Saturday, 30 July 2011

Layer Three Deivice (Router)

The layer three device is router.it's working on layer "network layer".we use router when we wanna create large network means router connect the networt.in market many company making router among that Cisco & juniper & linksys are often widely shown in network.

   
Cisco 2800 integrated router

Friday, 29 July 2011

Vlan Trunking protocole.

Vtp is Vlan Trunkng protocol,it's cisco propritery protocole,with use  of that protole we can add ,delete & edit Vlan in the switch ,when we have more than one switch in our network then ,with use of vtp protocol we can assign VTP on switch in Diffrent mode.

  There are three basic mode of VTP.
1.server mode :- in server mode you can ADD,Edit & delete vlan.

2.Transperent mode:- in  Transparent  switches do not participate in VTP does not advertise & synchronize its VLAN configuration based on received advertisements, but transparent switches do forward VTP advertisements that they receive out their trunk ports in VTP Version 2

3.Client mode :-in Client mode user can not add ,edit & delete Vlan,in this mode switch just accept advertise ment from server mode switch & set it.



 

Vlan Steps & Configuration

 Vlan is very good funda,with the use of vlan we can give sequiry to our lan,with the use  of vlan we can provide sequre our switch port that are in same switch,
in vlan once you create vlan by command ,so once you created Vlan, then you  have to apply that vlan on the switch port,factory default vlan1 & all port in vlan1,when you apply your created vlan to any port then that port can not connect with default Vlan port. this is main in Vlan.only that port transfer data which are in same vlan.

Wednesday, 20 July 2011

Friday, 15 July 2011

Router Command's

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