I checked with a show interface and the gi0/1 of the 2960 was 100Mb/s. I had to set the speed in both interface (2960 and 6506) force to be 1000Mb/s. The fact is that suddenly the value changed from 1000Mb/s to 100Mb/s, when both interfaces were in auto . So now with both interfaces forced to be in speed 1000, the Trunk is working well at 1000Mb/s.

I agree with Mike. Typically you would check both ends of the link to see if you would be using AUTO at both ends, or if one end is in AUTO and the other end is hard-coded. 99% of the times a "half-duplex" connection means one end is AUTO while the other is hard-coded.

Full-duplex, 100Mb/s, 100BaseTX/FX . FastEthernet1/0 is up, line protocol is up. MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, Full-duplex, 100Mb/s, 100BaseTX/FX . FastEthernet2/0 is administratively down, line protocol is down. MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, Full-duplex, 100Mb/s, 100BaseTX/FX . R2#show running-config interface ...

thanks for valuable response now m getting picture pls just correct me m right or not u divide the 5 min input rate with 100mb which is fast ethernet speed.so utilization for in and out of interface is less then 1%.as i said you my bandwidth is 256 kb so hom much total BW i …

If you have interfaces faster than 100Mb, then their cost would be rounded up to 1. Now clearly if we have a 1Gb interface, then that has more bandwidth than a 100Mb interface so we change the costs to reflect this, that is we increase the cost of a 100Mb interface and a 10Mb interface so the 1Gb cost reflects that it is a higher bandwidth.

Full-duplex, 100Mb/s, media type is T . So, right here you are trying send traffic from some other switch port (1000Mbps or 100Mbps) to a this G0/1 which is rate limited to only 75Mbps. Going from a higher speed to a much lower speed. This will cause congestion on the lower speed link and result in output drops.

Half-duplex, 100Mb/s, media type is 10/100BaseTX. input flow-control is off, output flow-control is unsupported ---omitted---- The new CCIE OCG does not provide an explanation for the correct answers. The same question has appeared in the earlier version and this is …

Full-duplex, 100Mb/s, media type is 10/100/1000BaseTX. input flow-control is off, output flow-control is unsupported . ARP type: ARPA, ARP Timeout 04:00:00. Last input never, output 00:00:00, output hang never. Last clearing of "show interface" counters never. Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0. Queueing ...

100Mb - half. 10Mb - half. Yes, the default is half duplex (for gigabit, there exists no specification for ...

Now Class D has only 10% bandwidth from the 100MB ,as following : policy-map WAN-CoS. class A. priority percent 20. class B. bandwidth percent 5 . class C. bandwidth percent 30 . class D. bandwidth percent 10