nanog mailing list archives
Re: SDH Fiber Problem
From: jacob miller <mmzinyi () yahoo com>
Date: Mon, 19 Sep 2011 00:58:39 -0700 (PDT)
The entire link is an STM4 that has been channelised. We are using 3xSTM1 for the EoS service. The VCG group is configured with 3xSTM1. Regards, Jacob Miller ----- Original Message ----- From: Alastair Johnson <aj () sneep net> To: jacob miller <mmzinyi () yahoo com> Cc: "nanog () nanog org" <nanog () nanog org> Sent: Monday, September 19, 2011 10:38 AM Subject: Re: SDH Fiber Problem On 9/19/2011 12:22 AM, jacob miller 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.
How much traffic are you trying to pass over the link? How big is the underlying VCAT? Is it possible that this is misconfigured does not have enough bandwidth? Depending on the underlying EoSONET/EoSDH bandwidth, you might need to pace traffic into the ADM to avoid overrunning buffers. aj
Current thread:
- SDH Fiber Problem jacob miller (Sep 18)
- RE: SDH Fiber Problem Paseka, Tomas (Sep 18)
- Re: SDH Fiber Problem Randy Bush (Sep 18)
- Re: SDH Fiber Problem jacob miller (Sep 19)
- Re: SDH Fiber Problem Alastair Johnson (Sep 19)
- Re: SDH Fiber Problem jacob miller (Sep 19)
- Re: SDH Fiber Problem Leigh Porter (Sep 19)
- Re: SDH Fiber Problem jacob miller (Sep 19)
- Re: SDH Fiber Problem Leigh Porter (Sep 19)
- Re: SDH Fiber Problem jacob miller (Sep 19)
- Re: SDH Fiber Problem Leigh Porter (Sep 19)
- Re: SDH Fiber Problem jacob miller (Sep 19)
- Re: SDH Fiber Problem BH (Sep 19)
- Re: SDH Fiber Problem jacob miller (Sep 19)
- Re: SDH Fiber Problem Daniel Holme (Sep 20)
- Re: SDH Fiber Problem jacob miller (Sep 27)