Why does this command use for?

[Soon Kwan Kwon]

Whenever I make a question in the cisco forum, many advise me show "remote command ~"

So I searched why people use it...

After that, I could understand there are SP and RP.

When I use "remote command ~", I can see the RP config?;;

What's the difference SP and RP? and why does this command use for..?

Thank you.

[Markus Benz]

Hi,

I think your question is already answered in the following discussion.
Let me know if this does not answer your question.

https://supportforums.cisco.com/discussion/10170181/remote-command-switch

Regards,
Markus

[Soon Kwan Kwon]

Thank you Markuz...

However, I ain't still understand...ㅠ_ㅠ

[InayathUlla Sharieff]

Soon,

to put it in simple way:-

SP and RP comes when you are using Supervisor on Cat6500(Sup 720 as an example).

SP: Switch processor takes care of all layer 2 .

RP: Takes care of all the layer 3.

When Initially switch boots SP takes care of booting and then when it fetches the IOS it hand over the control to RP.

During troubleshooting if you want to get/collect the outputs from SP side you either use:-

remote command or login to SP by using remote login switch.

HTH

Regards

Inayath

[Soon Kwan Kwon]

Thank you InayathUlla. ah...

But I ain't still understand .. It made me going crazy...ah....what was worse, I am really confused because your opinion, below datasheet opinion and verifying.jpeg opinion...

Even though it is bothering you.. please contact me...

I'll write down step by step;

1. [In your opinion]

=> After seeing your opinion, I detached SP Bootdisk and RP Bootflash.

and then booting the backbone router.

It was working very well, even, it was working OSPF dynamic routing function...

Even if I detach both of them, why does Backbone router operate properly..?

2~3. [In the below datasheet and verifying.jpeg opinion]

=> In datasheet context, there is a sentence ; An image can be loaded from the SP bootflash/bootdisk using the command boot system flash sup-bootflash:IOS-image-name.

I'm wondering difference between this sentence and verifying.jpeg's sentence(RED underline).

As far as I know, IOS image is fetched through the SP while loading.

but whenever I have some issues, people proposed me entering SP by implementing "remote command ~" like verifying.jpeg's opinion.

I clearly loaded Backbone router into the SP, but why does people said me to type "remote command~ "?

Maybe is it my misunderstand? 

IOS was originally loaded from RP?

REALLY REALLY CONFUSE........please help

Q. What is the difference between the SP and RP bootflash/bootdisk?

(Switch Processor, Route Processor)

SP bootflash/bootdisk is the location from where the system can load and boot a Cisco IOS Software image. The more SP bootflash/bootdisk space you have, the greater the number of Cisco IOS Software images you have, and the greater the choice in what Cisco IOS Software images you can boot from. An image can be loaded from the SP bootflash/bootdisk using the command boot system flash sup-bootflash:IOS-image-name. Multiple boot system flash commands can exist in the configuration file, and it is the first in the list that will be used as the image from which to boot the system.

The RP bootflash can also be used as a storage location for Cisco IOS Software images, although the system cannot directly load an image from that location. The SP and RP bootflash can also be used as a storage location for backup and alternate configuration files. Configuration files that are required to be used as an active configuration must be copied over to the running or startup configuration.