nanog mailing list archives
Re: MPLS acceptable latency?
From: PC <paul4004 () gmail com>
Date: Thu, 15 Nov 2012 12:50:17 -0700
Your provider is likely backhauling the circuits opposite directions to PE routers in a different geographic local than the sites. It's time to have a discussion with your sales engineer about the physical pathing of your circuits and PE router locations. When I know I have latency critical circuits, I always insist on backhaul to the same geographic region and/or Pe. It's unlikely the MPLS or circuits themselves have anything to do with the latency, assuming this is T1, Ethernet, or similar. It's possible it could be a routing issue SP side, but is not as likely as a general pathing issue. On Thu, Nov 15, 2012 at 12:20 PM, Jared Mauch <jared () puck nether net> wrote:
On Nov 15, 2012, at 2:15 PM, Scott Weeks wrote:--- mikeal.clark () gmail com wrote: From: Mikeal Clark <mikeal.clark () gmail com> I have some AT&T MPLS sites under a managed contract with latency averaging 75-85 ms without any load. These sites are only 45 minutes away. What is considered normal/acceptable? -------------------------------------------- Coast-to-coast latency is around 60-65msec, so that's high.What link speed? Perhaps he's using ISDN or a T1? Serialization delay is not to be ignored. - Jared
Current thread:
- Re: MPLS acceptable latency?, (continued)
- Re: MPLS acceptable latency? Mike Hale (Nov 15)
- Re: MPLS acceptable latency? Jared Mauch (Nov 15)
- Message not available
- Fwd: MPLS acceptable latency? david peahi (Nov 15)
- Re: MPLS acceptable latency? William Herrin (Nov 15)
- Re: MPLS acceptable latency? Randy (Nov 15)
- Re: MPLS acceptable latency? Alex (Nov 15)
- Re: MPLS acceptable latency? Randy (Nov 15)
- Re: MPLS acceptable latency? Scott Weeks (Nov 15)
- Re: MPLS acceptable latency? Jared Mauch (Nov 15)
- Re: MPLS acceptable latency? Mikeal Clark (Nov 15)
- RE: MPLS acceptable latency? Adam Vitkovsky (Nov 16)
- Re: MPLS acceptable latency? PC (Nov 15)
- Re: MPLS acceptable latency? Jared Mauch (Nov 15)