
4.2.8 Bridge
A bridge is a functional unit that is used to implement the interconnection between two or more
LANs.
VB and LP
The switching domain of an Ethernet board that has the Layer 2 switching capability can be
divided into multiple sub-switching domains. As a result, if no services are interconnected,
different various bridges (VBs) cannot access each other. Each VB has an independent
configuration mode and uses an independent VLAN. Different VBs can use the same VLAN.
A VB can contain a number of logical ports (LPs). By configuring the mounting relation, you
can mount multiple PORTs and VCTRUNKs to the same VB.
shows the relations between VBs, LPs, PORTs, and VCTRUNKs.
Figure 4-16
Relations between VBs, LPs, PORTs, and VCTRUNKs
PORT1
VB1
LP3
LP6
LP2
LP5
LP4
LP1
VB2
LP3
LP6
LP2
LP5
LP4
LP1
VCTRUNK5
VCTRUNK4
VCTRUNK6
VCTRUNK3
VCTRUNK2
VCTRUNK1
Ethernet Switching Board
PORT2
PORT3
PORT4
PORT5
PORT6
Transparent Bridge and Virtual Bridge
l
The services of different transparent bridges are isolated , but the services in the same
transparent bridge are not isolated. The entire transparent bridge is a switching domain.
OptiX OSN 550 Multi-Service CPE Optical Transmission
System
Configuration Guide
4 Configuring Ethernet Services
Issue 02 (2011-06-30)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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