Hi, a friend is running 8.102 with 3 NICs:
1. INT LAN
2. EXT1 (cable modem, 15mbps in, 2mbps out)
3. EXT2 (cable modem, 15mbps in, 2mbps out)
The external lines are configured to use Uplink Balancing (both interfaces are Active), and there are 3 multipath rules for different computers in the LAN to use ext1 or 2 for outgoing traffic.
All of this is working fine so far.
However, there are some minor issues with his VOIP line (SIP connection to Vonage).
I tried setting up the SIP proxy, and setting up QOS for VOIP...
I set up QOS for each EXT interface with 15mbps in and 2mpbs UP, and I added a bandwidth pool for VOIP with Guaranteed Bandwidth: 120 kbits/s
This immediately resulted in choppy voice service. I disabled the SIP/VOIP Security and voice quality went back to normal.
I left it that way (SIP proxy Off, QOS On), and 2 days later he reported that he was only getting about 1/2 of the 15mbps he should be getting. He disabled QOS on both interfaces and it's back to as it was before.
Question:
Is there any known issue with using QOS or the SIP proxy on multipath and/or uplink balancing?
Thanks,
Barry
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