nanog mailing list archives
Re: Verizon EVDO Issues
From: "Robert E. Seastrom" <rs () seastrom com>
Date: Thu, 09 Apr 2009 07:15:44 -0400
Seth Mattinen <sethm () rollernet us> writes:
I have a few Sprint EVDO cards. They go into standby when nothing is actively going on and fire up within seconds when there is something to do. I regularly use everything from SSH to streaming video without any issues. I only notice the delay with SSH when I don't type anything for a few minutes and it has to come active again, but I can leave it idle for hours and it never drops.
Interesting. When I got my Sprint EVDO card (u727) a year and a half ago, they were pretty nasty about gunning down (bidirectional spoofed RST coming out of the middle of the network somewhere) any TCP sessions that were idle for ten minutes or more. Quite repeatable and verified on the downlow by People With Insight that this was in fact expected behavior from boxes that were in the middle of the network due to "politics" (unlike Verizon, Sprint appears to put no restrictions on inbound connections to the evdo-host). Putting this: ServerAliveInterval 60 in ~/.ssh/config was an effective work-around. I have not revisited the issue to see if Sprint has corrected this behavior. Perhaps budget constraints or customer complaints have caused Sprint to revisit the necessity of having extraneous hardware in their network. -r
Current thread:
- Verizon EVDO Issues Charles Wyble (Apr 07)
- Re: Verizon EVDO Issues Charles Wyble (Apr 08)
- <Possible follow-ups>
- Re: Verizon EVDO Issues Alexander Harrowell (Apr 08)
- Re: Verizon EVDO Issues Nathan Ward (Apr 08)
- Equinix contact Fouant, Stefan (Apr 08)
- Re: Equinix contact Niels Bakker (Apr 08)
- RE: Equinix contact Fouant, Stefan (Apr 08)
- Re: Verizon EVDO Issues Seth Mattinen (Apr 08)
- Re: Verizon EVDO Issues Robert E. Seastrom (Apr 09)
- Re: Verizon EVDO Issues Daniel Senie (Apr 09)
- Re: Verizon EVDO Issues Robert E. Seastrom (Apr 09)
- Re: Verizon EVDO Issues Joe Provo (Apr 09)
- Re: Verizon EVDO Issues Steven M. Bellovin (Apr 09)
- Re: Verizon EVDO Issues Robert E. Seastrom (Apr 09)
- Re: Verizon EVDO Issues Steven M. Bellovin (Apr 09)
- Re: Verizon EVDO Issues Robert E. Seastrom (Apr 09)