thanks conwyn….i can understand that but when we use different commands to troubleshoot STP there is the main confusion….designated root cost in the output displays the root path cost and it should add path cost after entering other switches, i mean in ur scenario R3 is the root so when we will telnet R1 and type SH SPANTREE it will show root cost as 10, for R2 it will be 0 and for R0 it will be 10…..and the path cost under local bridge detail will always be the same…….am i getting all ths rite???

Grant Money Awarded for Coos Bay Rail Line: American Bridge, Southpo Lumber Company, and Roseburg Forest Product… http://bit.ly/ahy6Tl
King County gets $34M federal grant for South Park Bridge – King County gets $34M federal grant for South Park Bridg… http://ow.ly/19tvx5
Seriously, this is what all the fuss is about with the Stillwater bridge? http://bit.ly/91q7V9 Get a grip, environuts.
For daytime, our other local, Pearl Oyster in Miller St (walk over the tram bridge and keep going, it’s a fun walk) is great.
Tribe expresses concern about uneahing of remains at bridge project site: He said he was working with the Tribe … http://bit.ly/9bHFWw
Keeping it local 2c the game… may head ova bridge 4phillies. We’ll c Skeeter’s Pub) http://4sq.com/bM5me0
If I ever caught an STD I think I would jump off a bridge (the little bridge in the local park that is)
http://bit.ly/bFdxcy Police investigating three-vehicle wreck near local bridge
KLFY: KLFY TV 10 – Acadiana’s Local News, Weather and Spos Leader | Construction begins on La. 42 relief bridge:… http://bit.ly/bvgZDo
Goodwill benefits from Covered Bridge: “Due to the covered bridge fest and the outlying yard sales this helps us f… http://bit.ly/9XDHXL