Protocols

44; a standard method of providing sessions is needed.

Many protocols came before SIP, such as H.323. While H.323 provided an all-in-one solution, it was not flexible enough to provide for much beyond voice services. SIP also brings Web 2.0 concepts into fruition, but in a completely different manner.

SIP is a primitive in that it does not provide services; it provides a conduit for services. For example, consider SIP a regular telephone line. The telephone line doesn't provide a...

for various higher level Microsoft communications protocols, as well as for network printing, resource location services, remote management/administration, network authentication (secure establishment services) and RPC (Remote Procedure Calls).

Each WANJet appliance has a deep understanding of the CIFS protocol and can therefore act on behalf of a CIFS client (e.g. Microsoft XP computer) and server (e.g. Windows Server 2003 computer) to make the interaction between the two...

Real-Time Streaming Protocol (RTSP) is a foundation for the current convergence of communications. When implementing RTSP, the multiple port and protocol nature of RTSP makes streaming audio/video difficult to manage. This white paper explains it. The growth of the Internet has provided the ability to share, communicate, and preserve more communications than ever. Real-Time Streaming Protocol (RTSP) was developed in the late 1990s, and is a foundation for the current...

also includes (but is not limited to) the use of these protocols: IP, Enhanced Interior Gateway Routing Protocol (EIGRP), Serial Line Interface Protocol Frame Relay, Routing Information Protocol Version 2(RIPv2),VLANs, Ethernet, access control lists (ACLs)."

To reflect these changes, we have updated our popluar overview, CCNA Review, to bring you CCNA v2.0 Review. This paper can help students understand what types of information would be required to pass the new version of the composite exam...

Read this E-Guide and explore how constructing your service organization around SIP and utilizing SIP-based contact center can make managing premium service channels more effective and interactively guide lower-value clients. Session initiation protocol (SIP) is enabling more and more organizations today to overcome the limitations of their current contact center solutions. It permits superior delivery of customer service strategies by providing consistent...

for a more in depth look at understanding today's security protocols and wireless security encryption options to keep your WLAN secure. Businesses today must invest time in ongoing wireless security management of their WLANs to ensure that it can withstand and prevent intrusion as well as detect intrusion attempts. Read this E-Guide-a series of Expert Tips from SearchSecurity.com and SearchNetworking.com-for a more in depth look at understanding today's security protocols...

There are pros and cons to running multiple protocols through a single array controller. File-system protocols like CIFS and NFS treat files as a single entity. For example, when a user opens a file, it's opened in its entirety and then locked to prevent others from modifying it. This is ill-suited for apps where data is accessed at a sub-file level, such as databases where small pieces of information are continuously read and updated within a larger file. Without question, block...

You don't have to be an iSCSI cheerleader, but you should know the score when it comes to this maturing protocol. iSCSI, the flagship IP SAN protocol, now enjoys or should enjoy the same respect as Fibre Channel (FC). But with respect comes responsibility. While some storage administrators may be hesitant to have iSCSI in their environments, it should be treated as a mature protocol and deserves the same level of administrative discipline deployed for FC networks. There are plenty of...

The Akamai EdgePlatform addresses the root-causes of Internet performance and scale bottlenecks by intelligently placing itself between the end-user and origin data-center as an overlay network to the Internet. The Akamai EdgePlatform addresses the root-causes of Internet performance and scale bottlenecks by intelligently placing itself between the end-user and origin data-center as an overlay network to the Internet, transforming it into a high-...

As RFID adoption continues to grow, engineers are faced with an increasing need to validate tags both for interoperability with products from other vendors and for conformance with the specified protocol. As RFID adoption continues to grow, engineers are faced with an increasing need to validate tags both for interoperability with products from other vendors and for conformance with the specified protocol. In today's market, these test needs are coupled with...

more and more users are using Peer-to-Peer (P2P) protocols to share very large files as the proliferation of broadband increases. This trend has exponentially increased traffic flows across very wide area networks. With the increasing proliferation of broadband, more and more users are using Peer-to-Peer (P2P) protocols to share very large files, including software, multi-media files, and applications. This trend has exponentially increased traffic flows...

is further limited by natural behavior of application protocols (especially when faced with latency, jitter, packet loss, and congestion at the network level), application protocols that engage in excessive handshaking across the network links, and the serialization of the applications themselves.

This white paper is intended to shed light on the issues affecting application performance in the wide area, and to give IT managers the knowledge required to design...

architectures, as well as a choice of call control protocols. The design decision may be based on corporate policies (centralize control of infrastructure and services or providing autonomy to each site by distributing control), or the decision may be based on application and service requirements which may dictate one voice control protocol over another.

Common deployment models include:

• Single Site
• Multi-site Centralized
• Multi-site Distributed
• Distributed Single

...

of specialized servers connected through optimized protocols, the platform transparently overlays the Internet and optimizes application and content delivery on-demand. By addressing the shortcomings in the core Internet protocols, Akamai has created a delivery system across the edge of the network that is designed to improve the performance, availability and scale of dynamic IP-enabled applications, Web Services and static content. A closer look at the Akamai EdgePlatform...

a way that runs fast with low overhead across a full range of protocols and application environments.

This white paper highlights a data deduplication system that is powerful enough to become a platform that general applications can leverage and isn't merely a feature of an existing solution.

Download this white paper to discover some of the features and benefits of this system, including:

• Recognition of variable length duplicates
• Local compression capabilities
• Format

...

capability of F5 Networks to handle the ubiquitous protocols of the IMS world (SIP, RTSP, SCTP) in addition to the many other TCP/IP protocols used in IP networks, the BIG-IP family of Application Delivery Networking equipment is perfectly poised to help the service provider of today - and tomorrow...

usability of IP applications. There are many services and protocols used by various IP applications, but DHCP and DNS are used by nearly all IP devices for every application for proper initialization on the IP network and for easier usability for network users.

This white paper will offer approaches to streamlining efforts to keep IP networks up and running for critical DNS and DHCP services, then discuss the IPControl Sapphire appliances, which achieve the next level in...

Wrong. iSCSI and NFS don't have this problem because these protocols are IP based and you can assign different IP addresses to your VMs...

technology, industry standards, or communication protocols are being used. Companies have been working to implement a consolidated integration strategy that will achieve shorter production times, faster order fulfillment, reduced inventory on hand, and tighter control over financial processes. Over the past decade, companies were focused on optimizing their internal core infrastructure technologies to achieve better integration benefits. However, the...

Since its inception, Session Initiation Protocol has revolutionized the way people communicate using converged services. SIP provides the framework for delivering voice, video, data, and wireless services seamlessly. Converged networks have come a long way since the 1990s. New applications like Instant Messaging, Unified Communications, and IP Telephony have accelerated the adoption and the deployment of converged voice and data services in the enterprise...

The new Fibre Channel over Ethernet technology appears to be accepted by a large majority and wide range of market vendors. This Podcast explains this new networking protocol The new Fibre Channel over Ethernet technology appears to be accepted by a large majority and wide range of market vendors. This Podcast explains this new networking protocol and shows how end users can leverage the investment they've already placed in Fibre Channel within their existing data center...

Across all key protocols, a high-performance, intelligent data loss prevention (DLP) solution is a must-have for today's organizations. Read this white paper to learn the best practices for DLP. There are two key capabilities required for content filtering: high performance and the ability to accurately scan nearly anything. Let's begin with the former. With today's ever-increasing bandwidth requirements, high performance is a must...

Multi-protocol Layer Switching (MPLS) VPNs are the ideal solution for medium and large enterprises that currently deploy site-to-site VPN services. Multi-protocol Layer Switching (MPLS) VPNs are the ideal solution for medium and large enterprises that currently deploy site-to-site VPN services. But the complexity of service assurance challenges is daunting for both service providers and enterprises. In this podcast learn how to:

• Manage the network

...

LINX is an inter-process communications (IPC) service for distributed systems and is based on OSE's LINK Handler protocol, which has been a key message passing component in OSE. System complexity is increasing at an almost exponential rate--one estimate is that it is doubling every four months. A single discrete system is increasingly rare. Distributed and pervasive computing have resulted in systems of systems, and the component systems may be based on several...

It is well designed with support for multiple encryption protocols, and is easily reconfigured in case any should get cracked or outdated. Encryption cannot patch the holes created by insecure software.

Security practitioners love SSL, and with good reason. It is well designed with support for multiple encryption protocols, and is easily reconfigured in case any should get cracked or outdated. It is an incredibly useful tool, protecting transactions as they cross otherwise insecure...