Figure 4-4 Eplan Services (Ieee 802.1D Bridge) - Huawei OptiX OSN 550 Configuration Manual

OptiX OSN 550 Multi-Service CPE Optical Transmission
System
Configuration Guide
The corresponding relations between the PORTs and the VCTRUNKs are provided in
4-3.
Table 4-3 Corresponding relations between the PORTs and the VCTRUNKs (VCTRUNK-
shared EVPL services)
NE1
User D1
User E1
EPLAN Services
The EPLAN services can be accessed from a minimum of two nodes. Hence, the services of
different users need not share the bandwidth. That is, in the case of EPLAN services, a bandwidth
is exclusively occupied by the service of a user and the services of different users are isolated.
In addition, the extra QoS scheme and security scheme are not required. The EPLAN services
have more than one node. Hence, the nodes need to learn the MAC addresses and forward data
according to MAC addresses. Therefore, Layer 2 switching is realized.
As shown in
NE1, the IEEE 802.1d bridge is established to achieve EPLAN services. The IEEE 802.1d bridge
can create the MAC address-based forwarding table, which is periodically updated by using the
self-learning function of the system. The accessed data can be forwarded or broadcast within
the domain of the IEEE 802.1d bridge according to the destination MAC addresses.

Figure 4-4 EPLAN services (IEEE 802.1d bridge)

VCTRUNK1
Issue 02 (2011-06-30)
PORT1←→VCTRUNK1
PORT2←→VCTRUNK1
Figure 4-4, three branches of user F need to communicate with each other. On
U2000
NE2
PORT1
F2
IEEE 802.1d bridge
VCTRUNK2
PORT5
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NE2
VCTRUNK1←→PORT1
VCTRUNK1←→PORT2
NE3
NE4
NE1
F3
PORT5
VCTRUNK
F1
4 Configuring Ethernet Services
Table
User D2
User E2
PORT1
4-5