Glossary

SNMP agent The software component that is responsible for the launcher object and responds to queries, carries out
requests and issues traps.
SNMP manager A system that controls and monitors the activities of network hosts using SNMP.
SNMP trap A message sent by an SNMP Agent to the SNMP manager indicating that an event has occurred on the
host running the network resource.
Software Defined
Networking
(SDN)
An architecture that decouples the software (control plane) from the hardware (data plane). A
centralized SDN controller handles the control plane traffic and hardware configuration for data plane
flows.
Spanned VLAN A VLAN that is configured on all the VLT peer nodes.
SSH A protocol for securely exchanging data between two devices over an untrusted network. In OS10,
the secure shell server allows an SSH client to access an OS10 switch through a secure, encrypted
connection. The SSH server authenticates remote clients using RADIUS challenge or response, a trusted
host file, locally stored passwords, and public keys.
Stateless
autoconfiguratio
n
A method for assigning an IPv6 address to an interface. Stateless auto-configuration generates a unique
link-local IPv6 address with a FE80::/64 prefix and an interface ID generated from the MAC address.
Static routing A process where the router uses a manually-configured routing entry, rather than information from a
dynamic routing traffic.
Subscription
profile
Data collector destinations and stream attributes that are associated with sensor paths. A subscription
ties sensor paths and a destination group with a transport protocol, encoding format, and streaming
interval. The telemetry agent in the switch attempts to establish a session with each collector in the
subscription profile, and streams data to the collector. If a collector is not reachable, the telemetry agent
continuously tries to establish the connection at one-minute intervals.
Switch-scoped
VLAN
A VLAN that is mapped to a virtual network ID (VNID) in OS10. All member ports of the VLAN are
automatically added to the virtual network.
System banners A messaging mechanism that provides information to configure a system login and message of the day
(MOTD) text banners.
System clock A clock in a system that helps to maintain the correct time.
T
Telnet
A protocol that provides information to set up Telnet TCP/IP connections on the switch.
Transmission
Control Protocol
(TCP)
A communication protocol that helps exchange messages between computing devices in a network.
U
Unified
Forwarding Table
(UFT)
A table that consolidates the resources of several search tables (L2, L3 Hosts, and L3 Route [Longest
Prefix Match - LPM]) into a single flexible resource.
Uplink Failure
Detection (UFD)
A network path that indicates the loss of upstream connectivity to servers connected to the switch.
User Datagram
Protocol (UDP)
A communications protocol that helps exchange messages between computing devices in a network. It is
a core member of the Internet Protocol suite and is a "stateless" protocol.
User Session
Management
A protocol that provides information to manage the active user sessions.
Glossary of Terms 13