10-Gigabit Ethernet Xenpak Plim - Cisco CRS-1 System Description

10-Gigabit Ethernet XENPAK PLIM

Figure 39: OC-48 POS PLIM Front Panel View
DPT MODE LED
1
2 POS MODE LED
3 ACTIVE/FAILURE LEDS
4 CARRIER LED
5 RX PKT LED
Each OC-48 PLIM has the following components:
• A STATUS LED: Indicates that the card is properly seated and operating OK.
• 16 ports with SFP optic modules for each port.
• Eight DPT MODE or POS MODE LEDs: One of these DPT MODE or POS MODE LEDs is for each
pair of ports, 0 and 1, 2 and 3, 4 and 5, 6 and 7, 8 and 9, 10 and 11, 12 and 13, and 14 and 15. The DPT
mode is always configured on pairs of ports. The LED is lit when a pair of ports are configured in the
DPT mode. At this time, the 16xOC-48 PLIM operates only in the POS mode.
• Five green LEDs for each port:
• Each 16xOC-48 PLIM power consumption—136 W
10-Gigabit Ethernet XENPAK PLIM
The 8-port 10-Gigabit Ethernet (GE) XENPAK PLIM provides from one to eight 10-GE interfaces. The PLIM
supports from one to eight pluggable XENPAK optic modules that provide the 10-GE interfaces for the card.
The PLIM performs Layer 1 and Layer 2 processing for up to eight 10-GE data streams by removing and
adding the proper header information as data packets enter and exit the PLIM.
Although the PLIM can terminate up to 80 Gbps of traffic, the MSC forwards traffic at 40 Gbps. Therefore,
the PLIM provides 40 Gbps of throughput, which it passes to the MSC as two 20-Gbps data packet streams:
• Ports 0 to 3 (the upper set of ports) provide 20 Gbps of throughput.
• Ports 4 to 7 (the lower set of ports) provide another 20 Gbps of throughput.
Cisco CRS Carrier Routing System 8-Slot Line Card Chassis Enhanced Router System Description
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WRAP LED
6
7 PASS THRU LED
8 One of sixteen slots for SFPs numbered from 0 through 15 left to right
9 Five LEDs per port
10 Status LED
• ACTIVE/FAILURE: Indicates that the port is logically active; the laser is on.
• CARRIER: Indicates that the receive port (RX) is receiving a carrier signal.
• RX PKT: Blinks every time a packet is received.
• WRAP: Indicates that the port is in DPT wrapped mode.
• PASS THRU: Indicates that the port is operating in the POS mode (DPT pass through).
Line Cards and Physical Layer Interface Modules Overview