User guide

EDA System Services
46 1/1551-HSC 901 35/3 Uen C 2005-12-02
6.1.2 CPE Access Methods
When the End-user is to receive an IP based service, the Customer
Premises Equipment (CPE) must be configured with IP settings such as IP
address, subnet mask and default gateway. The way in which the
equipment receives these settings is called Access Method. The Access
Method is an attribute of an EDA Service, and when the Service is
assigned to an End-user, the CPE can only use that specific Access
Method. The following Access Methods can be used:
• DHCP - Dynamic Host Configuration Protocol, which means that the IP
address of the CPE is set dynamically by the Service Broker’s DHCP
server.
• Static IP address - The CPE equipment is assigned a static IP address
or IP address range (that is, DHCP or PPP cannot be used).
• Transparent LAN – When LAN-to-LAN transparency is used, all filtering
in the IP DSLAM for the subscriber is disabled, and broadcast is
allowed. If any filtering or protection is desired, it must be done in the
Edge Node or CPE.
• PPP over Ethernet – The CPE can only use PPPoE to access the
network.
• PPP over ATM – Only PPPoA can be used by the CPE. The IP DSLAM
will convert the PPPoA from the CPE to PPPoE.
• PPP Automatic – The IP DSLAM will automatically sense the access
method (PPPoE or PPPoA) used by the CPE.
• Static IP over ATM – This method is used for IPoA access
(RFC2684R) with end-user equipment by using a static IP address.
• Dynamic IP over ATM – This method is used for IPoA access
(RFC2684R) with end-user equipment requesting dynamic IP address
assignment via DHCP.
6.1.3 Transparent VLAN Service
The transparent VLAN Service (TVLS) is realized by using VLAN stacking,
also called QinQ. QinQ is a method used for allowing multiple VLAN tags in
a single Ethernet frame. The VLAN transparency and QinQ function has no
relation to the End-user Access Method. Note that the use of QinQ is not
mandatory.