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DSL maxed out? Or config issue?

Good day,  we are getting delay when trying to access web,  at least 5 second delay when going to websites.  speedtest varies from 1.6 to 5.7mB.  Oracle Database long transactions are dropping and needing to be restarted. 

Should  be a 7MB DSL.  

Are the  BW 5000 Kbit/sec, RxBW 7000 Kbit/sec, DLY 20000 usec, correct?  I read these are only QOS related, but no QOS on device.

i#sh int dialer 1

Dialer1 is up, line protocol is up (spoofing)

  Hardware is Unknown

  Description: *** DSL Line; Telco: Xplorrnet; 7MB ADSL;

  Internet address is 206.x.x.x/32

  MTU 1500 bytes, BW 5000 Kbit/sec, RxBW 7000 Kbit/sec, DLY 20000 usec,

     reliability 255/255, txload 20/255, rxload 18/255

  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 02:25:34

  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  0/0/256 (active/max active/max total)

     Reserved Conversations 0/0 (allocated/max allocated)

     Available Bandwidth 3750 kilobits/sec

  5 minute input rate 515000 bits/sec, 116 packets/sec

  5 minute output rate 402000 bits/sec, 105 packets/sec

     1150130 packets input, 661961995 bytes

     1111863 packets output, 371688884 bytes

Bound to:

Virtual-Access1 is up, line protocol is up

  Hardware is Virtual Access interface

  MTU 1500 bytes, BW 5000 Kbit/sec, DLY 20000 usec,

     reliability 255/255, txload 22/255, rxload 27/255

  Encapsulation PPP, LCP Open

  Open: IPCP

  PPPoE vaccess, cloned from Dialer1

  Vaccess status 0x44, loopback not set

  Keepalive set (10 sec)

  DTR is pulsed for 5 seconds on reset

  Interface is bound to Di1 (Encapsulation PPP)

  Last input 00:00:03, output never, output hang never

  Last clearing of "show interface" counters 02:24:55

  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0

  Queueing strategy: fifo

  Output queue: 0/40 (size/max)

  5 minute input rate 540000 bits/sec, 133 packets/sec

  5 minute output rate 436000 bits/sec, 125 packets/sec

     1150184 packets input, 661977650 bytes, 0 no buffer

     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles

     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort

     1112236 packets output, 371818783 bytes, 0 underruns

     0 output errors, 0 collisions, 0 interface resets

     0 unknown protocol drops

     0 output buffer failures, 0 output buffers swapped out

     0 carrier transitions

i#sh int atm 0

ATM0 is up, line protocol is up

  Hardware is MPC ATMSAR (with Alcatel ADSL Module)

  MTU 4470 bytes, sub MTU 4470, BW 576 Kbit/sec, DLY 720 usec,

     reliability 255/255, txload 194/255, rxload 244/255

  Encapsulation ATM, loopback not set

  Encapsulation(s): AAL5  AAL2, PVC mode

  23 maximum active VCs, 1024 VCs per VP, 1 current VCCs

  VC Auto Creation Disabled.

  VC idle disconnect time: 300 seconds

  Last input 02:25:49, 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: 6316

  Queueing strategy: Per VC Queueing

  5 minute input rate 552000 bits/sec, 131 packets/sec

  5 minute output rate 440000 bits/sec, 125 packets/sec

     1157819 packets input, 704180229 bytes, 0 no buffer

     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles

     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort

     1113233 packets output, 405401791 bytes, 0 underruns

     0 output errors, 0 collisions, 0 interface resets

     0 unknown protocol drops

     0 output buffer failures, 0 output buffers swapped out

i#sh atm interface atm 0

Interface ATM0:

AAL enabled:  AAL5   AAL2, Maximum VCs: 23, Current VCCs: 1

VCIs per VPI: 1024,

Max. Datagram Size: 4528

PLIM Type: ADSL - 512Kbps Upstream, DMT, TX clocking: LINE

1850 input, 2 output, 1293339 IN fast, 1094027 OUT fast

Avail bw = 512

Config. is ACTIVE

i#sh ip int brief | i up

FastEthernet0              unassigned      YES NVRAM  up                    up     

FastEthernet0.1            172.x.x.x    YES NVRAM  up                    up     

FastEthernet0.2            10.x.x.x      YES NVRAM  up                    up     

FastEthernet2              unassigned      YES unset  up                    up     

ATM0                       unassigned      YES NVRAM  up                    up     

ATM0.1                     unassigned      YES unset  up                    up     

Vlan1                      172.27.x.x  YES NVRAM  up                    up     

Loopback129                172.27.x.x  YES NVRAM  up                    up     

Tunnel129                  172.27.x.x  YES NVRAM  up                    up     

NVI0                       172.27.x.x    YES unset  up                    up     

Dialer1                    206.x.x.x  YES IPCP   up                    up     

Virtual-Access1            unassigned      YES unset  up                    up 

interface Dialer1

description *** DSL Line; Telco: Xplorrnet; 7MB ADSL; ACCT#119970; Support#8668416001

bandwidth 5000

bandwidth receive 7000

ip address negotiated

ip nat outside

ip nat enable

ip virtual-reassembly

encapsulation ppp

ip tcp adjust-mss 1452

dialer pool 1

no cdp enable

ppp authentication pap callin

ppp pap sent-username xxxxxxxx@xxxxx.net password 7 3429387409213

crypto map SWM_CMAP_1

end

swmwinrtrpri#sh run int atm 0

Building configuration...

Current configuration : 209 bytes

!

interface ATM0

bandwidth 576

no ip address

no ip redirects

no ip unreachables

no ip proxy-arp

ip flow ingress

ip flow egress

ip route-cache flow

no atm ilmi-keepalive

dsl operating-mode auto

end

swmwinrtrpri#sh ver

Cisco IOS Software, C180X Software (C180X-ADVIPSERVICESK9-M), Version 12.4(15)T9, RELEASE SOFTWARE (fc5)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 1986-2009 by Cisco Systems, Inc.

Compiled Tue 28-Apr-09 10:45 by prod_rel_team

ROM: System Bootstrap, Version 12.3(8r)YH8, RELEASE SOFTWARE (fc2)

swmwinrtrpri uptime is 2 hours, 50 minutes

System returned to ROM by power-on

System restarted at 12:05:28 CST Tue Jan 14 2014

System image file is "flash:c180x-advipservicesk9-mz.124-15.T9.bin"

This product contains cryptographic features and is subject to United

States and local country laws governing import, export, transfer and

use. Delivery of Cisco cryptographic products does not imply

third-party authority to import, export, distribute or use encryption.

Importers, exporters, distributors and users are responsible for

compliance with U.S. and local country laws. By using this product you

agree to comply with applicable laws and regulations. If you are unable

to comply with U.S. and local laws, return this product immediately.

A summary of U.S. laws governing Cisco cryptographic products may be found at:

http://www.cisco.com/wwl/export/crypto/tool/stqrg.html

If you require further assistance please contact us by sending email to

export@cisco.com.

Cisco 1801 (MPC8500) processor (revision 0x400) with 118784K/12288K bytes of memory.

Processor board ID FHK103819P4, with hardware revision 0000

9 FastEthernet interfaces

1 ISDN Basic Rate interface

1 ATM interface

31360K bytes of ATA CompactFlash (Read/Write)

Configuration register is 0x2102

Thanks

10 REPLIES
Hall of Fame Super Gold

Re: DSL maxed out? Or config issue?

ATM0 is up, line protocol is up

Hardware is MPC ATMSAR (with Alcatel ADSL Module)

MTU 4470 bytes, sub MTU 4470, BW 576 Kbit/sec, DLY 720 usec,

reliability 255/255, txload 194/255, rxload 244/255

What is the model of your router?

Looks like your DSL link of 7 Mbps is not enough.

New Member

DSL maxed out? Or config issue?

I see that too,  is the ATM0 interface related to the dialer interface?   I see bandwidth on Dialer 1 as 5000kbits,  why does the ATM interface have low BW?  From my undestanding the dialer interface is virtual to get PPPoE going. And the ATM0 is the physical interface? Thanks for the feedback.

ATM0 is up, line protocol is up

Hardware is MPC ATMSAR (with Alcatel ADSL Module)

MTU 4470 bytes, sub MTU 4470, BW 576 Kbit/sec, DLY 720 usec,

reliability 255/255, txload 194/255, rxload 244/255

i#sh int dialer 1

Dialer1 is up, line protocol is up (spoofing)

  Hardware is Unknown

  Description: *** DSL Line; Telco: Xplorrnet; 7MB ADSL;

  Internet address is 206.x.x.x/32

  MTU 1500 bytes, BW 5000 Kbit/sec, RxBW 7000 Kbit/sec, DLY 20000 usec,

     reliability 255/255, txload 20/255, rxload 18/255

New Member

DSL maxed out? Or config issue?

ATM0 has high tx and rx,

ATM0 is up, line protocol is up

  Hardware is MPC ATMSAR (with Alcatel ADSL Module)

  MTU 4470 bytes, sub MTU 4470, BW 576 Kbit/sec, DLY 720 usec,

     reliability 255/255, txload 175/255, rxload 220/255

  Encapsulation ATM, loopback not set

  Encapsulation(s): AAL5  AAL2, PVC mode

  23 maximum active VCs, 1024 VCs per VP, 1 current VCCs

  VC Auto Creation Disabled.

  VC idle disconnect time: 300 seconds

  Last input 1d23h, 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: 53158

  Queueing strategy: Per VC Queueing

  5 minute input rate 498000 bits/sec, 138 packets/sec

  5 minute output rate 397000 bits/sec, 141 packets/sec

     22570119 packets input, 634384451 bytes, 0 no buffer

     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles

     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort

     22057060 packets output, 3522141260 bytes, 0 underruns

     0 output errors, 0 collisions, 0 interface resets

     0 unknown protocol drops

     0 output buffer failures, 0 output buffers swapped out

Dialer1 is up, line protocol is up (spoofing)

  Hardware is Unknown

  Description: *** DSL Line; Telco: Xplorrnet; 7MB ADSL

  Internet address is X.X.X.X

  MTU 1500 bytes, BW 5000 Kbit/sec, RxBW 7000 Kbit/sec, DLY 20000 usec,

     reliability 255/255, txload 15/255, rxload 15/255

  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 1d22h

  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  0/0/256 (active/max active/max total)

     Reserved Conversations 0/0 (allocated/max allocated)

     Available Bandwidth 3750 kilobits/sec

  5 minute input rate 434000 bits/sec, 112 packets/sec

  5 minute output rate 301000 bits/sec, 114 packets/sec

     22476151 packets input, 4121222661 bytes

     22015302 packets output, 2802519072 bytes

Hall of Fame Super Gold

Re: DSL maxed out? Or config issue?

What model is your router?

You may need to configure traffic shapping.  Notice on the ATM interface you have output drops.  This means that the remote end device of the ATM interface is dropping packets.

Cisco Employee

Re: DSL maxed out? Or config issue?

Coleman,

I cheked the configuration and it seems like your active bandwidth is somewhere close to 512kbps.

VCIs per VPI: 1024,

Max. Datagram Size: 4528

PLIM Type: ADSL - 512Kbps Upstream, DMT, TX clocking: LINE

1850 input, 2 output, 1293339 IN fast, 1094027 OUT fast

Avail bw = 512

Config. is ACTIVE

On the dialer interface:-

   Available Bandwidth 3750 kilobits/sec

  5 minute input rate 515000 bits/sec, 116 packets/sec

  5 minute output rate 402000 bits/sec, 105 packets/sec

On virtual access interface:-

Output queue: 0/40 (size/max)

  5 minute input rate 540000 bits/sec, 133 packets/sec

  5 minute output rate 436000 bits/sec, 125 packets/sec

THese 3 results evidently showed that your net bandwidth asllowed acording to the Telco and according to the line rate is not more than .5 megs.

We can enable ATM layer traffic shapping or can enable policing under the dialer interface to privent this.

Please try the following command:-

Policy-map TEST

class class-default

police rate percent 99

Please make sure you change the bandwidth statement under the dialer as 512kbps , else calculation will be done according to the current bandwidth command which is manually 5000 kbps.

interface dialer 1

bandwidth 512000

Apply policy to the dialer:-

interface dialer 1

service-policy out TEST

Once this policy will be configured please take the output of :-

show policy-map interface dialer 1

It will show you the offered rate and drop rate , drop rate will be observed once policer will start polcing above 512.

NEXT ACTION:-

1. Please provide the above outputs (show policy-map int dia 1)

2. show interface dia1

3. Change th hold-queue valus under the dialer to 100 (hold-queue 100 out)

4. Confirm with the telco about the line rate and allowed bandwidth.

_THnak you
Ashish

New Member

DSL maxed out? Or config issue?

Here are the results, I dont see any current drops,  may have to check it later.  Why would the DSL interace ever be at 512k?  Is one interface for upstream vs downstream..?   I know I have heard of 512 k upstream and 5MB download for DSL. Please clarify for understanding.  thanks.

swm#show policy-map interface dialer 1

Dialer1

  Service-policy output: TEST

    Class-map: class-default (match-any)

      54714 packets, 8975000 bytes

      5 minute offered rate 213000 bps, drop rate 0 bps

      Match: any

      police:

          rate 99 %

          rate 506500 bps, burst 15828 bytes

        conformed 54714 packets, 9560818 bytes; actions:

          transmit

        exceeded 0 packets, 0 bytes; actions:

          drop

        conformed 394000 bps, exceed 0 bps

swmwinrtrpri#sh int dia 1                     

Dialer1 is up, line protocol is up (spoofing)

  Hardware is Unknown

  Description: *** DSL Line; Telco: Xplorrnet; 7MB ADSL

  Internet address is 206.XX.XXX.XXX/32

  MTU 1500 bytes, BW 512 Kbit/sec, RxBW 7000 Kbit/sec, DLY 20000 usec,

     reliability 255/255, txload 183/255, rxload 155/255

  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 5d23h

  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0

  Queueing strategy: weighted fair

  Output queue: 0/100/64/0 (size/max total/threshold/drops)

     Conversations  0/0/256 (active/max active/max total)

     Reserved Conversations 0/0 (allocated/max allocated)

     Available Bandwidth 384 kilobits/sec

  5 minute input rate 4261000 bits/sec, 407 packets/sec

  5 minute output rate 368000 bits/sec, 255 packets/sec

     66292230 packets input, 4121136452 bytes

     65724589 packets output, 3828847484 bytes

Bound to:

Virtual-Access1 is up, line protocol is up

  Hardware is Virtual Access interface

  MTU 1500 bytes, BW 5000 Kbit/sec, DLY 20000 usec,

     reliability 255/255, txload 19/255, rxload 213/255

  Encapsulation PPP, LCP Open

  Open: IPCP

  PPPoE vaccess, cloned from Dialer1

  Vaccess status 0x44, loopback not set

  Keepalive set (10 sec)

  DTR is pulsed for 5 seconds on reset

  Interface is bound to Di1 (Encapsulation PPP)

  Last input 00:00:03, output never, output hang never

  Last clearing of "show interface" counters 5d23h

  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0

  Queueing strategy: fifo

  Output queue: 0/40 (size/max)

  5 minute input rate 4190000 bits/sec, 430 packets/sec

  5 minute output rate 378000 bits/sec, 277 packets/sec

     66292456 packets input, 4121247276 bytes, 0 no buffer

     Received 0 broadcasts, 0 runts, 0 giants, 0 throttles

     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort

     65724843 packets output, 3828932426 bytes, 0 underruns

     0 output errors, 0 collisions, 0 interface resets

     0 unknown protocol drops

     0 output buffer failures, 0 output buffers swapped out

     0 carrier transitions

New Member

DSL maxed out? Or config issue?

You could run a " show dsl int atm 0" to see your upstream / downstream more then likely these are not the same.

New Member

DSL maxed out? Or config issue?

swm#show dsl interface atm 0

ATM0

Alcatel 20190 chipset information

                ATU-R (DS)                      ATU-C (US)

Modem Status:    Showtime (DMTDSL_SHOWTIME)

DSL Mode:        ITU G.992.1 (G.DMT) Annex A

ITU STD NUM:     0x03                            0x2

Vendor ID:       'STMI'                          'BDCM'

Vendor Specific: 0x0000                          0xA196

Vendor Country:  0x0F                            0xB5

Chip ID:         C196 (0)

DFE BOM:         DFE3.0 Annex A (1)

Capacity Used:   55%                             49%

Noise Margin:    22.0 dB                         23.0 dB

Output Power:    19.0 dBm                        12.0 dBm

Attenuation:     29.0 dB                         18.0 dB

Defect Status:   None                            None                       

Last Fail Code:  None

Watchdog Counter: 0xDF

Watchdog Resets: 0

Selftest Result: 0x00

Subfunction:     0x00

Interrupts:      8258 (0 spurious)

PHY Access Err:  0

Activations:     1

LED Status:      ON

LED On Time:     100

LED Off Time:    100

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

                 Interleave             Fast    Interleave              Fast

Speed (kbps):          5760                0           512                 0

Cells:            898508338                0     627339511                 0

Reed-Solomon EC:          0                0             0                 0

CRC Errors:               0                0             1                 0

Header Errors:            0                0             0                 0

Total BER:                0E-0           0E-0

Leakage Average BER:      0E-0           0E-0

                        ATU-R (DS)      ATU-C (US)

Bitswap:               enabled            enabled

Bitswap success:          0                   0

Bitswap failure:          0                   0

LOM Monitoring : Disabled

DMT Bits Per Bin

000: 0 0 0 0 0 0 0 0 3 4 6 6 6 6 7 7

010: 7 7 8 8 8 8 7 7 7 7 6 6 6 5 5 5

020: 0 6 7 8 8 8 8 8 9 9 9 9 9 9 9 9

030: 9 9 9 9 8 8 8 8 8 8 8 8 8 8 9 9

040: 0 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9

050: 2 9 9 9 9 9 9 8 9 8 9 8 8 9 8 9

060: 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8

070: 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8

080: 8 8 8 8 7 8 7 7 7 7 7 7 7 7 7 7

090: 7 7 7 7 7 7 7 7 7 7 7 7 7 7 6 7

0A0: 7 7 7 7 7 7 7 7 7 6 7 7 7 7 7 7

0B0: 7 6 6 7 6 7 7 7 6 6 6 6 6 6 6 6

0C0: 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6 6

0D0: 6 6 6 6 6 5 6 6 5 6 6 5 4 5 5 5

0E0: 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5

0F0: 5 5 5 5 5 5 5 5 5 5 5 5 5 4 4 4

DSL: Training log buffer capability is not enabled

New Member

Re: DSL maxed out? Or config issue?

This would be your downstream speed  5760 and your upstream is 512k.

You could check with your telco if they have a dsl profile with better upstream.

Hall of Fame Super Gold

Re: DSL maxed out? Or config issue?

Noise Margin:    22.0 dB                         23.0 dB

Output Power:    19.0 dBm                        12.0 dBm

Attenuation:     29.0 dB                         18.0 dB

Talk to your ISP and get them to sort this problem out.  You've got a bad line.  Attenuation should be 20 dB and BELOW.

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