[j-nsp] GRE on MX - weird performance issue

[Luca Salvatore]

I did see that link but it mentions that the config if for a MX with MS-PIC/MS-DPC which the MX10 and MX5 do not currently support.

Luca


-----Original Message-----
From: 叶雨飞 [mailto:sunyucong at gmail.com] 
Sent: Tuesday, 18 December 2012 3:23 PM
To: Luca Salvatore
Cc: juniper-nsp at puck.nether.net
Subject: Re: [j-nsp] GRE on MX - weird performance issue

Sounds like a MSS issue have you tried this?

http://kb.juniper.net/InfoCenter/index?page=content&id=KB24352&cat=MX_SERIES&actp=LIST

On Mon, Dec 17, 2012 at 7:57 PM, Luca Salvatore <Luca at ninefold.com> wrote:
> Hi All,
>
> I have a MX5 and a MX10 router connected over the Internet via a GRE tunnel.  When I do a file transfer between the two sites that these routers connect it looks like there is some form of rate-limiting going on.  My transfer speed flat lines at about 300KB.
>
> However I know it is not a bandwidth issue because I can have multiple file transfers going on at once and they all sit at about 300KB.  So this shows me that I have enough bandwidth to push lots of traffic at once, but each single stream of traffic never gets much faster than 300KB.
>
> I've tried different MTU settings on the GRE interface without much change, was thinking of adjusting the MSS but can't seem to figure that out on the MX.
>
> Any thoughts here?  I don't have any form for shaping/policing/rate limiting anywhere, and it seems strange that I can push lots of data slowly, but I can't have one transfer going fast!
> Seems like there is some type of 'per session' rate limiting going on but it's not me!
>
> Thanks as always.
> Luca
>
> _______________________________________________
> juniper-nsp mailing list juniper-nsp at puck.nether.net 
> https://puck.nether.net/mailman/listinfo/juniper-nsp