question about routing

From: Fake Name (fname84@gmail.com)
Date: Thu Oct 09 2008 - 00:18:42 ART


Lan 1 |--R1 ----R2-----R3----R4---R5---| lan 2

If a computer on lan 1 wants to talk to Lan 2 and R1 has a route to Lan 2 it
via R2 then R2 has a route to Lan 2 via R3 and R3 has a route to Lan 2 Via
R4 and R4 has a route to lan 2 vlan R5 then when the traffic returns what is
every router but R3 has a return route to lan 1 but R3 will the traffic be
black holed? If it will be if R3 was a multi layer switch would it go
through because of the multilayer switch cache?

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