[manet-dlep-rg] TCP clients, servers, and discovery (WAS: Re: notes DLEP meeting @ IETF88)
"Stan Ratliff (sratliff)" <sratliff@cisco.com> Thu, 14 November 2013 17:53 UTC
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From: "Stan Ratliff (sratliff)" <sratliff@cisco.com>
To: "DLEP Research Group (manet-dlep-rg@ietf.org)" <manet-dlep-rg@ietf.org>
Thread-Topic: TCP clients, servers, and discovery (WAS: Re: [manet-dlep-rg] notes DLEP meeting @ IETF88)
Thread-Index: AQHO4WJgb7E6lbq1xEqVvWEUNTd8Mw==
Date: Thu, 14 Nov 2013 17:53:07 +0000
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Subject: [manet-dlep-rg] TCP clients, servers, and discovery (WAS: Re: notes DLEP meeting @ IETF88)
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I thought about not sending this email… perhaps I should have abided that urge, but what-the-heck… ;-) On Nov 14, 2013, at 11:12 AM, Teco Boot <teco@inf-net.nl> wrote: > > Op 14 nov. 2013, om 16:20 heeft Henning Rogge <hrogge@googlemail.com> het volgende geschreven: > >> I still prefer the UDP peer discovery sent by the radio. > > +1 > Followed by a TCP SYN response sent by router. > This enables set up of DLEP sessions without the UDP ignition packet. Routers can send the TCP SYN to the modem if they have knowledge on the modem IP address. > > Teco > > >> >> Henning Rogge >> If this winds up being the path taken, it means that modems are going to wind up juggling UDP and TCP sockets, including a TCP listen() socket. Multi-socket select() dispatch loops; managing listen queue depth, and dealing with non-blocking sockets (so that the select works) are also on the horizon for the modem implementers. And all of this to get a 1-hop discovery mechanism running - I wonder what the path length (libraries INCLUDED) for that is, just to avoid a single line of config (that being, the address and port of the other end of the connection)? The alternative I was shooting for, from the modem perspective, was along the lines of: 1. Open a (blocking? non-blocking? don't care) UDP socket. 2. Receive the discovery packet. Close that socket? Keep it open? Your call. 3. Open a TCP socket. Issue connect(), from the info you got (and/or derived) from the discovery packet. 4. Flail away, sending and receiving actual DLEP protocol packets! I'm beginning to think we need to pop the champagne corks and congratulate ourselves for (partially) designing something no one in their right mind would implement… Stan
- Re: [manet-dlep-rg] notes DLEP meeting @ IETF88 Teco Boot
- Re: [manet-dlep-rg] notes DLEP meeting @ IETF88 Teco Boot
- Re: [manet-dlep-rg] notes DLEP meeting @ IETF88 Joe Macker
- Re: [manet-dlep-rg] notes DLEP meeting @ IETF88 Teco Boot
- Re: [manet-dlep-rg] notes DLEP meeting @ IETF88 Stan Ratliff (sratliff)
- Re: [manet-dlep-rg] notes DLEP meeting @ IETF88 Stan Ratliff (sratliff)
- Re: [manet-dlep-rg] notes DLEP meeting @ IETF88 Teco Boot
- Re: [manet-dlep-rg] notes DLEP meeting @ IETF88 Henning Rogge
- [manet-dlep-rg] Mandatory processing TLVs by rout… Teco Boot
- [manet-dlep-rg] Resources TLV Teco Boot
- [manet-dlep-rg] Latency Teco Boot
- [manet-dlep-rg] Rename Neighbor to Destination Teco Boot
- [manet-dlep-rg] Peer termination Teco Boot
- [manet-dlep-rg] DLEP session establishment Teco Boot
- [manet-dlep-rg] Multicast in dlep-04 Teco Boot
- Re: [manet-dlep-rg] Resources TLV Stan Ratliff (sratliff)
- Re: [manet-dlep-rg] Peer termination Stan Ratliff (sratliff)
- Re: [manet-dlep-rg] Multicast in dlep-04 Stan Ratliff (sratliff)
- Re: [manet-dlep-rg] Mandatory processing TLVs by … Stan Ratliff (sratliff)
- Re: [manet-dlep-rg] Mandatory processing TLVs by … Henning Rogge
- [manet-dlep-rg] DLEP session establishment Teco Boot
- Re: [manet-dlep-rg] Resources TLV Teco Boot
- Re: [manet-dlep-rg] Peer termination Teco Boot
- Re: [manet-dlep-rg] Mandatory processing TLVs by … Teco Boot
- Re: [manet-dlep-rg] DLEP session establishment Henning Rogge
- Re: [manet-dlep-rg] Multicast in dlep-04 Teco Boot
- Re: [manet-dlep-rg] notes DLEP meeting @ IETF88 Teco Boot
- Re: [manet-dlep-rg] notes DLEP meeting @ IETF88 Henning Rogge
- Re: [manet-dlep-rg] DLEP session establishment Taylor, Rick
- Re: [manet-dlep-rg] notes DLEP meeting @ IETF88 Teco Boot
- Re: [manet-dlep-rg] notes DLEP meeting @ IETF88 Teco Boot
- Re: [manet-dlep-rg] DLEP session establishment Taylor, Rick
- Re: [manet-dlep-rg] Mandatory processing TLVs by … Taylor, Rick
- Re: [manet-dlep-rg] Peer termination Taylor, Rick
- Re: [manet-dlep-rg] Resources TLV Taylor, Rick
- Re: [manet-dlep-rg] Resources TLV Stan Ratliff (sratliff)
- Re: [manet-dlep-rg] Latency Taylor, Rick
- Re: [manet-dlep-rg] Latency Henning Rogge
- Re: [manet-dlep-rg] Latency Taylor, Rick
- Re: [manet-dlep-rg] DLEP session establishment Stan Ratliff (sratliff)
- Re: [manet-dlep-rg] Latency Stan Ratliff (sratliff)
- Re: [manet-dlep-rg] Latency Henning Rogge
- Re: [manet-dlep-rg] Peer termination Teco Boot
- Re: [manet-dlep-rg] Latency Stan Ratliff (sratliff)
- Re: [manet-dlep-rg] DLEP session establishment Henning Rogge
- Re: [manet-dlep-rg] Peer termination Stan Ratliff (sratliff)
- Re: [manet-dlep-rg] DLEP session establishment Taylor, Rick
- [manet-dlep-rg] Draft-04 text Taylor, Rick
- Re: [manet-dlep-rg] DLEP session establishment Stan Ratliff (sratliff)
- Re: [manet-dlep-rg] Peer termination Taylor, Rick
- Re: [manet-dlep-rg] Latency Taylor, Rick
- Re: [manet-dlep-rg] Latency Henning Rogge
- Re: [manet-dlep-rg] DLEP session establishment Stan Ratliff (sratliff)
- Re: [manet-dlep-rg] Draft-04 text Stan Ratliff (sratliff)
- Re: [manet-dlep-rg] DLEP session establishment Stan Ratliff (sratliff)
- Re: [manet-dlep-rg] DLEP session establishment Henning Rogge
- Re: [manet-dlep-rg] Latency Taylor, Rick
- Re: [manet-dlep-rg] DLEP session establishment Taylor, Rick
- Re: [manet-dlep-rg] DLEP session establishment Taylor, Rick
- Re: [manet-dlep-rg] Draft-04 text Taylor, Rick
- Re: [manet-dlep-rg] Latency Henning Rogge
- Re: [manet-dlep-rg] DLEP session establishment Henning Rogge
- Re: [manet-dlep-rg] notes DLEP meeting @ IETF88 Teco Boot
- Re: [manet-dlep-rg] DLEP TLV length Taylor, Rick
- Re: [manet-dlep-rg] Latency Taylor, Rick
- Re: [manet-dlep-rg] Mandatory processing TLVs by … Teco Boot
- Re: [manet-dlep-rg] Latency Teco Boot
- Re: [manet-dlep-rg] DLEP session establishment Teco Boot
- Re: [manet-dlep-rg] Mandatory processing TLVs by … Stan Ratliff (sratliff)
- Re: [manet-dlep-rg] DLEP TLV length Stan Ratliff (sratliff)
- Re: [manet-dlep-rg] DLEP session establishment Teco Boot
- Re: [manet-dlep-rg] DLEP session establishment Teco Boot
- Re: [manet-dlep-rg] DLEP session establishment Henning Rogge
- Re: [manet-dlep-rg] Latency Teco Boot
- Re: [manet-dlep-rg] Mandatory processing TLVs by … Teco Boot
- Re: [manet-dlep-rg] DLEP session establishment Teco Boot
- Re: [manet-dlep-rg] Latency Henning Rogge
- Re: [manet-dlep-rg] DLEP session establishment Henning Rogge
- Re: [manet-dlep-rg] DLEP session establishment Stan Ratliff (sratliff)
- Re: [manet-dlep-rg] DLEP session establishment Henning Rogge
- Re: [manet-dlep-rg] Resources TLV Ulrich Herberg
- Re: [manet-dlep-rg] DLEP session establishment Stan Ratliff (sratliff)
- Re: [manet-dlep-rg] DLEP session establishment Henning Rogge
- Re: [manet-dlep-rg] notes DLEP meeting @ IETF88 Teco Boot
- Re: [manet-dlep-rg] DLEP session establishment Stan Ratliff (sratliff)
- Re: [manet-dlep-rg] TCP clients, servers, and dis… Teco Boot
- Re: [manet-dlep-rg] DLEP session establishment Teco Boot
- Re: [manet-dlep-rg] DLEP session establishment Henning Rogge
- Re: [manet-dlep-rg] notes DLEP meeting @ IETF88 Stan Ratliff (sratliff)
- Re: [manet-dlep-rg] DLEP session establishment Teco Boot
- Re: [manet-dlep-rg] DLEP multicast address Martin Duke
- Re: [manet-dlep-rg] DLEP multicast address Henning Rogge
- Re: [manet-dlep-rg] DLEP session establishment Stan Ratliff (sratliff)
- Re: [manet-dlep-rg] DLEP session establishment Stan Ratliff (sratliff)
- Re: [manet-dlep-rg] DLEP session establishment Teco Boot
- Re: [manet-dlep-rg] notes DLEP meeting @ IETF88 Teco Boot
- Re: [manet-dlep-rg] DLEP session establishment Teco Boot
- Re: [manet-dlep-rg] DLEP session establishment Teco Boot
- Re: [manet-dlep-rg] Resources TLV Ulrich Herberg
- Re: [manet-dlep-rg] DLEP session establishment Teco Boot
- Re: [manet-dlep-rg] DLEP session establishment Taylor, Rick
- Re: [manet-dlep-rg] Latency Taylor, Rick
- Re: [manet-dlep-rg] DLEP session establishment Henning Rogge
- Re: [manet-dlep-rg] Mandatory processing TLVs by … Taylor, Rick
- Re: [manet-dlep-rg] DLEP session establishment Taylor, Rick
- Re: [manet-dlep-rg] DLEP session establishment Dowdell, John
- Re: [manet-dlep-rg] DLEP session establishment Henning Rogge
- Re: [manet-dlep-rg] DLEP session establishment Teco Boot
- Re: [manet-dlep-rg] DLEP session establishment Stan Ratliff (sratliff)
- Re: [manet-dlep-rg] DLEP session establishment Stan Ratliff (sratliff)
- Re: [manet-dlep-rg] DLEP session establishment Teco Boot
- Re: [manet-dlep-rg] DLEP session establishment Teco Boot
- Re: [manet-dlep-rg] DLEP session establishment Teco Boot
- Re: [manet-dlep-rg] DLEP session establishment Dowdell, John
- Re: [manet-dlep-rg] DLEP session establishment Stan Ratliff (sratliff)
- Re: [manet-dlep-rg] DLEP session establishment Teco Boot
- Re: [manet-dlep-rg] Resources TLV Taylor, Rick
- Re: [manet-dlep-rg] DLEP multicast address Teco Boot
- Re: [manet-dlep-rg] DLEP session establishment Teco Boot
- Re: [manet-dlep-rg] DLEP session establishment Taylor, Rick
- Re: [manet-dlep-rg] DLEP session establishment Stan Ratliff (sratliff)
- Re: [manet-dlep-rg] DLEP session establishment Taylor, Rick
- Re: [manet-dlep-rg] DLEP multicast address Teco Boot
- Re: [manet-dlep-rg] DLEP session establishment Teco Boot
- [manet-dlep-rg] manet-dlep-rg: Martin's membership Teco Boot
- Re: [manet-dlep-rg] manet-dlep-rg: Martin's membe… Ulrich Herberg
- Re: [manet-dlep-rg] manet-dlep-rg: Martin's membe… Stan Ratliff (sratliff)
- Re: [manet-dlep-rg] DLEP multicast address John Dowdell
- Re: [manet-dlep-rg] DLEP multicast address Teco Boot
- [manet-dlep-rg] DLEP multicast address Teco Boot
- Re: [manet-dlep-rg] notes DLEP meeting @ IETF88 Duke, Martin
- Re: [manet-dlep-rg] notes DLEP meeting @ IETF88 Duke, Martin
- Re: [manet-dlep-rg] notes DLEP meeting @ IETF88 Duke, Martin
- Re: [manet-dlep-rg] notes DLEP meeting @ IETF88 Duke, Martin
- Re: [manet-dlep-rg] notes DLEP meeting @ IETF88 Duke, Martin
- Re: [manet-dlep-rg] DLEP multicast address Stan Ratliff (sratliff)
- Re: [manet-dlep-rg] notes DLEP meeting @ IETF88 Duke, Martin
- Re: [manet-dlep-rg] manet-dlep-rg: Martin's membe… Duke, Martin
- Re: [manet-dlep-rg] DLEP multicast address Henning Rogge
- Re: [manet-dlep-rg] DLEP multicast address Stan Ratliff (sratliff)
- Re: [manet-dlep-rg] notes DLEP meeting @ IETF88 Martin Duke
- Re: [manet-dlep-rg] DLEP multicast address Henning Rogge
- Re: [manet-dlep-rg] DLEP multicast address Teco Boot
- Re: [manet-dlep-rg] DLEP multicast address Teco Boot
- Re: [manet-dlep-rg] DLEP multicast address Teco Boot
- Re: [manet-dlep-rg] TCP clients, servers, and dis… Teco Boot
- Re: [manet-dlep-rg] DLEP multicast address Taylor, Rick
- Re: [manet-dlep-rg] notes DLEP meeting @ IETF88 Taylor, Rick
- Re: [manet-dlep-rg] notes DLEP meeting @ IETF88 Henning Rogge
- Re: [manet-dlep-rg] DLEP multicast address Martin Duke
- Re: [manet-dlep-rg] TCP clients, servers, and dis… Henning Rogge
- Re: [manet-dlep-rg] DLEP multicast address Henning Rogge
- Re: [manet-dlep-rg] notes DLEP meeting @ IETF88 Henning Rogge
- Re: [manet-dlep-rg] DLEP multicast address Rick Taylor
- Re: [manet-dlep-rg] notes DLEP meeting @ IETF88 Rick Taylor
- Re: [manet-dlep-rg] DLEP multicast address Stan Ratliff (sratliff)
- Re: [manet-dlep-rg] notes DLEP meeting @ IETF88 Henning Rogge
- Re: [manet-dlep-rg] DLEP multicast address Rick Taylor
- Re: [manet-dlep-rg] notes DLEP meeting @ IETF88 Teco Boot
- Re: [manet-dlep-rg] notes DLEP meeting @ IETF88 Teco Boot
- Re: [manet-dlep-rg] notes DLEP meeting @ IETF88 Stan Ratliff (sratliff)
- Re: [manet-dlep-rg] notes DLEP meeting @ IETF88 Rick Taylor
- Re: [manet-dlep-rg] notes DLEP meeting @ IETF88 Rick Taylor
- Re: [manet-dlep-rg] notes DLEP meeting @ IETF88 Stan Ratliff (sratliff)
- Re: [manet-dlep-rg] notes DLEP meeting @ IETF88 Henning Rogge
- Re: [manet-dlep-rg] DLEP multicast address Martin Duke
- [manet-dlep-rg] TCP clients, servers, and discove… Stan Ratliff (sratliff)
- Re: [manet-dlep-rg] TCP clients, servers, and dis… Henning Rogge
- Re: [manet-dlep-rg] TCP clients, servers, and dis… Teco Boot
- Re: [manet-dlep-rg] TCP clients, servers, and dis… Henning Rogge
- Re: [manet-dlep-rg] TCP clients, servers, and dis… Taylor, Rick
- Re: [manet-dlep-rg] TCP clients, servers, and dis… Teco Boot
- Re: [manet-dlep-rg] TCP clients, servers, and dis… Taylor, Rick
- Re: [manet-dlep-rg] TCP clients, servers, and dis… John Dowdell
- Re: [manet-dlep-rg] TCP clients, servers, and dis… Henning Rogge
- Re: [manet-dlep-rg] TCP clients, servers, and dis… Teco Boot
- Re: [manet-dlep-rg] TCP clients, servers, and dis… John Dowdell
- Re: [manet-dlep-rg] TCP clients, servers, and dis… Henning Rogge
- Re: [manet-dlep-rg] TCP clients, servers, and dis… Taylor, Rick
- Re: [manet-dlep-rg] TCP clients, servers, and dis… Henning Rogge
- Re: [manet-dlep-rg] TCP clients, servers, and dis… Rick Taylor
- Re: [manet-dlep-rg] TCP clients, servers, and dis… Stan Ratliff (sratliff)
- Re: [manet-dlep-rg] TCP clients, servers, and dis… Teco Boot
- Re: [manet-dlep-rg] TCP clients, servers, and dis… Stan Ratliff (sratliff)
- Re: [manet-dlep-rg] TCP clients, servers, and dis… Teco Boot
- Re: [manet-dlep-rg] DLEP multicast address Martin Duke
- Re: [manet-dlep-rg] DLEP multicast address Stan Ratliff (sratliff)