[f-nsp] XMR/MLX-firmware: 5.3 and 5.4 broken for "cam-mode ipv4 dynamic" error-msg: ("Warning: IPv4 Route ADD: CAM entry creation FAILED") -- only 5200h works, why don't they fix this bug?

[Jan Sandmaier]

Hi Gunther,

"dynamic cam mode" is some kind of flow-switching, a stale feature from
the late 90th. I don't think many people use this. Anyway the usage
isn't recommended by Brocade at all and in a sane network design this
feature should be swichted off.

Best regards,
Jan

On 28.04.2013 01:36, Gunther Stammwitz wrote:
> Dear all,
> 
>  
> 
> there was no useful feedback out of this community and yes, of course we
> have rebooted after applying the setting..
> 
> There is a *firmware-bug* with *cam-mode ipv4 dynamic *where the
> following warning appears in ones logs: “Warning: IPv4 Route ADD: CAM
> entry creation FAILED” always occurs in ipv4 dynamic cam mode.”
> 
>  
> 
> I found out that the XMR-MLX 5.3-tree is completely broken and have
> tested 5300c, 5300d and the latest 5300e.
> 
> The 5.4tree seems to be broken too, at least 5400b is broken while I
> could not yet test 5400c.
> 
> àThe _only stable version seems to be 5200h_ out of the 5.2-tree,
> earlier versions are also broken.
> 
>  
> 
> I have seen in the change log of 5200h that several cam-related bugs
> have been closed with “DEFECT000427885” but I cannot find these fixes in
> either 5300e or 5400c… which makes sense, because these versions show
> the problem mentioned above.
> 
>  
> 
> Does anyone have an idea why foundry is not able to fix this bug?!?
> 
> Gunther
> 
> 
> 
> 
>  
> 
>  
> 
> *Von:*foundry-nsp-bounces at puck.nether.net
> [mailto:foundry-nsp-bounces at puck.nether.net] *Im Auftrag von *Gunther
> Stammwitz
> *Gesendet:* Samstag, 15. Dezember 2012 01:22
> *An:* foundry-nsp at puck.nether.net
> *Betreff:* [f-nsp] Problem with dynamic cam-mode on netiron mlx 5.3.00d:
> "Warning: IPv4 Route ADD: CAM entry creation FAILED"
> 
>  
> 
> Dear colleagues,
> 
>  
> 
> has someone else seen problems with dynamic cam mode on the netiron mlx?
> I have upgraded the system to 5.3.00d and switched from static to
> dynamic cam mode at the same time.
> 
>  
> 
> From time to time I can see the following WARNING in the system log:
> “*Warning: IPv4 Route ADD: CAM entry creation FAILED*”.
> Does anyone know why this is happening and if the router tries to
> program the problematic entry into the cam again or is it getting lost?
> 
>  
> 
> Has anyone else seen these problems before – if so: which version are
> you running?
> 
> Is anyone running *dynamic cam-mode* without problems? If so: which
> version is running fine?
> 
> This router is running bgp4 with full tables and two feeds and pushes
> about 3 gigabit per second on a NI-MLX-1Gx20-SFP-linecard in slot1.
> 
>  
> 
>  
> 
>>show cam-partition brief
> 
> CAM partitioning profile: ipv4-ipv6-2
> 
> Slot 1 XPP20SP 0:
> 
> # of CAM device                = 3
> 
> Total CAM Size                 = 524288 entries (36Mbits)
> 
> IP: Raw Size 491520, User Size 491520(0 reserved)
> 
>   Subpartition  0: Raw Size 2048, User Size 2048, (0 reserved)
> 
>   Subpartition  1: Raw Size 448283, User Size 448283, (0 reserved)
> 
>   Subpartition  2: Raw Size 35001, User Size 35001, (0 reserved)
> 
>   Subpartition  3: Raw Size 4819, User Size 4819, (0 reserved)
> 
>   Subpartition  4: Raw Size 729, User Size 729, (0 reserved)
> 
> […]
> 
>  
> 
>  
> 
>>show cpu lp 1
> 
> SLOT  #:               LP CPU UTILIZATION in  %:
> 
>              in 1 second:  in 5 seconds:  in 60 seconds: in 300 seconds:
> 
>      1:        8             8              8               8
> 
>  
> 
>  
> 
> Kind regards
> 
> Gunther
> 
>  
> 
> 
> 
> _______________________________________________
> foundry-nsp mailing list
> foundry-nsp at puck.nether.net
> http://puck.nether.net/mailman/listinfo/foundry-nsp
> 


-- 
Jan Sandmaier
Network Engineer

1&1 Internet AG
Brauerstraße 48
DE-76135 Karlsruhe

Telefon: +49 721 91374 4213
E-Mail: jan.sandmaier at 1und1.de
Web: www.1und1.de

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Hoffmann, Andreas Hofmann, Markus Huhn, Hans-Henning Kettler, Dr. Oliver
Mauss, Jan Oetjen, Martin Witt, Christian Würst
Aufsichtsratsvorsitzender: Michael Scheeren

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