first of all thanks for answer

                                           i know design is very poor but because of some reason i can not cange due to some reasons. In this scenario i want to make redundant link plz help me i want to give prefrence to fiber, if fiber goes down microwave link will up and when fiber goes up again traffic shift on fiber. this is the diagram of network.. when fiber goes down the microwave link not up in real it alwasy remain in backup state

You can't have a redundant layer 2 topology without STP. Well, yes you can but then you would have a bridging loop so I definitely do not recommend it.

Why can't you run STP on the Huawei switches?

You could look into the switchport backup interface command if the Cisco supports it. Then it would have primary interface up until it goes down and then bring up the secondary one. When the primary comes back it can switch back to that, you can set a preempt timer so that it does not happen too often.

Daniel Dib
CCIE #37149

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again thans to reply

Actually i am running a small ISP . the huawei switch are my core switch . once i run stp on huawei switch but my all network goes down because my all clients traffic pass through these switch. thats  why i can not afford stp. now i want to cisco switch install on clients and facing  this problem.

waht i do now ?????

If your network goes down when enabling STP there must be some misconfiguration between the devices. Which model are the Huaweis? I want to see what kind of STP they support.

Did you look into using the switchport backup interface feature?

Daniel Dib
CCIE #37149

Please rate helpful posts.