Which iOS versions of the network switch have encryption

Switch IOS refers to the Cisco iOS operating system.

Cisco's Internet.

The operating system (IOS) is a complex operating system optimized for internetwork interconnection. is a hardware-decoupled software architecture that can be dynamically upgraded to adapt to changing technologies (software) as network technology continues to evolve.

It was first written by William Yeager in 1986.

iOS is a router from Cisco.

bai and exchange du

machine-specific operating system, each zhi

The platform is not the same, from a few trillion DAOs to a hundred.

There are many megabytes in size, and no platform can be divided into many versions according to the power capacity.

You're experimenting with iOS, virtual machines, or unprofessional simulators. Software such as GNS3 or Yellow Hat running iOS can configure the switch in a virtual real-world environment.

The switch IOS is the operating system of the computer. The system of switching inputs and outputs, processing.

The switch you use in gns doesn't do well with switch emulation, it doesn't work with this In reality, 2960 is supported, 3560 is not supported.

3350 Does not support PVLAN over EtherChannel, supported platforms are Cat4500, Cat4500E, Cat4900M, Cat4928-10GE, Cat4948....Wait a minute.

The iOS version number must be used to start supporting.

The iOS version of 3550 stays on.

To add. I'll check it out for you again.

The 3550 only supports PVLAN Edge (Protected Port) and has been supported since then.

You may wish to install the latest version).

See if you can run ==

The 3550 was discontinued in 2005, discontinued in 2006, and discontinued in May 2007.

It was last released in August 2011.

That's it.

The main thing about routers is broadband access and connecting to other networks.

The switch is mainly used to connect client data.

First, we will introduce the storage of the Cisco router.

The router has similarities with a computer in that it also has memory, operating system, configuration, and user interface, and in Cisco routers, the operating system is called.

Internetwork Operating System or iOS. The following focuses on the router's storage.

ROM: The read-only memory contains a copy of the iOS that the router is using;

RAM: iOS divides random access memory into shared and main memory. It is mainly used to store the running router configuration and IOS data structure related to the routing protocol;

Flash memory (flash): used to store ios software image files, flash memory can erase memory, it can be overwritten with the new version of ios, ios upgrade is mainly to replace the ios image file in the flash memory.

NVRAM: Non-volatile random access memory used to store configuration files for the system.

The following table shows the memory features of common types of routers.

Table: Router memory details at a glance.

Memory type. ROM can't upgrade basic iOS

Upgradeable iOS

Shared RAM storage buffers.

The one that starts with 2 is a Layer 2 switch.

3 is open is the third layer and the router.

Any idea what this 2 refers to? It refers to the second layer of the OSI seven-layer protocol, and the switch works at this layer, so he starts with 2, and the third layer is the network layer, the router and the third-layer machine routing function, so he works at this layer, as long as you look at the first number, you know whether it is layer 2 or layer 3, understand?

Cut out a picture to show you.

Seeing no, this is the router's iOS file.