Cisco 7200 VXR Series, Installation And Configuration Manual

Page: 44 / 192

The NPE-300 contains two banks of SDRAM. Both SDRAM banks are used for all packet memory
requirements; however, bank 0 is used exclusively for packet memory and is set at a fixed configuration
in the factory.
Bank 1 contains two user-configurable SDRAM slots, DIMM slot 2 and DIMM slot 3 (see Figure 1-9 ).
Both slots in bank 1 can be populated by DIMMs of different sizes; however, the size of the DIMM in
slot 2 must be greater than or equal to the size of the DIMM in slot 3, and the size of the DIMM in slot 3
can be zero.
Secondary
cache 256 KB — RM7000 processor, internal,
unified instruction and data cache U49
Tertiary cache 2 MB (fixed) — RM7000 processor, external cache U7, U8,
U9, U10,
U17
1. Location on processing engine board. See Figure 1-9 .
2. Bank 0 is used exclusively for packet memory and is not user configurable.
3. Bank 1 contains the Cisco IOS software, processor memory, and packet memory.
4. OTP = one-time programmable
1. There are two user-upgradable SDRAM slots in bank 1. (Bank 0 is used exclusively for packet memory and is set at a fixed
configuration in the factory.)
2
2. These products are also available as SDRAM upgrades. To order an upgrade, add an equal sign (=) after the product number,
for example, MEM-SD-NPE-128MB=.
32
3
MB + 32 MB
3. This 32 MB is fixed memory in SDRAM bank 0, socket U16. Socket U15 is never populated.
U45 (DIMM slot 2
only) 1 32-MB DIMM MEM-SD-NPE-32MB=
32
3
MB + 64 MB U45 and U44
or 2 32-MB DIMMs
or MEM-SD-NPE-32MB=
U45 1 64-MB DIMM MEM-SD-NPE-64MB=
32
3
MB + 128 MB U45 and U44
or 2 64-MB DIMMs
or MEM-SD-NPE-64MB=
U45 1 128-MB DIMM MEM-SD-NPE-128MB=
32
3
MB + 256 MB U45 and U44 2 128-MB DIMMs MEM-SD-NPE-128MB=