Glossary

Multiprotocol
BGP (MBGP)
An extension to BGP that supports multiple address families—IPv4 and IPv6. MBGP carries multiple sets
of unicast and multicast routes depending on the address family.
N
N_Port ID
Virtualization
(NPIV)
A process that allows multiple N_Port IDs to share a single physical N_Port.
Neighbor
Discovery
Protocol (NDP)
A protocol that determines if neighboring IPv6 devices are reachable and receives the IPv6 addresses of
IPv6 devices on local links.
Network fabric A fabric that consists of leaf and spine switches that are connected in a SmartFabric cluster.
Network
Management
System (NMS)
A set of one or more application that allows network administrators manage independent components of a
network inside a bigger network management framework.
Network port
(VxLAN)
A port on a VTEP switch that connects to the underlay network.
Network Time
Protocol (NTP)
A networking protocol for time synchronization between time servers and clients.
Network
Virtualization
Overlay (NVO)
An overlay network that extends L2 connectivity between server virtual machines (VMs) in a tenant
segment over an underlay L3 IP network.
NewServiceTag Service tag of a new IOM.
Node Port
(N_Port)
A port on a network node that acts as a host or storage device.
NPIV Proxy
Gateway (NPG)
A gateway that bridges FCoE and FC.
O
Object Tracking
Manager (OTM)
A mechanism that tracks the link status of L2 interfaces, and the reachability of IPv4 and IPv6 hosts.
OldServiceTag Service tag of the faulty IOM.
Open Network
Install
Environment
(ONIE)
A Linux-based operating system that boots on a switch and discovers the network operating system
installer images that are available on the network. ONIE provides the environment for the selected
network operating system to load on the switch.
Open Shortest
Path First
(OSPF)
A link-state routing protocol that communicates with all other devices in the same autonomous system
area using link-state advertisements (LSAs). OS10 supports up to 10,000 OSPF routes for OSPFv2 to
designate up to 8,000 routes as external, and up to 2,000 as inter/intra area routes.
OpenFlow A communication protocol in a software defined networking (SDN) environment that allows the SDN
Controller to interact with the forwarding plane of network devices such as switches and routers.
Orphan ports Ports that are not part of the VLT port channel but members of the spanned VLANs.
OSPF
Autonomous
systems
A collection of networks under a common administration that share a common routing strategy. OSPF
is an intra-AS, Interior Gateway Routing Protocol (IGRP) that receives routes from and sends routes to
other autonomous systems.
Outgoing
Interface (OIF)
The interface through which a multicast packet is sent out towards a multicast receiver.
10 Glossary of Terms