08-29-2012 08:57 PM - edited 03-04-2019 05:25 PM
Hi Guys,
One of my routers seems to be running slow, I have done a "show interface" and the interface that appears to be running the ADSL shows the following. To me, it appears that the ADSL is syncing at 8829 Kb/s but the ATM0 interface has been configured to use a maximum of 939 Kb/s (BW 939 Kbit/sec). Is that correct?
Can I change it to the maximum the interface allows?
ATM0/0/0 is up, line protocol is up
Hardware is HWIC-DSLSAR (with Alcatel ADSL Module)
MTU 4470 bytes, sub MTU 4470, BW 939 Kbit/sec, DLY 540 usec,
reliability 255/255, txload 23/255, rxload 216/255
Encapsulation ATM, loopback not set
Encapsulation(s): AAL5 AAL2, PVC mode
23 maximum active VCs, 256 VCs per VP, 1 current VCCs
VC Auto Creation Disabled.
VC idle disconnect time: 300 seconds
Last input 00:31:25, output 00:00:00, output hang never
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: Per VC Queueing
5 minute input rate 1034000 bits/sec, 175 packets/sec
5 minute output rate 85000 bits/sec, 55 packets/sec
363574 packets input, 272762690 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 164 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort
132374 packets output, 26785767 bytes, 0 underruns
0 output errors, 0 collisions, 0 interface resets
0 unknown protocol drops
0 output buffer failures, 0 output buffers swapped out
A "show dsl interface":
ATM0/0/0
Alcatel 20190 chipset information
ATU-R (DS) ATU-C (US)
Modem Status: Showtime (DMTDSL_SHOWTIME)
DSL Mode: ITU G.992.5 (ADSL2+) Annex A
ITU STD NUM: 0x03 0x2
Chip Vendor ID: 'STMI' 'IFTN'
Chip Vendor Specific: 0x0000 0x8277
Chip Vendor Country: 0x0F 0xB5
Modem Vendor ID: 'CSCO' ' '
Modem Vendor Specific: 0x0000 0x0000
Modem Vendor Country: 0xB5 0x00
Serial Number Near: FOC12250RAFCISCO73993206
Serial Number Far: Chip ID: C196 (0)
DFE BOM: DFE3.0 Annex A (1)
Capacity Used: 100% 100%
Noise Margin: -4.0 dB 9.0 dB
Output Power: 9.5 dBm -4.0 dBm
Attenuation: 30.0 dB 16.0 dB
FEC ES Errors: 0 0
ES Errors: 1 0
SES Errors: 1 0
LOSES Errors: 1 6
UES Errors: 0 153
Defect Status: LOM None
Last Fail Code: None
Watchdog Counter: 0xBC
Watchdog Resets: 0
Selftest Result: 0x00
Subfunction: 0x00
Interrupts: 4174 (0 spurious)
PHY Access Err: 0
Activations: 1
LED Status: OFF
LED On Time: 0
LED Off Time: 0
Init FW: init_AMR-3.0.014_no_bist.bin
Operation FW: AMR-3.0.014.bin
FW Source: embedded
FW Version: 3.0.14
DS Channel1 DS Channel0 US Channel1 US Channel0
Speed (kbps): 0 8829 0 939
Cells: 0 7334465 0 5473687
Reed-Solomon EC: 0 0 0 0
CRC Errors: 0 1429 0 0
Header Errors: 0 430 0 0
Total BER: 0E-0 5249E-9
Leakage Average BER: 0E-0 5249E-9
Interleave Delay: 0 41 0 60
ATU-R (DS) ATU-C (US)
Bitswap: enabled enabled
Bitswap success: 0 0
Bitswap failure: 0 0
Thanks,
Dario
Solved! Go to Solution.
08-29-2012 09:06 PM
reliability 255/255, txload 23/255, rxload 216/255
Your DSL is slow because something is coming into your router from the WAN. It's chewing 85% of your bandwidth.
Noise Margin: -4.0 dB 9.0 dB
Aaaaand you have a bad line. -4? That's awful.
08-29-2012 09:07 PM
hi dario,
the bandwidth configured on the ATM interface has no bearing unless you're running some dynamic routing protocol on your network.
but based on your show interface atm0/0/0 output, you've had a high download rate (see rx load)
08-29-2012 09:06 PM
reliability 255/255, txload 23/255, rxload 216/255
Your DSL is slow because something is coming into your router from the WAN. It's chewing 85% of your bandwidth.
Noise Margin: -4.0 dB 9.0 dB
Aaaaand you have a bad line. -4? That's awful.
08-29-2012 09:49 PM
spot on leo! i've always pay attention to DSL attenuation.
dario,
you'll need to engage with your SP on this issue.
08-29-2012 09:56 PM
Thanks John.
08-29-2012 09:07 PM
hi dario,
the bandwidth configured on the ATM interface has no bearing unless you're running some dynamic routing protocol on your network.
but based on your show interface atm0/0/0 output, you've had a high download rate (see rx load)
08-29-2012 09:25 PM
Thanks guys. The bad-connectivity problem is a long standing one and maybe you could help me figure out a solution.
show int Dialer 0
Dialer0 is up, line protocol is up (spoofing)
Hardware is Unknown
Description: ADSL2+ Connection to Internet
Internet address is 203.161.99.68/32
MTU 1450 bytes, BW 56 Kbit/sec, DLY 20000 usec,
reliability 255/255, txload 54/255, rxload 202/255
Encapsulation PPP, loopback not set
Keepalive set (10 sec)
DTR is pulsed for 1 seconds on reset
Interface is bound to Vi1
Last input never, output never, output hang never
Last clearing of "show interface" counters 1d06h
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: weighted fair
Output queue: 0/1000/64/0 (size/max total/threshold/drops)
Conversations 0/0/16 (active/max active/max total)
Reserved Conversations 0/0 (allocated/max allocated)
Available Bandwidth 42 kilobits/sec
5 minute input rate 157000 bits/sec, 36 packets/sec
5 minute output rate 12000 bits/sec, 3 packets/sec
14808702 packets input, 1505222362 bytes
6953355 packets output, 2010317578 bytes
At a first sight it seems that there is not a great internet connection. Is there any way to have a report like this for a time frame shorter than 5 mniutes?
Thanks,
Dario
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