[f-nsp] Anyone having success with 8.0.01x software on Bigiron Jetcore

[Jeroen Oldenhof]

Hi Jeroen,


We are running three non-Jetcore BI4000's with MGMT4 blades with 
software version 07.8.04T53 (B2R07804.bin).

We're also facing this strange packetloss, 1% in mtr.. even from a 
directly connected host to the router IP.. and we do far less bandwith.. 
around 100mbit.
I don't know if this is in any way related with your problem, but in my 
believe it started after upgrading from a way older image.. 07.0.10T53.

So any suggestions which could fix your problem maybe also fixes mine :)

Best,
  - Jeroen


Jeroen Wunnink schreef:
> We're running a total of three Jetcore Bigiron 4000's
>
> Recently I updated these to the B2P08001r software image from the 
> 07.8.x release in order to be able to offer IPv6 to our customers in 
> the upcoming future, but somehow it seems that this 8.x software 
> release always comes back to bite me in the ass.
>
> We have a fairly loaded network with 400+ servers in it (of which a 
> lot are webservers), so there's high CAM utilization involved on some 
> of the edge routers (which have several full and partial BGP tables 
> and a presence on the AMS-IX), but ever since I upgraded the routers 
> to the 8.x software the network seems to have a consystent packetloss 
> of around 1% to different destinations.
>
> I've checked all ports on all routers for any TX/RX/CRC errors but 
> those check out all fine.
>
> Every now and then packets are simply 'lost', it's not a major loss, 
> but it's enough for mtr to report a 1% loss across various hops and a 
> bigger streaming customer to notice an occasional 'hiccup' in his 
> streams. Yesterday I got some help from a colleague provider 
> suggesting to disable sFlow to see if it were short CPU bursts, and 
> although initially that seemed to help, the loss is back today as it 
> was before.
>
> Now there is one card that seems to hover around very little available 
> L3 CAM, so there's a second J-BxG card underway to split up some high 
> traffic ports to see if that resolves it, but I'm also noticing loss 
> on a path that skips that specific router alltogether.
>
> Now I can do a total revert to 07.8.04a software, but then I'm back 
> where I started: no IPv6 support whatsoever.
>
> Anyone else noticing loss with the 8.0.01x firmware in 400Mbit+ 
> networks ?
>
> In the long run we have at least 1 XMR planned to replace the busiest 
> Jetcore, but that not a direct option yet.