Cisco 12000 Series Replacement Instructions

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Cisco 12000 Series Router Memory Replacement Instructions
78-4338-16
GRP, PRP, and Line Card Memory Overview
Table 4 lists the available route memory configurations and associated product numbers of DRAM
DIMMs for upgrading route memory on the Cisco 12000 Series Router line cards.
Line Card Packet Memory
Line card packet memory temporarily stores data packets awaiting switching decisions by the line card
processor. Once the line card processor makes the switching decisions, the packets are propagated into
the router’s switch fabric for transmission to the appropriate line card.
• Engine 0 and Engine 1 line cards (see Figure 3) include four SDRAM DIMM sockets for packet
memory, paired as follows:
– Receive (RX) buffer—Two SDRAM DIMM sockets labeled RX DIMM0 and RX DIMM1
– Transmit (TX) buffer—Two SDRAM DIMM sockets labeled TX DIMM0 and TX DIMM1
• Engine 2 line cards (see Figure 4) include four SDRAM DIMM sockets for packet memory, paired
as follows:
– Transmit (TX) buffer—Two SDRAM DIMM sockets labeled TX DIMM0 and TX DIMM1
– Receive (RX) buffer—Two SDRAM DIMM sockets labeled RX DIMM0 and RX DIMM1
• ISE line cards (see Figure 5) include four SODIMM sockets for packet memory. This memory is not
field serviceable.
• Engine 4 and Engine 4+ line cards (see Figure 6) include two DDR DIMM sockets for packet
memory. This memory is not field serviceable.
Table 4 Route Memory Configurations for Cisco 12000 Series Line Cards
Total Route Memory
Ordered Cisco Product Number DIMM Module
Route Memory
DIMM Sockets Engine
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 E0, E1, E2
128 MB MEM-DFT-GRP/LC-128
2
2. Standard (default) DRAM DIMM configuration for the processor on E0, E1, or E2 line cards is 128 MB.
1 128-MB DIMM DIMM0 or DIMM1 E0, E1, E2
128 MB MEM-GRP/LC-128=
3
3. This option allows the customer to order a spare module or add a second 128-MB DIMM for a total of 256 MB for line cards that are already equipped
with one 128 MB DIMM.
1 128-MB DIMM DIMM0 or DIMM1 E0, E1, E2
256 MB MEM-GRP/LC-256= 2 128-MB DIMMs DIMM0 and DIMM1 E0, E1, E2
256 MB N/A - Default Config. 1 256-MB SODIMM
4
4. A 144-pin SODIMM module is used.
J15–OC-192
J12–Quad OC-48
E4, E4+
256 MB MEM-LC-ISE-256= 2 128-MB SODIMM DIMM0 and DIMM1 E3 (ISE only)
512 MB MEM-LC-ISE-512=
5
5. The default memory on ISE line cards is 512-MB. This is provided as either 2 256-MB SODIMMs or 1 512-MB SODIMM.
2 256-MB SODIMM DIMM0 and DIMM1 E3 (ISE only)
512 MB MEM-LC-ISE-512A= 1 512-MB SODIMM DIMM0
6
6. The spare 512-MB SODIMM in the ATM ISE line cards can only be installed in SODIMM1. The memory in SODIMM0 is not user replaceable.
E3 (ISE only)
1 GB MEM-LC-ISE-1G= 2 512-MB SODIMM DIMM0 and DIMM1 E3 (ISE only)

Cisco 12000 Series Specifications

General

Brand	Cisco
Model	12000 Series
Category	Network Router
Language	English