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RE: [Karlnet] Bandwidth problems

To: <karlnet@WISPNotes.com>
Subject: RE: [Karlnet] Bandwidth problems
From: "Tony " <tonylist@wwwbiz.com>
Reply-to: karlnet@WISPNotes.com
Date: Mon, 15 Jul 2002 23:48:26 -0400
List-post: <mailto:karlnet@WISPNotes.com>
Travis,

When you unplug the inet connection, of course, the traffic will be
limited to TCP requests coming from the clients so this could be a
problem with how the traffic coming into the network, IP related issues,
or possible a bug but this is at the end of the list ;). Few questions:

        1. At the CPE, routed or bridged?
        2. Are you blocking all MACs except for your customers at the
AP?
        3. The RG-1000 at the router is this going directly into the
router or is there a local switch, if there is a switch try going
directly to the router.
        4. "Shut off certain customers" are you doing this at the
customer RGs? If not, disable the Ethernet port and see what happens.]
        5. Put everyone at 64k on both the up and down links, and watch
the statically data on dropped packets see if you notices a different.
        6. If bridged have you sniffed the network to make sure there is
no IP duplication.



Sincerely
Tony Morella
Demarc Technology Group
Office: 908-996-7995
Cell: 908-246-9170
Fax: 908-847-0202
email: tony@demarctech.com
http://www.demarctech.com
Wireless Solution Provider


-----Original Message-----
From: karlnet-admin@WISPNotes.com [mailto:karlnet-admin@WISPNotes.com]
On Behalf Of Travis Brown
Sent: Monday, July 15, 2002 4:01 PM
To: karlnet@WISPNotes.com
Subject: [Karlnet] Bandwidth problems
Importance: High


I'm hoping I can get some really good and helpful suggestions on this
one. It's killing me. 
Here's the scoop: 
Router --> link --> base --> customers 
-Router represents my Cisco boundary router and T1's 
-Link is a series of bridged RG-1000's running Karlnet 4.02 
-Base is an AP-1000 running 4.02 as well 
-Customers (about 35 of them) that are almost all RG-1000's running a
mix of 3.88 and up 
Ping the link: 10 ms 
Ping the base: 20 ms 
Ping a customer: 1000 - 3000 ms, throughput is garbage 
Shut off certain customers and the speeds get better for a bit. I
guarantee at 5 p.m. tonight, the problem goes away. It'll be back
tomorrow. This started Friday, no significant changes to the network
last week, but I've seen this problem before.
Odd side-effect: Unplug our Internet feed, the times all drop to 20-30
ms. Plug it back in, the pings slowly climb back to 1-3 sec.
I have three other bases that are not affected by this problem, all with
less than 20 customers. 
This is a super bad situation that I MUST get resolved or I'm toast.
Thanks in advance for an help you can offer. 
Travis 
-- 
============================== 
  M. Travis Brown, MCSE 
  Network Systems Engineer 
  NetWave Internet 
  434.386.0656 
  travis@netwaveva.com 
  http://www.netwaveinternet.com 
============================== 


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