Medium Access Control (MAC) and Physical Layer (PHY) - CISE

4-June-07 P1901_PRO_016_r0
12.2.7 Auto-configuration & Networking
12.2.7.1 VLAN Network
The network model is described as follows:
• The BPL network is a switched network with different VLAN tags.
• BPL management protocols (PTTP, ABLP, etc.) use VLAN 1, while high-level management protocols
(DHCP, TFTP, HTTP, NTP, SNMP, etc.) use the management VLAN configured by the auto-configuration
procedure. The Management VLAN may be different in different LV cells.
• The end user node receives untagged traffic from the external interface and this traffic is tagged with the
correct Data VLAN according to the ISP operator that the customer belongs to. So there can be more than
one Data VLAN per LV cell.
• The end user node generates traffic from VoIP tagged with the correct VoIP VLAN according to the voice
operator that the customer belongs to. So there can be more than one VoIP VLAN per LV cell.
• It is possible to add private VLANs between specific customers that do not belong to any ISP or voice
operator. In this case, VLAN trunks must be defined in the intermediary equipment in order to allow all of
that tagged traffic.
All of the traffic is tagged inside the BPL network.
Each node must receive its VLAN configuration inside the auto-configuration file. In addition to this, and in order
to reduce the number of auto-configuration files, there will be a translation table transferred between nodes which.
The translation table contains information about the Management, Data and VoIP VLANs used in a LV cell.
Submission page 372 UPA-OPERA