Router Role, Management Traffic Mapping

Router Role

3 Router Role

The Router or BRAS plays an important role in the Shared DSL concept, and must perform the following functions:

•DHCP requests from the IP DSLAM in the remote site must be relayed towards the EDA network, using the management VLAN ID.

•The Management PVC from the remote site must be mapped to the EDA Management VLAN.

•If PPPoE or PPPoA is used for the END-user traffic, it must be terminated by the BRAS.

•If the Router (or BRAS) is not an Edge Node of the EDA network as well, a tunnel must be established to the EDN network (for example L2TP or another VPN solution, see Figure 2 on page 5).

EDA

Network

Management

VLAN

					EDA
		Router/			Network
Broadband		Router/			Management
Broadband		BRAS	Broadband		Management
Network			Broadband		VLAN
Network			Network
Management	Router/		Network
Management	Router/	Tunnel	Management
PVC	BRAS		Management	Router/
	BRAS		PVC	Router/
			PVC	BRAS
				BRAS
Primary		Secondary	Primary		Secondary
Access Provider		Access Provider	Access Provider		Access Provider

Figure 2 Management Traffic Mapping

1/1553-HSC 901 86/1 Uen A 2006-02-21