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Txload 255/255 on Gi0/0 and Serial0/0/0 even no traffic- Cisco 1921

anilraj_003
Level 1
Level 1

Hi Team,

We are facing an issue that Txload-255/255 in cisco 1921 router. Please suggest how to resolve this.

Logs are here -

 

sh int gi0/0
GigabitEthernet0/0 is up, line protocol is up
  Hardware is CN Gigabit Ethernet, address is 6073.5c60.9a00 (bia 6073.5c60.9a00)
  Description: ***LAN***
  Internet address is 10.113.151.1/25
  MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
     reliability 255/255, txload 255/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full Duplex, 100Mbps, media type is RJ45
  output flow-control is unsupported, input flow-control is unsupported
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:21, 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: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 34000 bits/sec, 8 packets/sec
  5 minute output rate 76000 bits/sec, 6 packets/sec
     99225 packets input, 21311385 bytes, 0 no buffer
     Received 495 broadcasts (0 IP multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 140 multicast, 0 pause input
     114096 packets output, 116538432 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     168 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier, 0 pause output
     0 output buffer failures, 0 output buffers swapped out

Show version--

 

S1-53D-D053-R#show ver
Cisco IOS Software, C1900 Software (C1900-UNIVERSALK9-M), Version 15.2(2)T1, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2012 by Cisco Systems, Inc.
Compiled Wed 29-Feb-12 19:19 by prod_rel_team

ROM: System Bootstrap, Version 15.0(1r)M15, RELEASE SOFTWARE (fc1)

S1-53D-D053-R uptime is 2 hours, 39 minutes
System returned to ROM by power-on
System restarted at 03:38:57 UTC Sat Jul 7 2018
System image file is "usbflash0:c1900-universalk9-mz.SPA.152-2.T1.bin"
Last reload type: Normal Reload
Last reload reason: power-on

 

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 CISCO1921/K9 (revision 1.0) with 487424K/36864K bytes of memory.
Processor board ID FGL163325RW
2 Gigabit Ethernet interfaces
2 Serial(sync/async) interfaces
1 terminal line
1 Virtual Private Network (VPN) Module
DRAM configuration is 64 bits wide with parity disabled.
255K bytes of non-volatile configuration memory.
249840K bytes of USB Flash usbflash0 (Read/Write)


License Info:

License UDI:

-------------------------------------------------
Device#   PID                   SN
-------------------------------------------------
*0        CISCO1921/K9          FGL163325RW

 

Technology Package License Information for Module:'c1900'

-----------------------------------------------------------------
Technology    Technology-package           Technology-package
              Current       Type           Next reboot
------------------------------------------------------------------
ipbase        ipbasek9      Permanent      ipbasek9
security      securityk9    EvalRightToUse securityk9
data          None          None           None

Configuration register is 0x2102

 

1 Accepted Solution

Accepted Solutions

Hi Leo

I tried for IOS up gradation and same has been done. Now TX load is showing normal . No issues.

 

RCA - IOS Bugs.

 

 

 

Thanks.

Anil

View solution in original post

5 Replies 5

Leo Laohoo
Hall of Fame
Hall of Fame

@anilraj_003 wrote:

5 minute output rate 76000 bits/sec, 6 packets/sec 


I can see a lot of outbound traffic right there.

Ok. But as per user, no traffic flow.


@anilraj_003 wrote:
Ok. But as per user, no traffic flow.

Not sure about that. 

So this port is connected to the LAN, which means a switch, right?  So try and find out which port is chatting.  Another thing to do is disable all the downlink port and see if the numbers change after 5 minutes.

Enable IP accounting on the router to determine who is the top talker.

Hi Leo,

Please see log again..here output (under 5 mints.) is zero, but Txload is 255/255. I think something is IOS bugs related issue. Please guide.

 

 MTU 1500 bytes, BW 100000 Kbit/sec, DLY 100 usec,
     reliability 255/255, txload 255/255, rxload 1/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full Duplex, 100Mbps, media type is RJ45
  output flow-control is unsupported, input flow-control is unsupported
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:05, 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: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 0 bits/sec, 0 packets/sec
  5 minute output rate 0 bits/sec, 0 packets/sec
     132473 packets input, 32275072 bytes, 0 no buffer
     Received 1514 broadcasts (0 IP multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 274 multicast, 0 pause input
     109901 packets output, 75098721 bytes, 0 underruns
     0 output errors, 0 collisions, 0 interface resets
     0 unknown protocol drops
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier, 0 pause output
     0 output buffer failures, 0 output buffers swapped out
S3-523-D052-R#sh clock
13:27:53.482 IST Sat Jul 7 2018
S3-523-D052-R#

Hi Leo

I tried for IOS up gradation and same has been done. Now TX load is showing normal . No issues.

 

RCA - IOS Bugs.

 

 

 

Thanks.

Anil

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