HD(0): Input buffer overflow.

[371_qq]

CISCO 2511 router interface seri0 problem

Router#debug seri int

Serial network interface debugging is on

Router#

-5-UPDOWN: Line protocol on Interface Serial0, changed state to down

Serial0: attempting to restart

HD(0): Deasserting DTR and RTS

HD(0): Reset from 0x30286DA

HD(0): Asserting DTR

HD(0): Deasserting LTST

HD(0): Asserting DTR and RTS

Serial0: HDLC myseq 830, mineseen 0*, yourseen 25, line up

-5-UPDOWN: Line protocol on Interface Serial0, changed state to up

serial: decompress error - sending packet to Abort Queue

Serial0 - Keepalive time mismatch - should be 10 secs, is 19

Serial0: HDLC myseq 831, mineseen 831*, yourseen 34, line up

Serial0 - Keepalive time mismatch - should be 10 secs, is 19

Serial0: HDLC myseq 832, mineseen 0*, yourseen 15, line up

HD(0): Input buffer overflow.

Serial0: HDLC myseq 833, mineseen 833*, yourseen 23, line up

Serial0 - Keepalive time mismatch - should be 10 secs, is 20

Serial0: HDLC myseq 834, mineseen 834*, yourseen 30, line up

HD(0): Input buffer overflow.

Serial0: HDLC myseq 836, mineseen 836*, yourseen 45, line up

Serial0 - Keepalive time mismatch - should be 10 secs, is 29

.....

What can I do?

[sur_babu]

can you post your serial config? Try posting the buffer statistics. Are there any queueing configured? Try the default keepalive settings.............. if you have set it manually...........

Good luck........

[371_qq]

Thanks,that's "show int s0" message:

"Router#sh int s0

Serial0 is up, line protocol is up

Hardware is HD64570

Internet address is *.*.*.*/30

MTU 1500 bytes, BW 1544 Kbit, DLY 20000 usec, rely 255/255, load 24/255

Encapsulation HDLC, loopback not set, keepalive set (10 sec)

Last input 00:00:00, output 00:00:00, output hang never

Last clearing of "show interface" counters never

Input queue: 0/75/2232 (size/max/drops); Total output drops: 1116

Queueing strategy: weighted fair

Output queue: 0/1000/64/1116 (size/max total/threshold/drops)

Conversations 0/16/256 (active/max active/max total)

Reserved Conversations 0/0 (allocated/max allocated)

5 minute input rate 1056000 bits/sec, 134 packets/sec

5 minute output rate 146000 bits/sec, 96 packets/sec

6883688 packets input, 1034322262 bytes, 86 no buffer

Received 10165 broadcasts, 0 runts, 0 giants, 0 throttles

1998 input errors, 844 CRC, 0 frame, 574 overrun, 574 ignored, 845 abort

5905634 packets output, 1883454948 bytes, 0 underruns

0 output errors, 0 collisions, 34 interface resets

0 output buffer failures, 0 output buffers swapped out

0 carrier transitions

DCD=up DSR=up DTR=up RTS=up CTS=up

Router#

"