The Journey of a Network Engineer:

network


March 16, 2011  4:21 AM

Manage Engine IT360 Review – part 3



Posted by: Sulaiman Syed
Cisco, Devices, IT360, management, network, OpManager, SNMP

In the previous two entries, we have Introduced Manage Engine IT360, and

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March 13, 2011  4:26 AM

Manage Engine IT360 Review – part 2



Posted by: Sulaiman Syed
alarm, application, dashboard, IT360, ITIL, manage engin, monitor, network

Following on my previous entry of IT360, where we have Introduced Manage Engine IT360. I would like to go on how the dashboard looks like. I think that once the...


March 12, 2011  5:13 AM

Manage Engine IT360 Review – part 1



Posted by: Sulaiman Syed
alarm, applications, Cisco, help desk, IT360, ITIL, manage engin, management, monitor, network, servers, SNMP

We are evaluating manage engine IT360 in the organization. We still don't have a centralized monitoring point. Every team does its own monitoring using their own devices. The management wants a transparent operation, while no downtime, and...


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...


February 9, 2011  8:16 AM

what is MPLS VPN?



Posted by: Sulaiman Syed
Cisco, how mpls vpn works, MPLS, mpls vpn, network, router, routing, service provider, virtual, virtual routing, vpn

When a service provider connects to sites that belong to one customer that uses private address then SP will advertise those routes within his autonomous systems. This could be handled when he is serving one ogranization. What if the SP is connecting 10 customers each with three sites and all of...


February 8, 2011  3:35 AM

How MPLS works?



Posted by: Sulaiman Syed
Cisco, how, how mpls works, ip, label, LDP, LFIB, MPLS, network, pop, push, QoS, tag, Unicast, works

MPLS protocol uses a different mechanism to forward packets. Packets are sent based on MPLS lable instead of the conventional packet's destination IP address. It add the ability to make forwarding decisions based on other factors beside the IP address, such as traffic engineering, QoS, and privecy...


December 7, 2010  2:59 AM

How to use IP Prefix List?



Posted by: Sulaiman Syed
access, CCNP, Cisco, ip, list, map, network, route, subnet

IP prefix list mostly used with route filtering in IGP (OSPF, IS-IS, EIGRP) and EGP (BGP) protocols. At first sight, the command will look confusing, but it is pretty simple and straight forward. Prefix list can be used with route map, and they would be referred...


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...


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