Router Memory; Types Of Memory - Cisco 1751V Hardware Installation Manual

Chapter 1 Cisco 1751 Router Overview
Table 1-4 Front-Panel LEDs (continued)
LED Color
SLOT2
Ø Green
1 Green

Router Memory

Types of Memory

78-11258-04
Cards Supported
VIC-2E&M
VIC-2FXO
VIC-2FXS
VIC-2BRI-NT/TE
VIC-2E&M
VIC-2FXO
VIC-2FXS
VIC-2BRI-NT/TE
This section describes the types of memory stored in the router and how to find
out how much of each the router has.
For instructions on how to upgrade memory in the router, refer to the
and Upgrading Memory and Packet Voice Data Modules"
The router has the following types of memory:
Dynamic RAM (DRAM)—This is the main storage memory for the router.
•
DRAM is also called working storage and contains the dynamic configuration
information. The router stores a working copy of Cisco IOS software,
dynamic configuration information, and routing table information in DRAM.
The Cisco 1751 router ships with 32 MB of DRAM.
Nonvolatile RAM (NVRAM)—This type of memory contains the startup
•
configuration.
LED Meaning
Blinks when data is being sent to or received from
the port.
Blinks when data is being sent to or received from
the port.
Cisco 1751 Router Hardware Installation Guide
Router Memory
"Installing
appendix in this guide.
1-9