7705 SAR Interfaces
86
Interface Configuration Guide
3HE 11011 AAAC TQZZA Edition: 01
3.2.8.4 802.3ah OAMPDU Tunneling and Termination for Epipe
Service
Customers who subscribe to Epipe service might have customer equipment running
802.3ah at both ends. The 7705 SAR can be configured to tunnel EFM OAMPDUs
received from a customer device to the other end through the existing network using
MPLS or GRE, or to terminate received OAMPDUs at a network or an access
Ethernet port.
While tunneling offers the ability to terminate and process the OAM messages at the
head-end, termination on the first access port at the cell site can be used to detect
immediate failures or can be used to detect port failures in a timelier manner. The
user can choose either tunneling or termination, but not both at the same time.
In Figure 6, scenario 1 shows the termination of received EFM OAMPDUs from a
customer device on an access port, while scenario 2 shows the same thing except
for a network port. Scenario 3 shows tunneling of EFM OAMPDUs through the
associated Ethernet PW. To configure termination (scenario 1), use the
config>port>ethernet>efm-oam>no shutdown command.
Figure 6 EFM Capability on the 7705 SAR
Note: This feature applies only to port-based Epipe SAPs because 802.3ah runs at port
level, not at VLAN level.
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