Network technologies and trends:

VLAN

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January 18, 2011  11:39 AM

What are Private VLANs (PVLANS)?



Posted by: Yasir Irfan
642-813, CCNP, CCNP Switch, CCNP tips, Cisco CCNP Switch 642-813 certification exam, Cisco Certifications, Cisco Multilayer Switch, Cisco Router, Layer 2, Layer 3, Network environment, PVLANS, Servers, sub-VLAN, VLAN, VLANS, What are private vlans

If you are working hard towards achieving Cisco CCNP Switch 642-813 certification exams, private VLANs does comes into picture. Yeah its part of CCNP Switch 642-813 curriculum.  Cisco basically designed Private VLANs (PVLANS) as part of layer 2 security, in normal condition in any given network...

September 25, 2010  5:07 AM

“Show mac address-table count” a useful Cisco IOS command



Posted by: Yasir Irfan
CAM Table, CCNP SWITCH 642-813, Cisco Catalyst Switch, Cisco IOS command, Cisco Switch tips, Cisco Switches tips, Cisco Tips, Command, hosts, mac address, Network, Show mac address-table count, troubleshooting, VLAN

Suppose you want figure out total number of active MAC Address for each VLAN in Cisco Catalyst Switch, you can figure it out by using a command "Show mac address-table count".  This command can...


September 20, 2010  6:03 AM

“No IP Routing” was the answer



Posted by: Yasir Irfan
Cisco Catalyst 4506, Cisco Catalyst 6513, Cisco Switch configuration, Cisco Switches tips, Cisco tips VTP, HSRP, IOS commands, No IP routing, switches troubleshooting, troubleshooting Cisco Switches, VLAN, VTP, VTP Client

  Recently one of our vendor added couple of new Cisco Catalyst 4506 Series distribution switches to our network for their PACS project.  Those two newly added Cisco 4506 Series distribution switches are connected to our Core Cisco Catalyst 6513Series Switches using a layer 23 uplink ( as a...


September 5, 2009  8:32 PM

Review for Interconnecting Data Centers Using VPLS



Posted by: Yasir Irfan
aggregation switches, Cisco Books reviews, Cisco Press Books, Data Center, interconnect data centers, Interconnecting Data Centers Using VPLS, Interconnecting Data Centers Using VPLS review, MPLS, provider edge routers., Spanning Tree Protocol, STP, Virtual Private LAN Service, VLAN, VPLS

 

Interconnecting Data Centers Using VPLS is a book which aims at providing solutions that provide a high speed, low latency network and...


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