Cisco XR 12406 - Manual (Page 27)

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Cisco XR 12406 Router Installation Guide
OL-13831-01
Chapter 1 Cisco XR 12406 Router Overview
Physical and Functional Description
Status LEDs (Slot-0 / Slot-1) indicate when the flash memory card in that slot is
accessed (see
Figure 1-4 ). Each slot has an eject button (located behind the cover)
to remove a flash card from the slot.
Note PRP-3 does not have PCMCIA slots (slot 0 and slot 1). PRP-3 has an external
CompactFlash (disk0:) that replaces the PCMCIA slots.
PRP Ethernet Ports and Status LEDs
The PRP has two 8-pin media-dependent interface (MDI) RJ-45 ports for either
IEEE 802.3 10BASE-T (10 Mbps) or IEEE 802.3u 100BASE-TX (100 Mbps)
Ethernet connections. These ports are labeled ETH 0 and ETH 1.
The transmission speed of the Ethernet port is not user-configurable. You set the
speed through an autosensing scheme on the PRP which is determined by the
network that the Ethernet port is connected to. However, even at an autosensed
data transmission rate of 100 Mbps, the Ethernet port can only provide a usable
bandwidth of substantially less than 100 Mbps. You can expect a maximum usable
bandwidth of approximately 20 Mbps when using an Ethernet connection.
The following LEDs on the front panel indicate traffic status and port selection
(
Figure 1-6 ):
• LINK, EN, TX, RX—Indicate link activity (LINK), port enabled (EN), data
transmission (TX), and data reception (RX).
• PRIMARY—Indicates which Ethernet port is selected (ETH 0 or ETH 1).
Note Because both ports are supported on the PRP, ETH 0 is always on. ETH 1
lights when it is selected.