Comments on: Why VLANs are Virtually the Coolest LANs

By: links for 2008-02-16 « Where Is All This Leading To?

links for 2008-02-16 « Where Is All This Leading To? — Sat, 16 Feb 2008 00:24:19 +0000

[...] Train Signal Training – Free Computer Training Videos » Blog Archive » Why VLANs are Virtually the Coolest LANs (tags: vlan cisco trainsignal certification networking ccna ccnp) [...]

By: Stelios Antoniou

Stelios Antoniou — Fri, 15 Feb 2008 19:05:31 +0000

VLANs by nature create separate logical networks. They are used to group different types of traffic flows and provide isolation between them (minimize broadcasts). Easier to apply filter and policy rules to them. Also, a firewall is a must when interfacing an untrusted network and not just a simple firewall but a sophisticated one which is able to monitor content traffic and investigate all the way up to the application layer.

MPLS is a different concept… It is a fast switching technology ( for switching IP datagrams without going into the process of routing table lookup) mainly used to forward IP datagrams in large IP networks where real time switching and fast error
recovery is of great importance.

By: Gabe

Gabe — Fri, 15 Feb 2008 17:29:25 +0000

Can you tell me the best way to secure VLANs?
What about MPLS? how secure is? how do you compare that with protecting vlans?

Thanks,

By: Koster

Koster — Fri, 15 Feb 2008 16:04:22 +0000

VLANs are the coolest LANs. It should be noted VLANs are not limited to just Cisco equipment, but all major vendors offer this capability. Over the past few years I’ve seen an increase in the utilization of VLANs with the popularity of VMware ESX.

- Koster