit As (SPUAs). The LPUs and SPUAs can be inserted at the same time. Select the LPUs and SPUAs as required. But at least one LPU and one SPUA is needed.
    9 to 10 2 36 mm (1.4 inches) Indicates two slots that are dedicated for Switch Router Units (SRUs). The slots can house two MPUs to form 1:1 backup.
    11 1 36 mm (1.4 inches) Indicates the slot for the Switch Fabric Unit (SFU). The SFU interworks with the SFU integrated on the SRU to form 2+1 backup for load-balancing.

    USG9580 Chassis Overview

    Figure 6 shows the chassis of the USG9580.

    Figure 6 Appearance of the chassis 

    Figure 7 shows the slots of the USG9580.

    Figure 7 Diagram of the board slot area 

    Table 3 Diagram of slot location
    Slot Number Quantity Slot Width Remarks
    1 to 16 16 41 mm (1.6 inches) Indicates the slots for LPUs and SPUAs. The LPUs and SPUAs can be inserted at the same time. Select the LPUs and SPUAs as required. But at least one LPU and one SPUA is needed.
    17 to 18 2 41 mm (1.6 inches) Indicates the slots that are dedicated for MPUs. The slots can house two MPUs to form 1:1 backup.
    19 to 22 4 41 mm (1.6 inches) Indicates the slots for SFUs. The slots can house four SFUs to form 3+1 backup for load balancing.

    Power and Heat Dissipation Systems of the USG9000

    Table 4 shows the overview of the power and heat dissipation systems of the USG9000 of different models.

    Table 4 Overview of the power and heat dissipation systems of the USG9000 of different models
    Component USG9520 USG9560 USG9580
    Power supply system Supports AC or DC power supplies.
    The power supply system consists of 1+1 redundant AC or DC power supply frames. Both the AC and DC power supply frames support power alarming.
    • In DC mode, four Power Entry Modules (PEMs) reside on the back panel to provide 2+2 backup.
    • In AC mode, an AC power supply frame resides externally, and connects to the power input ports of the PEMs through a rectifier that suits the total power of the integrated chassis.
    • In DC mode, eight PEMs reside on the back panel to provide 4+4 backup.
    • In AC mode, two AC power supply frames reside externally, and connect to the power input ports of the PEMs through a rectifier that suits the total power of the integrated chassis.
    Heat dissipation system
    • Air enters the chassis from the left and exits from the back.
    • The air intake vent is on the left of the chassis, and the air exhaust vent is on the back of the chassis.
    • The fans reside on the air exhaust vent. The two fan frames back against each other, each having two fans. The fan frame extracts air from the system for dissipation.
    • Air enters the chassis from the front and exits from the back.
    • The air intake vent is above the front board slot area, and the air exhaust vent is above the rear board slot area.
    • The fans reside on the air exhaust vent. The two fan frames back against each other. Each fan frame has one fan. The fan frame extracts air from the system for dissipation.
    • The two fan frames reside respectively on the upper and lower parts of the chassis. Air enters the chassis from the front and exits from the back.
    • For the upper fan frame, the air intake vent resides above the front board slot area, and the air exhaust vent resides above the rear board slot area. For the lower fan frame, the air intake vent resides above the rear board slot area, and the air exhaust vent resides above the front board slot area. The upper and lower fan frames function independently.
    • The board slot area for the SFU resides on the middle part of the device. The area intake vent for this slot area is on the left of chassis. To dissipate the SFUs in the two upper slots, the air enters from the left, and goes up on the right to converge with the air from the upper fan frame. To dissipate the SFUs in the two lower slots, the air enters from the left, and goes down on the right to converge with the air from the lower fan frame.