Hi all of you,
Actually this is interview qe? but i did,t do explain it
completely so please give reply recently and completly Ans,
what is sub-interface and inter-vlan ? And How to implement
it on cisco router & switches and also which series router
switches supported please write..........
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Answer Posted / jitendera
hi
This is jitendera here i am trying to give answer hope this will help u
sub interface-sub interface is no thing it is a virtual interface so that on single interface of a router we can assigns multiple ip and it is very important in inter-vlan routing
how we can create it
route(config)interface fa0/0.1
this command is used to make the sub interface
remember the concept of inter vlan routing there u will get the command like
#interface fa0/0.1
#encapsulation dotq/isl 2
#ip address 192.168.100.10 255.255.255.0
#interface fa0/0.2
#encapsulation dotq/isl 3
#ip address 193.168.100.1 255.255.255.0
this is the command for intervlan routing.here what u are looking that on single interface fa0/0 i am putting multiple ip as 192 and 193 series and i can put more
this is the concept of sub interface
i am assuming that u know what is vlan now what is intervaln?
as you know that 2 different vlan can not communicate now i want communication then what will u do
this step is called intervlan
and whole process is called intervlan routing.command i have written above
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