we have this old 1841 series router and we change to 1921, i just similarly set the settings same, but only this duplex thing is having problem (i think).
we are supposedly to have 20mbps up&download speed using this 1841, and if we use 1921 20down/ 10upload speed.
when i set gi0/1 to duplex full it goes down down. but if i set duplex to auto, it register as halfduplex and internet will work but only 10mbps upload. see below
igabitEthernet0/1 is up, line protocol is up
Hardware is CN Gigabit Ethernet, address is 0000000
Description: "Connected to Tel"
Internet address is 000000
MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 13/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Half Duplex, 100Mbps, media type is RJ45
output flow-control is unsupported, input flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:00, output 00:00:00, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/14/10242 (size/max/drops/flushes); Total output drops: 79729
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 5400000 bits/sec, 546 packets/sec
5 minute output rate 719000 bits/sec, 390 packets/sec
170608043 packets input, 1963069286 bytes, 79501 no buffer
Received 477 broadcasts (0 IP multicasts)
0 runts, 0 giants, 4 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
160510262 packets output, 1965851816 bytes, 0 underruns
0 output errors, 4095435 collisions, 0 interface resets
0 unknown protocol drops
0 babbles, 0 late collision, 0 deferred
0 lost carrier, 0 no carrier, 0 pause output
0 output buffer failures, 0 output buffers swapped out
i appreciate your feedback and thanks a lot
