Need a steer on what to do next

[jjamknight]

Hi 

We have some issues in the area, and in all fairness I'm very happy with the level of support given from Virgin, They reacted quickly and within a couple of hours we had a Virgin maintenance team on the road investigating (outstanding service) 

and we are back up and running, albeit at a slower connection. We normally see +550mb. The speed over the last 24hrs not greater then 90mb.

There was a second issue reported on the network and virgin and that was resolved this afternoon, during that issue we did see intermittent packet loss and increased latency (200ms+) that seems to have now improved but the speed hasn't. 

After area network issues do Virgin throttle back bandwidth to get people back up and running and then increase the bandwidth? or should i raise this with virgin as we are not getting the bandwidth. 

I think all the hub values are OK (imo) but let me know what you think. 

Downstream bonded channels

Channel Frequency (Hz) Power (dBmV) SNR (dB) Modulation Channel ID

1	203000000	0	37	256 qam	9
2	211000000	-0.2	37	256 qam	10
3	219000000	-0.5	37	256 qam	11
4	227000000	-1	38	256 qam	12
5	235000000	-1.4	37	256 qam	13
6	243000000	-1.7	37	256 qam	14
7	251000000	-1.5	37	256 qam	15
8	259000000	-1.7	38	256 qam	16
9	267000000	-1.4	37	256 qam	17
10	275000000	-0.7	37	256 qam	18
11	283000000	0	38	256 qam	19
12	291000000	-0.7	37	256 qam	20
13	299000000	-1	38	256 qam	21
14	307000000	-1.2	38	256 qam	22
15	315000000	-1	38	256 qam	23
16	323000000	-1	38	256 qam	24
17	331000000	-1	38	256 qam	25
18	339000000	-0.7	38	256 qam	26
19	347000000	-0.4	38	256 qam	27
20	355000000	-0.9	38	256 qam	28
21	363000000	-1.5	38	256 qam	29
22	371000000	-1.9	38	256 qam	30
23	379000000	-1.7	38	256 qam	31
24	387000000	-1.5	38	256 qam	32

Downstream bonded channels

Channel Locked Status RxMER (dB) Pre RS Errors Post RS Errors

1	Locked	37.6	10	0
2	Locked	37.6	20	0
3	Locked	37.6	8	0
4	Locked	38.6	15	0
5	Locked	37.6	19	0
6	Locked	37.6	16	0
7	Locked	37.6	24	0
8	Locked	38.6	12	0
9	Locked	37.6	10	0
10	Locked	37.6	10	0
11	Locked	38.6	12	0
12	Locked	37.6	8	0
13	Locked	38.6	19	0
14	Locked	38.6	16	0
15	Locked	38.6	8	0
16	Locked	38.6	21	0
17	Locked	38.6	64	0
18	Locked	38.6	8	0
19	Locked	38.6	22	0
20	Locked	38.6	21	0
21	Locked	38.6	10	0
22	Locked	38.6	9	0
23	Locked	38.9	10	0
24	Locked	38.9	0	0

Upstream bonded channels

Channel Frequency (Hz) Power (dBmV) Symbol Rate (ksps) Modulation Channel ID

1	53700000	44.3	5120	64 qam	2
2	46200000	43.5	5120	64 qam	3
3	39400000	43.5	5120	64 qam	4
4	60300000	44.5	5120	64 qam	1

[jbrennand]

BQM not looking good. stats posted look ok - can you also post the Upstream T errors table and also your network logs.

check on   0800 561 0061 whether the issues have been fixed yet

[jjamknight]

Thanks for the reply.. 

Still no change in speed c70mb, here are the T errors and logs. I would apperciate your thoughts?

Upstream bonded channels

Channel	Channel Type	T1 Timeouts	T2 Timeouts	T3 Timeouts	T4 Timeouts
1	ATDMA	0	0	1	0
2	ATDMA	0	0	1	0
3	ATDMA	0	0	1	0
4	ATDMA	0	0	1	0

Time	Priority	Description
27/08/2021 17:32:24	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
27/08/2021 09:34:21	notice	LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
27/08/2021 09:34:13	Warning!	LAN login FAILED : Incorrect Username / Password / ConnectionType;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
27/08/2021 09:02:27	critical	Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
27/08/2021 09:02:25	Warning!	Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
27/08/2021 09:02:20	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
27/08/2021 09:02:20	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
27/08/2021 09:02:20	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
25/08/2021 09:46:36	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
01/01/1970 02:49:56	notice	LAN login Success;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
24/08/2021 11:34:37	critical	Received Response to Broadcast Maintenance Request, But no Unicast Maintenance opportunities received - T4 time out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
24/08/2021 11:34:35	Warning!	Lost MDD Timeout;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
24/08/2021 11:34:30	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
24/08/2021 11:34:30	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
24/08/2021 11:34:30	critical	SYNC Timing Synchronization failure - Loss of Sync;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
24/08/2021 11:34:30	Warning!	RCS Partial Service;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
22/08/2021 08:22:25	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
21/08/2021 09:12:44	Error	DHCP RENEW WARNING - Field invalid in response v4 option;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;
18/08/2021 07:05:4	critical	No Ranging Response received - T3 time-out;CM-MAC=**:**:**:**:**:**;CMTS-MAC=**:**:**:**:**:**;CM-QOS=1.1;CM-VER=3.0;

updated chart for the last 24hrs, looking a lot better but losing packets

[jbrennand · Accepted solution]

Still showing dropped packets but nothing obvious in the stats to me.

Can you say some more about the connection. Are you in modem mode or normal router mode? What devices have you got connected on ethernet cables?

Speeds hovering just under 100 is always suspicious to me if on an ethernet connection - is that how you are testing?

[jjamknight]

interesting, i hadn't considered that 🙂 Ports (switch) are all at 1gb, however the firewall (ASA) is auto on that interface to the virginmodem (i'll need to look up the commands to dig a little deeper into the actual speed). I also have a patch board so i will check the cabling (i did play around with the virgin modem connection). I have been testing (google speed test and Thinkboardband)  via a PC and iMac off the main switch. 

I will reseat cables, check the patch boards and reseat the patch cables and then perform a restart of the Hub and then the ASA. I suspect you are right will find our and confirm in a couple of hours. 

Thank you!

[jjamknight]

Bingo, the interface is running at 100mb. I will do the reset and i suspect that will resolve the issue. I will confirm 

HomeASA# show interface stat
Interface GigabitEthernet0/0 "outside", is up, line protocol is up
Hardware is i82574L rev00, BW 1000 Mbps, DLY 10 usec
Auto-Duplex(Full-duplex), Auto-Speed(100 Mbps)
Input flow control is unsupported, output flow control is off
Description: HomeWAN
MAC address ecbd.1daf.0d7e, MTU 1500

9202868 packets input, 9988053663 bytes, 0 no buffer
Received 132675 broadcasts, 0 runts, 0 giants
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
0 pause input, 0 resume input
0 L2 decode drops
4264743 packets output, 1613457422 bytes, 0 underruns
0 pause output, 0 resume output
0 output errors, 0 collisions, 1 interface resets
0 late collisions, 0 deferred
0 input reset drops, 0 output reset drops
input queue (blocks free curr/low): hardware (500/451)
output queue (blocks free curr/low): hardware (469/427)
Traffic Statistics for "outside":
9202868 packets input, 9821760028 bytes
4264743 packets output, 1535380835 bytes
22051 packets dropped
1 minute input rate 582 pkts/sec, 480842 bytes/sec
1 minute output rate 258 pkts/sec, 33610 bytes/sec

[jjamknight]

Thank you for your help John. My interfaces to the hub was running at 100mb. A reseating of the patch cables at the patch board corrected the issue and the interface is now up at 1gb. Tested the line speed and back up to 550mb.

HomeASA# show int gigabitEthernet 0/0
Interface GigabitEthernet0/0 "outside", is up, line protocol is up
Hardware is i82574L rev00, BW 1000 Mbps, DLY 10 usec
Auto-Duplex(Full-duplex), Auto-Speed(1000 Mbps)