HP Intelligent Management Center Licenses User Manual

Page 139

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RSVP-TE

RSVP Traffic Engineering extension protocol. RSVP-TE is an extension to the RSVP. It supports
MPLS label distribution and allow resource reservation information to be transmitted with label
bindings. It can be used as a signaling protocol for LSP tunnel setup in MPLS TE.

SA

Service Access, equals to a PE-CE link, indicating an access from a CE in the VPN.

SC

Service Community, basic element in constructing a VPN, including Full-Mesh and Hub-Spoke
networking schemes. If multiple SCs exist in a common station, they can form a VPN together.

Service Topology

Logical structure of all VPN links in a VPN, including links between CEs and CEs, with CEs
including manageable CEs and non-managed CEs.

Site

A site is a group of IP systems with IP connectivity being implemented without relying on any
service provider network.

SPE

In an HoPE architecture, the device connecting the core device is called a superstratum PE (SPE)
or Service Provider-end PE.

Spoke

In Hub-Spoke networking scheme, the sites that do not reside on the core are called spoke sites.
Packets from these sites reach the destination through the hub node.

UPE

In an HoPE architecture, the device connecting the user network is called an underlayer PE (UPE)
or user-end PE.

UPE

User facing provider edge device that functions as the user access convergence device.

VLL

Virtual Leased Line, a point-to-point virtual leased line technology.

VMCE

A CE device connecting multiple PEs and CEs is called a VLAN isolation of MCE (VMCE).

VPLS

Virtual private LAN service.

VPN

Virtual Private Network. A VPN is a set of sites. VPN is used to set up private dedicated networks
over the public network.

VPN Link

A link for a user-end network to connect to an MPLS VPN network, that is, a PE-CE link. For a
network that has MCEs, it is an MCE-CE link.

VPN Networking
Schemes

In MPLS VPNs, RT attributes are used to control the advertisement and reception of VPN routes
between sites. They work independently and can be configured with multiple values to support
flexible VPN access control and implement multiple types of VPN networking schemes. VPN
networking schemes include Hub-Spoke and Full-Mesh based on VPN network types and include
VPN network with MCEs, with HoPEs and with dual-homed CEs based on device roles.

VRF

VPN Routing and Forwarding instance

VSI

Virtual switch instance that maps actual VPLS access links to virtual links.

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