TP-LINK Smart Switches anyone?
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I can't see any situation where that sort of asymmetric tagging/untagging would be anything but bad. Am I missing something?
In real-world setups probably not.
We have some installs of IP-TV systems where exactly this is needed. The vendor (justaddpower) uses a really tricky setup of vlans and subnets which took me about a week of e-mail ping-pong with the support to fully understand.
They prefer using Cisco SG300/500 in L3 mode and have transmitters/receivers sitting on overlapping subnets. Receivers have two untagged VLANs on their port. The one without the PVID is used for "listening" to the IP-TV stream only while the other is used for communication (very basically speaking).
The transmitter has the PVID on the "other" VLAN where it dumps the stream into and receives communications from the receives on the VLAN without the PVID.
Each stream resides in its own VLAN.
They achieve blazingly fast switching times between streams with this kind of setup by simply assigning another VLAN to the receiver's port.
To change a receiver's channel/stream I reconfigure the switch port to another (non-PVID) VLAN (via Telnet/CLI from a Crestron control processor…).
Granted, this is a very specific setup and uncommon in other installs. But it exists. -
The two "uplink" ports on mine are fiber only and are not any faster or anything but they can support a much longer distance of "cable". I'm not using them but I suppose if I had several buildings separated by 100m it would be handy.
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I have one of those, a TL-SL2428.
The problem I have is that every few days (7 to 21) the switch lost the remote web administration so I cannot login.
Any ones has come around this issue?
I have to say the switch is connected to 21 computers and 19 of them change ip from 3 to 5 times a week.The switch and the computers has all internet address, no local ones. No vlans, etc.
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I've got many of the Smart TP-Links (dozens) out there, all of them perform very well, no problems with management interface. One of them in my home has 72 day - 21 hour - 58 min uptime right now, and I've just read out this from the web interface.
Did you try to update the firmware to the latest version?
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I have no issues with TP-Link. I have a couple of their products and they work fine. I still prefer my switches though.
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Yes robi it has the latest firmware.
I think the problem may be to switch that lot of ips every week.
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Can you login via Telnet/CLI when the Web interface is gone?
Have a look at the CLI Guide to see which commands are available to check status etc. -
hello jahonix. There is no way to login to the swtich, web, ssh, telnet. I need to request remote hands to the datacenter to hard reset the switch and them yes, I can login. Thnx.
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You can also install a remote reset device to attach to your equipment.
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It may be that the specific switch is faulty. If it's still under warranty, try to RMA it.
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Trash the trash and buy another.
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There is no way to login to the swtich, web, ssh, telnet.
I heard the same from a friend who used their 52-port Gbit Switches (don't know exactly which ones) in a datacenter as cheap port concentrators.
They locked up access under heavy load and had to be rebooted.
Personally I've never seen this behavior but I never stressed them that much.Yesterday I was on TP-Link's CeBIT booth. Quite impressed of what's going to come from them (switch-wise) and good people to talk to. They actually listen to you and understand - which is more or less rare with asian companies…
Have you tried filing a support case with them?
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Hi all,
well, yes that will be my last option (send a support ticket). The switch works great. The only problem is that I lost acces to remote management interface. -
Is the management interface opened to the web or might someone internally be accessing it to death?
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Personally I would never consider a switch with only web access to manage it. A data center switch should always have a serial interface otherwise you are left with stock reset if you loose access.
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These switches do have a serial interface on a dedicated RJ45 connector, just like Ciscos.
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Yes, the management interface is opened to the web.
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Thats the entire problem most likely. Close it to the web and access it via SSH socks proxy or via vpn. I prefer vpn.
Never EVER expose ANY management interface for anything directly to the web.
Interfaces for routers and switches and other stuff can have a million flaws and thats ok as long as they are behind a firewall/vpn that is kept up to date.
But exposing directly to internet. Bad. Very very bad.
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We use a couple TP-LINK switches in our company also.
1xTL-SG1016DE, 1x TL-SG3424 and 3x TL-SG5428
Great bang for buck!
Uptime from one of our switches without any issues: 765 day - 21 hour - 42 min - 46 sec
Can't say we put heavy loads on them, but so far no issues.Have to say I only use the web interface, as CLI is made way too complicated in these switches (TL-SG5428)
