IPv6 Benefits - Its more than just larger address space

Everybody today is talking about migration to IPv6 becuase very soon there would be no more IPv4 addresses available for the growing number of devices, but IPv6 is much more than just larger address space. Lets a have brief look at IPv6 benefits - 

Better & Efficient Routing - 

IPv6 would not only reduce the size of the routing table but would also make it hierarchical & efficient. IPv6 allows the service providers to aggregate the prefixes of customer's networks into a single prefix and advertise just one prefix to internet instead of multiple prefixes. Apart from this IPv6 uses a protocol to discover Maximum Transmission Unit (MTU) so, that the fragmentation could be handled by the source device instead of the router

Better & Efficient Packet Processing - 

Most of the link layer & Transport layer technologies comes by default with a mechanism to perform checksum and posses some kind of error control capablities. So IPv6 got rid of the added burden of checksum and does not performs any more recalculations at every router hop. This had greatly simplified the IPv6 packet headers and makes packet processing more efficient.

No More Broadcast Storms -

Multicast finally had became the main stream technology for IPv6 and finally releiving all of us from the problems of broadcast. This not only saves us from the broadcast storms but also bandwidth hungry data like video streams could be sent to multiple destinations simultaenously, saving us a great amount of bandwidth. Non participating host doesn't have to listen and process broadcast packets anymore. IPv6 also has a new field in its header called "FlowLabel" that can indentify the packets from the same flow and forward them directly.

Simple Network Configurations -

Address auto-configuration (address assignment) is built in to IPv6. A router will send the prefix of the local link in its router advertisements. A host can generate its own IP address by appending its link-layer (MAC) address, converted into Extended Universal Identifier (EUI) 64-bit format, to the 64 bits of the local link prefix.

Better Application Support -

 
Eliminitaion of Network Address Translation (NAT) had enabled the network for end-to-end visiblity. With this peer-to-peer (P2P) networks would be easier to create and embedded Quality of Service (QoS) makes it robust for upcoming voice & video applications.

Efficient Security -

 
For all the IPSeC lovers, IPSeC is incorporated into IPV6 to provide confidentiality, authentication and data integrity. So, Network admins can now permit ICMPv6 packets on the firewall without fearing from its potential to carry malwares because IPSec can be applied to the ICMPv6 packets.

Understanding Five Nines of Uptime - Read This

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Cisco ASR 9000 - Network Virtualization Technology - Read This 

 

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