By admin | June 22, 2009
01. Introduction to OSPF
02. OSPF Timers
03. OSPF Network Types
04. DR BDR Election
05. OSPF over Frame Relay – Non Broadcast
06. OSPF over Frame Relay – Broadcast
07. OSPF over Frame Relay – Point-to-MultipointAudio, Audio Exams, ISIS, OSPF
By admin | June 20, 2009
Effective July 16, 2009, the new CCIE Voice Lab Exam v3.0 will be live for test candidates. Also effective July 16, 2009, the Cisco CCIE Voice Lab Exam will feature a new type of question format in a section called Core Knowledge. In this new section, candidates will be asked a series of four open-ended questions that require a short, typewritten response (typically several words). The questions will be randomly drawn from a pool of questions on topics currently eligible for testing on the CCIE Voice Lab Exam. No new topics are being added. Candidates will have up to 30 minutes to complete the Core Knowledge section of the exam, and may not return to the questions later. First introduced to the CCIE Routing and Switching lab exam in February 2009, Core Knowledge questions will eventually be added to all CCIE tracks. The changes allow Cisco to maintain strong exam security, and they help ensure that only qualified candidates are awarded CCIE certification.Tags: CCIE Voice, Short Answer Question
By admin | June 13, 2009
Todd Lammle, CCNA/CCNP/CCSP/CCVP, CEH/CEFI, FCC RF Licensed, popular Sybex author and trainer at GlobalNet Training has been involved in computers and networking with Fortune 500 companies for over two decades. He has worked for large companies such as Hughes Aircraft, Xerox, Texaco, Toshiba, Cisco, AAA and IBM, among many others.
Todd has shared his networking knowledge and experience in more than 45 Sybex study guides, including his best selling Cisco CCNA Study Guide. Widely regarded as a best selling author, even surpassing the sales of Cisco Press.
Module 1 Internetworking
Introduction to basic networking Hardware and logical addressing OSI Reference Model The seven layers and their functions Ethernet Networking …Bit, CCNA 14, Lammle Press, Module DVD, Torrent
By admin | June 12, 2009
The characteristics of EIGRP follow:
§ Hybrid routing protocol (distance vector that has link-state protocol characteristics).
§ Use DUAL, first proposed by E. W. Dijkstra and C. S. Scholten, to perform distributed shortest-path routing while maintaining freedom from loops at every instant. Although many researchers have contributed to the development of DUAL, the most prominent work is that of J. J. Garcia-Luna-Aceves.
§ Cisco Proprietary created in 1994.
§ First released in IOS 9.21
§ Uses IP protocol 88.
§ Makes Automatic summarization on network Class boundary.BSCI, DUAL, EIGRP, SIA, Stub
By admin | June 12, 2009
- Know your filters: Offset-list, Distribute-lists, distance command.
- With filters read carefully: “between 25 & 45″ or “from 25 to 45″.
- Know your prefix-lists or alternatively using ACL’s instead.
- “passive interface” command, ONLY stops the sending of updates out the interface. Interface will still receive and process those updates. Passive interfaces will still be advertised in other updates.
- Advertising a default route out one interface: “ip summary-address eigrp [AD] 0.0.0.0 0.0.0.0″
- To see if a neighbor is configured as STUB, “show ip eigrp neighbors [detail]” as look for ‘CONNECTED SUMMARY’
By admin | June 10, 2009
Himawan Nugroho, CCIE #8171
Just another guy who wishes to be an expert one day. Discovers the future one day at a time. His greatest fear is becoming a guy without specialties.
The first and the only Indonesian Triple CCIE till date.
◆ Triple CCIE #8171 in Routing & Switching, Security and Service Provider track
◆ 8+ years experience in Networking: SP, Data Center, UC, Wireless, Security
◆ Broad experience within Asia Pacific and Middle East
2000 – 2001 Schlumberger Omnes, Indonesia
NOC Engineer to maintain the internal network within Asia and Australia
By admin | June 10, 2009
I wanted a reference to get GNS3 installed and running with links to important sites so here it is! Enjoy!
I. First you need to download and install GNS3. It is available from here:
II. Second you will want to download the IOS Unpack utility available here:
III. Install GNS3! Here is a link to a very good tutorial that covers both Windows as well as Linux (Ubuntu) installs. This tutorial also covers configuration such as IDLEPC values, BESS et. al. (Note: If this link is broken then search the GNS3 website)Cisco Lab, GNS3, Simulator, Virtual Lab
By admin | June 9, 2009
1. Traffic filtering
CBAC checks not only the information of the network layer and the transport layer but also the information of the application layer.
It can also filter the http traffic and block java plug-in
2. Traffic monitoring
CBAC monitors the traffic passing through the router and handles the TCP and UDP state information which can be used to generate the temporary list to release the rebound traffic and other traffic allowed.
3. Alert and auditCBAC, Security
By admin | June 8, 2009
Enhanced Interior Gateway Routing Protocol (EIGRP), Cisco’s proprietary yet hugely successful and widely deployed routing protocol, is known to behave disappointingly in inadequately designed networks. Cisco has improved EIGRP’s behavior dramatically with the introduction of stub routers in Cisco IOS release 12.0(7)T (integrated in IOS release 12.1, thus being available for a number of years). However, this feature has remained a well-hidden mystery, appearing in a short whitepaper, a Networkers presentation and getting five slides (almost identical to the Networkers presentation) in the release 3.0 of the Building Scalable Cisco Internetworks (BSCI) course.
In this article, we’ll explore the typical problems that the EIGRP stub routers help to solve, see how the introduction of stub routers improves network stability, and implement a fully redundant remote location (stub site); yet another very common design requirement that is not documented anywhere.
Introduction to Stub Routers
Let’s start with an easy example: here is a central site router linked to a large number of remote offices over slow speed or unreliable links (Figure 1).EIGRP, Stub