Figure 23: Generic Customer Use Case For Lldp - Alcatel-Lucent 7750 Configuration Manual

Interface Configuration
MPLS/Native ETH
SG/R
Core
SG/R
P P
LAG
PE PE
PE PE
PE PE
QinQ
SWs
DSLAMs
Ethernet Links - FE/GE/10GE
OSSG263

Figure 23: Generic Customer Use Case For LLDP

The example displayed in Figure 23 depicts a MPLS network that uses Ethernet interfaces in the
core or as an access/handoff interfaces to connect to different kind of Ethernet enabled devices
such as service gateway/routers, QinQ switches, DSLAMs or customer equipment.
IEEE 802.1ab LLDP running on each Ethernet interfaces in between all the above network
elements may be used to discover the topology information.
Operators who are utilizing IOM3/IMM and above can tunnel the nearest-bridge at the port level
using the tunnel-nearest-bridge command under the config>port>ethernet>lldp>destmac
(nearest-bridge) hierarchy. The dest-mac nearest-bridge must be disabled for tunneling to occur.
7750 SR Interface Configuration Guide Page 107