Zyxel-communications Multi-service Access Platform MSAP2000 Uživatelský manuál stáhnout pdf (Strana 104)

6. System Design

MSAP2000 Technical Manual V3.0 6-7

6.5. Ethernet over SDH Design

MSAP2000’s C/REoSM combines two Protocols: ITU-T G.7041

Generic Frame Procedure (GFP). Operators may select to use either

GFP or LAPS via LCT of OptiCore NMS.

CEoSM Function

CEoSM supports the following functions:



1 Port 10/100 Mbps Ethernet comply with IEEE802.3



Layer 2 Switch



ITU-T G.7041 Generic Frame Procedure

REoSM Function

REoSM supports the following functions:



8 Port 10/100 Mbps Ethernet comply with IEEE802.3



Layer 2 Switch

 ITU-T G.7041 Generic Frame Procedure

AAM (IP-Based

ADSL)

MSAP2000’s AAM provides IP-based ADSL services. Each AAM will

support 12 ADSL2/2+ interfaces, and can share 100 Mbps bandwidth.

When the RT uses OIM as its transmission trunk interface, ADSL

service can only be provided through the REoSM module, as shown

below. Each REosM can connect to 8 AAM/ESM cards at most,

which will allow 96 ADSL interfaces to share 100 Mbps of bandwidth.

10/100Mbps

Ethernet over

SDH

Besides having an AAM that is capable of supporting IP-based

ADSL2/2+ over SDH, MSAP2000’s EoSM can connect to the ESM, to

support 8 10/100 Mbps Ethernet interfaces. It can provide connection

to PCs or Notebooks via CAT5, to provide up to 100 Mbps of

broadband service.

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Zyxel-communications Multi-service Access Platform MSAP2000 Uživatelský manuál Strana 104