Ethernet LAN

4 Port 1000 MB "Hub"

Is there anyone that is aware of a low cost 4 port 10/100/1000 MB hub that is available? There seems to be a lot of swi...

12 comments posted 16yrs

posted by <nospam

12 comments posted 16yrs posted by <nospam

STP - bridge ID

Hello I'm reading the STP defined by 802.1d and can't understand one thing. All bridges are is uniquely identified by 6...

3 comments posted 16yrs

posted by mark_cruzNOTFORSPAM

3 comments posted 16yrs posted by mark_cruzNOTFORSPAM

STP implementations

Hello I hope my question will be found in the ocean of spam in this group. Linux kernel has its own implementation of t...

1 comments posted 16yrs

posted by mark_cruzNOTFORSPAM

1 comments posted 16yrs posted by mark_cruzNOTFORSPAM

very basic question about MAC addresses - globally unique identifying bit

I'm confused, and would appreciate some guidance. I'm reading "The All New Switch Book" (Seifert & Edwards), and I'm on...

3 comments posted 16yrs

posted by mhornberger

3 comments posted 16yrs posted by mhornberger

Putting a switch between router and cable modem

Hello, Here is my current config (downstairs in my basement) : Coax cable into cable modem (this is the only cable acce...

13 comments posted 16yrs

posted by kmclaurin1959

13 comments posted 16yrs posted by kmclaurin1959

Spanning Tree Algorithm

Hi All, I have basically understood the basics of the Spanning Tree Algorithm, but is there some website which thorough...

0 comments posted 16yrs

posted by rohit231983

0 comments posted 16yrs posted by rohit231983

What happens when I ping my own WAN IP from LAN side?

If from within my LAN, I ping my WAN ip, how is the ping packet routed to the destination? Does it go out of the router...

4 comments posted 17yrs

posted by nospam

4 comments posted 17yrs posted by nospam

MTU for cable modem connection to shaw.ca

The interface to my cable modem connection to shaw.ca here on Pender Island has MTU = 576 whereas I would have expected...

14 comments posted 17yrs

posted by peasthope

14 comments posted 17yrs posted by peasthope

Why 4 pairs in 100Base-T

Connections between desktop computers and hubs/routers customarily us RJ45 copnnectors and cat5 cable carrying 4 twiste...

8 comments posted 17yrs

posted by chl

8 comments posted 17yrs posted by chl

IGMP fast-leave

Hello, trying to understand how "fast-leave" works; I do realize it's related to IGMP Leave messages and how they are p...

2 comments posted 17yrs

posted by mark_cruzNOTFORSPAM

2 comments posted 17yrs posted by mark_cruzNOTFORSPAM

networking middleware

Hello there are a few companies out there (for example, "IPinfusion" and its ZebOS platform) delivering , as they call...

0 comments posted 17yrs

posted by mark_cruzNOTFORSPAM

0 comments posted 17yrs posted by mark_cruzNOTFORSPAM

multicast address

Hello studying multicasting and IGMP specifically, and have a few points I don't clearly understand. First of all why d...

2 comments posted 17yrs

posted by mark_cruzNOTFORSPAM

2 comments posted 17yrs posted by mark_cruzNOTFORSPAM

STP cost

Sir, Can you pl tell me the formula for calculating STP cost? How cost of 19 is arrived for 100Mbps interface & 4 is arr...

2 comments posted 17yrs

posted by zatheesh2k7

2 comments posted 17yrs posted by zatheesh2k7

rate limits

Hello many L2 (and likely L3+) switches have such a feature as rate limiting. It seems such feature is applied per port...

3 comments posted 17yrs

posted by mark_cruzNOTFORSPAM

3 comments posted 17yrs posted by mark_cruzNOTFORSPAM

confused about PHY and transeiver

Hello I'm confused about definitions of PHY and Ethernet transeiver. They ain't the same, as I assume. Transeiver as I...

5 comments posted 17yrs

posted by mark_cruzNOTFORSPAM

5 comments posted 17yrs posted by mark_cruzNOTFORSPAM