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Using SERVAUTH to Protect TCP Port Usage

whitepaper As any user of WebSphere Application Server for z/OS knows, WebSphere uses a lot of TCP ports. Doing so reduces the chances of TCP port conflicts - if everyone in the organization knows that ports 28500 to 28599 are for WebSphere cell WPCELL, they...

Tags: application servers

[11 May 2008]

Enterprise Data Center Wide Area Application Services (WAAS) Design Guide

whitepaper WAAS provides application delivery, acceleration, WAN optimization, and local service solutions for an enterprise branch to optimize performance of any TCP-based application in a WAN or MAN environment.

Tags: data center

[11 May 2008]

A Firewall for Routers: Protecting Against Routing Misbehavior

whitepaper Deploying a RouteNormalizer requires no modification to routers if desired using a transparent TCP proxy setup. This paper presents the novel idea of route normalization by correcting on the fly routing traffic on behalf of a local router to...

Tags: switching

[11 May 2008]

A Firewall for Routers: Protect Again Routing Misbehavior

whitepaper Deploying RouteNormalizer requires modifications to routers if desired using a transparent TCP proxy setup. This paper presents the novel idea of route normalization by correcting on the fly routing traffic on behalf of a local router to protect...

Tags: switching

[03 May 2008]

Top 10 Reasons Why TCP Is Reliable

whitepaper This white paper provides the top 10 reasons why TCP is such a reliable protocol. In-depth knowledge of protocols can help you in many ways. It enables more efficient troubleshooting. It allows you to understand how firewalls and routers limit the...

Tags: tcp - ip, protocols, tcp, knowledge

[30 Apr 2008]

Traffic Analysis: From Stateful Firewall to Network Intrusion Detection System

whitepaper This paper also suggests some improvement over TCP state management and TCP flow normalization. Computer network is already an indispensable part of the modern life. To keep the network run smoothly, conditions are needed to know.

Tags: firewalls

[24 Apr 2008]

Windows XP Service Pack 2 Windows Firewall Group Policy Setup for Executive Software Products

whitepaper The firewall's behavior is such that by default, file and print sharing is disabled, and most TCP and UDP ports are blocked. By default, Windows XP Service Pack 2 (SP2) enables Windows Firewall, previously known as Internet Connection Firewall (ICF).

Tags: firewall, windows firewall, behavior, configure

[10 Apr 2008]

SABUL: A Transport Protocol for Grid Computing

whitepaper It uses UDP to transfer data and TCP to return control messages. This paper describes SABUL, an application-level data transfer protocol for data-intensive applications over high bandwidth-delay product networks.

Tags: web protocols, efficiency, transfer, fairness

[10 Apr 2008]

Cisco SN 5428-2 Performance Using FCIP

whitepaper The results of this testing have shown that when an FCIP channel is introduced into in a SAN environment using Cisco SN5428-2 storage routers, latency delays introduced because of long WAN distances between the SN 5428-2 storage routers did not...

Tags: switching, san, channel, routers

[10 Apr 2008]

UDT: An Application Level Transport Protocol for Grid Computing

whitepaper As network bandwidth and delays increase, TCP becomes inefficient. These problems are due to slow loss-recovery, a RTT bias inherent in its AIMD congestion-control algorithm, and the bursting data flow caused by its window control.

Tags: high performance computing, bandwidth, protocol, congestion

[10 Apr 2008]

Impact of TCP-Like Congestion Control on the Throughput of Multicast Groups

whitepaper This paper studies the impact of randomness (i.e.variation of queuing delay due to cross traffic) on the performance of a (one-to-many) multicast session in the presence of a "TCP-like" congestion control mechanism.

Tags: switching, tcp, multicast, cross

[04 Apr 2008]

Cisco Security Advisory: Denial of Service Vulnerability in Cisco Wide Area Application Services (WAAS) Software

whitepaper This condition may occur if a device running WAAS software is configured for Edge Services, which utilizes Common Internet File System (CIFS) optimization and receives a flood of TCP SYN packets on port 139 or 445.

Tags: security management

[03 Apr 2008]

Top 10 Reasons Why TCP Is Reliable

whitepaper This white paper provides the top 10 reasons why TCP is such a reliable protocol. In-depth knowledge of protocols can help you in many ways. It enables more efficient troubleshooting. It allows you to understand how firewalls and routers limit the...

Tags: diagnostics and analysis, knowledge, protocol, flow

[31 Mar 2008]

Step-by-Step Guide: Deploying SSTP Remote Access

whitepaper The use of HTTPS means traffic will flow through TCP port 443, a port commonly used for Web access. Secure Socket Tunneling Protocol (SSTP) is a new form of VPN tunnel with features that allow traffic to pass through firewalls that block PPTP and...

Tags: vpns

[28 Mar 2008]

Accelerate Applications Using Cisco Wide Area Application Services (WAAS) Mobile

whitepaper With its thorough understanding of the application protocols needed to safely optimize communications, use of file caching to reduce unnecessary data transfers and WAN use, and use of best-in-class WAN optimizations, Cisco WAAS Mobile provides IT...

Tags: wide area networks (wan)

[28 Mar 2008]

Marketing Services Firm Introduces Sleek SOA With Server Upgrade

whitepaper This platform would simultaneously provide TCP-bound connections for internal rich clients and HTTP-bound connections for remote, Internet-based clients so that separate Web farms were not required to serve different client types.

Tags: tcp - ip, connections, links, windows server

[23 Mar 2008]

Lossy Bulk Synchronous Parallel Processing Model for Very Large Scale Grids

whitepaper Many grid programming platforms use TCP due to its reliability, usually with some optimizations to reduce its costs. However, TCP does not perform well in a high bandwidth and high delay network environment.

Tags: parallel processing

[03 Mar 2008]

Modeling TCP in a Multi-Rate Multi-User CDMA System

whitepaper The work discusses in this paper, proposes a simple class of channel allocation policies to achieve this goal for TCP sessions. The paper develops an analytical model that explicitly captures both TCP dynamics and the impact of multiple users...

Tags: tcp - ip

[28 Feb 2008]

MSDN Webcast: Web Service Message Transmission Using WSE 2.0 (Level 400)

whitepaper The Web Services Enhancements for the Microsoft .NET Framework (WSE 2.0) enables sending and receiving SOAP messages by using the TCP protocol. The presenter also shows, how to work with Web services that use TCP and custom protocols instead of...

Tags: tcp - ip

[27 Feb 2008]

The Role of Buffer Management in Controlling the Effects of Congestion over 10 GbE Links

whitepaper DBP-sized buffers, together with RED congestion avoidance, can be used to optimize the utilization of congested links by TCP applications. This white paper describes the rationale for providing switch/routers with port buffers that are scaled to...

Tags: ethernet

[07 Feb 2008]

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