[f-nsp] High CPU on LP

[Youssef Bengelloun-Zahr]

Also, what code version are you running ?

Best regards.



> Le 30 mars 2017 à 07:57, Eldon Koyle <ekoyle+puck.nether.net at gmail.com> a écrit :
> 
> What protocols are you running over the GRE tunnel?
> 
> It might be helpful to include the GRE config from both sides.
> 
> The diagnostic guide says drop code 55 / Layer 3 invalid FID(PFE) means "the forwarding information for a layer 3 packet is invalid in software".
> 
> -- 
> Eldon
> 
>> On Mar 29, 2017 11:23 PM, "Daniel Zilla" <dzilla833 at yandex.com> wrote:
>> Formatting;
>>  
>> Hello List
>>  
>> LP CPU is stuck at 96-100% when receiving traffic over a configured GRE tunnel
>>  
>> MLX-4
>> NI-MLX-10Gx4
>>  
>> Debug packet capture shows many of these
>>  
>> [ppcr_tx_packet] ACTION: Drop packet(reason: Layer 3 invalid FID(PFE))
>> [ppcr_rx_packet]: Packet received
>> Time stamp : 188 day(s) 12h 45m 15s:,
>> TM Header: [ 8016 1000 0000 ]
>> Type: Fabric Unicast(0x00000008) Size: 88 Parity: 1 Src IF: 0
>> Src Fap: 0 Dest Port: 0  Src Type: 0 Class: 0x00000000
>> **********************************************************************
>> Packet size: 82, XPP reason code: 0x00006868
>> FID     = 0x0001
>>   Offset  = 0x10
>>   VLAN    = 100(0x0064)
>>   CAM     = 0x135ad(R)
>>   SFLOW   = 0
>>   DBL TAG = 0
>>  
>> Pri CPU MON SRC   PType US BRD DAV SAV DPV SV ER TXA SAS Tag MVID
>> 0   1   0   1/1   0     1  0   0   0   1   0  0  1   1   1   0
>>  
>> The issue only occurs when traffic is sent over the GRE tunnel otherwise CPU is 1 - 2 %
>>  
>> Management CPU is low all the time, LP is the only problematic
>>  
>> Show tasks indicates LP-RX-Pak is 96% : main is 2%
>>  
>> No route-only mode is enabled on this chassis.
>>  
>> Cheers
>> 
>> 
>> 30.03.2017, 01:18, "Daniel Zilla" <dzilla833 at yandex.com>:
>>> Hello List
>>>  
>>> LP CPU is stuck at 96-100% when receiving traffic over a configured GRE tunnel
>>>  
>>> MLX-4
>>> NI-MLX-10Gx4
>>>  
>>> Debug packet capture shows many of these
>>>  
>>> [ppcr_tx_packet] ACTION: Drop packet(reason: Layer 3 invalid FID(PFE))
>>> [ppcr_rx_packet]: Packet received
>>> Time stamp : 188 day(s) 12h 45m 15s:,
>>> TM Header: [ 8016 1000 0000 ]
>>> Type: Fabric Unicast(0x00000008) Size: 88 Parity: 1 Src IF: 0
>>> Src Fap: 0 Dest Port: 0  Src Type: 0 Class: 0x00000000
>>> **********************************************************************
>>> Packet size: 82, XPP reason code: 0x00006868
>>> FID     = 0x0001
>>>   Offset  = 0x10
>>>   VLAN    = 100(0x0064)
>>>   CAM     = 0x135ad(R)
>>>   SFLOW   = 0
>>>   DBL TAG = 0
>>>  
>>> Pri CPU MON SRC   PType US BRD DAV SAV DPV SV ER TXA SAS Tag MVID
>>> 0   1   0   1/1   0     1  0   0   0   1   0  0  1   1   1   0
>>>  
>>> The issue only occurs when traffic is sent over the GRE tunnel otherwise CPU is 1 - 2 %
>>>  
>>> Management CPU is low all the time, LP is the only problematic
>>>  
>>> Show tasks indicates LP-RX-Pak is 96% : main is 2%
>>>  
>>> No route-only mode is enabled on this chassis.
>>>  
>>> Cheers
>> 
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