Ipv6 Requirements; Ipv6 Design Recommendations; Transition Mechanisms For Ipv6; Dual-Stack Tunnels - Avaya 8800 Planning And Engineering

IPv6 requirements

To use IPv6, the switch requires:
• R series modules for hardware forwarding
• at least one 8895 SF/CPU or 8692 SF/CPU module with Enterprise Enhanced CPU
daughter card (SuperMezz)
• Ethernet Routing Switch 8800/8600 Software Release 4.1 or later for IPv6 hardware-
based forwarding

IPv6 design recommendations

Avaya Layer 2 and Layer 3 Ethernet switches support protocol-based IPv6 VLANs. To simplify
network configuration with IPv6, Avaya recommends that you use protocol-based IPv6 VLANs
from Edge Layer 2 switches. The core switch performs hardware-based IPv6 line-rate routing.
For IPv6 scaling information, see

Transition mechanisms for IPv6

The Avaya Ethernet Routing Switch 8800/8600 helps networks transition from IPv4 to IPv6 by
using three primary mechanisms:
• Dual Stack mechanism, where the IPv4 and IPv6 stacks can communicate with both IPv6
and IPv4 devices
• Tunneling, which involves the encapsulation of IPv6 packets to traverse IPv4 networks
and the encapsulation of IPv4 packets to traverse IPv6 networks
• Translation mechanisms, which translate one protocol to the other

Dual-stack tunnels

A manually configured tunnel (as per RFC 2893) is equivalent to a permanent link between
two IPv6 domains over an IPv4 backbone. Use tunnels to provide stable, secure
communication between two edge routers or between an end system and an edge router, or
to provide a connection to remote IPv6 networks.
Edge routers and end systems (at the end of the tunnel) must be dual-stack implementations.
At each end of the tunnel, configure the IPv4 and IPv6 addresses of the dual-stack routing
switch on the tunnel interface and identify the entry and exit (or source and destination) points
using IPv4 addresses. For Enterprise networks, your ISP provides you with the appropriate
Planning and Engineering — Network Design
Table 5: Supported scaling capabilities
Internet Protocol version 6
on page 27.
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