Ethernet Over Mpls; Pw Redundancy - HP 10500 Series Configuration Manual

Ethernet over MPLS

Ethernet over MPLS is implemented as follows:
Bind a service instance on a Layer 2 Ethernet interface to a PW. Packets that are received from the Layer
2 Ethernet interface and meet the match criteria of the service instance are forwarded to the bound PW.
You can configure flexible match criteria for the service instance. For example, configure the service
instance to match all packets, tagged packets, or untagged packets. The default data encapsulation type
is VLAN.
Figure 60 Packet encapsulation

PW redundancy

PW redundancy provides redundant links between PEs so that the customer networks can communicate
when the path over one PW fails. As shown in
backup). The CEs communicate through the primary PW. When the primary PW fails, PE 1 brings up the
backup PW and forwards packets from CE 1 to CE 2 through the backup PW. When CE 2 receives the
packets, it updates its MAC address table, so that packets from CE 2 to CE 1 also travel through the
backup PW. Only static PWs and LDP PWs support PW redundancy.
Figure 61, PE 1 establishes two PWs (one primary and one
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