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- Get IT Done: An overview of streaming media transmission types
- An explanation of streaming media transmission typesGetting information to its destination is a big part of network administration. With users demanding Web-based solutions, such as streaming video for training, the role of the administrator is looking more and more like that of a traffic cop. Dictating which applications will or...
- Tags: NETWORKING, Web site development, Warren Heaton, streaming media, Get IT Done, network, multicasting
- Technical articles 2000-08-23
- Who ya gonna call? Cisco's Technical Assistance Center
- The network is down. Ghostbusters can't help. Luckily, Cisco's Technical Assistance Center TAC is ready to troubleshoot the problem—if you can supply the right information. Find out what TAC needs to know to get you back online.Troubleshooting Cisco networks is a difficult task. No matter how sound your troubleshooting methodology...
- Tags: NETWORKING, Warren Heaton, network, Technical Assistance Center, Cisco Systems Inc.
- Technical articles 2000-08-30
- What's the best WAN connection type for you?
- Is your company planning a WAN in the near future? If so, you'll need to know what each connection type has to offer. Check out Warren Heaton's overview of current WAN connection types in this week's Consultant's Corner.When designing a wide area network WAN, one of the most challenging issues...
- Tags: WANs, NETWORKING, Network technology, Warren Heaton, frame relay, connection type, network, WAN, X.25, ISDN
- Technical articles 2000-08-16
- Need to get your point across? Try Point-to-Point Protocol
- Point-to-Point Protocol can boost your network security and efficiency, but getting a handle on it can be a challenge. In this week's Consultant's Corner, Warren Heaton provides an overview of Cisco's implementation of PPP.Understanding the basics of Point-to-Point Protocol PPP is critical for network administrators. As more and more sensitive...
- Tags: NETWORKING, SECURITY, Warren Heaton, PPP, authentication, Link Control Protocol, Point-to-Point Protocol, network, password, Multilink PPP, Network Control Protocol
- Technical articles 2000-07-27
- Try switching tracks with a CCNA-WAN certification
- Cisco certifications are rapidly becoming the most coveted initials to append to your name. In this week's Consultant's Corner, Warren Heaton explains what skills are needed for the CCNA-WAN and offers suggestions on how you can prepare for it.The popularity of the Cisco Career Certification program has grown tremendously. Cisco...
- Tags: WANs, Network technology, NETWORKING, Warren Heaton, CCNA-WAN, Cisco Systems Inc., WAN
- Technical articles 2000-07-24
- Providing redundancy in switched networks using Spanning Tree
- In this week's Consultant's Corner, Warren Heaton provides an introduction to Cisco's Spanning Tree Protocol, a complex yet important network management protocol.As a network administrator in charge of enterprise routing, one of your main concerns is providing redundancy in the system. Unfortunately, providing redundancy in a Layer-2 switched network can...
- Tags: NETWORKING, Network administration, Warren Heaton, Spanning Tree Protocol, network
- Technical articles 2000-07-13
- Reducing latency with VLANs
- Your network is growing and you're getting feedback from users about slow Web pages. Do you add more Layer 3 routing? In this week's Consultant's Corner, Warren Heaton discusses the Virtual LAN alternative.The deployment of flat, Layer 2 switched networks has dramatically impacted the corporate LAN. By eliminating the latency...
- Tags: LANs, Warren Heaton, VLAN, network, Layer 3
- Technical articles 2000-07-06
- Virtual LAN trunking on Cisco Catalyst switches
- Confused about trunking between two switches? Get connected as Warren Heaton explains trunking basics and configuration options.More and more networks administrators are using Layer 2 switching as the data transport method of choice. As these networks grow, the network is eventually divided into multiple virtual LANs or VLANS. (For more...
- Tags: LANs, Network technology, NETWORKING, Cisco Catalyst, Warren Heaton, VLAN Trunking, Cisco Systems Inc., trunk, VLAN, Ethernet
- Technical articles 2000-06-29
- Configure IT Quick: Configure your Cisco Catalyst 5000 RSM for time-sensitive applications
- Learn how to use the Cisco Catalyst for applications that need careful timingTo meet the needs of time-sensitive applications such as voice over IP VoIP, many network administrators have replaced routers with Layer 2 switching technologies. Layer 2 switches—for example, the Catalyst 5000—can provide high-speed data transmission with low overhead.However,...
- Tags: Routers & switches, LANs, Network technology, NETWORKING, router, Warren Heaton, information technology, Cisco Systems Inc., Route Switch Module, Cisco Catalyst
- Technical articles 2000-06-22
- Transparent bridging with Cisco's Catalyst 5000 switches
- Do you know the five processes that enable transparent bridging with Cisco's Catalyst 5000 family of switches? Warren Heaton is here with a description of each.Cisco switches are layer 2 LAN devices used to create smaller collision domains. Creating smaller collision domains allows users full access to bandwidth and supports...
- Tags: LANs, Ethernet, Network technology, Warren Heaton, Cisco Catalyst, Cisco Systems Inc., destination address
- Technical articles 2000-06-15
- Changes to Cisco's Routing and Switching certification program will impact IT pros
- As the IT industry continues to evolve, so too must IT certification programs—and Cisco has joined the cert update trend. Learn what's changing in the Cisco Routing and Switching Certification program.First Microsoft, now Cisco. Just when you think you’ve earned certification and your work is over, the rules change. This...
- Tags: Warren Heaton, information technology, Cisco Systems Inc., Routing, Switching Certification program, certification
- Technical articles 2000-06-08
- Use Cisco's IPX SAP access list to control SAP traffic
- If you're a Novell engineer administering an older Novell network using SAP broadcasts, you can use a Cisco IPX SAP access list to improve performance. Warren Heaton has the details.If you’re running an older Novell network with NDS and IP, you can use Cisco routers to control SAP traffic. Here’s...
- Tags: NETWORKING, Network technology, Cisco Router, Warren Heaton, SAP AG, IPX, Service Advertising Protocol, Novell IPX, Novell Inc., network, Cisco Systems Inc., router, server
- Technical articles 2000-06-01
- Talking Shop: Introducing Transcender's new CCNA-CERT 1.0
- Basic specifications of the CCNA certification and Transcenders training materialTranscender Corporation , already known for its Microsoft test simulation software, is extending its product line with the introduction of the Cisco Certified Network Associate CCNA exam simulation software. With so few good self-study materials available for the CCNA exam (640-407),...
- Tags: Warren Heaton, CCNA-CERT 1.0, Cisco Systems Inc., Cisco Certified Network Associate
- Technical articles 2000-05-25
- Talking Shop: Use queuing to prioritize network traffic
- Before you increase bandwidth, look at this technique for prioritizing network traffic.In today’s multiprotocol wide area networks WANs, a diverse mixture of protocols and applications must share the same data path. When delay-sensitive applications run on these networks, the end user may see a severe degradation in the applications' performance....
- Tags: WANs, NETWORKING, Network technology, Weighted Fair Queuing, Warren Heaton, Cisco Systems Inc., Priority Queuing, WAN, network, queue, prioritization
- Technical articles 2000-05-18
- Seeking IT certification? We're here to help
- The quest for IT certification can raise many questions. Which program is right for you? What should you know before sitting for an exam? What resources are available? Check out these popular TechRepublic articles for all those answers and more.You either love it or hate it. Industry certification tends to...
- Tags: Quality, Erik Eckel Network+, MCP+I, MCSE, certification, Cisco Systems Inc., Cisco Certification, information technology
- Technical articles 2000-05-05
- ISDN: The old warhorse is still kicking
- Think ISDN is being supplanted by DSL and cable modems? Think again. Fast, reliable ISDN continues to hang in there. If you're seeking a high-speed solution, catch up on ISDN basics.Integrated Services Digital Network ISDN is an ITU-T International Telecommunication Union standard with roots dating back as far as 1968....
- Tags: Broadband Internet, Warren Heaton, ISDN
- Technical articles 2000-05-11
- Should you use BGP4 to route your Internet traffic?
- If you're a large enterprise, and Warren Heaton does mean large, BGP4 might be for you. Check out this week's Consultant's Corner for a quick lesson on Border Gateway Protocol Version 4.Chances are, if you don’t work for an Internet Service Provider ISP or the phone company, you’ve probably never...
- Tags: INTERNET, BGP, NETWORKING, Warren Heaton, BGP4
- Technical articles 2000-05-04
- Get IT Done: Enable directed broadcasts with Cisco's IP Helper Address feature
- See how to use Ciscos IP Helper Address feature to allow DHCP broadcasts to cross the router while keeping other broadcasts isolated to the local segmentTraditionally, routers have been used to separate broadcast domains. Essentially, a router is placed between two segments to prevent broadcasts from being forwarded between them....
- Tags: Network technology, NETWORKING, Routers & switches, Warren Heaton, Get IT Done, Cisco Systems Inc., IP Helper Address, IP, router, DHCP, server
- Technical articles 2000-04-13
- Build Your Skills: Use NAT to connect your network to the Internet
- Use NAT to provide access to the Internet for clients located on the internal network, or to allow users on the Internet to connect to servers on the private internal network.Network Address Translation NAT is a feature of the Cisco Internetwork Operating System IOS that maps private IP addresses to...
- Tags: NETWORKING, Warren Heaton, Network Address Translation, network, Internet, IP, IP address
- Technical articles 2000-04-27
- Get IT Done: Try multiprotocol routing with EIGRP
- EIGRP is a proprietary routing protocol that can add reliability and scalability to medium-size and large Cisco internetworks.A dynamic, easily managed proprietary routing protocol that can add reliability and scalability to medium-size to large Cisco internetworks, Enhanced Interior Gateway Routing Protocol EIGRP uses a combination of distance vector and link-state...
- Tags: Routers & switches, Network technology, NETWORKING, Warren Heaton, Get IT Done, EIGRP, Hello, internetwork, router
- Technical articles 2000-04-20
