OFDM channel changed with Maintenance over night

computerman2 Premium Member join:2002-04-20 Trenton, MI	computerman2 Premium Member 2024-Jul-11 8:23 am OFDM channel changed with Maintenance over night Noticed this morning the OFDM Channel changed from 157 to 193, as well as Public Ipv4 IP changed as well
	· actions · 2024-Jul-11 8:23 am ·
hex0101 join:2024-06-12	hex0101 Member 2024-Jul-11 8:51 am How are the upstream channels looking? Have you had any notice of the mid-split upgrades? Your Public IP address changed along with the downstream OFDM channel ID, you were likely switched over to vCMTS.
	· actions · 2024-Jul-11 8:51 am ·
computerman2 Premium Member join:2002-04-20 Trenton, MI	computerman2 Premium Member 2024-Jul-11 8:53 am No notice as yet on Mid Split upgrade, don't see upstream ofdm as yet
	· actions · 2024-Jul-11 8:53 am ·
badtlc4 join:2008-01-17 Olathe, KS	badtlc4 Member 2024-Jul-11 9:22 am you wont see OFDMA channel until that OFDM channels moves to 957Mhz.
	· actions · 2024-Jul-11 9:22 am ·
det721 join:2020-08-15	det721 to computerman2 Member 2024-Jul-11 11:40 am to computerman2 Same thing happened here recently in Monroe Mi. OFDM is now channel 193 at 690 MHZ and public IP address changed and SNR's have improved some most channels sit at 44 snr. Thats about it everything works as before.
	· actions · 2024-Jul-11 11:40 am ·
badtlc4 join:2008-01-17 Olathe, KS	badtlc4 Member 2024-Jul-11 11:44 am said by det721: Same thing happened here recently in Monroe Mi. OFDM is now channel 193 at 690 MHZ and public IP address changed and SNR's have improved some most channels sit at 44 snr. Thats about it everything works as before. Not 100% sure but I think that is basically what happens when the node is upgraded and you are now on vCMTS.
	· actions · 2024-Jul-11 11:44 am ·
det721 join:2020-08-15	det721 Member 2024-Jul-11 1:38 pm said by badtlc4: Not 100% sure but I think that is basically what happens when the node is upgraded and you are now on vCMTS. Yep confirmed i am now on a Harmomic vcmts.
	· actions · 2024-Jul-11 1:38 pm ·
hex0101 join:2024-06-12	hex0101 to badtlc4 Member 2024-Jul-11 2:41 pm to badtlc4 I've had the same situation since at least 2021, but on an NC4000 node. Harmonic CMTS MAC, OFDM downstream ID 193, 690 Mhz, 6 upstream channels. Used to be 4 or 5, but since Feb 2023 I have had 6. No OFDMA upstream. The downstream SNR's are all registering at about 44 SNR. The only thing I can think of is that I am on a R-PHY shelf. A vCMTS feeds the shelf and the shelf feeds legacy analog nodes. This would allow Comcast to decommision the big iron CMTS and free up hub space and HVAC/power requirements, and maybe save on the CMTS licensing costs. All while being able to re-use the legacy nodes and amplifiers that are out in the field.
	· actions · 2024-Jul-11 2:41 pm ·

ClockerXP join:2001-05-24 Sterling Heights, MI	ClockerXP to det721 Member 2024-Jul-11 3:00 pm to det721 How do you confirm you are on a Harmonic vcmts?
	· actions · 2024-Jul-11 3:00 pm ·
badtlc4 join:2008-01-17 Olathe, KS	badtlc4 to hex0101 Member 2024-Jul-11 3:03 pm to hex0101 said by hex0101: I've had the same situation since at least 2021, but on an NC4000 node. Harmonic CMTS MAC, OFDM downstream ID 193, 690 Mhz, 6 upstream channels. Used to be 4 or 5, but since Feb 2023 I have had 6. No OFDMA upstream. The downstream SNR's are all registering at about 44 SNR. The only thing I can think of is that I am on a R-PHY shelf. A vCMTS feeds the shelf and the shelf feeds legacy analog nodes. This would allow Comcast to decommision the big iron CMTS and free up hub space and HVAC/power requirements, and maybe save on the CMTS licensing costs. All while being able to re-use the legacy nodes and amplifiers that are out in the field. There may also just be some other components in your stream that are not upgraded. There have been multiple reports of node upgrades and then months go by waiting for the amp upgrades needed. They can do mid-split with R-phy shelf but I dont know that we have seen any confirmation of it happening in the real world on this site.
	· actions · 2024-Jul-11 3:03 pm ·
det721 join:2020-08-15 1 edit	det721 to ClockerXP Member 2024-Jul-11 4:07 pm to ClockerXP Ran the mac address of the of the vCMTS. Comes back Harmonic. I am almost certain the one before was the Arris E6000.
	· actions · 2024-Jul-11 4:07 pm ·

OFDM channel changed with Maintenance over night - Comcast XFINITY (2024)

OFDM channel changed with Maintenance over night

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