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mobility support. Abdullah Alghamdi. Generic handover performance requirements. Handover rates Fast reservations: Minimize RTT during QoS establishment Handover requests treated with higher priority Minimize number of bits transmitted over “slow” links. General issues with mobility support. - PowerPoint PPT Presentation
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MOBILITY SUPPORT
Abdullah Alghamdi
GENERIC HANDOVER PERFORMANCE REQUIREMENTS
Handover rates
Fast reservations:
Minimize RTT during QoS establishment Handover requests treated with higher
priority Minimize number of bits transmitted over
“slow” links
GENERAL ISSUES WITH MOBILITY SUPPORT
Inter-subsystem handover forces mobile node (MN) to change assigned IP address
Use an additional ID to identify NTLP transport state that does not include MN’s IP address and keeps association with flow ID(s) before and after handover
REQUIREMENTS FOR MOBILITY IN INTERNET
Mobility Transparency Easy to use Routing Security
WHAT IS IPV4?
IPv4 stands for Internet Protocol version 4. It is the underlying technology that makes it possible for us to connect our devices to the web
Without IP addresses, computers would not be able to communicate and send data to each other. It’s essential to the infrastructure of the web.
WHY ARE WE RUNNING OUT OF IPV4 ADDRESSES?
IPv4 uses 32 bits for its Internet addresses.
How does IPv6 solve this problem?
MOBILE IPV6
Mobile IPv6 is intended to enable IPv6 nodes to move from one IP subnet to another
While a mobile node is away from home
BASIC IPV6 ADDRESS TYPES
unicastmulticastanycast
IPV6 – ADDRESSING MODEL
Address are assigned to interfaces
Interface expected to have multiple addresses
Addresses have scope
Address have lifetime
TERMS USED IN MOBILE IPV6
Mobile Node Home Address Care-of Address Binding Home Agent Binding Cache
MAJOR DIFFERENCES BETWEEN MIPV4 AND MIPV6
No FA in Mobile IPv6
Packets delivery
QUALITY OF SERVICE
IPv6 header has two QoS-related fields 20-bit Flow Label
8-bit Traffic Class Indicator
New IPv6 option – QoS Object
CONCLUSIONS
Mobile IPv6 is An able and connect protocol for handling
mobility with IPv6 Lightweight protocol To minimize the control traffic needed to effect
mobility