Cisco 10720 Configuration Guide - Page 90
Port Type, Activity, Description, Gigabit Ethernet, ERROR R/LINK G, ACTIVE, Fast Ethernet, 100BASE-TX
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Verifying the Cisco 10720 Internet Router LEDs Chapter 3 Installing the Cisco 10720 Internet Router Table 3-10 Access Card Status LEDs Port Type Gigabit Ethernet LED ERROR (R)/LINK (G) Fast Ethernet 10/100BASE-TX ACTIVE ERROR (R)/LINK ACTIVE (G) 100 MBPS Activity Description Red Error detected on this port. It is turned on at reset and turned off during hardware initialization. Solid Green A link is established on this port. Off No link detected on this port. Blinking Green Packets are being received or transmitted on this port. Off The port is not active. Red Error detected on this port. It is turned on at reset and turned off during hardware initialization. Solid green A link is established on this port, but no activity is detected. Blinking green Packets are being received or transmitted on this port. Off No link detected on this port. Amber This port is set at 100 MB/s. This LED reflects the status of the Ethernet PHY chip. Even after the link is removed, it will remain in the previous state. Off Port is set at 10 MB/s. 3-40 Cisco 10720 Internet Router Installation and Configuration Guide 78-13062-10