07-07-2018 12:17 AM - edited 03-05-2019 10:44 AM
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
Solved! Go to Solution.
07-07-2018 02:23 AM
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
07-07-2018 12:55 AM
@anilraj_003 wrote:
5 minute output rate 76000 bits/sec, 6 packets/sec
I can see a lot of outbound traffic right there.
07-07-2018 01:22 AM
07-07-2018 01:31 AM - edited 07-07-2018 01:32 AM
@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.
07-07-2018 01:49 AM
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#
07-07-2018 02:23 AM
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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