1-14 Introduction
Hitachi Compute Rack 220H CRU Replacement Guide
• LAN mezzanine (CN7M1S-Y/ CN7M1S-R): 10GBASE-T SFP+
Figure 1-11: LAN mezzanine (CN7M1S-Y/ CN7M1S-R) status LED
Table 1-12: LAN mezzanine (CN7M1S-Y/ CN7M1S-R) status LED indicate
Location Name State Description
1 Link LED
Green-On
A 10GBASE-T link with a hub has been
established.
Amber-On*
A 1000BASE-T link with a hub has been
established.
Off
A link with a hub has not been established or
device driver has not been loaded.
2 Activity LED
Green-On
A link with a hub has been established.
Green-Blink
Data is being transmitted or received.
Off
A link with a hub has not been established or
device driver has not been loaded.
• Onboard LAN controllers of the optional LAN mezzanine displayed
by the device manager are as follows:
– LAN controller 1: PCI bus 6, device 0, function 0
– LAN controller 2: PCI bus 6, device 0, function 1
• The number of the network adapter which is the network interface
connector recognized by the device manager may not match to the
network interface connector number.
• LAN mezzanine (CN7M1T-Y/CN7M1T-R) interfaces support link
speed is 10 Gbps and 1 Gbps (10GBASE-T and 1000BASE-T). If the
links speed of the LAN mezzanine (CN7M1T-Y/CN7M1T-R) is 100
Mbps or 10 Mbps (100BASE-TX or 10BASE-T link established, the
Link LED is lights solid amber), you need to reconfigure the network
connected to the LAN mezzanine interface. In this case, the Link
LED is lights solid amber as well as if the link speed is established
with 1000 Mbps (1000BASE-T). Be careful because you cannot
discriminate a linking speed (10 Mbps, 100 Mbps or 1000 Mbps) by
lighting status the Link LED.
• LAN mezzanine (CN7M1S-Y/CN7M1S-R) interfaces support link
speed is only 10 Gbps (10GBASE-SR). If the links speed of the LAN
mezzanine interface is 1000 Mbps (1000BASE-SX link established,
the Link LED is lights solid amber), you need to reconfigure the
network connected to the LAN mezzanine interface.
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