Can anyone explain how this requirement was achivied by the solution guid ?
You are told to base the redistribution metric on R4s connection to VLAN 43 which is Fa0/0. If we look at Fa0/0 with the show interface command we can see the following.
sh int f0/0 | i MTU|load MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, reliability 255/255, txload 1/255, rxload 1/255
So there we basically have all the values. Bandwidth is 100000 for 100 Mbps interface. The delay is 100 usec which is 10 in tens of microseconds. The reliability is 255, load is 1 and the MTU is 1500. So we just use those values in the redistribution metric.
redistribute rip metric 10000 10 255 1 1500
Do you understand now?