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Input queue drops on 6724-sfp
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07-08-2010 10:01 AM - edited 03-06-2019 11:57 AM
Hi all,
I'm having a bit of a problem on an etherchannel between 2 6509-Es running 6724 cards. I'm seeing input drops under light traffic on both member physical interfaces (gig-E 1000-SX), but no indication of physical errors. There is currently no QoS configuration on either switch. All member ports on both switches are configured as trunks, PaGP desirable non-silent. All cards are almost empty, so no concern of oversubscription.
Thanks in advance.
Port stats:
GigabitEthernet7/12 is up, line protocol is up (connected)
Hardware is C6k 1000Mb 802.3, address is 0017.951a.8777 (bia 0017.951a.8777)
Description: tcoc306sw_x-connect
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 2/255, rxload 5/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 1000Mb/s, media type is SX
input flow-control is off, output flow-control is off
Clock mode is auto
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:10, output 00:00:02, output hang never
Last clearing of "show interface" counters 5w0d
Input queue: 0/2000/15812289/0 (size/max/drops/flushes); Total output drops: 5125
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 23010000 bits/sec, 5950 packets/sec
5 minute output rate 8865000 bits/sec, 3592 packets/sec
43998796840 packets input, 51574357321403 bytes, 0 no buffer
Received 30664501 broadcasts (20257426 multicasts)
0 runts, 0 giants, 0 throttles
15812289 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
0 input packets with dribble condition detected
26494177579 packets output, 5677668788511 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
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
GigabitEthernet8/12 is up, line protocol is up (connected)
Hardware is C6k 1000Mb 802.3, address is 000a.b80f.7c1b (bia 000a.b80f.7c1b)
Description: tcoc306sw_x-connect
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 6/255, rxload 6/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 1000Mb/s, media type is SX
input flow-control is off, output flow-control is off
Clock mode is auto
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:04, output 00:00:20, output hang never
Last clearing of "show interface" counters 5w0d
Input queue: 0/2000/3003701/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 26846000 bits/sec, 7646 packets/sec
5 minute output rate 26321000 bits/sec, 6767 packets/sec
82049890984 packets input, 85974421941108 bytes, 0 no buffer
Received 26645426 broadcasts (18924453 multicasts)
0 runts, 0 giants, 0 throttles
3003701 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
0 input packets with dribble condition detected
55504334005 packets output, 17651416231314 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
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
sh counters interface gi7/12
64 bit counters:
0. rxHCTotalPkts = 867576310336
1. txHCTotalPkts = 498927272774
2. rxHCUnicastPkts = 866895165652
3. txHCUnicastPkts = 497236583163
4. rxHCMulticastPkts = 353583254
5. txHCMulticastPkts = 876450873
6. rxHCBroadcastPkts = 327561430
7. txHCBroadcastPkts = 814238738
8. rxHCOctets = 1118144527979616
9. txHCOctets = 85926341406063
10. rxTxHCPkts64Octets = 7781095
11. rxTxHCPkts65to127Octets = 492815865646
12. rxTxHCPkts128to255Octets = 45334962366
13. rxTxHCPkts256to511Octets = 23896526068
14. rxTxHCpkts512to1023Octets = 81964975357
15. rxTxHCpkts1024to1518Octets = 19347451021
16. txHCTrunkFrames = 498895208820
17. rxHCTrunkFrames = 867564826247
18. rxHCDropEvents = 0
32 bit counters:
0. rxCRCAlignErrors = 0
1. rxUndersizedPkts = 0
2. rxOversizedPkts = 0
3. rxFragmentPkts = 0
4. rxJabbers = 0
5. txCollisions = 0
6. ifInErrors = 80881303
7. ifOutErrors = 0
8. ifInDiscards = 80881534
9. ifInUnknownProtos = 0
10. ifOutDiscards = 53062
11. txDelayExceededDiscards = 0
12. txCRC = 0
13. linkChange = 15
14. wrongEncapFrames = 0
All Port Counters
1. InPackets = 867576285687
2. InOctets = 1118144515582115
3. InUcastPkts = 866895141041
4. InMcastPkts = 353583229
5. InBcastPkts = 327561418
6. OutPackets = 498927258925
7. OutOctets = 85926337523697
8. OutUcastPkts = 497236569479
9. OutMcastPkts = 876450769
10. OutBcastPkts = 814238677
11. AlignErr = 0
12. FCSErr = 0
13. XmitErr = 0
14. RcvErr = 80881274
15. UnderSize = 0
16. SingleCol = 0
17. MultiCol = 0
18. LateCol = 0
19. ExcessiveCol = 0
20. CarrierSense = 0
21. Runts = 0
22. Giants = 0
23. InDiscards = 80881505
24. OutDiscards = 53062
25. InErrors = 80881274
26. OutErrors = 0
27. InUnknownProtos = 0
28. txCRC = 0
29. TrunkFramesTx = 498895194974
30. TrunkFramesRx = 867564801600
31. WrongEncap = 0
32. Broadcast_suppression_discards = 0
33. Multicast_suppression_discards = 0
34. Unicast_suppression_discards = 0
35. rxTxHCPkts64Octets = 7781095
36. rxTxHCPkts65to127Octets = 492815845997
37. rxTxHCPkts128to255Octets = 45334957435
38. rxTxHCPkts256to511Octets = 23896523964
39. rxTxHCpkts512to1023Octets = 81964969945
40. rxTxHCpkts1024to1518Octets = 19347449413
41. DropEvents = 0
42. CRCAlignErrors = 0
43. UndersizedPkts = 0
44. OversizedPkts = 0
45. FragmentPkts = 0
46. Jabbers = 0
47. Collisions = 0
48. DelayExceededDiscards = 0
49. bpduOutlost = 0
50. qos0Outlost = 53062
51. qos1Outlost = 0
52. qos2Outlost = 0
53. qos3Outlost = 0
54. qos4Outlost = 0
55. qos5Outlost = 0
56. qos6Outlost = 0
57. qos7Outlost = 0
58. qos8Outlost = 0
59. qos9Outlost = 0
60. qos10Outlost = 0
61. qos11Outlost = 0
62. qos12Outlost = 0
63. qos13Outlost = 0
64. qos14Outlost = 0
65. qos15Outlost = 0
66. qos16Outlost = 0
67. qos17Outlost = 0
68. qos18Outlost = 0
69. qos19Outlost = 0
70. qos20Outlost = 0
71. qos21Outlost = 0
72. qos22Outlost = 0
73. qos23Outlost = 0
74. qos24Outlost = 0
75. qos25Outlost = 0
76. qos26Outlost = 0
77. qos27Outlost = 0
78. qos28Outlost = 0
79. qos29Outlost = 0
80. qos30Outlost = 0
81. qos31Outlost = 0
82. bpduCbicOutlost = 0
83. qos0CbicOutlost = 0
84. qos1CbicOutlost = 0
85. qos2CbicOutlost = 0
86. qos3CbicOutlost = 0
87. bpduInlost = 0
88. qos0Inlost = 231
89. qos1Inlost = 0
90. qos2Inlost = 0
91. qos3Inlost = 0
92. qos4Inlost = 0
93. qos5Inlost = 0
94. qos6Inlost = 0
95. qos7Inlost = 0
96. qos8Inlost = 0
97. qos9Inlost = 0
98. qos10Inlost = 0
99. qos11Inlost = 0
100. qos12Inlost = 0
101. qos13Inlost = 0
102. qos14Inlost = 0
103. qos15Inlost = 0
104. pqueInlost = 0
105. Overruns = 231
106. maxIndex = 0
sh counters interface gigabitEthernet 8/12
64 bit counters:
0. rxHCTotalPkts = 1213606943374
1. txHCTotalPkts = 733791352817
2. rxHCUnicastPkts = 1213173514243
3. txHCUnicastPkts = 732826466170
4. rxHCMulticastPkts = 273391150
5. txHCMulticastPkts = 291887309
6. rxHCBroadcastPkts = 160037981
7. txHCBroadcastPkts = 672999338
8. rxHCOctets = 1424144487110281
9. txHCOctets = 161607128944496
10. rxTxHCPkts64Octets = 7781089
11. rxTxHCPkts65to127Octets = 693796116218
12. rxTxHCPkts128to255Octets = 73358612288
13. rxTxHCPkts256to511Octets = 40325855641
14. rxTxHCpkts512to1023Octets = 247507695487
15. rxTxHCpkts1024to1518Octets = 27460113820
16. txHCTrunkFrames = 733779741790
17. rxHCTrunkFrames = 1213595460082
18. rxHCDropEvents = 0
32 bit counters:
0. rxCRCAlignErrors = 0
1. rxUndersizedPkts = 0
2. rxOversizedPkts = 4
3. rxFragmentPkts = 0
4. rxJabbers = 0
5. txCollisions = 0
6. ifInErrors = 87834034
7. ifOutErrors = 0
8. ifInDiscards = 87834242
9. ifInUnknownProtos = 0
10. ifOutDiscards = 11861
11. txDelayExceededDiscards = 0
12. txCRC = 0
13. linkChange = 15
14. wrongEncapFrames = 0
All Port Counters
1. InPackets = 1213606899367
2. InOctets = 1424144462940324
3. InUcastPkts = 1213173470278
4. InMcastPkts = 273391114
5. InBcastPkts = 160037975
6. OutPackets = 733791316379
7. OutOctets = 161607109991137
8. OutUcastPkts = 732826429860
9. OutMcastPkts = 291887278
10. OutBcastPkts = 672999241
11. AlignErr = 0
12. FCSErr = 0
13. XmitErr = 0
14. RcvErr = 87834033
15. UnderSize = 0
16. SingleCol = 0
17. MultiCol = 0
18. LateCol = 0
19. ExcessiveCol = 0
20. CarrierSense = 0
21. Runts = 0
22. Giants = 4
23. InDiscards = 87834241
24. OutDiscards = 11861
25. InErrors = 87834033
26. OutErrors = 0
27. InUnknownProtos = 0
28. txCRC = 0
29. TrunkFramesTx = 733779705353
30. TrunkFramesRx = 1213595416076
31. WrongEncap = 0
32. Broadcast_suppression_discards = 0
33. Multicast_suppression_discards = 0
34. Unicast_suppression_discards = 0
35. rxTxHCPkts64Octets = 7781088
36. rxTxHCPkts65to127Octets = 693796084421
37. rxTxHCPkts128to255Octets = 73358597678
38. rxTxHCPkts256to511Octets = 40325853179
39. rxTxHCpkts512to1023Octets = 247507683606
40. rxTxHCpkts1024to1518Octets = 27460111138
41. DropEvents = 0
42. CRCAlignErrors = 0
43. UndersizedPkts = 0
44. OversizedPkts = 4
45. FragmentPkts = 0
46. Jabbers = 0
47. Collisions = 0
48. DelayExceededDiscards = 0
49. bpduOutlost = 0
50. qos0Outlost = 11861
51. qos1Outlost = 0
52. qos2Outlost = 0
53. qos3Outlost = 0
54. qos4Outlost = 0
55. qos5Outlost = 0
56. qos6Outlost = 0
57. qos7Outlost = 0
58. qos8Outlost = 0
59. qos9Outlost = 0
60. qos10Outlost = 0
61. qos11Outlost = 0
62. qos12Outlost = 0
63. qos13Outlost = 0
64. qos14Outlost = 0
65. qos15Outlost = 0
66. qos16Outlost = 0
67. qos17Outlost = 0
68. qos18Outlost = 0
69. qos19Outlost = 0
70. qos20Outlost = 0
71. qos21Outlost = 0
72. qos22Outlost = 0
73. qos23Outlost = 0
74. qos24Outlost = 0
75. qos25Outlost = 0
76. qos26Outlost = 0
77. qos27Outlost = 0
78. qos28Outlost = 0
79. qos29Outlost = 0
80. qos30Outlost = 0
81. qos31Outlost = 0
82. bpduCbicOutlost = 0
83. qos0CbicOutlost = 0
84. qos1CbicOutlost = 0
85. qos2CbicOutlost = 0
86. qos3CbicOutlost = 0
87. bpduInlost = 0
88. qos0Inlost = 208
89. qos1Inlost = 0
90. qos2Inlost = 0
91. qos3Inlost = 0
92. qos4Inlost = 0
93. qos5Inlost = 0
94. qos6Inlost = 0
95. qos7Inlost = 0
96. qos8Inlost = 0
97. qos9Inlost = 0
98. qos10Inlost = 0
99. qos11Inlost = 0
100. qos12Inlost = 0
101. qos13Inlost = 0
102. qos14Inlost = 0
103. qos15Inlost = 0
104. pqueInlost = 0
105. Overruns = 208
106. maxIndex = 0
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07-08-2010 02:55 PM
Awwwwwwwwwwww ... Don't worry about the input queues. It's the least of your worries. Have you seen amount of input errors accumulated in 5 weeks???
Have you tried changing the SFP modules and/or the patch cords? What is the total end-to-end distance?
GigabitEthernet7/12 is up, line protocol is up (connected)
Hardware is C6k 1000Mb 802.3, address is 0017.951a.8777 (bia 0017.951a.8777)
Description: tcoc306sw_x-connect
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 2/255, rxload 5/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 1000Mb/s, media type is SX
input flow-control is off, output flow-control is off
Clock mode is auto
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:10, output 00:00:02, output hang never
Last clearing of "show interface" counters 5w0d
Input queue: 0/2000/15812289/0 (size/max/drops/flushes); Total output drops: 5125
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 23010000 bits/sec, 5950 packets/sec
5 minute output rate 8865000 bits/sec, 3592 packets/sec
43998796840 packets input, 51574357321403 bytes, 0 no buffer
Received 30664501 broadcasts (20257426 multicasts)
0 runts, 0 giants, 0 throttles
15812289 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
0 input packets with dribble condition detected
26494177579 packets output, 5677668788511 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
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
GigabitEthernet8/12 is up, line protocol is up (connected)
Hardware is C6k 1000Mb 802.3, address is 000a.b80f.7c1b (bia 000a.b80f.7c1b)
Description: tcoc306sw_x-connect
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 6/255, rxload 6/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Full-duplex, 1000Mb/s, media type is SX
input flow-control is off, output flow-control is off
Clock mode is auto
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:04, output 00:00:20, output hang never
Last clearing of "show interface" counters 5w0d
Input queue: 0/2000/3003701/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 26846000 bits/sec, 7646 packets/sec
5 minute output rate 26321000 bits/sec, 6767 packets/sec
82049890984 packets input, 85974421941108 bytes, 0 no buffer
Received 26645426 broadcasts (18924453 multicasts)
0 runts, 0 giants, 0 throttles
3003701 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
0 input packets with dribble condition detected
55504334005 packets output, 17651416231314 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
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
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