Principle Hardware System - Zte ZXR10 8900 Product Description

The system uses a passive large-capacity high-speed backplane to connect the
main control board and all line cards to ensure adequate switching capacity for
system operation and to reserve enough bandwidth for future upgrade.
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Main control board
The main control board is an important integrated board with 1:1 redundancy. Each
main control board consists of one high-performance and large-capacity CPU, large
storage space, one inter-board communications switching module, one system
monitoring module, and one clock module. There is one large-capacity switching
matrix existing in 8912, 8908 and 8905 respectively. Two main control boards are
closely connected in operation.
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Service line card
After processing the messages, the service line card will send these messages to
the particular ports of the destination service line cards as per the processing
results. As each service line card has its own forwarding table to implement local
forwarding, the wire-speed switching capability can be guaranteed. There are many
types of service line card. According to current demands, the following service line
cards can be provided:
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4.2.2

Principle hardware system

ZXR10 8912/8908/8905 10G MPLS Switches are large-capacity rack-mounted 10G
Ethernet switches. Two-level hardware-based switching is implemented to realize wire-
speed switching of every level. Switching of the first level occurs between ports of line
cards. The second level of switching controlled by the main control board occurs
between line cards. As the first switching is very smart, all the ports make their
forwarding decisions at in this stage. The switching chip of this level is usually called
packet processor (PP). The second level switching is cross-connect matrix switch, which
connects all packet processors and performs switching according to simple labels,
constituting a large-capacity switching system.
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ZXR10 8900 Product Description
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