Cisco 1760 Hardware Installation Guide - Page 37

Router Memory, Types of Memory - memory upgrade

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Chapter 1 Cisco 1760 Router Overview Router Memory Table 1-5 WIC/VIC LEDs (continued) LED SLOT 3 OK 0 1 Color Green Green Green Cards Supported VIC-2E&M VIC-2FXO VIC-2FXS VIC-2BRI-NT/TE VIC-2DID VIC-2E&M VIC-2FXO VIC-2FXS VIC-2BRI-NT/TE VIC-2DID LED Meaning On when a VIC is correctly inserted in the card slot. Blinks when data is being sent to or received from port 0 in slot 3. Blinks when data is being sent to or received from port 1 in slot 3. Router Memory This section describes the types of memory stored in the router and tells how to find out how much of each type the router has. For instructions on how to upgrade memory in the router, See Appendix C, "Installing and Upgrading Memory and Packet Voice Data Modules," in this guide. Types of Memory 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. • Nonvolatile RAM (NVRAM)-This type of memory contains the startup configuration. 78-13342-03 Cisco 1760 Modular Access Router Hardware Installation Guide 1-9

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1-9
Cisco 1760 Modular Access Router Hardware Installation Guide
78-13342-03
Chapter 1
Cisco 1760 Router Overview
Router Memory
Router Memory
This section describes the types of memory stored in the router and tells how to
find out how much of each type the router has.
For instructions on how to upgrade memory in the router, See
Appendix C,
“Installing and Upgrading Memory and Packet Voice Data Modules,”
in this
guide.
Types of Memory
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.
•
Nonvolatile RAM (NVRAM)—This type of memory contains the startup
configuration.
SLOT 3 OK
Green
On when a VIC is correctly inserted in the card slot.
0
Green
VIC-2E&M
Blinks when data is being sent to or received from
port 0 in slot 3.
VIC-2FXO
VIC-2FXS
VIC-2BRI-NT/TE
VIC-2DID
1
Green
VIC-2E&M
Blinks when data is being sent to or received from
port 1 in slot 3.
VIC-2FXO
VIC-2FXS
VIC-2BRI-NT/TE
VIC-2DID
Table 1-5
WIC/VIC LEDs (continued)
LED
Color
Cards Supported
LED Meaning