Re: [f-nsp] High CPU on LP

Daniel Zilla <[email protected]>
Newsgroups gmane.network.nsp.foundry
Message-ID <[email protected]>
https://pastebin.com/4sYdwcBT

30.03.2017, 01:18, "Daniel Zilla" <[email protected]>:

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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