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Port bandwith limited to 50%

Created: Oct 31, 2019 18:39:25Latest reply: Nov 15, 2019 01:12:33 1514 4 0 0
  Rewarded HiCoins: 0 (problem resolved)

Hello,


I have a S5700 switch installed in one of my POPs, uplink is GE0/0/1 and i deliver a 700mbps circuit in port GE0/0/25 to one of my clients.


Problem is, my client is trying to certify the 700Mbps BW using RFC 2544 device and its getting 490Mbps results.

From the logs i understand that for that kind of test, the switch detects a MAC-FLAP and then lowers the BW of the port to 50% (thats why client gets 490Mbps results)


2019-10-30 06:05.621.2-03:00 can.cane.asw1 %%01SECE/4/UCSUPPRESSRESUME(l)[14]:MAC address flapping finished on port. Unknown unicast packets were normally forwarded.(Interface=GigabitEthernet0/0/25)

2019-10-30 06:05.621.1-03:00 can.cane.asw1 %%01SECE/4/UCSUPPRESSRESUME(l)[15]:MAC address flapping finished on port. Unknown unicast packets were normally forwarded.(Interface=GigabitEthernet0/0/1)

2019-10-30 06:05.331.4-03:00 can.cane.asw1 %%01IFPDT/4/INT_OUTBRDR(l)[16]:The output rate change ratio exceeded the threshold.(IfIndex = 6, InterfaceName = GigabitEthernet0/0/1, ThresholdPercent = 50%, CurrentStatisticalPeriodRate = 1248779, LastStatisticalPeriodRate = 35344946)

2019-10-30 06:05.331.3-03:00 can.cane.asw1 %%01IFPDT/4/INT_INBRDR(l)[17]:The input rate change ratio exceeded the threshold.(IfIndex = 6, InterfaceName = GigabitEthernet0/0/1, ThresholdPercent = 50%, CurrentStatisticalPeriodRate = 9141509, LastStatisticalPeriodRate = 60545787)

2019-10-30 06:05.121.4-03:00 can.cane.asw1 %%01IFPDT/4/INT_OUTBRDR(l)[18]:The output rate change ratio exceeded the threshold.(IfIndex = 30, InterfaceName = GigabitEthernet0/0/25, ThresholdPercent = 50%, CurrentStatisticalPeriodRate = 20697900, LastStatisticalPeriodRate = 45222328)

2019-10-30 06:05.121.3-03:00 can.cane.asw1 %%01IFPDT/4/INT_INBRDR(l)[19]:The input rate change ratio exceeded the threshold.(IfIndex = 30, InterfaceName = GigabitEthernet0/0/25, ThresholdPercent = 50%, CurrentStatisticalPeriodRate = 20697896, LastStatisticalPeriodRate = 45222328)

2019-10-30 06:05.821.4-03:00 can.cane.asw1 %%01IFPDT/4/INT_OUTBRDR(l)[23]:The output rate change ratio exceeded the threshold.(IfIndex = 6, InterfaceName = GigabitEthernet0/0/1, ThresholdPercent = 50%, CurrentStatisticalPeriodRate = 1167369, LastStatisticalPeriodRate = 47594010)

2019-10-30 06:05.821.3-03:00 can.cane.asw1 %%01IFPDT/4/INT_INBRDR(l)[24]:The input rate change ratio exceeded the threshold.(IfIndex = 6, InterfaceName = GigabitEthernet0/0/1, ThresholdPercent = 50%, CurrentStatisticalPeriodRate = 10060132, LastStatisticalPeriodRate = 76896331)

2019-10-30 06:05.791.1-03:00 can.cane.asw1 %%01IFPDT/4/INT_OUTBRDR(l)[25]:The output rate change ratio exceeded the threshold.(IfIndex = 30, InterfaceName = GigabitEthernet0/0/25, ThresholdPercent = 50%, CurrentStatisticalPeriodRate = 18472246, LastStatisticalPeriodRate = 53494311)

2019-10-30 06:05.781.1-03:00 can.cane.asw1 %%01IFPDT/4/INT_INBRDR(l)[26]:The input rate change ratio exceeded the threshold.(IfIndex = 30, InterfaceName = GigabitEthernet0/0/25, ThresholdPercent = 50%, CurrentStatisticalPeriodRate = 18472262, LastStatisticalPeriodRate = 53494302)

2019-10-30 06:05.721.1-03:00 can.cane.asw1 %%01IFNET/4/BWRATE_IN_RESUME(l)[32]:Interface input flow bandwidth usage was restored to the log threshold. (Interface=6, BandWidthUsage=80, LogThreshold=80, InterfaceName=GigabitEthernet0/0/1)

2019-10-30 06:05.711.2-03:00 can.cane.asw1 %%01IFNET/4/BWRATE_IN_RISING(l)[33]:Interface input flow bandwidth usage exceeded the log threshold. (Interface=6, BandWidthUsage=80, LogThreshold=80, InterfaceName=GigabitEthernet0/0/1)

2019-10-30 06:05.591.2-03:00 can.cane.asw1 %%01SECE/4/UCSUPPRESS(l)[39]:MAC address flapping started on port. The rate of unknown unicast packets was limited to 50% of the port bandwidth.(Interface=GigabitEthernet0/0/25)

2019-10-30 06:05.591.1-03:00 can.cane.asw1 %%01SECE/4/UCSUPPRESS(l)[40]:MAC address flapping started on port. The rate of unknown unicast packets was limited to 50% of the port bandwidth.(Interface=GigabitEthernet0/0/1)


Is there any way to disable or edit this feature (per vlan and/or interface) so my client can get the 700Mbps result?



Thank you

Ramiro.

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chenhui
Admin Created Nov 1, 2019 07:04:52 Helpful(0) Helpful(0)

@RamiroP hello, the logs indicates the potential network loop. You are kindly advised to investigate the problem rather than disable the anti-loop function.
Anyway, you can disable the input broadcast detection through command set flow-change-ratio input-broadcast-detect disable, please refer http://support.huawei.com/hedex/hdx.do?docid=EDOC1100101073&id=EN-US_TASK_0177101957&text=Disabling%252520Detection%252520of%252520a%252520Sudden%252520Broadcast%252520Traffic%252520Volume%252520Change%252520in%252520the%252520Inbound%252520Direction%252520of%252520Interfaces&lang=en
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wissal
wissal MVE Created Oct 31, 2019 18:53:01 Helpful(0) Helpful(0)

Hello,
Please find below the Handling Process

Define ACL:

acl 4000
rule permit vlan-id xxx
Apply ACL in system view:
traffic-limit inbound acl 4000 cir 10000
traffic-limit outbound acl 4000 cir 10000

Thanks
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I%20would%20like%20to%20share%20with%20you%20my%20experience%2C%20I'm%20telecommunications%20engineer%2C%20currently%20senior%20project%20manager%20at%20an%20operator%2C%20partner%20of%20Huawei%2C%20in%20the%20radio%20access%20network%20department%2C%20for%2020%20years%20I%20managed%20several%20types%20of%20projects%2C%20for%20the%20different%20nodes%20of%20the%20network.%3Cbr%2F%3EAt%20the%20same%20time%2C%20I%20give%20courses%20in%20universities%20as%20a%20temporary%2C%20to%20bring%20the%20operational%20side%20of%20telecommunication%20technologies%20to%20students%2C%20for%20network%20supervision%20systems%2C%20mobile%20radio%20networks%20and%20access%20networks%20et
chenhui
chenhui Admin Created Nov 1, 2019 07:04:52 Helpful(0) Helpful(0)

@RamiroP hello, the logs indicates the potential network loop. You are kindly advised to investigate the problem rather than disable the anti-loop function.
Anyway, you can disable the input broadcast detection through command set flow-change-ratio input-broadcast-detect disable, please refer http://support.huawei.com/hedex/hdx.do?docid=EDOC1100101073&id=EN-US_TASK_0177101957&text=Disabling%252520Detection%252520of%252520a%252520Sudden%252520Broadcast%252520Traffic%252520Volume%252520Change%252520in%252520the%252520Inbound%252520Direction%252520of%252520Interfaces&lang=en
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RamiroP
RamiroP Created Nov 1, 2019 11:37:31 Helpful(0) Helpful(0)

Hello Chen, i know the problem is that the client needs to certify circuit by using RC2544 instrument, which seems to activate the switch protection.

Regards,
Ramiro
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chenhui
chenhui Admin Created Nov 15, 2019 01:12:33 Helpful(0) Helpful(0)

Posted by RamiroP at 2019-11-01 11:37 Hello Chen, i know the problem is that the client needs to certify circuit by using RC2544 instrumen ...
it seems to be that.
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