By Mark Grayson
The whole consultant to applied sciences and protocols for providing seamless cellular net reviews In development the MobileInternet, 3 top mobility architects and implementers from Cisco current whole foundational wisdom approximately tomorrow's cellular web. The authors disguise every thing from marketplace traits and consumer expectancies to the most recent technical ways for making the net "mobile through design." Writing for senior know-how decision-makers and community layout pros, the authors clarify the particularly static nature of the Internet's unique protocols and layout, speak about the idea that of "mobility," and determine evolving mobility necessities. subsequent, they completely clarify every one of modern so much promising recommendations for development mobility into the net, from info hyperlink layer to program layer. for every layer, the authors hide mechanisms, protocols, suitable wireless and mobile architectures, and key use circumstances. utilizing this book's information, cellular community executives can outline more beneficial ideas, community designers can build more advantageous architectures, and community engineers can execute extra winning migrations. Mark Grayson, Cisco exotic Consulting Engineer, leads Cisco's cellular structure approach. He has 20+ years of instant adventure starting from army and satellite tv for pc structures to the evolution of conventional mobile architectures and the production of latest small telephone ideas. He has been granted 50+ patents. Kevin Shatzkamer, Cisco exotic platforms Architect, is chargeable for long term technique and architectural evolution of Cisco cellular instant networks. His adventure levels from 3G and LTE to safety, video distribution, and QoS. He now works with either content material companies and repair companies to augment the end-to-end electronic media worth chain for mobility. Klaas Wierenga, Senior Consulting Engineer in Cisco's workplace of the CTO, has 15+ years of expertise enforcing assorted mobility, safety, and id strategies for businesses, municipalities, hospitals, and universities. He created the global eduroam provider for federated community entry in academia. * realizing key mobility marketplace tendencies: machine proliferation, accelerating intake, and radio-specific scalability difficulties * Reviewing the demanding situations that mobility provides to standard net architectures * realizing nomadicity, together with authentication for clients relocating throughout networks and operators * opting for possibilities to deal with mobility on the info hyperlink layer * evaluating and utilizing community layer strategies to bring seamless mobility and consultation continuity * Integrating mobility performance into the transport/session layer * including mobility performance to the appliance layer--including help for relocating media periods among units * remodeling web structure to allow long term advancements to mobility This ebook is a part of the Networking expertise sequence from Cisco Press(R), which deals networking execs precious info for developing effective networks, realizing new applied sciences, and construction winning careers.
Über den Autor
Mark Grayson is a uncommon consulting engineer at Cisco structures with accountability for major Cisco's cellular structure method. He has over two decades of expertise within the instant undefined, starting from the advance of army structures, the definition of satellite tv for pc verbal exchange architectures, and the evolution of conventional mobile structures to the production of the most recent small-cell recommendations. He holds a first-class honors measure in electronics and communications engineering from the collage of Birmingham (England) including a Ph.D. in radio communications. Mark has been granted over 50 patents within the quarter of cellular communications and is the coauthor of IP layout for cellular Networks (Cisco Press). you could touch Mark Grayson at email@example.com. Kevin Shatzkamer is a unusual platforms architect at Cisco platforms with accountability for long term approach and architectural evolution of cellular instant networks. He has labored at Cisco and within the cellular instant for over 10 years, concentrating on a number of applied sciences that come with 3G and LTE networks, packet gateways, network-based companies and protection, video distribution, caliber of provider, and end-to-end layout conception. Kevin holds 4 issued patents and has sixteen pending patents regarding all parts of labor. Kevin holds a Bachelor of Engineering measure from the collage of Florida and a grasp of industrial management from Indiana college. Kevin Shatzkamer is a standard speaker at a number of exchange exhibits and boards and has formerly released IP layout for cellular Networks, a Cisco Press e-book that discusses the applied sciences and specifications shaping the way forward for the cellular net, from RAN to prone. Kevin's present zone of concentration is the end-to-end electronic media price chain for mobility, operating with either content material companies and repair companies to create targeted cellular media carrier choices. you could touch Kevin Shatzkamer at firstname.lastname@example.org. Klaas Wierenga is a senior consulting engineer within the workplace of the CTO at Cisco. His 15-plus years of expertise comprise the making plans, research, and layout of diverse options for companies, municipalities, hospitals, and universities within the fields of mobility, safeguard, and identification around the globe. Klaas is the unique author of the global eduroam provider for federated community entry in academia and cocreator of the federated id answer that types the foundation of the Dutch government's e-Identity portfolio. he's the writer of various courses and has awarded repeatedly on instant networking, safety, and identification themes. Klaas is energetic inside 3GPP, within the crew chargeable for the protection structure of destiny cellular networks. He serves as chairman of the Abfab operating staff within the IETF, which offers with federated entry for non-web functions, in addition to of the duty strength on Mobility and community Middleware of TERENA, the eu organization for study and schooling Networks. Klaas holds a master's measure in desktop technology from the collage of Groningen (The Netherlands). you could touch Klaas Wierenga at email@example.com.
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Extra info for Building the Mobile Internet
6. The RES is sent to the MME and compared with the XRES. If the RES and XRES match, the terminal gets access. 1X. Captive Portals With the captive portal approach, the device gets access to the local wireless IP network only. Whenever the user requests a web page outside the local network, the captive portal captures that request (hence the name) and instead shows a login page in which the user enters his or her username and password or credit card details. The user credentials are verified in some kind of user database, and upon successful verification, the user then gets access to the Internet.
When the Internet became popular in the 1990s, this waste of usable address space resulted in a looming address shortage. To overcome this, the protocols were redesigned to allow a split between net-id and host-id at an arbitrary bit position. This system is called classless interdomain routing (CIDR), documented in RFC 15182. Associated with Chapter 2: Internet “Sessions” an IP address is now a network mask that indicates how many bits of the IP address (the so-called prefix) are used to indicate the net-id and how many belong to the host-id (the suffix).
Verification of the credentials of the users at the home network requires transporting the credentials to the home network and sending the outcome of the authentication back to Chapter 3: Nomadicity the visited network. The dominant transport protocol for transporting the credentials is RADIUS. The main advantage of the captive portal method for Wi-Fi is that it only requires a web browser on the user device. This is also why it is the most commonly used access method at public hotspots. The main downside is that because the Wi-Fi link is unprotected, simple MAC spoofing can be used by an attacker to piggyback an authenticated user’s connection.