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DHCP Server
DHCP Server is used to allocate network addresses and deliver configuration parameters to dynamically
configured hosts called DHCP client.
DHCP Snooping
DHCP Snooping is used to block intruder on the untrusted ports of the switch device when it tries to intervene
by injecting a bogus DHCP reply packet to a legitimate conversation between the DHCP client and server.
DNS
DNS is an acronym for Domain Name System. It stores and associates many types of information with
domain names. Most importantly, DNS translates human-friendly domain names and computer hostnames
into computer-friendly IP addresses. For example, the domain name www.example.com might translate to
192.168.0.1.
DoS
DoS is an acronym for Denial of Service. In a denial-of-service (DoS) attack, an attacker attempts to prevent
legitimate users from accessing information or services. By targeting at network sites or network connection,
an attacker may be able to prevent network users from accessing email, web sites, on-line accounts (banking,
etc.), or other services that rely on the affected computer.
Dotted Decimal Notation
Dotted Decimal Notation refers to a method of writing IP addresses using decimal numbers and dots as
separators between octets.
An IPv4 dotted decimal address has the form x.y.z.w, where x, y, z, and w are decimal numbers between 0 and
255.
Drop Precedence Level
Every incoming frame is classified to a Drop Precedence Level (DP level), which is used throughout the device
for providing congestion control guarantees to the frame according to what was configured for that specific DP
level. A DP level of 0 (zero) corresponds to 'Committed' (Green) frames and a DP level of 1 corresponds to
Discard Eligible (Yellow) frames.
DSA
The Digital Signature Algorithm (DSA) is a Federal Information Processing Standard for digital signatures. It
was proposed by the National Institute of Standards and Technology (NIST) in August 1991 for use in their
Digital Signature Standard (DSS) and adopted as FIPS 186 in 1993. Four revisions to the initial specification
have been released: FIPS 186-1 in 1996, FIPS 186-2 in 2000, FIPS 186-3 in 2009, and FIPS 186-4 in 2013.
DSCP
DSCP is an acronym for Differentiated Services Code Point. It is a field in the header of IP packets for packet
classification purposes.
RocketLinx MP1204-XT User Guide: 2000644 Rev. A
Glossary - 389
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