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New Member

HD(0): Input buffer overflow.

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?

2 REPLIES
New Member

Re: HD(0): Input buffer overflow.

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........

New Member

Re: HD(0): Input buffer overflow.

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#

"

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