Ethernet LAN

A tricky problem concerned with fragmentation and Logical link Layer service.

The following statements are based on DSRC protocol(see the end), however, I'm sure it also fits into other protocol as...

8 comments posted 18yrs

posted by lostlander.tom

8 comments posted 18yrs posted by lostlander.tom

LLC and MAC headers

Hello. As far as I understood 802.3/802.2 standards, the MAC header holds LLC header carrying DSAP and SSAP fields etc....

5 comments posted 18yrs

posted by mrv

5 comments posted 18yrs posted by mrv

Best Percentage Split for MM Ethernet Splitter?

I need to get a signal strength measurement on an 850nm gigabit ethernet signal without interfering with the signal. I...

0 comments posted 18yrs

posted by westes-usc

0 comments posted 18yrs posted by westes-usc

Disable ingress or dhcp spoofing on enterasys switches

I have two enterasys switches running right now, with the default configuration They are simply connected via ethernet...

0 comments posted 18yrs

posted by danncasey

0 comments posted 18yrs posted by danncasey

Ethernet TAP

i am looking for a good Ethernet TAP with the following features 10/100/1000baseTx/Fx Ethernet Fiber-Ports with GBICs/S...

2 comments posted 18yrs

posted by matthias.gruber

2 comments posted 18yrs posted by matthias.gruber

Problem: UTP only works at 10 MHz

Why a UTP cable will work at 10 MHz but will not work at 100 MHz? The same four cables are used in both frequencies. I...

12 comments posted 18yrs

posted by peloto

12 comments posted 18yrs posted by peloto

"Reserved" IP vs. manually-assigned?

Netgear RP614 router. Under the LAN configuration menu there are, among others, options for DHCP, and Manually-assigned...

20 comments posted 18yrs

posted by SparkyGuy

20 comments posted 18yrs posted by SparkyGuy

NatSemi SONIC chip quirks sought

I have a piece of hardware that I'm trying to fix. It has a National Semiconductor DP83932 SONIC Ethernet controller in...

0 comments posted 18yrs

posted by jpc

0 comments posted 18yrs posted by jpc

HP JetDirect card - assigning a fixed IP

JetDirect card J3111A/600N (10baseT, RJ-45). Logging into the card using a web browser, under Configurations tab, the T...

25 comments posted 19yrs

posted by reply

25 comments posted 19yrs posted by reply

Four or Six Port MM LC Fiber PCI-X Cards for Windows??

Does any vendor make a four (preferably six) multimode fiber PCI-X ethernet card for Windows? The adapter receptacle wou...

0 comments posted 19yrs

posted by westes-usc

0 comments posted 19yrs posted by westes-usc

-48VDC PoE 500m Extension

I'm hoping to find a set of extenders that will operate both ends off one end's 48v plant. I think 500m would be a good...

0 comments posted 19yrs

posted by wruffner

0 comments posted 19yrs posted by wruffner

remote mirroring with extreme networks switch

is it possible to configure remote mirroring (port oder VLAN) across a network to another switch? anyone an example by c...

0 comments posted 19yrs

posted by matthias.gruber

0 comments posted 19yrs posted by matthias.gruber

Chassis With Plug In Four Port GigE Switches?

Does any vendor make 2U to 3U enclosure that would take four port 10/100 or gigE copper switches that are totally isola...

0 comments posted 19yrs

posted by westes-usc

0 comments posted 19yrs posted by westes-usc

Allied telesyn & VOIP

anyone know if the AT switches can split out the voice traffic into a separate vlan like ciscos can? some sites only ha...

4 comments posted 19yrs

posted by die.spam

4 comments posted 19yrs posted by die.spam

SMC2804WBR v.2

I have used the above router with anADSL modem in Germany for two years and now want to set it up in the UK. In Germany...

0 comments posted 19yrs

posted by Dylan2003

0 comments posted 19yrs posted by Dylan2003