IPv6 Tunnels configured on CE CIsco. com IPv6 over IPv4 Tunnels v6 -5IPv6 …… Dual stack IPv4 菌的 IPy4-Pv6 Dual Stack CE routers Pv4-IPV6 V v6 CE routers oC48192 6 4 (PE) (PE) (v4 Py4 No impact on existing IPv4 or MPLS Core(IPV6 unaware) Only CEs have to be IPv6-aware(Dual stack) Mesh of IPv6 over IPv4 Tunnels ce-to-CE Overhead: IPy4 header mPls header MPLS/PN support lPv4-native and IPv6 tunnels Service Provider can't delegate his lPv6 prefix to the cE routers Presentation ID e 2003, Cisco Systems, Ino. All rights reserved
Pv6over“ Circuit over MPls” CIsco. com Circuit over MPLS (eg ATM VC, FR PVC, Ethernet 6 IPv6 IPv6 IPv6 routers circuit IPv6 v68 v6 IPv6 Pv6 No impact on existing IPv4 or MPLs Core(IPv6 unaware) Edge MPLS Routers need to support "Circuit over_ MPLS ● Mesh of“ Circuit Over MPls”PEto-PE PE routers can also be regular iPv6 routers Pv6 over AtM, IPv6 over FR, IPV6 over Ethernet,. to aggregate Customers IPv6 routers Presentation ID e 2003, Cisco Systems, Ino. All rights reserved
Native MPLS Support of IPv6 CIsco. com MPLS Label Switch Paths for IPv6 IPv6 IPv6 IPv6 v6 IPV6 MPLS PV6→◆ ←IPv6 All routers are Pv6-aware r. Core Infrastructure requires full Control Plane upgrade to IPV6 ·Pv6 Routing in core IPv6 Label distribution protocol in core Dual Control plane management if iPv4 and IPv6 services Presentation D e2003, Cisco Systems, Ino. All rights reserved
Agenda CIsco. com IPv6 migration approaches enabled b MPLS 6PE approach: IPv6 Provider Edge Router over MPLS/IPv4 ●Conc| usIons Presentation ID e 2003, Cisco Systems, Ino. All rights reserved