QOS Setings for ADSL

Ruben · #1 (**permalink**) 01-22-2004, 07:06 AM

What are the best settings for a ADSL connection on the network interface for QOS

The ADSL is 1.5Mb down and 96Kbit UP

I want to shape that the SMTP relay won’t kill the line
And that the internal web server won’t kill the line.

thx

Xeno · #2 (**permalink**) 01-23-2004, 09:50 AM

First of all: Only outgoing traffic can be QoS. So also only outgoing email can be QoS.

1) Enable QoS on the external interface.

2) For "Link BW (kbits)" use a value lower than your real bandwidth. For example 94Kbit. This will prevent you from slowing down your downloads if upload bandwidth is fully used. (That's a normal behaviour if using ADSL).

3) QoS Webserver:
From (Client): Your Webserver
To (Server): Any
Service: Any (you can not set port 80, because outgoing traffic would be source port 80. But you can match on destination port only. So you have to use "Any")
Weight: low
Borrow: borrow

4) SMTP-Relay:
From (Client): External_Interface__
To (Server): Any
Service: SMTP
Weight: low
Borrow: borrow

Cheers
Xeno