Cisco ASR 5000 Series, Обзор продукта

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Glossary
Environmental Information ▀
Cisco ASR 5000 Series Product Overview ▄
OL-22938-02
Automatic home agent discovery. The process by which a mobile node can obtain the IP address of a home agent on
its home network, involving the transmission of a registration request to the subnet broadcast address of its home
network.
AVP . Attribute -Value Pair.It corresponds to an Information Element in an AAA message.
B
Base Station. An entity in the public radio telecommunications system used for bi-directional radio communications
with mobile stations or mobile nodes.
BGP. A routing protocol used in interdomain routing in large networks to maintain integrity of the network. It allows
the routers to exchange only pre-specified information with pre-specified routers in other domains.
BHSA. Busy Hour Session Attempts. A measure of dynamic sessions (traffic calls) that can be attempted in an average
Busy Hour.
BHSC. Busy Hour Session Completion. A measure of dynamic sessions (traffic calls) that can be completed in an
average Busy Hour.
Binding. The triplet of numbers that contains the mobile node's home address, its care-of address, and the registration
lifetime-how long the mobility agents may use the binding. Binding, within the system, creates the association of a
virtual interface to a physical port on the system. This process allows the flow of traffic from the context through the
physical port that the interface is associated with.
Binding Information. The binding information associates a PDP context to the IP flows of a media. The binding
information is generated by the P-CSCF and sent to UE during the IMS session establishment. system receives the
binding information from the UE during PDP context activation or modification. The binding information consists of a
single authorization token and one or more flow identifiers for the IMS session.
Binding Mechanism. This mechanism is used to associate a PDP context bearer with the IP flow(s) of an IMS session
in the PDF.
Binding update. The message that supplies a new binding to an entity that needs to know the new care-of address for a
mobile node. The binding update contains the mobile node's home address, new care-of address, and a new registration
lifetime.
BSC. Base Station Controller. A significant device within the 2G/2.5G RAN, the BSC allocates channels and manages
BTS handoff. In 2G wireless, the BSC's upstream interfaces (to the MSC) are always TDM. In 2.5G, a BSC supports
both TDM and packet upstream interfaces. In 3G, a BSC can support any combination of TDM and packet, TDM only,
or packet only interfaces.
BSS. Base Station Subsystem. The 2G/2.5G Radio Access Network (RAN) technology responsible for connecting the
mobile User Equipment (UE) with the Core Network (CN) in a GPRS/UMTS wireless network. The BSS incorporates
the BTS, the BSC, and the PCU.
BTS. Base Transceiver Station. A component of the base station, it includes the transmitting and receiving radio
equipment. A BTS is sometimes equated with the physical cell site of a wireless network.
Busy Hour. An uninterrupted 60-minute period during which the average volume of traffic is at its maximum.
C
Cached EPS security context . a cached security context to be used in EPS.
Camped on a cell . The MS (ME if there is no SIM) has completed the cell selection/reselection process and has chosen
a cell from which it plans to receive all available services. Note that the services may be limited, and that the PLMN
may not be aware of the existence of the MS (ME) within the chosen cell.
Care-of address. An IP address at the mobile node's current point of attachment to the Internet, when the mobile node
is not attached to the home network. A collocated care-of address is a care-of address assigned to one of the mobile
node's network interfaces, instead of one being offered by a foreign agent.
CLCI Client. DCCA client located in GGSN.