Network technologies and trends:

Security


April 25, 2011  5:10 AM

DNS Queries in Windows 2008 R2 Server fails – Part 2



Posted by: Yasir Irfan
ADSM, Blade servers, Cisco ASA, Cisco PIX 525, Cisco PIX 525 firewall, default DNS inspection policy-map, DMZ zone, DNS forwarder, DNS Queries, DNS Queries in Windows 2008 R2 Server, DNS Queries in Windows 2008 R2 Server fails, Internal Network, Internet, internet IP address, ISP, Network technologies & trends, PAT, Servers, Syslog, Windows 2008 R2 Server

In my previous post I was talking about the DNS query problem we were facing with Windows 2008 R2 server. The solution is quite simple. Immediately I started monitoring...

April 14, 2011  9:45 PM

CCIE Service Provider v3.0 Exams Released



Posted by: Yasir Irfan
aggregation and edge technologies, CCIE, CCIE Exam, CCIE Service Provider, CCIE Service Provider v3.0 Exams Released, Cisco Learning Network, Cisco Systems, IP core technologies, remote access technologies, Security, traversing, updated v3.0 CCIE Service Provider written and Lab exams, video, Voice

According Cisco they will release an updated v3.0 CCIE Service Provider written and Lab exams in all testing location worldwide and the v2.0 exam will retire simultaneously. CCIE Service Provider aspirers willing to take exam on or after April 18th 2011 should expect to be tested on the...


April 12, 2011  12:36 PM

Cisco Learning Labs Provide Hands-On Training



Posted by: Yasir Irfan
CCNA, Cisco, Cisco Authorized Learning Partners, Cisco CCIP®, Cisco CCNA ®, Cisco CCNP®, Cisco Certifications, Cisco IOS® Software on UNIX, Cisco Learning Network Store, Cisco Systems, ebay, GNS3, GNS3 topologies, Multiple labs, Network Technologies and Trends, real Cisco hardware, self-study, simulators, Switching

  Whenever you are preparing for the Cisco CCNA ®, Cisco CCNP®, and Cisco CCIP® certifications especially when you are doing a self-study the major concern is lab experience to answer the simulated questions. Often many of us end up looking for real Cisco hardware from eBay, as most of the...


March 27, 2011  5:46 AM

What is IP SLA?



Posted by: Yasir Irfan
CCNP, CCNP 642-813 Exam, CCNP Switch Official Certification Guide, Cisco CCNP- Switch Exam, Cisco IOS, Cisco IOS devices, Cisco IOS IP Service Level Agreement, Cisco Routers, Cisco Switches, Cisco Systems, David Hucaby, DNS, http.ftp, IBM SNA Native Echo, ICMP Echo Path, ICMP Ping, icmp-echo, IOS version 11.2, Network technologies & trends, patch-echo, path-jitter, Performance Routing, Response Time Responder (RTR), Service Assurance Agent (SAA), Switching, tcp-connect, udp-echo, udp-jitter, · What is IP SLA?

 When you are preparing for Cisco CCNP- Switch Exam, IP SLA is one of the key topics included at quite later stage even surprised David Hucaby the author of the title "CCNP Switch Official Certification Guide"  Even he included the supplementary material for the "CCNP Switch Official...


March 12, 2011  6:18 AM

CCNP – Switch Key Topics 1 – Spanning tree loop guard



Posted by: Yasir Irfan
BCMSN exam, BCMSN exam (642-812), BPDUs, CCNP, CCNP Switch, CCNP SWITCH 642-813, Cisco Certifications, global configuration mode, Implementing Cisco IP Switched Network, IOS command, Network Troubleshooting, non-Designated Port, point-to-point, Spanning tree loop guard, spanning tree protocol loops, spanning-tree loopguard default, STP loop-inconsistent Blocking state, STP loops, Switching, UDLD, UDLD feature

  When you are preparing for the CCNP Switch (642-813) or BCMSN exam (642-812) there are quite a few topics which are important not only from the perspective of passing  the  "Implementing Cisco IP Switched Network" exam or...


January 30, 2011  10:21 AM

Juniper Networks introduces flexible education program for their partners



Posted by: Yasir Irfan
business model, business value, cloud networking, Continuing Education Program, Data Center, EMEA, EMEA partner conference, hands-on experience, Juniper Networks, Juniper Networks introduces flexible education program for their partners, mobility, Network technologies & trends, on-demand, Routing, sales and systems engineers, Security, Switching, technical and sales

  With addition of new partner program by Juniper Networks helps their partners to build expertise in core areas include security, switching, routing, mobility and cloud networking. The Continuing Education Program from Juniper Networks has been designed to empower systems and sales...


December 30, 2010  8:38 PM

What are key features and benefits NX-OS offers Series 2



Posted by: Yasir Irfan
128-bit Advanced Encryption Standard, Base Feature, BGP, Cisco Nexus 7000 Series Switches, Cisco Trustsec, Continuous system operation, CTS, data confidentiality, Data traffic, EIGRP, Enterprise Services Package, Etherchannel, GRE, IEEE 802.1AE link-layer cryptography, In-Service Software Upgrade, integrity, ISIS, key features and benefits NX-OS, Layer 2 protocols, Layer 3 protocols, MPLS, NX-OS, OTV, Policy based routing PIM, STP, Switches, VDC, Virtual Device Contexts, Virtual Port Channels (vPC)

In my previous post I did discussed about some of the key features of NX-OS lets see...


December 30, 2010  8:35 PM

What are key features and benefits NX-OS offers Series 1



Posted by: Yasir Irfan
128-bit Advanced Encryption Standard, Cisco Nexus 7000 Series Switches, Continuous system operation, CTS, data confidentiality, Data traffic, Etherchannel, IEEE 802.1AE link-layer cryptography, In-Service Software Upgrade, integrity, key features and benefits NX-OS, STP, Switches, VDC, Virtual Device Contexts, Virtual Port Channels (vPC)

Apparently the NX-OS includes some quite interesting kef features and benefit. In this post I will try to highlight few of those features. Some of them are as follows


December 30, 2010  8:31 PM

A brief overview of Cisco NX-OS



Posted by: Yasir Irfan
A brief overview of Cisco NX-OS, availability, Cisco Nexus 7000 Series switch, Cisco NX-OS, Cisco Storage Area Network Operating System, Data Center, data center-class operating system, IPv4, IPv6, management features, NX-OS, routing multicast, SAN-OS, Security, serviceability, Virtualization

No doubt Cisco Nexus 7000 Series switch is a better choose for Data Center so does the NX-OS. Cisco Systems built the NX-OS data center-class operating system with modularity, resiliency and serviceability as it foundation....


December 26, 2010  5:46 AM

What happened to Ten Giga Ethernet interface in Nexus 7000 Series Switch?



Posted by: Yasir Irfan
Cisco Catalyst 6500 Series, Cisco Nexus 7010 Series Switch, Cisco NX-OS software, Cisco Systems, Core Switches, Data Center, Giga Ethernet, IP telephony, Juniper, mission-critical, Network, Network Technologies and Trends, Nexus 7000 Series Switches, Nortel, Ten Giga Ethernet interface, What happened to Ten Giga Ethernet interface in Nexus 7000 Series Switch

 Our Network Infrastructure is currently being under major revamp. We are expanding our Data Center as well our enhancing our services to our customers with the introduction of IP telephony, better internet speed and of course better systems. When we started planning for this project lot of...


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