"serial restart-delay 0" issue

Answered Question
Dec 8th, 2007
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I have recently purchased a Cisco NM-T4 Serial Module for my 3620 Router and everything is A-Okay, but I have attmpted to remove the command "serial restart-delay 0" from all the serial interfaces by using "no serial restart-delay 0" command and saved this into NVRAM afterwards.


Apparently after reloading the router the "serial restart-delay 0" re-appears again.


I would be gratful for any help?



Regards



Bob.

Correct Answer by Edison Ortiz about 9 years 4 months ago

No, it won't be a problem. It's a purely cosmetic issue as other interfaces use that value, they just don't show it in the running-config.

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Danilo Dy Sat, 12/08/2007 - 23:54
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Hi,


The command you issued is setting it to default. The default is "0", therefore you see them again after you reboot the router.


"serial restart-delay" set the amount of time that the router waits before trying to bring up a serial interface when it goes down. The default is "0". Hence, the command "serial restart-delay 0"


Regards,

Dandy

reb999000 Sun, 12/09/2007 - 09:16
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Dandy,



When I purchased the Cisco NM-T4 Serial Module being for one of my 3620 Routers, it had the "serial restart-delay 0" in all 4 serial interfaces, s1/0, s1/1, s1/2 & s1/3 since I installed it.


Mo other 3620 router has the Cisco NM-T4 Serial Module and certainly does not have the "serial restart-delay 0" command in it at all.


I have tried changing the default 0 to 1 and tried using the "no serial restart-delay 1". I want to remove this command completely form the interfaces.


There is a way around this without the command comming back, inspite its default.



Regards



Bob.

Danilo Dy Mon, 12/10/2007 - 04:57
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Hi Bob,


Did you try the command "default interface serial0/0"? This should set the interface config to factory default.


Regards,

Dandy

reb999000 Tue, 12/11/2007 - 10:17
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Dandy,



I have checked the router during the load session and there is no "UNKNOWN" hardware beneath the Smart Init, so the card is recognised in the router. I completely rule out any faults with the module


The "default interface serial0/0" erases the cofiguations in that interface.


Please have a look at the output of the serial module:



interface Serial1/0

ip address 192.168.62.6 255.255.255.252

serial restart-delay 0

!

interface Serial1/1

ip address 192.168.5.6 255.255.255.252

serial restart-delay 0

!

interface Serial1/2

no ip address

shutdown

serial restart-delay 0

!

interface Serial1/3

no ip address

shutdown

serial restart-delay 0



What are your further thoughts on this?

I am using the router as part of multiple area ospf lab which I got this one configured in a totally stubby area.



Regards



Bob.

Edison Ortiz Tue, 12/11/2007 - 10:47
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This could be one of those IOS nuisances, what version of code are you running ?


Rack1R1#sh ver | i IOS

Cisco IOS Software, 3600 Software (C3640-I-M), Version 12.4(17), RELEASE SOFTWAR

E (fc1)


Rack1R1#sh run int s1/2

Building configuration...


Current configuration : 76 bytes

!

interface Serial1/2

no ip address

shutdown

serial restart-delay 0

end


Rack1R1#conf t

Enter configuration commands, one per line. End with CNTL/Z.

Rack1R1(config)#int s1/2

Rack1R1(config-if)#no serial restart-delay 0

Rack1R1(config-if)#end

Rack1R1#sh run int s1/2

*Mar 1 00:01:52.075: %SYS-5-CONFIG_I: Configured from console by console

Rack1R1#sh run int s1/2

Building configuration...


Current configuration : 52 bytes

!

interface Serial1/2

no ip address

shutdown

end

Edison Ortiz Tue, 12/11/2007 - 11:39
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.... and rebooted the router, then it returned.. hmmm....

Edison Ortiz Tue, 12/11/2007 - 11:53
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... It seems other configurations do hold the value of serial restart-delay 0 but they aren't displayed in the running-config.


Attribute this to a cosmetic bug and leave the command in there.


Is it causing any problems ?

reb999000 Tue, 12/11/2007 - 23:37
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Edison Ortiz,



I am using the router for OSPF labs and for this; its not giving me any problems at this stage. I am concerned when I do BGP labs epsecally using the protocol's attributes this may be a problem?



I will paste you the output:



Smart Init is enabled

smart init is sizing iomem

ID MEMORY_REQ TYPE

000037 0X00056400 Combination Single Ethernet 2 WAN

000054 0X0004E480 4T Mueslix Serial

0X000F3BB0 public buffer pools

0X00211000 public particle pools

TOTAL: 0X003A9430


If any of the above Memory Requirements are

"UNKNOWN", you may be using an unsupported

configuration or there is a software problem and

system operation may be compromised.

Rounded IOMEM up to: 4Mb.

Using 6 percent iomem. [4Mb/64Mb]


Restricted Rights Legend


Use, duplication, or disclosure by the Government is

subject to restrictions as set forth in subparagraph

(c) of the Commercial Computer Software - Restricted

Rights clause at FAR sec. 52.227-19 and subparagraph

(c) (1) (ii) of the Rights in Technical Data and Computer

Software clause at DFARS sec. 252.227-7013.


cisco Systems, Inc.

170 West Tasman Drive

San Jose, California 95134-1706




Cisco Internetwork Operating System Software

IOS (tm) 3600 Software (C3620-IS-M), Version 12.3(3), RELEASE SOFTWARE (fc2)

Copyright (c) 1986-2003 by cisco Systems, Inc.

Compiled Mon 18-Aug-03 17:52 by dchih

Image text-base: 0x60008950, data-base: 0x6188A000



The version is 12.3



Regards



Bob.

Correct Answer
Edison Ortiz Wed, 12/12/2007 - 15:22
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No, it won't be a problem. It's a purely cosmetic issue as other interfaces use that value, they just don't show it in the running-config.

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