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Cisco PublicBRKBBA-2006
Single VLAN with
Policy Based Routing (PBR)
One VLAN per switch (U-PE) or per ring (based on PVLAN Support)
No specific requirements for CPEs (no VLAN functionality)
Multiple per-SSP address scopes by secondary addresses on
N-PE (for downstream traffic)
Upstream PBR based on source address into SSP specific VLAN
VLAN to MPLS VPN/VRF mapping with „Source IP Address VRF
Select“ feature
DHCP server identifies subscriber via Option 82 and the appliance via
MAC address or DHCP option 60 to allocate from proper address pool
DHCP Snooping/IP Source Guard ensures that only valid packets are
accepted from customer, prevents IP spoofing and using unassigned
IP addresses
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