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T1 very slow

Hi.  I have a T1 MPLS circuit that is running extreamly slow.  AT&T has run a few stress tests on it and says of course no problems.  I have taken our server and plugged into fe0/0 on the router.  Running a speakeasy speed test, we get .58 download and 1.41MB upload?  A T1 should be equal on both dl and ul.  The Fe0/0 is set to speed auto/auto.  The network card on the server is set to auto/auto.  At this point, it is indicating a problem with the router a Cisco 1841 with CSU WIC or the T1.  The server is connecting at 100MB.  What could cause this as going through the router itself, we ruled out our switch and building wiring.
Thanks.
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Heath Calhoun
Asked:
Heath Calhoun
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1 Solution
 
bill30Commented:
Have you closed all connectivity except to your one computer?  Speakeasy speed test only tests what bandwidth is available.  You may have a computer on your network playing pandora or something streaming that is causing the drop in your download speed.
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Heath CalhounAuthor Commented:
I have taken our server and plugged into fe0/0 on the router.
This computer was plugged directly into the router fe0/0 port bypassing and taking out all other equipment in the office.
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BrianCommented:
Are you using traffic shaping at all on your Cisco or have you checked if it is on? Does your setup allow you to bypass the Cisco altogether for testing?
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jon1966Commented:
What ATT COS Profile was ordered for this circuit?  Can you post the router config and a "sh int f0/0" output?
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Heath CalhounAuthor Commented:
we do not do anything to limit the bandwidth and this is turned off.  
ran the spped test at stanford.edu network Diagnostic tester and received the following:
TCP/Web 100 Network Diagnostic Tool v5.5.4a
Connected to:  netspeed1.stanford.edu - using IPv4 address
Checking for Middleboxes - Done
Checking for firewalls - Done
running 10s outbound test (client to server C2S - 1.09MB/s
running 10s inbound test (server to client S2C - 299.03 kb/s
S2C - Packet queuing detected

As this router is used in a law enforcement enviroment I can not post the config.
Seeing if can get the COS Profile.
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jon1966Commented:
Please post the sh int f0/0 and sterilize the IP / password info from the config.
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Heath CalhounAuthor Commented:
FastEthernet0/0 is up, line protocol is up
  Hardware is Gt96k FE, address is 001e.7a03.58a6 (bia 001e.7a03.58a6)
  Description: SITE LAN [do not change]
  Internet address is 10.75.64.1/20
  MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, 100Mb/s, 100BaseTX/FX
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:04, output 00:00:00, output hang never
  Last clearing of "show interface" counters 3w0d
  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 4000 bits/sec, 2 packets/sec
  5 minute output rate 57000 bits/sec, 1 packets/sec
     10114926 packets input, 2151248021 bytes
     Received 347145 broadcasts, 0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog
     0 input packets with dribble condition detected
     9275961 packets output, 3231926108 bytes, 0 underruns
     0 output errors, 0 collisions, 4 interface resets
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier
     0 output buffer failures, 0 output buffers swapped out
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jon1966Commented:
I can't help you without the config and COS profile, so my last piece of advice is for you to go into the ATT Business Direct Portal, and figure out your COS profile, look at COS drops (if any) and figure out which class your traffic is dropping into.  Most likely your speed test fell into COS2,3,4 or default.  Remember that COS is configured separately for ingress and egress so that may affect, and also your outbound QOS config, the difference observed during the speed testing.  I would run WAN killer or similar between a workstation and the remote CER interface.
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BrianCommented:
Have you tried scheduling the test to run overnight or a non peak time. The server to client queuing would make me wonder if the T1 is getting bogged down upstream from you. Of course there is a long list of reasons for queuing like that, but just a thought. Did AT&T do a speed test or just a link quality and functionality test?
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Heath CalhounAuthor Commented:
AT&T has run stress tests on the circuit after hours, reporting no problems.  Don't think they have run a speed test on int.
Am checking to see if I can get the COS profile.  As the router configs have been listed as law enforcement sensitive, I can not request them.
The site is in Guntown, MS and that area I know is controlled by another phone company out of Al I believe.
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jon1966Commented:
You can't request them or you can't provide them?  You don't have access to them?  Once you remove IP and Authentication sections from a cisco config it looks like any other, regardless if its lawblahblah.
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jon1966Commented:
What you can do is run WanKiller or similar to the CER WAN interface and then do a "sh int" of that WAN interface to see how much bandwidth is coming across.

Otherwise, you can configure snmp or netflow to figure out overall bandwidth coming across that interface.

Good Luck...
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danielc25Commented:
Can you do a show int serial x/x and paste the output here? Thanks!
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Heath CalhounAuthor Commented:
Have been told the high error counts show when AT&T does a stress test on the circuit.  Have had at least 3 run on it.  Showing 10 errors as of 9am.

Serial0/0/0.705 is up, line protocol is up
  Hardware is GT96K with integrated T1 CSU/DSU
  Description: DLCI 705 TO MPLS
  Internet address is 10.
  MTU 1500 bytes, BW 1536 Kbit, DLY 20000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation FRAME-RELAY IETF
  Last clearing of "show interface" counters never
Serial0/0/0 is up, line protocol is up
  Hardware is GT96K with integrated T1 CSU/DSU
  MTU 1500 bytes, BW 1536 Kbit, DLY 20000 usec,
     reliability 255/255, txload 1/255, rxload 1/255
  Encapsulation FRAME-RELAY IETF, loopback not set
  Keepalive set (10 sec)
  LMI enq sent  337395, LMI stat recvd 337391, LMI upd recvd 0, DTE LMI up
  LMI enq recvd 0, LMI stat sent  0, LMI upd sent  0
  LMI DLCI 1023  LMI type is CISCO  frame relay DTE
  FR SVC disabled, LAPF state down
  Broadcast queue 0/64, broadcasts sent/dropped 226767/0, interface broadcasts 170496
  Last input 00:00:00, output 00:00:00, output hang never
  Last clearing of "show interface" counters 5w4d
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 6396
  Queueing strategy: custom-list 1
  Output queues: (queue #: size/max/drops)
     0: 0/20/0 1: 0/20/6336 2: 0/20/0 3: 0/20/0 4: 0/20/0
     5: 0/20/0 6: 0/20/0 7: 0/20/0 8: 0/20/0 9: 0/20/0
     10: 0/20/0 11: 0/20/0 12: 0/20/0 13: 0/20/0 14: 0/20/0
     15: 0/20/0 16: 0/20/0
  5 minute input rate 9000 bits/sec, 4 packets/sec
  5 minute output rate 8000 bits/sec, 5 packets/sec
     17942443 packets input, 3631043732 bytes, 0 no buffer
     Received 0 broadcasts, 0 runts, 20 giants, 0 throttles
     379130 input errors, 379130 CRC, 161792 frame, 90427 overrun, 0 ignored, 284849 abort
     19988048 packets output, 3755689386 bytes, 0 underruns
     0 output errors, 0 collisions, 118 interface resets
     0 output buffer failures, 0 output buffers swapped out
     38 carrier transitions
     DCD=up  DSR=up  DTR=up  RTS=up  CTS=up
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Heath CalhounAuthor Commented:
Have requested the COS Profiles, but have not seen anything yet.
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danielc25Commented:
379130 input errors, 379130 CRC

118 interface resets

38 carrier transitions

These are all indicative of a carrier/line problem.

I would clear the interface counters for this interface and monitor it further. You can do this with the following command:

clear counters Serial 0/0/0.705

What is the average latency that you experience on this line?
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jon1966Commented:
Hi -

As Daniel states you have been experiencing circuit issues.  

You may need to schedule some after hours down time and post a ticket on the ATT Business Portal or call in to ATT to do an intrusive / loopback test.

But first I would issue a "clear counters" command and see if the errors listed below begin to increment.  These counters are accumulative from the last five weeks "Last clearing of "show interface" counters 5w4d" and may not reflect current circuit conditions.

Once you clear the counters issue "sh int sl0/0/0.705" and see if the errors increment over a period of one hour, to one day, etc.

5 minute output rate 8000 bits/sec, 5 packets/sec
     17942443 packets input, 3631043732 bytes, 0 no buffer
     Received 0 broadcasts, 0 runts, 20 giants, 0 throttles
     379130 input errors, 379130 CRC, 161792 frame, 90427 overrun, 0 ignored, 284849 abort
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Heath CalhounAuthor Commented:
Hmm am seeing maybe errors in the 10 count, but doesn't a stress test generate a load of errors?
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Heath CalhounAuthor Commented:
not sure here.  looks like between 161ms to 203ms.
also seems to be similar state wide.
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danielc25Commented:
It is possible. Personally I would clear the counters for the interface. After that has been done I would run a few speed tests and check the counters for input errors. If you can do this let us know what you find.
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jon1966Commented:
Hi, you have been averaging about 10,000 errors a day, so should see incrementing errors with or without a load test, but definitely more with a load test.

If you can afford the downtime, ATT can perform a remote loop back and watch for errors and then the local hand off (coordinated by ATT) can also generate a loop back at the smart jack facing your equipment.

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Heath CalhounAuthor Commented:
Well, ran several speed tests and pinging the .1 with 2.5k data.
The router did not show any changes on sh int but solar winds picked up 140 transmit discards.
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