Obi 110 - Poisoning Network on a Regular basis
RonR:
Quote from: DarkNova on March 01, 2012, 11:42:49 am
Is there any disadvantage to doing 100 Mbit full duplex on it, or why isn't that the default?
There should be no disadvantage, and like you, I wonder why it isn't the default.
I've never encountered a problem with 10 mb/s half-duplex, but I routinely reconfigure all my OBi's to 100 mb/s full-duplex.
VulcanTourist:
Is there a means to change it through ObiTalk Expert or the direct Web interface? It seems out of place to have to use the attached phone to change such a fundamental thing.
WeAreNotAlone:
Quote from: RonR on February 22, 2012, 03:51:15 pm
The OBi defaults to 10 mb/s half-duplex on the Ethernet port. That shouldn't be a problem, and it's a shot in the dark, but you might try changing the OBi to 100 mb/s full-duplex:
1. Dial *** 0
2. Enter option 27 and press #
3. Press 1 to set a new value
4. Enter a value of 1 and press #
5. Press 1 to confirm/save
6. Hang up
7. Wait for the OBi to reboot
Regarding changing OBi 110 to Full 100 mb/s full-duplex.
Great info RonR!
I can understand why the default is 10 mb/s half-duplex as it makes it backwards compatible, but I would have thought the unit auto-senses what the port is capable of and it was automatically adjusted.
******************
Q: Where did you find the info documenting changing the port speed?
I don't see anything in the OBiDeviceAdminGuide.pdf , nor the online version of the OBiDeviceAdminGuide that documents the above.
When I log into the OBi 110 from a web-browser directly - I see NO options for changing the port speed?
Which section is it in, is it hidden?
OBiDeviceAdminGuide.pdf
CRC32=A2A581BD
(Version 28.09.11: 28 September 2011
This Revision: Revised for firmware version 1.3)
Q: Would you happen to know offhand the command line - or app within Windows (7) /XP, 2000 which allows you to check speed of the port?
(Task Manager?... (I'm running Process Explorer-Sysinternals.com and I haven't found the option within it that shows speed of port/how much bandwidth is being used.)
.
WeAreNotAlone:
Quote from: DarkNova on March 01, 2012, 11:42:49 am
This is a very interesting post. I had the same problem a few months back when I bought a new router. It was a Buffalo N300 router, fairly high end newish $65 802.11n & gigabit router. Whenever I plugged the Obi110 in to it, all speed between ports & wireless dropped to around 10 Mbit. I thought the router was bad at first but quickly discovered that the Obi110 was making all its ports slow down. Buffalo blamed the Obi, I questioned this as one would think that a gigabit router would properly do port negotiation as not everything plugged in will be gigabit! But perhaps they just didn't test 10 Mbit half duplex. Anyway, I returned the router for one that switches ports properly and haven't had a problem. But I didn't realize that the Obi110 could change to 100 Mbit full duplex. Is there any disadvantage to doing 100 Mbit full duplex on it, or why isn't that the default?
RE: Buffalo N300 router, fairly high end newish $65 802.11n & gigabit router. Whenever I plugged the Obi110 in to it, all speed between ports & wireless dropped to around 10 Mbit.
Q: You stated you returned the Buffalo N300 router, fairly high end newish $65 802.11n & gigabit router and replaced it with one that switches ports properly and haven't had a problem.
Curious, What router did you replace it with?
Quote
Is there any disadvantage to doing 100 Mbit full duplex on it, or why isn't that the default?
I would assume 10 mb/s half-duplex is the default to ensure backwards compatibility.
DarkNova:
Quote from: WeAreNotAlone on March 09, 2012, 07:13:32 pm
Q: You stated you returned the Buffalo N300 router, fairly high end newish $65 802.11n & gigabit router and replaced it with one that switches ports properly and haven't had a problem.
Curious, What router did you replace it with?
I replaced it with a Asus RT-N16 running the Toastman build of the Tomato firmware. Much better router anyway, and it does the port switching properly so even with the Obi set to 10 Mbit it doesn't have any problem. Definitely recommend this router, expensive but I think its worth it.
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