Chapter 7. DM4000 MPU192
7.1. Overview
The DM4000 MPU192 is a hot-swappable Switch Fabric module capable of handling 192Gbps of non-
blocking data (up to 96 Gigabit Ethernet ports). It is compatible with DM4004 and DM4008 chassis. In the
DM4004 chassis it can handle up to 24 Gigabit ports per interface module at a non blocking configuration.
In the DM4008 it can handle up to 12 Gigabit Ethernet ports per interface module board at a non-blocking
configuration.
The entire 192Gbps data is switched by the active MPU, while the standby MPU monitors the state of the
active MPU. In case of failure, the standby MPU assumes the switching of packets and generates a MPU
failure major alarm to the management system.
The DM4000 MPU192 can handle up to 142,857,149 packets per second supporting 9kB jumbo frames
and has an internal 1152kB Switching Memory reaching wire speed operation.
The DM4000 MPU192 has a 400MHz microprocessor with 256MB of RAM and 64MB of Flash.
Figure 7-1. MPU192 inside DM4004 Chassis
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