Preface
Related Documentation
•DTE—data terminal equipment
•EPROM—erasable programmable read-only memory
•EEPROM—electrically erasable programmable read-only memory
•GB—gigabit
•GBIC—Gigabit Interface Converter
•Gbps—gigabits per second
•MB—megabyte
•Mbps—megabits per second
•NVRAM—nonvolatile random-access memory
•OIR—online insertion and removal
•PCI—Peripheral Component Interconnect
•PXF—Parallel eXpress Forwarding—A secondary processor used to accelerate Cisco IOS services
•RFI—radio frequency interference
•RISC—reduced instruction set computing
•ROM—read-only memory
•SDRAM—synchronous dynamic random-access memory
•SDRAM-fixed—SDRAM of a fixed size or quantity; can be replaced, but not upgraded
•SIMM—single in-line memory module
•SNMP—Simple Network Management Protocol
•SRAM—static random-access memory
•TFTP—Trivial File Transfer Protocol
•VAM—Virtual Private Network (VPN) Acceleration Module (VAM)
•Cache—Memory with fast access and small capacity used to temporarily store recently accessed data; found either incorporated into the processor or near it.
•Primary, secondary, tertiary cache—Hierarchical cache memory storage based on the proximity of the cache to the core of the processor. Primary cache is closest to the processor core and has the fastest access. Secondary cache has slower access than primary cache, but faster access than tertiary cache.
•Instruction and data cache—Instructions to the processor and data on which the instructions work.
•Unified cache—Instruction cache and data cache are combined. For example, a processor may have primary cache with separate instruction and data cache memory, but unified secondary cache.
•Integrated cache—Cache that is built into the processor; sometimes referred to as internal cache. Cache memory that is physically located outside the processor is not integrated, and is sometimes referred to as external cache.
Related Documentation
Your router and the Cisco IOS software running on it contain extensive features and functionality, which are documented in the following resources:
Integrated Services Adapter and Integrated Services Module Installation and Configuration
