Solutions Guide High Availability IPv6
Introduction The Internet has forever changed contemporary society, with online access an integral part of our 21st century lifestyles. Finding out what movie is on, or the location of a restaurant when out with your smartphone, shopping online and booking your next holiday are just a few of the things we now take for granted.
Next generation network transition Allied Telesis solutions offer the same levels of performance, high availability and manageability for both IPv4 and IPv6 networks. As you move from a current IPv4 network to a next generation IPv6 network, some transition will be required to ensure the new network will communicate with other local and remote devices and systems. Allied Telesis provide two mechanisms to facilitate this transition; dual stack and tunnelling.
Current IPv4 network Area 0 00 00 x9 x9 IPv4 OSPFv2 10 x6 x6 10 10 x6 Transition to IPv6 Area 1 Area 1 OSPF IPv4 IPv4 OSPFv2 Area 0 IPv6 00 00 x6 IPv4 x9 x9 IPv4 OSPFv2 IPv6 OSPFv3 10 Area 1 Area 1 OSPF IPv6 IPv6 x6 10 10 x6 IPv4 OSPFv2 IPv6 OSPFv3 Diagram 1 4 | High Availability IPv6 alliedtelesis.
High availability IPv6 networking Allied Telesis high availability solutions work equally well for IPv4 and IPv6 networks, and even networks that are in transition using a combination of both protocols. To provide a highly resilient solution requires that the infrastructure and features of the networking equipment, as well as the traffic passing through the devices, is well managed and can survive any disturbance or interruption to normal network connectivity.
Diagram 2 shows link aggregation between the core VCStack and edge switches. With link aggregation across ports on different virtual chassis members, there is no perceptible disruption in the case of a link failure, and the full bandwidth of the network is available. Link aggregation is also used to connect network resources, such as servers, across the virtual chassis members. This ensures device and path resiliency. Fast failover between stack members provides for an almost uninterrupted network service.
Graceful restart for dynamic routing protocols Along with VCStack, the other key component of this IPv6 high availability solution is the implementation of graceful restart (also known as non-stop forwarding) within IPv6 dynamic routing protocols. Graceful restart is a feature that has been added to routing protocols (RIP, OSPF, BGP) in recent years.
Products Allied Telesis has a range of products that will make the transition SwitchBlade x908 ADVANCED LAYER 3 Modular SWITCHES The Allied Telesis SwitchBlade® x908 advanced Layer 3 modular switch offers high flexibility and density in a small physical size, providing scalable and versatile switching solutions for today’s enterprise networks. Each chassis supports eight high-speed 60Gbps expansion bays, and can be paired in a VCStack.
x900 Series Advanced Layer 3 Switches The Allied Telesis x900 Series is one of our most advanced series of switches and is unmatched in performance, flexibility and reliability. This series provides fine service provisioning granularity, high availability, and advanced QoS. All x900 switches incorporate a switching core that yields wirespeed IPv4 and IPv6 routing and most switches feature robust hardware with dual hot-swappable power supplies.
About Allied Telesis Inc. Allied Telesis is a world class leader in delivering IP/Ethernet network solutions to the global market place. We create innovative, standards-based IP networks that seamlessly connect you with voice, video and data services. Enterprise customers can build complete end-to-end networking solutions through a single vendor, with core to edge technologies ranging from powerful 10 Gigabit Layer 3 switches right through to media converters.
