Hi Rene,
thanks a lot for your helpful explanation, I simulated your lab and found something that I need your explanation for it.
when I leaked 8.8.8.8 at R4, R2 calculated the metric of 8.8.8.8 with 168 as below:
R2#sh ip route isis 1
8.0.0.0/32 is subnetted, 1 subnets
i ia 8.8.8.8 [115/168] via 192.168.24.4, 00:14:47, Ethernet0/2
although R4 calculated it with 30 :
R4#sh ip route isis
8.0.0.0/32 is subnetted, 1 subnets
i L2 8.8.8.8 [115/30] via 192.168.47.7, 00:50:55, Ethernet0/1
the metric calculated with 40 at R2 when I configured the metric-style wide on all routers, I need your explanation for this please.
Thanks,
Walid