Huawei SmartAX MA5603T Configuration Manual page 514

SmartAX MA5600T/MA5603T/MA5608T Multi-service
Access Module
Commissioning and Configuration Guide
Concept
PW
AC
Split
horizon
6.1 Configuration Example of the VPLS Internet Access Service
This topic describes how to configure the Internet access service for individual users when the
VPLS networking is used at the access and aggregation layers.
6.2 Configuration Example of the VPLS Multicast Service
In the networking for multicast services, VPLS deployed on the MA5600T/MA5603T/
MA5608T enables the MA5600T/MA5603T/MA5608T to be dual homed to AGS devices
(aggregation switches), which ensures network reliability.
6.3 Configuration Example of the VPLS Enterprise Private Line Service
This topic describes how to configure the enterprise private line service when the VPLS
networking is used at the access and aggregation layers.
Issue 01 (2014-04-30)
Description
Pseudo wire. PW is a virtual connection between two PEs and transmits frames
between the PEs. PEs use signaling to establish PWs and maintain PW status.
On a VPLS network, PE routers transmit signaling to each other to establish
PWs of full interconnection. Signaling exchange modes are as follows:
l Martini mode: In this mode, signaling is exchanged using the LDP protocol.
This mode does not support the PE automatic discovery function. PEs need
to be configured manually. With this mode, the networking is simple, and
low requirements are imposed on PEs which do not need to cross domains.
l Kompella mode: Signaling is exchanged using the Border Gateway Protocol
(BGP). The MA5600T/MA5603T/MA5608T does not support this mode.
Attachment circuit. AC attaches a CE to a PE. An AC can be a physical or
logical link. It transmits frames between the CE and PE.
Split horizon is a technology that prevents route loops and speeds up route
convergence. In a VPLS network, full mesh and split horizon are used to prevent
loops. Split horizon in VPLS means that the data packets received from the PW
at the PSN side are not forwarded to other PWs. Instead, they are forwarded to
the private network.
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