Cisco Systems ASR 1000 Series manual GL-3

Glossary

DHCP

Diagnostic mode

DTE

DUART

Dynamic Host Configuration Protocol

A command mode in Cisco IOS XE where all the commands stored in the non-RPIOS sub-package are still accessible. All commands available in diagnostic mode are also available in privileged EXEC mode.

Date Terminal equipment. Auxiliary ports of a UART.

Dual Asynchronous Receiver/Transmitter. Used for the CONsole serial port.

E

ESI	Enhanced SerDes Interconnect—Four serial links, each at 1.25-3.125Gbps, 24b/26b. These are the
	datapath links on the midplane connecting the RP, SIPs, and standby ESP modules to the active ESP.
EBFC	Event-based flow control – packet-based protocol over SPA-SPI interface used by newer high-channel
	count, variable rate SPA’s such as ATM to pass egress queue status deltas to the host.
EFC	Extended flow control – calendar-based interface used by high-channel count SPA’s to pass egress
	queue status to the host.
EMIX	Typical traffic pattern including voice for a typical enterprise environment with a mix of packet sizes
	and with an average packet size of 250 bytes.
EOBC	Ethernet Out of Band Channel—Used for communication between the control processors on the Cisco
	ASR1000 chassis
ESP	Cisco ASR 1000 Series Embedded Services Processor. The ESP handles forwarding plane traffic and
	performs packet processing functions such as Firewall inspection, ACLs, encryption and QoS. Note
	that the Cisco ASR1000-ESP is also referred to as the ''forwarding processor'' in the document.
ESPBase	ASR1000rp1-espbase.pkg. Provides the ESP operating system and control processes, and the ESP
	software.
ESS	This is the QFP client that provides a framework for mapping edge switching services feature data from
	the control plane into QFP data plane data structures.
EV-FC	Event-based flow control - interface used for chip-to-chip communication of the status of egress
	queues, used on the embedded services processor

F

FECP		Forwarding engine control processor. A general purpose CPU on the forwarding processor primarily
		responsible for managing the forwarding engine and its connection to I/O.
FH		Full height shared port adapter
FIB		Cisco Forwarding Information Base
Field-replaceable		Cisco component can be returned if damaged
		Cisco ASR 1000 Series Aggregation Services Routers Hardware Installation and Initial Configuration Guide
	OL-13208-03		GL-3