SDH Fiber Problem

Leigh Porter leigh.porter at ukbroadband.com
Mon Sep 19 03:10:13 CDT 2011


What exactly do you mean by meaningful traffic? ICMP from port to port works, can you pass TCP? SSH between routers? Establish a TCP session over it?

Are you using Juniper SRXs ? :-)

-- 
Leigh Porter


On 19 Sep 2011, at 08:24, "jacob miller" <mmzinyi at yahoo.com> wrote:

> I have tried the pings and am able to ping through with a size of 1600 with the df-bit set
> 
> without the df-bit am able to get up to 9000.
> 
> The switched on bot ends hav been set to allow jumbo frames through and the system MTU size and routing MTU sizes are at 1998.
> The switch is a 2960 Cisco switch.
> 
> I have set the mtu on the interface on the end router to 1600 and still unable to push meaningful traffic.
> 
> Regards,
> jacob Miller
> 
> 
> 
> ----- Original Message -----
> From: Randy Bush <randy at psg.com>
> To: jacob miller <mmzinyi at yahoo.com>
> Cc: "nanog at nanog.org" <nanog at nanog.org>
> Sent: Monday, September 19, 2011 9:55 AM
> Subject: Re: SDH Fiber Problem
> 
>> I can ping on point to point
>> I have BGP up and running
>> When I try to pass traffic over the link my clients are unable to pass
>> any meanigful traffic asn browsing is impossible.
> 
> mtu?  try various size pings.
> 
> filters?
> 
> randy
> 
> 
> 
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