nanog mailing list archives
Re: MX204 tunnel services BW
From: Tom Beecher <beecher () beecher cc>
Date: Tue, 3 Oct 2023 09:30:13 -0400
AIUI, with Trio, you don’t have to disable a physical port, but that comes at the cost of “Tunnel gets whatever bandwidth is left after physical port packets are processed” and likely some additional overhead for managing the sharing.
This was pretty much my understanding as well, last time I dealt with this. On MPC/Trio , you just enabled tunnel-services on a given PIC, and landed your tunnel there. The tunnel capacity was just part of the PFE capacity. Was only on pre-Trio that the bandwidth keyword was required, and that actually reserved that much capacity strictly for the tunnel. On Mon, Oct 2, 2023 at 6:48 PM Delong.com via NANOG <nanog () nanog org> wrote:
AIUI, with Trio, you don’t have to disable a physical port, but that comes at the cost of “Tunnel gets whatever bandwidth is left after physical port packets are processed” and likely some additional overhead for managing the sharing. Could that be what’s happening to you? OwenOn Oct 2, 2023, at 09:24, Jeff Behrns via NANOG <nanog () nanog org> wrote: Encountered an issue with an MX204 using all 4x100G ports and a logical tunnel to hairpin a VRF. The tunnel started dropping packets around8Gbps.I bumped up tunnel-services BW from 10G to 100G which made the problem worse; the tunnel was now limited to around 1.3Gbps. To my knowledgewithTrio PFE you shouldn't have to disable a physical port to allocatebandwidthfor tunnel-services. Any helpful info is appreciated.
Current thread:
- MX204 tunnel services BW Jeff Behrns via NANOG (Oct 02)
- Re: MX204 tunnel services BW Delong.com via NANOG (Oct 02)
- Re: MX204 tunnel services BW Tom Beecher (Oct 03)
- RE: MX204 tunnel services BW Jeff Behrns via NANOG (Oct 03)
- Re: MX204 tunnel services BW Owen DeLong via NANOG (Oct 03)
- Re: MX204 tunnel services BW Saku Ytti (Oct 02)
- Re: MX204 tunnel services BW Owen DeLong via NANOG (Oct 03)
- RE: MX204 tunnel services BW Jeff Behrns via NANOG (Oct 16)
- Re: MX204 tunnel services BW Delong.com via NANOG (Oct 16)
- Re: MX204 tunnel services BW Saku Ytti (Oct 16)
- Re: MX204 tunnel services BW Ryan Kozak (Oct 16)
- Re: MX204 tunnel services BW Mark Tinka (Oct 16)
- Re: MX204 tunnel services BW Mark Tinka (Oct 16)
- Re: MX204 tunnel services BW Delong.com via NANOG (Oct 02)