Direct Connections - Avaya 8800 Planning And Engineering

Layer 3 network design
Figure 47: Indirect PPPoE and IP configuration

Direct connections

To directly connect to the Avaya Ethernet Routing Switch 8800/8600, a user must create two
protocol-based VLANs on the port: one for PPPoE traffic and one for IP traffic (see the following
figure). When configured in this way:
• Port P1 is an access port.
Port P1 must belong to both the IP protocol-based VLAN and the PPPoE protocol-
based VLAN.
• Port P2 provides a connection to the ISP network.
P2 is configured for tagging to support PPPoE traffic to the ISP for multiple users. P2
ingress and egress packets are tagged (the packet type is PPPoE).
• Port P3 provides a connection to the Content Delivery Network.
P3 can be configured for either tagging or nontagging (if untagged, the header does not
carry any VLAN tagging information). P3 ingress and egress packets are untagged (the
packet type is IP). Port P3 must be a member of a routable VLAN, but cannot be a member
of the same VLAN as ports P1 and P2.
130 Planning and Engineering — Network Design November 2010