Single Height - Cisco ASR 1000 Series Software Configuration Manual

Glossary
MAC
MAC
media access control. Lower of the two sublayers of the data link layer defined by the IEEE. The MAC sublayer handles access to
shared media.
MIB
Management Information Base. Database of network management information that is used and maintained by a network management
protocol such as SNMP or CMIP. The value of a MIB object can be changed or retrieved using SNMP or CMIP commands, usually
through a GUI network management system. MIB objects are organized in a tree structure that includes public (standard) and private
(proprietary) branches.
OIR
online insertion and removal. Feature supported by SIPs and SPAs allowing removal of the cards while the router and the cards are
activated, without affecting the operation of other cards or the router. Although this removal can be done while the SIP or SPA is
activated, it is generally recommended that you gracefully deactivate the hardware using the appropriate commands for your platform
prior to removal of the hardware.
PPP
Point-to-Point Protocol. A link-layer encapsulation method for dialup or dedicated circuits.
QoS
quality of service. Measure of performance for a transmission system that reflects its transmission quality and service availability.
SFP
small form-factor pluggable optical transceiver. A type of fiber optic receptacle device that mounts flush with the front panel to
provide network connectivity.

single height

Describes the dimension of a SPA that occupies a single SIP subslot, or half of the SIP.
SIP
SPA interface processor. A SIP is a platform-specific carrier card that inserts into a router slot like a line card. A SIP can hold one
or more SPAs in its subslots, depending on the SIP type. The SPA provides the network interface. The SIP provides the connection
between the Route Processor (RP) and the SPA.
Cisco ASR 1000 Series Aggregation Services Routers SIP and SPA Software Configuration Guide, Cisco IOS
XE Everest 16.5
548 OL-14127-17