It sounds like my issue, i'll have to get the cable provider to change
the settings as they won't allow me access into the modem.
This is a Motorola SB6580G in bridge mode.
Adam
On 9/12/2013 3:03 PM, Bao Ha wrote:
We had an issue with a Comcast SMCD3G small business modem earlier
with one of our devices. With autodetect on both sides, we only get
about 10-15 mbps throughput out of a 50mbps circuit. A PC connected
directly to the modem will get the full speed, however.
By forcing the Comcast modem to do 100 mbps Fast Ethernet, Full-Duplex
and the pfSense device to auto-detect, we were able to get the full
speed. I am not sure it is relevant or not to your case. I think it
depends on the PHY, and there might be some incompatibilities at the
physical layer. Our device has two lowly RTL8100B Realtek 10/100 Fast
Ethernet ports, and that's why we only force 100m/Full-Duplex on the
Comcast. Forcing on our device does no good.
On Thu, Sep 12, 2013 at 11:11 AM, Adam Piasecki
<[email protected] <mailto:[email protected]>> wrote:
The switch internally to the LAN Cisco 2960, i've pushed way more
through it then what i'm doing here, it's been installed for a
couple of years without a problem. The CPU is only at 15-20%. The
WAN is a direct connection from the pfsense to the cable modem.
All my NICs in the pfsense are (em). Running 2.0.1. I'm going to
upgrade and swap the pfSense to 2.0.3 just to eliminate any faulty
hardware/software.
On 9/12/2013 2:03 PM, Christian Borchert wrote:
What's the CPU and RAM utilization on the switch? What's its
spec'd packet forward rate?
It sounds to me like this is where the problem is.
Sent via BlackBerry from T-Mobile
-----Original Message-----
From: Adam Piasecki <[email protected]
<mailto:[email protected]>>
Sender: [email protected]: Thu, 12 Sep 2013
13:40:33
To: <[email protected] <mailto:[email protected]>>
Reply-To: pfSense support and discussion
<[email protected] <mailto:[email protected]>>
Subject: Re: [pfSense] pfSense and Cable Modem Throughput
On 9/12/2013 1:25 PM, Matt Smith wrote:
On Sep 12, 2013, at 10:28 AM, Adam Piasecki
<[email protected]
<mailto:[email protected]>> wrote:
First I'm almost certain this is a cable
modem/provider problem. We have a 20mb ethernet
circuit that works fine with the same pfSense.
We upgraded to a 100/10mb cable modem, when we put
this on the WAN of the pfsense, we are getting major
packet loss during peak times, and speed test sites
that won't even load. Non-peak times we get no packet
loss, good speed tests (50+mb)
The problem I'm having is that when we take the
pfSense out and plug a PC directly into the cable
modem, the speedtests look fine and the dropped
packets go away. Both during peak times and non-peak.
My thought is the number of packets going over the
cable modem with the pfSense is a lot greater then
just one PC doing a speedtest, and the cable modem
can't handle it. We have about 100 clients behind the
pfSense trying to access the internet during peak
times. The traffic graphs on pfSense only indicate we
are doing 5-10mbs download and 1-5 upload, so we are
no where near maxing out the cable modem bandwidth wise.
I've checked wan ethernet settings 1gig full duplex,
no collisions or errors on the pfSense side. I don't
see any problems in the log, we are not doing any
traffic shaping.
What's the MTU set to on the WAN interface of the pfsense
box? The cable modem may be encapsulating traffic in PPP
or doing some other form of tunneling. You might check if
large packets are being dropped somewhere upstream. You
can run ping with a large packet size and the do not
fragment bit set to check this. E.g. 'ping -s 1472 -D
<some_internet_host>'.
-Matt Smith
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Okay, i'll try this, it's 1500 the default.
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--
Best Regards.
Bao C. Ha
Hacom - Embedded Systems and Appliances
http://www.hacom.net
voice: (714) 564-9932
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