Enterasys Matrix 7GR4202-30 Hardware Installation Manual page 21

The DFE Modules
7KR4290-02
The 7KR4290‐02 DFE module has 2, 10‐Gbps Ethernet port slots on the front panel that can
support one or two 10‐Gbps XENPAK PHYs for high speed uplinks from the chassis DFE Ethernet
switch system. With two 10‐Gbps PHYs installed in the 7KR4290‐02, a shared uplink of up to
10 Gbps can be provided from the DFE switching system to two network edge connections from a
Matrix E7, Matrix N7, Matrix N5, Matrix N3, or Matrix N1 chassis to a core data center.
The DFE module ports can be configured to control traffic by limiting the rate of traffic accepted
into the module and prioritizing traffic to expedite the flow of higher priority traffic through the
module.
The 7KR4290‐02 DFE module can be installed in a Matrix E7, Matrix N7, Matrix N5, Matrix N3, or
Matrix N1 chassis, but only supports FTM2 data backplane interconnections in the Matrix E7
chassis.
XENPAK 10GBASE-LR, -ER, -LX4, and -SR PHY
S
The LAN XENPAK PHYs (physical interfaces) provide inexpensive, high‐speed Ethernet
connectivity. These PHYs provide network managers the ability to use 10‐Gigabit Ethernet
technologies to provide high‐speed, local backbone interconnections between large capacity
switches. As demand for bandwidth increases, network administrators can deploy 10‐Gigabit
Ethernet throughout the entire network to improve server farm, backbone, and campus‐wide
connectivity.
Matrix DFE-Diamond Series Installation Guide 1-3