Glossary of Terms
802.1p: The IEEE standard that specifies QoS
802.1q: The IEEE standard that specifies VLANs
BPDU: Bridge Protocol Data unit
Broadcast: Communicating one-to-all
CA: Certificate Authority
CIDR: Classless inter-domain routing
CLI: command line interface
CoS: IEEE 802.1p Class of Service
CRC: Cyclic redundancy check
Default gateway: The node on the computer network that the network software uses when
an IP address does not match any other routes in the routing table.
DHCP: Dynamic Host Control Protocol
DiffServ: Differentiated Services – class based network traffic management
DNS: Domain Name System
DNS server: Resolves domain names and host names into IP addresses
FCS: Frame check sequence
Frame: A single unit of data received and transmitted by a switch
FTP: File Transfer Protocol
IGMP: Internet Group Management Protocol
IKE: Internet Key Exchange, a protocol in IPSec, results in a Security Association between
two devices that will communicate over IP
IKE policy: The parameters that will be allow communication between two devices
IP: Internet Protocol
IP address (IPv4): A 32 bit number assigned to each device on a network communicating
via IP version 4. Typically written in dotted-decimal notation, e.g.
192.168.0.1
IP address (IPv6): A 128 bit number assigned to each device on a network communicating
via IP version 6. Typically written in hexadecimal notation, e.g. fe80:0000
:0000:0000:2a0:1dff:fe51:f5da
IPSec: A group of protocols to provide security for IP communications, including
authentication and encryption at the packet level
IPv4: Internet Protocol version 4
IPv6: Internet Protocol version 6
Jabber: A frame greater than the Ethernet maximum 1518 bytes with a bad CRC. Jabber is
often cause by a failing NIC.
Stride Industrial Ethernet Switches User Manual 2nd Ed. Rev. B
Appendix B - Glossary
B-2
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