Network organization

Submitted by tarvid on Tue, 2008/06/17 - 17:09.

Three hardware zones

  • DMZ - between Comcast cable modem and hecate, horace, badday, pbx, etc
  • NOC - everything south of bench room
  • WAR - Grayson St to Bench room

One 3com router for each

Bookmark/Search this post with:
  • Delicious
  • Digg
  • StumbleUpon
  • Propeller
  • Reddit
  • Magnoliacom
  • Newsvine
  • Furl
  • Facebook
  • Google
  • Yahoo
‹ NTOP 3com switches ›

Air?

Submitted by DeepGeek on Tue, 2008/06/17 - 20:09.
I would suggest AIR is a distinct zone to be mixed with neither of NOC nor DMZ — perhaps AIR could share in WAR. Maybe FIRE?

Physical vs. Logical

Submitted by tarvid on Wed, 2008/06/18 - 05:52.

Random thoughts.

Network design is influenced by a number of factors physical and logical.

We have the opportunity to segment the network physically with new tools.

The 3com managed switches are inexpensive on the used market and provide 24 ports with management and RMON (SNMP).

http://search.ebay.com/search/search.dll?from=R40&_trksid=m37&satitle=3c...

Two of the three switches have fiber ports and we could benefit from the experience of coupling those as an internal network.

I think 100' cables are generally available which would couple front and back (NOC and WAR). http://cgi.ebay.com/Fiber-optic-data-cable-w-connectors-100-Ft_W0QQitemZ...

In the interim we may be able to bond 100 Base TX runs.

We have 5 usable public IP addresses and 4 ports on the cable router. With the impending rollup, 4 may be enough. DHCP from Comcast seems to work so the Comcast side may have more candidates.

Mikrotik as a router forms a physical and logical zone natively. Bridging directly onto either the local LAN or Comcast has no obvious benefits to me.

The 3COM switches support VLANs but I have no compelling application for them.

http://hecate.ls.net:3000/ - ntop - is an obvious place to gather statistics. I think the 3COM switches will cooperate via RMON