07-18-2017 02:53 AM
Hi all,
On the following firmware updated switch:
SG300-28MP 28-Port Gigabit PoE Managed Switch - L2 Mode |
|
1.4.7.6 | |
36b9386217cd2a45e8127cbaf0fd221d | |
1.3.5.58 | |
482fea5c6731bc9d2739fcea78235720 | |
1.3.5.06 |
I get this (false?) RMON ALERT sometimes:
Jul 18 09:14:49 SWCisco RMON %RMON-I-rmonRisingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=64 Rising Delta Actual(65536) Thr.set(10) Interval(10)
Jul 18 09:14:59 SWCisco RMON %RMON-I-rmonFallingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=64 Falling Delta Actual(0) Thr.set(20) Interval(10)
As can be seen on threshold-intervals this happens in less than 10 seconds and being 65536 a 2^16 (max value unsigned int16) makes me think about a bug.
Interface stats:
Interface | Bytes Received |
Drop Events |
Packets Received |
Broadcast Packets Received |
Multicast Packets Received |
CRC & Align Errors |
Undersize Packets |
Oversize Packets |
Fragments | Jabbers | Collisions | Frames of 64 Bytes |
Frames of 65 to 127 Bytes |
Frames of 128 to 255 Bytes |
Frames of 256 to 511 Bytes |
Frames of 512 to 1023 Bytes |
Frames of 1024 Bytes or More |
||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
GE1 | 65813374 | 0 | 734930 | 2710 | 28492 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 693329 | 35379 | 264 | 5909 | 49 | ||
GE2 | 36114821 | 0 | 364557 | 2775 | 28491 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 328571 | 30037 | 124 | 5803 | 22 | ||
GE3 | 1671144930 | 0 | 8751407 | 25977 | 41504 | 0 | 0 | 0 | 0 | 0 | 0 | 2559976 | 4272346 | 968482 | 344552 | 127160 | 478891 | ||
GE4 | 178814721 | 0 | 849170 | 1604 | 28471 | 0 | 0 | 0 | 0 | 0 | 0 | 103036 | 15242 | 707380 | 428 | 22947 | 137 | ||
GE5 | 10903876 | 0 | 109421 | 1687 | 8 | 0 | 0 | 0 | 0 | 0 | 0 | 93834 | 9870 | 1 | 11 | 5703 | 2 | ||
GE6 | 2621131208 | 0 | 9755616 | 29701 | 13649 | 0 | 0 | 0 | 0 | 0 | 0 | 1784308 | 4234775 | 1945946 | 672733 | 147295 | 970559 | ||
GE7 | 714902726 | 0 | 16093503 | 347417 | 2866 | 0 | 0 | 0 | 0 | 0 | 0 | 3370267 | 9499337 | 269101 | 165252 | 160452 | 2629094 | ||
GE8 | 3208659740 | 0 | 2777431168 | 9884 | 53 | 0 | 0 | 0 | 0 | 0 | 0 | 91006496 | 12467903 | 28379810 | 6243768 | 8380550 | 2630952641 | ||
GE9 | 2777467199 | 0 | 13898937 | 341587 | 4849 | 0 | 0 | 0 | 0 | 0 | 0 | 2354944 | 4752125 | 4505736 | 1841614 | 44117 | 400401 | ||
GE10 | 3865733911 | 0 | 151175314 | 130863 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 53032774 | 4321957 | 2902301 | 1522835 | 2058284 | 87337163 | ||
GE11 | 10314468 | 0 | 103143 | 1756 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 92994 | 4436 | 1 | 10 | 5699 | 3 | ||
GE12 | 60375884 | 0 | 112521310 | 1901980 | 37937770 | 0 | 0 | 0 | 0 | 0 | 0 | 34088678 | 44662691 | 6415530 | 2976526 | 2152888 | 22224997 | ||
GE13 | 47670045 | 0 | 158260205 | 313805 | 1308352 | 0 | 0 | 0 | 0 | 0 | 0 | 24426923 | 25775233 | 5384256 | 2665521 | 3115106 | 96893166 | ||
GE14 | 3027069114 | 0 | 45914168 | 185184 | 880074 | 0 | 0 | 0 | 0 | 0 | 0 | 17351077 | 19676254 | 4171541 | 1927845 | 1347035 | 1440416 | ||
GE15 | 2568996061 | 0 | 23678844 | 43709 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 333267 | 20476684 | 1983030 | 158410 | 712217 | 15236 | ||
GE16 | 1205979056 | 0 | 3093176421 | 24483 | 854457 | 0 | 0 | 0 | 0 | 0 | 0 | 1927641051 | 277409689 | 261735808 | 355611 | 2919314 | 623114948 | ||
GE17 | 1198062219 | 0 | 7160390 | 32395 | 7470 | 0 | 0 | 0 | 0 | 0 | 0 | 2596737 | 3227443 | 772331 | 191715 | 49411 | 322753 | ||
GE18 | 1424861356 | 0 | 6347197 | 50720 | 2971 | 0 | 0 | 0 | 0 | 0 | 0 | 1931902 | 2524580 | 826235 | 353536 | 304666 | 406278 | ||
GE19 | 3605780802 | 0 | 9993305 | 1 | 69651 | 0 | 0 | 0 | 0 | 0 | 0 | 1907929 | 2036706 | 457020 | 441874 | 354157 | 4795619 | ||
GE20 | 3494925529 | 0 | 2604664633 | 85429 | 28 | 0 | 0 | 0 | 0 | 0 | 0 | 19707102 | 168612481 | 164826088 | 2086298 | 4190788 | 2245241876 | ||
GE21 | 89550053 | 0 | 727971 | 646 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 565608 | 87292 | 19463 | 29386 | 5 | 26217 | ||
GE22 | 719323027 | 0 | 1275873111 | 22552 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6930202 | 39819477 | 108666346 | 3061135 | 2266940 | 1115129011 | ||
GE23 | 1636682347 | 0 | 6684456 | 55502 | 41262 | 0 | 0 | 0 | 0 | 0 | 0 | 2842229 | 1242138 | 1398303 | 373681 | 347357 | 480748 | ||
GE24 | 1065931196 | 0 | 230386278 | 11788247 | 53360443 | 0 | 0 | 0 | 0 | 0 | 0 | 120078560 | 69658482 | 22984536 | 8709823 | 3388816 | 5566061 | ||
GE25 | 1765281339 | 0 | 1157096462 | 368311 | 70021 | 0 | 0 | 0 | 0 | 0 | 0 | 623830556 | 206480195 | 168839399 | 48140373 | 15204088 | 1475741615 | ||
GE26 | 9334353 | 0 | 44859 | 18602 | 25348 | 0 | 0 | 0 | 0 | 0 | 0 | 936526667 | 267906508 | 251125870 | 26589600 | 15403643 | 2332888139 | ||
GE27 | 1339728140 | 0 | 61793644 | 926968 | 300834 | 0 | 0 | 0 | 0 | 0 | 0 | 41411659 | 97690958 | 20673174 | 6610345 | 3834229 | 27299084 | ||
GE28 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Interface | Bytes Received |
Drop Events |
Packets Received |
Broadcast Packets Received |
Multicast Packets Received |
CRC & Align Errors |
Undersize Packets |
Oversize Packets |
Fragments | Jabbers | Collisions | Frames of 64 Bytes |
Frames of 65 to 127 Bytes |
Frames of 128 to 255 Bytes |
Frames of 256 to 511 Bytes |
Frames of 512 to 1023 Bytes |
Frames of 1024 Bytes or More |
||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
LAG 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||
LAG 2 | 2435206031 | 0 | 1113218872 | 442765 | 72598 | 0 | 0 | 0 | 0 | 0 | 0 | 115992420 | 192617258 | 193933177 | 8937696 | 13086266 | 588652055 | ||
LAG 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||
LAG 4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||
LAG 5 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||
LAG 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||
LAG 7 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | ||
LAG 8 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
0 |
Event Entry No. | Log No. | Log Time | Description |
---|---|---|---|
1 | 51 | 2017-Jul-11 20:38:20 | MIB Var.: 1.3.6.1.2.1.16.1.1.1.8.62 , Delta , Rising , Actual Val: 65536 , Thresh.Set: 10 , Interval(sec): 10 |
1 | 52 | 2017-Jul-11 20:38:30 | MIB Var.: 1.3.6.1.2.1.16.1.1.1.8.62 , Delta , Falling , Actual Val: 0 , Thresh.Set: 20 , Interval(sec): 10 |
1 | 53 | 2017-Jul-12 08:37:40 | MIB Var.: 1.3.6.1.2.1.16.1.1.1.8.64 , Delta , Rising , Actual Val: 65536 , Thresh.Set: 10 , Interval(sec): 10 |
1 | 54 | 2017-Jul-12 08:37:50 | MIB Var.: 1.3.6.1.2.1.16.1.1.1.8.64 , Delta , Falling , Actual Val: 0 , Thresh.Set: 20 , Interval(sec): 10 |
1 | 55 | 2017-Jul-13 13:27:20 | MIB Var.: 1.3.6.1.2.1.16.1.1.1.8.62 , Delta , Rising , Actual Val: 65536 , Thresh.Set: 10 , Interval(sec): 10 |
1 | 56 | 2017-Jul-13 13:27:30 | MIB Var.: 1.3.6.1.2.1.16.1.1.1.8.62 , Delta , Falling , Actual Val: 0 , Thresh.Set: 20 , Interval(sec): 10 |
1 | 57 | 2017-Jul-13 21:02:05 | MIB Var.: 1.3.6.1.2.1.16.1.1.1.8.64 , Delta , Rising , Actual Val: 65536 , Thresh.Set: 10 , Interval(sec): 10 |
1 | 58 | 2017-Jul-13 21:02:15 | MIB Var.: 1.3.6.1.2.1.16.1.1.1.8.64 , Delta , Falling , Actual Val: 0 , Thresh.Set: 20 , Interval(sec): 10 |
1 | 59 | 2017-Jul-14 07:41:30 | MIB Var.: 1.3.6.1.2.1.16.1.1.1.8.61 , Delta , Rising , Actual Val: 65536 , Thresh.Set: 10 , Interval(sec): 10 |
1 | 60 | 2017-Jul-14 07:41:40 | MIB Var.: 1.3.6.1.2.1.16.1.1.1.8.61 , Delta , Falling , Actual Val: 0 , Thresh.Set: 20 , Interval(sec): 10 |
1 | 61 | 2017-Jul-14 15:17:45 | MIB Var.: 1.3.6.1.2.1.16.1.1.1.8.62 , Delta , Rising , Actual Val: 65536 , Thresh.Set: 10 , Interval(sec): 10 |
1 | 62 | 2017-Jul-14 15:17:55 | MIB Var.: 1.3.6.1.2.1.16.1.1.1.8.62 , Delta , Falling , Actual Val: 0 , Thresh.Set: 20 , Interval(sec): 10 |
1 | 63 | 2017-Jul-14 19:17:40 | MIB Var.: 1.3.6.1.2.1.16.1.1.1.8.61 , Delta , Rising , Actual Val: 196608 , Thresh.Set: 10 , Interval(sec): 10 |
1 | 64 | 2017-Jul-14 19:18:30 | MIB Var.: 1.3.6.1.2.1.16.1.1.1.8.61 , Delta , Falling , Actual Val: 0 , Thresh.Set: 20 , Interval(sec): 10 |
1 | 65 | 2017-Jul-15 09:26:00 | MIB Var.: 1.3.6.1.2.1.16.1.1.1.8.64 , Delta , Rising , Actual Val: 65536 , Thresh.Set: 10 , Interval(sec): 10 |
1 | 66 | 2017-Jul-15 09:26:10 | MIB Var.: 1.3.6.1.2.1.16.1.1.1.8.64 , Delta , Falling , Actual Val: 0 , Thresh.Set: 20 , Interval(sec): 10 |
1 | 67 | 2017-Jul-16 21:50:35 | MIB Var.: 1.3.6.1.2.1.16.1.1.1.8.64 , Delta , Rising , Actual Val: 65536 , Thresh.Set: 10 , Interval(sec): 10 |
1 | 68 | 2017-Jul-16 21:50:45 | MIB Var.: 1.3.6.1.2.1.16.1.1.1.8.64 , Delta , Falling , Actual Val: 0 , Thresh.Set: 20 , Interval(sec): 10 |
1 | 69 | 2017-Jul-17 12:49:10 | MIB Var.: 1.3.6.1.2.1.16.1.1.1.8.62 , Delta , Rising , Actual Val: 65536 , Thresh.Set: 10 , Interval(sec): 10 |
1 | 70 | 2017-Jul-17 12:49:20 | MIB Var.: 1.3.6.1.2.1.16.1.1.1.8.62 , Delta , Falling , Actual Val: 0 , Thresh.Set: 20 , Interval(sec): 10 |
1 | 71 | 2017-Jul-18 10:14:50 | MIB Var.: 1.3.6.1.2.1.16.1.1.1.8.64 , Delta , Rising , Actual Val: 65536 , Thresh.Set: 10 , Interval(sec): 10 |
1 | 72 | 2017-Jul-18 10:15:00 | MIB Var.: 1.3.6.1.2.1.16.1.1.1.8.64 , Delta , Falling , Actual Val: 0 , Thresh.Set: 20 , Interval(sec): 10 |
Alarm Entry No. |
Interface | Counter Name | Counter Value |
Sample Type | Rising Threshold |
Rising Event | Falling Threshold |
Falling Event | Startup Alarm | Interval (sec) |
Owner | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
1 | GE14 | Frame Check Sequence (FCS) Errors | 0 | Delta | 10 | desc1 | 20 | desc1 | Rising and Falling | 10 | yo | |
2 | GE13 | Frame Check Sequence (FCS) Errors | 0 | Delta | 10 | desc1 | 20 | desc1 | Rising and Falling | 10 | yo | |
3 | GE16 | Frame Check Sequence (FCS) Errors | 0 | Delta | 10 | desc1 | 20 | desc1 | Rising and Falling | 10 | yo | |
4 | GE13 | RMON Drop Events | 0 | Delta | 10 | desc1 | 20 | desc1 | Rising and Falling | 10 | yo | |
5 | GE14 | RMON Drop Events | 0 | Delta | 10 | desc1 | 20 | desc1 | Rising and Falling | 10 | yo | |
6 | GE16 | RMON Drop Events | 0 | Delta | 10 | desc1 | 20 | desc1 | Rising and Falling | 10 | yo | |
7 | GE13 | RMON Collisions | 0 | Delta | 10 | desc1 | 20 | desc1 | Rising and Falling | 10 | yo | |
8 | GE14 | RMON Collisions | 0 | Delta | 10 | desc1 | 20 | desc1 | Rising and Falling | 10 | yo | |
9 | GE16 | RMON Collisions | 0 | Delta | 10 | desc1 | 20 | desc1 | Rising and Falling | 10 | yo | |
10 | GE13 | RMON CRC&Align Errors | 0 | Delta | 10 | desc1 | 20 | desc1 | Rising and Falling | 10 | yo | |
11 | GE14 | RMON CRC&Align Errors | 0 | Delta | 10 | desc1 | 20 | desc1 | Rising and Falling | 10 | yo | |
12 | GE16 | RMON CRC&Align Errors | 0 | Delta | 10 | desc1 | 20 | desc1 | Rising and Falling | 10 | yo |
Any clue why this happens?
Thank you!
PD: etherStatsIndex=64 is interface GE16, it's a bit annoying to substract 48 to know the IF, not sure why on a fixed config switch if numbers do not correlate on a 1 by 1.
07-24-2017 07:00 AM
No community interest?
Not even Cisco?
07-26-2017 01:45 PM
Hello,
I hope you are doing well, my name is Jonathan and I am part of Small business here at Cisco.
I apologize for any inconvenience with the unit. I will be trying to check if this is part of a bug or not, please let me know.
Are you experiencing any issues physically or with the performance on the unit?
can you share the topology that you have?
I would recommend to open a case with our department so that we can troubleshoot the unit in a better way.
Thanks.
https://supportforums.cisco.com/community/4626/small-business-service-and-support-country
07-27-2017 04:14 AM
Hi Jonathan,
Thank you for your time, the reason to write here and not opening a case is that apparently error has no consequences (hence there considering it just a 'reporting bug').
> Are you experiencing any issues physically or with the performance on the unit?
I can not see any issues at the moment it happens.
> can you share the topology that you have?
Topology is relatively simple:
- This unit is the main one (STP root) and connects directly to servers and acts as Switch backbones. There is only one VLAN, and a LAG to a server.
- It connects to 4 TP-LINK SG3424 switches and few small dumb SW+AP
- The 3 links presenting this alert (other ports don't have RMON enabled) are important ones as they connect to: near Draytek router, remote backup and remote main phone call attendant (with a dumb SW+AP).
Do you need any exact detail?
> I would recommend to open a case with our department so that we can troubleshoot the unit in a better way.
As it doesn't look so bad, let's try to diagnose it a bit on the forum and decide after.
PD: I'm about to pass CCNA exam and I did a CCNP Master, feel free to ask anything you need!
08-03-2017 03:26 AM
Hi Jonathan,
All this started months ago when I saw (on the 10 year old Linksys gigabit 24 port switches, currently replaced by the TPLINK) some etherStatsDropEvents on some ports.
I replaced those switches and some of those connections stopped showing errors.
Since last message I added same RMON alarms to all interfaces, and some of them show similar problem:
Jul 28 09:09:28 SWCisco RMON %RMON-I-rmonRisingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=72 Rising Delta Actual(65536) Thr.set(10) Interval(10) |
Jul 28 12:17:49 SWCisco RMON %RMON-I-rmonRisingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=51 Rising Delta Actual(65536) Thr.set(10) Interval(10) |
Jul 28 13:36:34 SWCisco RMON %RMON-I-rmonRisingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=62 Rising Delta Actual(65536) Thr.set(10) Interval(10) |
Jul 29 00:05:04 SWCisco RMON %RMON-I-rmonRisingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=64 Rising Delta Actual(65536) Thr.set(10) Interval(10) |
Jul 30 01:10:50 SWCisco RMON %RMON-I-rmonRisingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=60 Rising Delta Actual(65536) Thr.set(10) Interval(10) |
Jul 30 12:29:30 SWCisco RMON %RMON-I-rmonRisingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=64 Rising Delta Actual(65536) Thr.set(10) Interval(10) |
Jul 31 08:39:46 SWCisco RMON %RMON-I-rmonRisingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=62 Rising Delta Actual(65536) Thr.set(10) Interval(10) |
Jul 31 09:44:11 SWCisco RMON %RMON-I-rmonRisingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=71 Rising Delta Actual(65536) Thr.set(10) Interval(10) |
Jul 31 16:19:01 SWCisco RMON %RMON-I-rmonRisingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=75 Rising Delta Actual(65536) Thr.set(10) Interval(10) |
Aug 1 00:53:56 SWCisco RMON %RMON-I-rmonRisingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=64 Rising Delta Actual(65536) Thr.set(10) Interval(10) |
Aug 1 08:36:02 SWCisco RMON %RMON-I-rmonRisingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=62 Rising Delta Actual(65536) Thr.set(10) Interval(10) |
Aug 1 09:13:37 SWCisco RMON %RMON-I-rmonRisingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=61 Rising Delta Actual(65536) Thr.set(10) Interval(10) |
Aug 1 15:43:22 SWCisco RMON %RMON-I-rmonRisingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=72 Rising Delta Actual(65536) Thr.set(10) Interval(10) |
Aug 2 09:00:23 SWCisco RMON %RMON-I-rmonRisingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=62 Rising Delta Actual(65536) Thr.set(10) Interval(10) |
Aug 2 13:18:13 SWCisco RMON %RMON-I-rmonRisingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=64 Rising Delta Actual(65536) Thr.set(10) Interval(10) |
Aug 2 15:40:58 SWCisco RMON %RMON-I-rmonRisingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=60 Rising Delta Actual(65536) Thr.set(10) Interval(10) |
Aug 3 10:43:29 SWCisco RMON %RMON-I-rmonRisingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=62 Rising Delta Actual(65536) Thr.set(10) Interval(10) |
Does this help you to point in some direction?
(On the mean time I will add RMON alarms to tp-link interfaces)
09-12-2017 07:17 AM - edited 09-12-2017 07:17 AM
A Linux monitoring all traffic via SPAN ports for VoIP shows those messages, some seem related to this problem:
[Tue Sep 12 07:24:46 2017] UDP: bad checksum. From 192.168.5.124:50251 to 255.255.255.255:15000 ulen 58
[Tue Sep 12 07:46:50 2017] UDP: bad checksum. From 192.168.5.139:64306 to 255.255.255.255:15000 ulen 58
[Tue Sep 12 08:27:11 2017] UDP: bad checksum. From 192.168.5.69:63142 to 255.255.255.255:15000 ulen 58
[Tue Sep 12 09:24:46 2017] UDP: bad checksum. From 192.168.5.124:54909 to 255.255.255.255:15000 ulen 58
[Tue Sep 12 09:46:50 2017] UDP: bad checksum. From 192.168.5.139:52126 to 255.255.255.255:15000 ulen 58
[Tue Sep 12 10:13:55 2017] UDP: bad checksum. From 192.168.5.148:61666 to 255.255.255.255:15000 ulen 58
[Tue Sep 12 10:27:11 2017] UDP: bad checksum. From 192.168.5.69:57259 to 255.255.255.255:15000 ulen 58
[Tue Sep 12 11:24:46 2017] UDP: bad checksum. From 192.168.5.124:61607 to 255.255.255.255:15000 ulen 58
[Tue Sep 12 11:46:51 2017] UDP: bad checksum. From 192.168.5.139:54413 to 255.255.255.255:15000 ulen 58
[Tue Sep 12 12:13:56 2017] UDP: bad checksum. From 192.168.5.148:55288 to 255.255.255.255:15000 ulen 58
[Tue Sep 12 12:27:12 2017] UDP: bad checksum. From 192.168.5.69:51601 to 255.255.255.255:15000 ulen 58
[Tue Sep 12 12:58:58 2017] UDP: bad checksum. From 192.168.5.69:64899 to 255.255.255.255:7000 ulen 59
[Tue Sep 12 13:24:47 2017] UDP: bad checksum. From 192.168.5.124:59821 to 255.255.255.255:15000 ulen 58
[Tue Sep 12 13:35:59 2017] UDP: bad checksum. From 192.168.5.139:64433 to 255.255.255.255:7000 ulen 65
[Tue Sep 12 13:46:51 2017] UDP: bad checksum. From 192.168.5.139:55238 to 255.255.255.255:15000 ulen 58
[Tue Sep 12 14:13:56 2017] UDP: bad checksum. From 192.168.5.148:58383 to 255.255.255.255:15000 ulen 58
[Tue Sep 12 14:27:12 2017] UDP: bad checksum. From 192.168.5.69:62121 to 255.255.255.255:15000 ulen 58
UDP port 15.000 is being used by kaspersky network agent.
Only shown on ports with new Lenovo computers.
It could be a network driver issue, I will update them and keep this thread updated.
Throught anyway it's weird switch complains about 65.536 errors only by 1 packet.
09-18-2017 06:39 AM
Looking for a non-related problem I cleared statistics and this showed up:
Rising Delta Actual(2147221505) (bin=111 1111 1111 1100 0000 0000 0000 0001)
Not clue why such high value, but doesn't surprise me the delta substraction gives a weird number if it's not prepared for variables sizes of 32 or 64 bit.
Let's see if this still happens....
Sep 18 14:30:26 SWCisco RMON %RMON-I-rmonRisingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=61 Rising Delta Actual(2147221505) Thr.set(10) Interval(10)
Sep 18 14:30:26 SWCisco RMON %RMON-I-rmonRisingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=62 Rising Delta Actual(2146500609) Thr.set(10) Interval(10)
Sep 18 14:30:26 SWCisco RMON %RMON-I-rmonRisingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=64 Rising Delta Actual(2146369537) Thr.set(10) Interval(10)
Sep 18 14:30:26 SWCisco RMON %RMON-I-rmonRisingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=72 Rising Delta Actual(2147221505) Thr.set(10) Interval(10)
Sep 18 14:30:26 SWCisco RMON %RMON-I-rmonRisingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=75 Rising Delta Actual(2147155969) Thr.set(10) Interval(10)
Sep 18 14:30:26 SWCisco RMON %RMON-I-rmonRisingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=56 Rising Delta Actual(2147418113) Thr.set(10) Interval(10)
Sep 18 14:30:26 SWCisco RMON %RMON-I-rmonRisingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=60 Rising Delta Actual(2147024897) Thr.set(10) Interval(10)
Sep 18 14:30:36 SWCisco RMON %RMON-I-rmonFallingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=61 Falling Delta Actual(0) Thr.set(20) Interval(10)
Sep 18 14:30:36 SWCisco RMON %RMON-I-rmonFallingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=62 Falling Delta Actual(0) Thr.set(20) Interval(10)
Sep 18 14:30:36 SWCisco RMON %RMON-I-rmonFallingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=64 Falling Delta Actual(0) Thr.set(20) Interval(10)
Sep 18 14:30:36 SWCisco RMON %RMON-I-rmonFallingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=72 Falling Delta Actual(0) Thr.set(20) Interval(10)
Sep 18 14:30:36 SWCisco RMON %RMON-I-rmonFallingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=75 Falling Delta Actual(0) Thr.set(20) Interval(10)
Sep 18 14:30:36 SWCisco RMON %RMON-I-rmonFallingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=56 Falling Delta Actual(0) Thr.set(20) Interval(10)
Sep 18 14:30:36 SWCisco RMON %RMON-I-rmonFallingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=60 Falling Delta Actual(0) Thr.set(20) Interval(10)
09-20-2017 07:10 AM
Not related.
Disabling UDP CRC offload on the network driver (already MS supported latest version, Realtek latest version also suffers this) stopped sending those UDP packets.
But Switch still shows those CRC Align errors...
09-20-2017 07:13 AM
Two days later I cleared port statistics and we have that delta high values again:
Sep 20 03:22:39 SWCisco RMON %RMON-I-rmonRisingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=64 Rising Delta Actual(65536) Thr.set(10) Interval(10)
Sep 20 03:22:49 SWCisco RMON %RMON-I-rmonFallingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=64 Falling Delta Actual(0) Thr.set(20) Interval(10)
Sep 20 07:32:34 SWCisco RMON %RMON-I-rmonRisingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=62 Rising Delta Actual(65536) Thr.set(10) Interval(10)
Sep 20 07:32:44 SWCisco RMON %RMON-I-rmonFallingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=62 Falling Delta Actual(0) Thr.set(20) Interval(10)
Sep 20 13:48:45 SWCisco RMON %RMON-I-rmonRisingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=60 Rising Delta Actual(65536) Thr.set(10) Interval(10)
Sep 20 13:48:55 SWCisco RMON %RMON-I-rmonFallingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=60 Falling Delta Actual(0) Thr.set(20) Interval(10)
Sep 20 15:05:09 SWCisco RMON %RMON-I-rmonRisingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=62 Rising Delta Actual(2147418113) Thr.set(10) Interval(10)
Sep 20 15:05:10 SWCisco RMON %RMON-I-rmonRisingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=64 Rising Delta Actual(2147418113) Thr.set(10) Interval(10)
Sep 20 15:05:10 SWCisco RMON %RMON-I-rmonRisingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=60 Rising Delta Actual(2147418113) Thr.set(10) Interval(10)
Sep 20 15:05:19 SWCisco RMON %RMON-I-rmonFallingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=62 Falling Delta Actual(0) Thr.set(20) Interval(10)
Sep 20 15:05:20 SWCisco RMON %RMON-I-rmonFallingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=64 Falling Delta Actual(0) Thr.set(20) Interval(10)
Sep 20 15:05:20 SWCisco RMON %RMON-I-rmonFallingAlarm: etherStatsTable, etherStatsCRCAlignErrors, etherStatsIndex=60 Falling Delta Actual(0) Thr.set(20) Interval(10)
08-17-2018 03:16 AM
Just to keep updated, one year later everything is still happening.
Anyway everything seems to work well.
Maybe new latest firmware would solve it but as I'm not anymore on that company... not sure if they will ever update and verify it.
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