H3C Technologies H3C Intelligent Management Center - Manual (Page 270)

customized
group
With this function, you can divide VPNs into manageable groups as needed.
CPE-based Customer premises equipment-based.
export RT Export RT defines which sites can receive VPN-IPv4 routes. A local PE sets this
type of VPN target attribute for VPN-IPv4 routes learned from directly
connected sites before advertising them to other PEs. See RT.
FEC Forwarding Equivalence Class. A technique used for controlling errors in data
transmission over unreliable or noisy communication channels. See RT.
full-mesh
network
A full mesh network has a fully connected mesh topology. For a VPLS VPN
network, it means that every PE on the network has a direct connection to
every other PE on the network, logically.
full-mesh In this networking scheme, each site contains a group of RT attributes with
values of Import RT and Export RT being the same, and all sites are hub sites.
H-VPLS network In an H-VPLS network, all NPE devices are fully meshed logically, and a UPE
device establishes a virtual connection with only the nearest NPE device.
HoPE Hierarchy of PE. MPLS VPN Management includes three types of HoPEs: SPE,
MPE, and UPE, with no limit on the number of levels. A one-level PE is called
a general PE, a two-level HoPE includes SPE and UPE. If there is a three-level
HoPE or a HoPE with more than three levels, the lowest level is UPE, the highest
is SPE, and the PEs in the middle are MPEs.
hub-spoke In this networking scheme, the site in the center is called the hub site, which
knows routes to all the other sites in the same VPN. The sites that are not in the
center are called spoke sites, from which traffic reaches the destination
through the hub site. This type of networking scheme is called Hub-Spoke
networking.
import RT Import RT defines from which sites a PE can receive routes. A PE checks the
Export RT of VPN-IPv4 routes advertised by other PEs. If the Export RT matches
the Import RT of the VPN instance, the PE adds the routes to the VPN routing
table.
IPX Internet packet exchange.
IS-IS Intermediate System to Intermediate System. A routing protocol designed to
move information efficiently within a network.
L2VPN Layer 2 virtual private network, provides a private network service among a
set of customer sites using a service provider's existing MPLS and IP network.
A customer's data is separated from other data using software rather than
hardware. In a Layer 2 VPN, the Layer 3 routing of customer traffic occurs
within the customer's network.
LDP Label Distribution Protocol. An MPLS signaling protocol, which is in charge of
classifying FECs, distributing labels, and establishing and maintaining LSPs.
LDP session LDP sessions are established between LSRs based on TCP connections and are
used to exchange messages for label binding, label releasing, and error
notification.
LER Label Edge Router. A router that operates at the edge of a Multiprotocol Label
Switching network.
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