what open source solutions would you suggest for the following:
- i have 3 bonded T1s but suspect i'm paying unnecessarily for 2/3 of it. i want to test LAN performance at 1 T1 before telling isp to cut 2/3 of it. obviously i cant just unplug 2 of the T1s. so what FLOSS solutions are there to tourniquet my bandwidth to test it at 1 T1? simple LAN w/ ubuntu lucid on all systems, 1 server acting as router/dhcp/bind/fw/nfs/etc plugged into switch w/ isp router.
- how do i implement QoS on above LAN/network? i use trixbox/asterisk based voip on centos server (but can move to ubuntu), so i want to give the voice packets priority. or do whatever i need to in order to improve voice quality - i imagine that means give voice packets priority? do i do something on the voip server, LAN server, the clients, or all of them? what exactly do i do on them? clients use either twinkle softphone or cisco 7960 ip phones. isp is our sip provider.
links/hints/key words to google/or any other guidance/feedback invited. gracias!