VS-2400S 24 Ports VDSL2 Managed IP DSLAM with POTS splitter USER
’S MANUAL Ver.A3
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3. Symptom:
Upstream bandwidth control failed.
Cause:
NIC(Networking Interface Card) does not have flow control function.
Solution:
Be sure the NIC(
Networking Interface Card
) supports flow control function.
4. Question:
The customer reported that bandwidth control did not work in either direction when the port was set
to 1 on the ingress and 1 on the Down(egress). One of our new HP laptops should bandwidth control
at around 125K on the download, but around 1.7Mbps on the upload. On my laptop, it was around
100K on the download and 225K on the upload. Is there a reason why we are seeing such varied
results and has there been any other reported problem with this feature lately?
Answer:
Regarding our VDSL2 IP DSLAM' principle of bandwidth control, which must rely on flow control to limit
bandwidth over hardware, as long as client side doesn't support flow control, the upstream bandwidth control
is invalid, so for this case, client side must support flow control function.
5. Question:
Why VDSL2 configure change invalid ?
Answer:
After any change to VDSL2 configure. Line must be deactivated then activated once or reboot, then new
configure will be valid.
6. Question:
Is that possible to use ADSL2+ modems with the VDSL2 IP DSLAM ?
Answer:
Please Note that it is not possible to use ADSL2+ modems with the VDSL2 IP DSLAM, since ADSL2+ is
based on ATM frame and our VDSL2 IP DSLAM is based on EFM frame. Two frames are not compatible.
