5 ms·
I think they actually did manage to fuck up even the small unmanaged switches. I have three unmanaged switches at home, one on the ground floor and two in the f
by remuskaos 2y ago
I think they actually did manage to fuck up even the small unmanaged switches. I have three unmanaged switches at home, one on the ground floor and two in the first floor. Ground floor is an 8 port netgear, first floor are one to link and one d link.
Every couple of weeks, the entire wired network goes down. Not even pinging adresses works. The d links ports leds are all flashing (perfectly in sync!) until I power cycle it. Then everything goes back to normal.
I have no idea what happens, and I should probably replace the d link soon.
- bayindirh 2y agoI have a couple of TP-Link unmanaged 4 port SOHO switches. They're pretty reliable so far.
- remuskaos 2y agoThe TP Link (typo in my other post) and the Netgear are reliable, only the D Link causes issues.
- bombela 2y agoJumbo frames? https://en.m.wikipedia.org/wiki/Jumbo_frame https://en.m.wikipedia.org/wiki/Jumbo_frame
- remuskaos 2y agoI haven't enabled jumbo frames knowingly on my system, but even if I had, why would the issue occur only every few weeks? Also, it seems to be rather independent of the actual network load.
- bombela 2y agoA friend had networked speakers that would freeze until a manual reboot time to time. It turned out to be the Linux running within the speakers that crashed on the occasional jumbo frame.
- vardump 2y agoAre you aware about broadcast storms? Perhaps you somehow accidentally introduced a loop in the network? The symptoms fit that exactly. https://en.wikipedia.org/wiki/Broadcast_storm https://en.wikipedia.org/wiki/Broadcast_storm STP is meant to prevent that. https://en.wikipedia.org/wiki/Spanning_Tree_Protocol https://en.wikipedia.org/wiki/Spanning_Tree_Protocol Of course you can't set up STP with unmanaged switches, so until you go managed and set up STP properly nothing will change.
- remuskaos 2y agoI was not! Thanks for the hint! Although I'm 100% sure there are no loops, I haven't changed the actual cable layout in ages.
- mitjam 2y agoIt could be missing IGMP Snooping Protocol support in a network with IPTV or custom VLAN setups. There are 3 versions (IGMP snooping (v1, v2, and v3)), managed switches have them all, unmanaged usually don't have them. To avoid problems, only pass a single VLAN to the unmanaged switch (it must be behind the managed switch for that), otherwise the unmanaged switch can and usually will bring a network down after some time. Or just use a switch with IGMP snooping support.
- bell-cot 2y agoIf the D-link has a wall wart which you could easily replace, try that. (And maybe a real surge strip, if you've got one handy.) Iffy power can cause all sorts of bizarre behavior.