The Journey of a Network Engineer:

design

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February 16, 2013  2:17 AM

How to configure VSS?



Posted by: Sulaiman Syed
6500, 6509, Cisco, cost, datacenter, design, Firewall, FWSM, server farm, VSS

Virtual Switching System (VSS) was one of the early technologies that introduced in the datacenter world to eliminate spanning tree protocol (STP). Thus, giving networks and servers multiple active links with non-blocking ports architecture. The configurations are quite simple and straight...

August 1, 2012  1:43 AM

New Datacenter Network Design Proposal



Posted by: Sulaiman Syed
6509, application, CCDP, Cisco, datacenter, design, detail, network, SUP720

I have mentioned the DC design that was at hand, A new network design was proposed to tackle the issues. Figure below shows the proposed design. The benefits of such design are:


July 30, 2012  5:08 PM

New Datacenter Network Design



Posted by: Sulaiman Syed
application, Catalyst, CCDP, Cisco, datacenter, design, IPv4, network

I've came upon a network design for data center. While the physical infrastructure consisted of the latest technology,  it had "flaws" in the technical side of  it. The figure blew shows the connectivity.  


January 1, 2012  8:05 AM

Moving from Explicit Proxy to Transparent Proxy – part 3



Posted by: Sulaiman Syed
6500, BlueCoat, Cisco, design, network, packeteer, packetshaper, paloalto, proxy, transparent

While we had overall idea of the design direction, we have identified other points that were integrated into the final design. The diagram below shows the almost finalized design.


December 27, 2011  1:11 AM

Moving from Explicit Proxy to Transparent Proxy – part 2



Posted by: Sulaiman Syed
Cisco, design, explicit, Firewall, network, PBR, proxy, router, switch, transparent

If you have read the first part of this series, you would know that there is major upgrade plan move from explicit proxy...


February 23, 2011  5:29 AM

How to design transparent proxy?



Posted by: Sulaiman Syed
Cisco, design, in-line, network, PBR, proxy, router, transparent, WCCP

Almost every organization uses proxy. The benefits of proxy servers are countless. Some of these benefits are mentioned:

  • Add Accounting
  • Add Authorization
  • Reduce the load on the external (wan) link
When the proxy is installed in transparent setup. it...


October 31, 2010  2:39 PM

From trunk ports to routed ports – part 3



Posted by: Sulaiman Syed
access, Cisco, client, configuration, core, design, distribution, network, routed, switch, trunk, vtp

This is the final part of the series. In this blog entry, I would post the sequence and the configuration lines that are needed to be done in order to have smooth transition from trunk ports to routed ports. The

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October 27, 2010  3:46 AM

From trunk ports to routed ports – part 2



Posted by: Sulaiman Syed
access, Cisco, core, design, distribution, ip, network, routed, scheme, subnet, trunk, vlan

In this part, I would talk bout the migration from current network, to the proposed network. Figure 1 shows a core layer with two distribution layer, the one on the left is current, and the one on the right is the proposed. Before explaining any further, take note that although user vlans were...


October 23, 2010  1:37 AM

From trunk ports to routed ports – part 1



Posted by: Sulaiman Syed
Cisco, core, design, distribution, infrastructure, loop, ports, routed, stp, switch, trunk

In this post I'll talk about...


October 7, 2010  8:53 AM

Cisco Certified Design Professional



Posted by: Sulaiman Syed
CCDP, CCNP, Certified, Cisco, ciscopress, design, professional, route, switch

CCDP or Cisco Certified Design Professional is one of the best certificates for any engineer working in middle to large enterprise. CCDP requires the candidate to pass Route,


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