Before we discuss the memories that are used in a Cisco router, let’s understand what basically a Router is. Show When we want to connect two or more IP networks or subnetworks together, then a piece of hardware is needed and that hardware is called a Router. It generally serves two purposes:
PC1 and PC2 are connected to a router that is connected to Internet Service. How does Router work? Each data packet has a distinct destination and travels a distinct path to get there and these packets are guided by the router. The router also ensures that each data packet is successfully delivered to its destination without any interference in between the transmission. The best route is selected with the help of routing protocols like RIP(Routing Internet Protocol) /OSPF(Open Shortest Path First). A routing table is used by the router internally where both the static (these types of addresses are assigned by the ISP(Internet Service Provider) and these types of addresses do not change) as well as dynamic addresses (these types of addresses are assigned using DHCP(Dynamic host configuration Protocol) and these addresses change over time, they are not fixed) are stored. Different types of Memories in a Router : 1. Random Access Memory (RAM) –
Whenever the Router is rebooted or restarted, all the data, all the information that is stored in the RAM gets removed or deleted. The data gets deleted because all the information in the RAM is temporarily stored in a router. We can permanently store the data in NVRAM. 2.
Non-Volatile Random Access Memory (NVRAM) : 3. Read-Only Memory (ROM) : 4. Flash Memory : Summarizing different memories that are used in Cisco Router –
Cisco devices usually have four types of memory that are being used for different purposes. These four types are:
Download our Free CCNA Study Guide PDF for complete notes on all the CCNA 200-301 exam topics in one book. We recommend the Cisco CCNA Gold Bootcamp as your main CCNA training course. It’s the highest rated Cisco course online with an average rating of 4.8 from over 30,000 public reviews and is the gold standard in CCNA training: Where is the startup configuration stored on Cisco switch?On all platforms except the Class A Flash file system platforms, the startup configuration is stored in nonvolatile random-access memory (NVRAM).
Where is the startup configuration stored in a switch?A switch's running config is stored in RAM. Its startup config is stored in nonvolatile memory.
Where is the startup configuration file stored?A startup configuration is stored in the nonvolatile memory of a device, which means that all configuration changes are saved even if the device loses power.
What type of memory is used to store the startup configuration on a Cisco device?2. Non-Volatile Random Access Memory (NVRAM) : NVRAM is used to store the startup configuration file. Startup configuration files are the copies of the Cisco Router Configuration file and they are retained after the router is restarted or rebooted.
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