Skip to main content

Cisco-R1# reload in/at A Life Saver !

We are well aware of how tricky can our life get when we are making some changes into our network device configuration and suddenly the ssh access gets disconnected , which can be more interesting if the device is remote . We will  either need to reboot the device physically going to the location  to gain our old configuration  or be very precise by using this life saver command in Cisco devices which I will be discussing about. This mechanism provides a safeguard against inadvertent loss of connectivity between a network device and the user or management application due to configuration changes.

Scheduling a reboot prior to the configuration changes can actually be a life saver for lot of administrators around. So, if I make any errors while configuring the device and loose connectivity the device will automatically reboot after the certain set remaining time and  load back my old configuration from which I will be able to access back to my device.  Reload command in Cisco device permits a schedule reboot by making use of  "in" and "at".
  •  at : at a specific time/date.
  •  in : after a certain time interval.
Let me first talk about how we can make use of the "at" 
You can well have a look at my above snapshot where I have used "at" mentioning the specific date and time interval.  Once i confirm the time and date my router will get rebooted at that specific date and time. 

The more interesting out of two is the use of 'in' which I use it most of the time while making some major configuration changes in Cisco device remotely. The 'in' will reload the device after a certain time interval. 

The time to get reloaded can also be verified by making use of the command 'show reload'
 

The reload scheduled set can also be aborted .


There are other technique as well which I will be discussing about in my other blogs. Thank you for reading it out. Feedbacks will be well appreciated !


Comments

Post a Comment

Popular posts from this blog

High Availability Palo Alto (Active/Standby)

 High Availability is usually performed in most of the data centers networks today which ensures application availability . High Availability is usually achieved in case one of the appliance goes down or have some physical or logical connectivity issues.  Achieving high availability in Palo Alto firewall is relatively very easy. Palo Alto firewall can work in both Active/Standby mode or in Active/Active. We will basically be talking about Active/Standby mode in this article. There are basically two links that needs to be configure in Palo Alto for HA. 1. Control Links Control Links are associated with control plane traffic which is mainly used for heartbeat exchanged, configuration synchronization. Dedicate HA ports are available in higher series of Palo Alto or even a HA interface can be created for some inband ports.   2. Data Links Data Links are mainly used for session synchronization, forwarding table synchronization. Dedicated HSCI Ports are available for highe...

SSL Decryption FortiGate

  We have pretty much heard about SSL decryption and of malware hiding inside an encrypted traffic. A large amount of traffic in the internet is pretty much encrypted which basically means that bad things like malware, virus, ransomware can hide inside this encrypted traffic. If majority of these traffic are encrypted our Firewalls are not able to analyze these traffic which can easily infect our organization and the investment which we have done in these firewalls are wasted. There does come around a solution for this and as my topic suggest SSL Decryption also know as Deep Packet Inspection as by some IT folks. The image that I have attached down below clearly suggest about what I am trying to explain. Using deep packet inspection, the firewall simply decrypts the encrypted traffic happening  between client and server, inspects the content to find the threats and block them , then forwards it to the destination re-encrypting it . We will need to first setup the SSL/SSH in...

Virtual Chassis Juniper EX 3400 (PREPROVISONED)

Juniper has always been an technology that I have always liked right from the beginning of my career when I was working as an Jr Network Administrator. The logical command as well as the hierarchy based Juniper devices has always made me love the device. Let me today talk about a very useful and an interesting topic which we usually called stack in the world of Cisco and virtual chassis in the world of Juniper, both of them mean the same thing logically make two or more than two switch as a one and configure and manage the device as a single unity. High Availability, managed configuration and maintenance are few of the benefits that a virtual chassis can provide. The configuration for virtual chassis can be found easily in the juniper sites but my objective about writing this is making it more simpler in context to Juniper's document. There are basically two ways of configuring virtual chassis in Juniper. 1.   Nonprovisioned configuration  :  The master switch assig...