Mpub - Huawei Eudemon8000E Series Manual

HUAWEI Eudemon8000E Firewall
Hardware Description
System Control and Management Unit
As the system control and management unit, the MPUB provides the following functions on the
system control panel:
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System Maintenance Unit
As the system maintenance unit, the MPUB collects monitored information to test system units
locally or remotely, or implement in-service upgrading of system units.
The MPUB periodically collects information about the operation of system units through the
Monitorbus. The MPUB then generates related control information based on the collected
information, for example, the detection of board installations and adjustments to fan speed.
Through the joint test action group (JTAG) bus, the MPUB remotely or locally tests system
units, or performs in-service upgrades of system units.
Reliability
The main control modules, clock modules, and LAN switch modules on the MPUB work in 1:1
hot backup mode, thus improving system reliability.
The two MPUBs work in 1:1 backup mode. Each MPUB monitors the status of the other. If the
master MPUB is faulty, the slave MPUB automatically takes over as the master MPUB.

2.9.2 MPUB

This section describes the appearance, panel, and interfaces of the MPUB.
Appearance
The MPUB is used by the E8000E-X16.
Figure 2-18
Issue 01 (2012-11-07)
Route calculation: All routing protocol packets are sent by the forwarding engine to the
MPUB for processing. In addition, the MPUB broadcasts and filters packets, and downloads
routing policies from the policy server.
Outband communication between boards: The LAN switch modules integrated on the
MPUB provide outband communications between boards. In this manner, messages can be
controlled, maintained, and exchanged between SFUs and LPUs.
Device management and maintenance: Devices can be managed and maintained through
the management interfaces (serial interfaces) provided by the MPUB.
Data configuration: The MPUB stores configuration data, startup files, charging
information, upgrade software, and system logs.
Data storage: The MPUB provides two interfaces for CF cards, which serve as mass storage
devices to store data files.
shows the appearance of the MPUB.
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2 E8000E-X16 Chassis Overview
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