Mpls L2Vpn Connection Establishment - HP 10500 Series Configuration Manual

Figure 59 Remote connection model

MPLS L2VPN connection establishment

To set up an MPLS L2VPN connection:
Set up a public tunnel to carry one or more PWs between PEs:
1.
The public tunnel can be an LSP, MPLS TE, or GRE tunnel.
If multiple public tunnels exist between two PEs, you can configure a tunnel policy to control tunnel
selection. For more information about tunnel policies, see
If a PW is established over an LSP or MPLS TE tunnel, packets on the PW have two labels. The outer
label is the public LSP or MPLS TE tunnel label that MPLS uses to forward the packet to the peer PE.
The inner label is the PW label that the peer PE uses to forward the packet to the destination CE.
Set up a PW to connect customer networks:
2.
A PW can be established statically or dynamically through LDP.
To establish a static PW, configure the incoming and outgoing PW labels for the PW on the two
PEs. Static PWs consume a small amount of resources but have complex configurations.
To establish a dynamic PW, configure LDP on the two PEs. LDP defines a new FEC type named PW
ID FEC for PEs to exchange PW-label bindings. The new FEC type uses a PW ID and a PW type
to identify a PW. The PW ID is the ID of the PW between PEs. The PW type specifies the
encapsulation type for data transmitted over the PW, such as ATM, FR, Ethernet, or VLAN. PEs
advertise the PW label and PW ID FEC in label mapping messages to create a PW. Dynamic PWs
have simple configurations but consume more resources than static PWs.
Set up an AC between a PE and a CE:
3.
Set up an AC by configuring a link layer connection (such as a PPP connection) between a PE and
a CE.
An AC is a service instance on a Layer 2 Ethernet interface, which forwards packets that are
received on the Layer 2 Ethernet interface and meet the match criteria of the service instance to the
bound PW. If the match criterion is VLAN ID, the VLAN is unique on a per interface basis rather
than on a global basis.
Bind the AC to the PW:
4.
Bind the service instance to the PW, so the PE forwards packets between the AC and the PW.
"Configuring tunnel
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policies."