point to point T1 serial interfaces with no bandwidth command
Bandwidth = 1544000bps (1.5Mbps)
100000000/1544000 = 64
OSPF Cost = 64
Point to point T1 serial interface with the bandwidth command
Bandwidth = 64000
100000000/64000 = 1562
OSPF Cost = 1562
======================
dist01.lax01#show int ser1/0 | inc BW
MTU 1500 bytes, BW 1544 Kbit/sec, DLY 20000 usec,
dist01.lax01#show ip ospf int ser1/0 | inc Cost
Process ID 100, Router ID 64.100.34.2, Network Type POINT_TO_POINT, Cost: 64
Topology-MTID Cost Disabled Shutdown Topology Name
dist01.lax01#show int ser1/0 | inc BW
MTU 1500 bytes, BW 64 Kbit/sec, DLY 20000 usec,
dist01.lax01#show ip ospf int | inc Cost
Process ID 100, Router ID 64.100.34.2, Network Type POINT_TO_POINT, Cost: 1562
Topology-MTID Cost Disabled Shutdown Topology Name
Billy