KTI Networks KGS-1064-HP, User Manual

Page: 223 / 240

-223-
CC
CC is an acronym for Continuity Check. It is a MEP functionality that is able to detect loss of
continuity in a network by transmitting CCM frames to a peer MEP.
CCM
CCM is an acronym for Continuity Check Message. It is a OAM frame transmitted from a
MEP to it's peer MEP and used to implement CC functionality.
CDP
CDP is an acronym for Cisco Discovery Protocol.
CIST
Within MSTP network, ISTs in different regions are interconnected through a common
spanning tree (CST). The collection of the ISTs in each MST region, and the common
spanning tree that interconnects the MST regions and single spanning trees are called the
common and internal spanning tree ( CIST ).
D
DDM
Modern optical SFP transceivers support digital diagnostics monitoring (DDM) functions
according to the industry-standard SFF-8472. This feature is also known as digital optical
monitoring (DOM). Modules with this capability give the end user the ability to monitor
parameters of the SFP, such as optical output power, optical input power, temperature, laser
bias current, and transceiver supply voltage, in real time.
DEI
DEI is an acronym for Drop Eligible Indicator. It is a 1-bit field in the VLAN tag.
DES
DES is an acronym for Data Encryption Standard. It provides a complete description of a
mathematical algorithm for encrypting (enciphering) and decrypting (deciphering) binary
coded information.
Encrypting data converts it to an unintelligible form called cipher. Decrypting cipher converts
the data back to its original form called plaintext. The algorithm described in this standard
specifies both enciphering and deciphering operations which are based on a binary number
called a key.
DHCP
DHCP is an acronym for Dynamic Host Configuration Protocol. It is a protocol used for
assigning dynamic IP addresses to devices on a network.
DHCP used by networked computers (clients) to obtain IP addresses and other parameters
such as the default gateway, subnet mask, and IP addresses of DNS servers from a DHCP
server.
The DHCP server ensures that all IP addresses are unique, for example, no IP address is