HSRP with VLANS

HSRP is Hot Standby Router Protocol, it is a protocol which provide redundancy in between the paths. Here the topology given below is made on GNS3, in which this HSRP protocol is providing redundancy between the vlans paths. On DSw1 and DSw2 vlans (10,20,30,40,50,60,70,80,90,100) are created with HSRP redundancy. Switch DSw1-3 , CSw1-2 are Layer 3 switches and ASw1-4 switches are Layer 2. Among Layer 3 switches OSPF routing is running. Both DSw1 and DSw2 switches have connectivity with all layer 2 switches, when one of the connection of layer 2 switch got down/cut form one layer 3 switch then other switch automatically provide the support for that layer 2  switch.
GNS3 is a simulator so all the commands are not running on these switches. I used 3725 IOS image for the switch.

Configuration of Topology :- Config.zip 

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