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Cisco XR 12000 Series Router Ethernet Line Card Installation
OL-7861-01
Line Card Memory
Engine 4 Line Card Memory Locations
Figure 47 shows the DIMM socket locations on an Engine 4 line card. These line cards are equipped with
five DIMM sockets:
• One route memory small-outline DIMM (SODIMM) socket
• Two pairs of packet memory DIMM sockets (not user serviceable)
The route memory module is installed to a 144-pin SODIMM socket. Route memory runs the Cisco IOS
software image and stores the updated network routing tables downloaded from the route processor.
Figure 47 Engine 4 Line Card Memory Locations
Ethernet Line Card Route Memory Options
Route memory runs the Cisco IOS software image and stores updated network routing tables
downloaded from the route processor (RP). Line card route memory ranges from 128 MB to 256 MB.
Table 21 lists the available route memory configurations and associated product numbers of the memory
modules used for upgrading route memory on Ethernet line cards.
1 Route memory SODIMM 2 Packet memory DIMMs (not user serviceable)
CLASS 1 LASER PRODUCT
LASERPRODUKT DER KLASSE 1
PRODUIT LASER DE CLASSE 1
PRODUCTO LASER DE CLASSE 1
TX RX
MATE
ACTIVE
CARRIER
RX PKT
SYNC
PASS THRU
WRAP
OC192/SRP-SR-SC
CLEAN
CONNECTOR
W
ITH
ALCO
HO
L
W
IPES BEFO
R
E
CO
NNEC
TING
93274
1
2
2
Table 21 Route Memory Configurations for Ethernet Line Cards
Total Route Memory Cisco Product Number DIMM Module Route Memory DIMM Sockets
64 MB MEM-GRP/LC-64=
1
1. This option adds a second 64-MB DIMM for a total of 128 MB for line cards that are equipped with 64 MB.
1 64-MB DIMM DIMM0 or DIMM1
128 MB MEM-DFT-GRP/LC-128 1 128-MB DIMM DIMM0 or DIMM1
128 MB MEM-GRP/LC-128= 1 128-MB DIMM DIMM0 or DIMM1
256 MB MEM-GRP/LC-256= 2 128-MB DIMMs DIMM0 and DIMM1
256 MB MEM-LC4-256=
2
2. This option is only compatible with the 4-Port Ethernet line cards and is for replacement only.
1 256-MB SODIMM Varies