Technical Manual
U-SYS MRS6100 Media Resource Server
Chapter 10 Reliability Design
Huawei Technologies Proprietary
10-1
Chapter 10 Reliability Design
10.1 Security
10.1.1 Network Security
Except the network services in use (such as SIP, MGCP and RTP/RTCP), MRS6100
closes the network services not in use, so as to prevent illegal users from intervening
the device operation through illegal entry.
The NMS of MRS6100 provides a strict user authentication function. Only the users
who pass the authentication and are granted with legal rights can perform normal
network management on MRS6100.
10.1.2 System Protection
The system can take the corresponding measures when an exception occurs,
including error prevention measures and voltage protection measures (too high or too
low voltage). The system adapts well to the environment (especially to the hot stress),
and it can take protection measures if it is powered off during loading.
The system provides multiple alarm processing mechanisms. It ensures the normal
system status and timely fault alarming through panel indicators and buzzers; on the
other hand, it generates an alarm to the operation and maintenance personnel using
the network management mode, so as to facilitate maintenance personnel to perform
operations and maintenance through console or the NM workstation.
The system has strong error tolerance ability, and it takes processing and recovery
measures when an exception occurs.
The system adopts the redundant inter-board communication design.
10.1.3 Data Security
The MRS6100 provides a strict data protection mechanism:
z
The configured boards are provided with strict real-time software backup function.
If the active board crashes, the standby one becomes active and the board
program and data on it take effect at once.
z
The database of the active processor is backed up to the Flash memory, so that
the active processor can obtain data from the Flash memory and restart rapidly.
z
The BAM initiates a CRC check of FAM data regularly. When the BAM detects
that the data between FAM and BAM are inconsistent, it automatically initiates
data setting to the FAM. If the data setting fails for several stipulated times, the
