04-28-2013 05:40 PM - edited 03-07-2019 01:04 PM
Guys,
Can you please help me with whats causing cellular connection to radio power mode = off? How to prevent it?
Router specs
CISCO2911-SEC/K9 Cisco 2911 Security Bundle w/SEC license PAK
S29UK9-15104M Cisco 2901-2921 IOS UNIVERSAL
Thank you
04-28-2013 05:48 PM
Look at the "sh logs" to find any clues.
Would be nice if you can post the "sh version" too.
04-28-2013 05:55 PM
I believe these is whats make the cellular goes to radio power mode = off (based on logs). but whats causing the modem in HWIC goes down?
Logs
Apr 28 05:40:00.595 MNL: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/1/0, changed state to up
Apr 28 05:40:46.247 MNL: %BGP-5-ADJCHANGE: neighbor 10.63.205.129 Up
Apr 28 16:06:41.448 MNL: %CELLWAN-2-MODEM_DOWN: Modem in HWIC slot 0/0 is DOWN
Apr 29 07:07:24.737 MNL: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/0, changed state to down
Apr 29 07:07:25.737 MNL: %LINK-3-UPDOWN: Interface GigabitEthernet0/0, changed state to down
Apr 29 07:10:27.737 MNL: %LINK-3-UPDOWN: Interface GigabitEthernet0/0, changed state to up
Apr 29 07:10:28.737 MNL: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet0/0, changed state to up
sh version
Cisco IOS Software, C2900 Software (C2900-UNIVERSALK9-M), Version 15.1(4)M2, RELEASE SOFTWARE (fc1) Technical Support: ttp://www.cisco.com/techsupport
Copyright (c) 1986-2011 by Cisco Systems, Inc.
Compiled Mon 26-Sep-11 17:37 by prod_rel_team
ROM: System Bootstrap, Version 15.0(1r)M12, RELEASE SOFTWARE (fc1)
PHILAM-BLY-BR01 uptime is 2 days, 13 hours, 53 minutes
System returned to ROM by reload at 19:00:00 MNL Fri Apr 26 2013
System restarted at 19:01:31 MNL Fri Apr 26 2013
System image file is "flash0:c2900-universalk9-mz.SPA.151-4.M2.bin"
Last reload type: Normal Reload
Last reload reason: Reload Command
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
Cisco CISCO2911/K9 (revision 1.0) with 479232K/45056K bytes of memory.
Processor board ID FGL15481448
4 FastEthernet interfaces
3 Gigabit Ethernet interfaces
2 Serial(sync/async) interfaces
3 terminal lines
1 Virtual Private Network (VPN) Module
2 Cellular interfaces
DRAM configuration is 64 bits wide with parity enabled.
255K bytes of non-volatile configuration memory.
250880K bytes of ATA System CompactFlash 0 (Read/Write)
License Info:
License UDI:
-------------------------------------------------
Device# PID SN
-------------------------------------------------
*0 CISCO2911/K9 FGL15481448
Technology Package License Information for Module:'c2900'
-----------------------------------------------------------------
Technology Technology-package Technology-package
Current Type Next reboot
------------------------------------------------------------------
ipbase ipbasek9 Permanent ipbasek9
security securityk9 Permanent securityk9
uc None None None
data None None None
Configuration register is 0x2102
Reload scheduled for 19:00:00 MNL Mon Apr 29 2013 (in 10 hours and 4 minutes) by
jvi01131990 on vty0 (10.49.135.135)
Reload reason: Reload Command
04-28-2013 06:04 PM
Pinoy pala.
Do you have any other routers exibiting similar behaviour?
The only fix is to disable/enable the port, I presume?
Have you tried upgrading the IOS?
04-28-2013 06:07 PM
The only solution i got is to reload the router. But i need to identify whats causing it. Is it maybe RSSI? or idle?
04-28-2013 06:10 PM
No, I don't think so. Could be the following factors:
1. IOS fault or bug;
2. HWIC not properly insterted,
3. Faulty HWIC; or
4. Faulty slot.
04-28-2013 06:21 PM
Last few weeks our field engineer installed new router to one of my handled sites, and right now i'm still having the same issue.
04-28-2013 06:29 PM
So you have multiple hardware exibiting the same symptoms?
04-28-2013 06:33 PM
right now i'm handling 71 sites, and some areas where at the rural side, which means expected to get low signal in there. And most sites that are in the rural areas experience this symptoms.
04-28-2013 06:36 PM
IF what I'm reading is correct, that you have some sites where the HWIC goes down/down then I'm now leaning towards an IOS bug.
You can either raise a Cisco TAC or upgrade the IOS of one of them (for testing).
04-28-2013 06:43 PM
I don't really have the experience to upgrade IOS. Can you help me with it? What are some requirements that i must do first to upgrade it.
04-28-2013 06:51 PM
IOS upgrade for Cisco routers and switches are not difficult (once you get the hang of it).
1. Go to Cisco Download Software website. If you have a valid Service Contract, you can download the IOS.
2. Download the necessary IOS you want.
3. IMPORTANT: Compare the MD5 hash of the file against the one in the Cisco website.
4. Download and install TFTPd32/TFTPd64.
5. The command to copy the IOS BIN file to the appliance is: copy tftp://
You enter the above command in the router.
6. Once copy is complete, it won't hurt to compare the MD5 hash against the Cisco website. The command to display the MD5 hash from a Cisco router or switch is: verify /md5 flash:IOS.bin
04-28-2013 06:59 PM
If i upgrade the IOS, all my configurations will be lost? or do i need to backup first?
04-28-2013 07:15 PM
Your configurations will not be lost.
It would be a good idea to backup the configs first before you perform the upgrade.
04-28-2013 07:20 PM
Is there other options than upgrading the IOS? I'm not good at this.
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