GL-1
Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Software Configuration Guide
OL-14127-08
GLOSSARY
A
ARPA
Advanced Research Projects Agency of the U.S. Department of Defense. ARPA funded research and
experimentation with ARPANET, the predecessor to the Internet.
ATM
Asynchronous Transfer Mode
B
blank filler plate
An empty panel used to fill vacant subslots on a SIP. For proper operation, a SIP should be fully
installed with either functional SPAs or blank filler plates.
F
FPD
field-programmable device. General term for any hardware component implemented on router cards
that supports separate software upgrades. SIPs and SPAs must have the correct FPD version to function
properly; an FPD incompatibility will disable all interfaces on the SPA or all SPAs within the SIP.
FPD image package
A software file used to upgrade FPD images. Whenever a Cisco IOS image is released that supports
SPAs, a companion SPA FPD image package is also released for that Cisco IOS software release.
L
LAN
local-area network. High-speed, low-error data network covering a relatively small geographic area (up
to a few thousand meters). LANs connect workstations, peripherals, terminals, and other devices in a
single building or other geographically limited area. LAN standards specify cabling and signaling at
the physical and data link layers of the OSI model. Ethernet, FDDI, and Token Ring are widely used
LAN technologies.