I am with Marius on this. Using a single point to route all the 44 net traffic by tunnel is good for small communication that wont suffer from resend or such. But for a voice communication that need to have a steady stream you are looking for trouble. Of course it will work most of the time, But nope it wont work all the time.
Pierre VE2PF
________________________________________ De : 44Net 44net-bounces+petem001=hotmail.com@mailman.ampr.org de la part de Marius Petrescu via 44Net 44net@mailman.ampr.org Envoyé : 12 novembre 2020 14:13 À : 44net@mailman.ampr.org Cc : Marius Petrescu Objet : Re: [44net] Lost Packets
This may sound blunt, but why do you need to run DMR traffic from/to the internet via 44net if you don't have a BGP announced subnet? Using your public IP for it (since you have a gateway, otherwise you would not need ampr-gw) would actually circumvent all those problems related to the gateway. Also, your partners would experience a round trip time cut in half by connecting directly to you or you connecting to them via public IP instead of the client<->ampr-gw<->client option. And if they also use 44net, then again the gateway should not matter, since all tunnels are full mesh.
The AMPR tunneling system is for interlinking isolated subnets and the gateway itself to provide management and occasional internet access, not for providing high speed high performance routing, like those needed for DV traffic.
Talking of sustainability, you use the gateway for something it was not meant to support, not mentioning the contribution to clogging the ampr-gw router itself.
Marius, YO2LOJ
On 12.11.2020 07:15, Albert Lawson via 44Net wrote:
Dan,
Please keep us posted on USCD's response. I'm experiencing a 30% packet loss to the gateway tonight and that's not acceptable. I don't want to make waves or cause trouble....but this is not sustainable. The packet loss started again tonight around 5PM (PST) and has so far made a complete mess of two of our DMR nets.
73's
-Albert WB7AWL
-----Original Message----- From: 44Net [mailto:44net-bounces+wb7awl=lawsonpc.com@mailman.ampr.org] On Behalf Of Daniel E Andersen via 44Net Sent: Wednesday, November 11, 2020 9:06 PM To: 44net@mailman.ampr.org Cc: Daniel E Andersen dea@caida.org Subject: Re: [44net] Lost Packets
On 11/11/20 8:00 AM, Paul Sladen via 44Net wrote:
CAIDA/UCSD is beholden to random upstream filtering as much in 2001[1] and 2009[2] as it is now. And in-turn, AmprGW is/was beholden (2019) to an ethernet switch with customised firmware[3]... a blackbox.
I can answer this part, at least. The make and model is a juniper ex3300-48t. It is not running any customized firmware. Rather, the link drops down into a small vlan grouping with the link from UCSD, a link to the ampr gw box, and a port replicator. For whatever reason, when the ampr gw box reboots, there is a chance it takes the switch with it. usually, the switch just reboots, but sometimes it full on crashes and needs a power cycle.
It has been pretty stable recently, however.
Last flapped : 2019-10-18 01:34:48 PDT (55w5d 08:34 ago) ( on all three ports )
In other news, I'm still waiting to hear back from UCSD. Keep in mind it is a holiday here, so it may be tomorrow.
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