Packet switched IP networks offer several specific advantages over circuit switching implementations.Automatic fault tolerance is one of the common denominator of these advantages.Packet switched networks automatically configures themselves so each router knows the topology of its surroundings.
Information about a failure situation in network nodes or links connecting the network nodes is propagated to the nearby nodes and after a short period the network is able to rereout the packet around the failure point. Even Ipv4 is capable of this rerouting functionality through routing protocols. Ipv6 adds the ability to automatically configure and learn about new network nodes. Ipv4 is weaker in this respect evne though both are fault tolerant systems.
The ability to use Ipv6 on a global scale adds on furthur security to Ipv6-based networks. If the network of one ISP stops working for example or become sluggish, it is possible for the Ipv6 network to make a binding update to its home agent through another ISP, thus allowing the use of alternative routes an bringing a new level of robustness to the network.
3GPP, a standardization body for mobile networks, has desingned Ipv6 to be used exclusively in the IP Multimedia Core Network (IM CN) domain in 3GPP Release 5. This is the domain that will process all the packet based multimedia in the future 3G networks.
Information about a failure situation in network nodes or links connecting the network nodes is propagated to the nearby nodes and after a short period the network is able to rereout the packet around the failure point. Even Ipv4 is capable of this rerouting functionality through routing protocols. Ipv6 adds the ability to automatically configure and learn about new network nodes. Ipv4 is weaker in this respect evne though both are fault tolerant systems.
The ability to use Ipv6 on a global scale adds on furthur security to Ipv6-based networks. If the network of one ISP stops working for example or become sluggish, it is possible for the Ipv6 network to make a binding update to its home agent through another ISP, thus allowing the use of alternative routes an bringing a new level of robustness to the network.
3GPP, a standardization body for mobile networks, has desingned Ipv6 to be used exclusively in the IP Multimedia Core Network (IM CN) domain in 3GPP Release 5. This is the domain that will process all the packet based multimedia in the future 3G networks.
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