All links have 1Gbps unreserved bandwidth initially and Shared Explicit reservation style is used. After the LSP's primary and standby secondary paths are signaled, how much unreserved bandwidth is left on the links?
A.
R1-R2 will have 300Mbps left and R2-R4 will have 400Mbps left.
B.
R1-R2 will have 400Mbps left and R2-R4 will have 400Mbps left.
C.
R1-R2 will have 600Mbps left and R2-R4 will have 600Mbps left.
D.
R1-R2 will have 300Mbps left and R2-R4 will have 600Mbps left.
The correct answer should be "D". The secondary path is in standby state, so its active. The term "reserved bandwith" is different about "active traffic".
Even if have no active trafic on the secondary path, the standby was configured with a reserv of 300Mb, so will be a reserve of 300Mb for this lsp.
The answer C woul be correct if the secondary path was not standby active. Only in this case the lsp will reserve the traffic wen the path is used, cause it ill be active only when the primary goes down
"C" is correct, the secondary path is configured with the "standby" option. A secondary path configured as standby don't carry any "active" traffic until the primary path fails, hence 600mbs will be left on the links. (1000mbs - 400mbs = 600mbs)
May be C is right. Because LSP2 at stanby state. Anyone have other ideal?
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