[rbak-nsp] Strange PPA crash on SE-800 while there is no QoS

[Alireza Soltanian]

No policy, the interfaces/ports are normal routed ports which are used for
IP/MPLS traffic. No QoS configuration is applied.

-----Original Message-----
From: Marcin Kuczera [mailto:marcin at leon.pl] 
Sent: Sunday, October 16, 2011 10:22 PM
To: Alireza Soltanian
Cc: redback-nsp at puck.nether.net
Subject: Re: [rbak-nsp] Strange PPA crash on SE-800 while there is no QoS


> Also sometimes I have this log:
> 
>  
> 
> Oct 16 01:55:52: %PPAFWD-3-PAKIO_ERR: 
> 4bfa6f6f/0000001814/186600000:09/IPPA/EU00:Bad mdu chain sent by
> 0x4004f290: Start 0x6fdfe748  Total length 611 - 0005a08c 000aa27c
> 00059bf4 0004da2c 0004f290 00050d6c 000a6380 000a6358 00000000
> 
> Oct 16 01:55:52: %PPAFWD-3-PAKIO_ERR: 
> 4bfb1fa1/0000001814/186700000:09/IPPA/EU00:MDU 0x6fdfe700 Next
> 0x2fdfd820 - 0005a08c 000aa27c 00059bf4 0004d806 0004da38 0004f290 
> 00050d6c 000a6380 000a6358 00000000
> 
> Oct 16 01:55:52: %PPAFWD-3-PAKIO_ERR: 
> 4bfbc830/0000001814/186900000:09/IPPA/EU00:MDU 0x6fdfd800 Next
> 0x3fdfe640 - 0005a08c 000aa27c 00059bf4 0004d806 0004da38 0004f290 
> 00050d6c 000a6380 000a6358 00000000
> 
> Oct 16 01:55:52: %PPAFWD-3-PAKIO_ERR: 
> 4bfc6f58/0000001814/187000000:09/IPPA/EU00:MDU 0x7fdfe600 Next
> 0x3fdfdd40 - 0005a08c 000aa27c 00059bf4 0004d806 0004da38 0004f290 
> 00050d6c 000a6380 000a6358 00000000
> 

Dont know what exacly is MDU, but it looks that something had provided 
wrong chain entry into IPPA (so on ingress).
What specific Ingress roles you have on pvcs/interfaces related to that 
card ?

Regards,
Marcin