Zhone zNID-GPON-2402 Configuration Manual page 214

Special scenarios
Figure 168: MMR provides live, recorded, and on demand programming for PCs,
media servers (like the Xbox) and TV
The wire speed NAT Routing capabilities of Zhone's zNID product family are
required to support multiple concurrent High Definition IP TV streams with
low latency and no packet loss. This is just one of the key attributes of the
zNID product line required to support the integrated MMR Home Gateway
capability.
There are several Residential Gateway requirements introduced by the MMR
application, and Zhone's zNID 24xx supports them all.
The Zhone MMR application described in this document shows the high level
configuration items and describes how the zNID 24xx ONT provides data and
IPTV services to downstream set top boxes and media servers.
The MXK aggregates the services for Internet, IP video, and Video on
Demand (VoD) segregating the services by VLAN. The zNID uses the VLAN
segregation to provide video services to IPTV, Media server and PCs.
214
zNID 24xx Series Configuration Guide