Cisco ws-c2960-48tt-l ios image download

Using the This setup allows IT departments to enable strong security policies without compromising user mobility and with minimal administrative overhead. ACL lookups are done in hardware, so forwarding performance is not compromised when ACL-based security is implemented.

Port security can be used to limit access on an Ethernet port based on the MAC address of the device to which it is connected. It also can be used to limit the total number of devices plugged into a switch port, thereby protecting the switch from a MAC flooding attack as well as reducing the risks of rogue wireless access points or hubs.

The MAC Address Notification feature can be used to monitor the network and track users by sending an alert to a management station so that network administrators know when and where users entered the network.

Alternatively, a local username and password database can be configured on the switch itself. Switches exchange speed, duplex, and power settings with end devices such as IP phones.

Availability and Scalability The Cisco Catalyst LAN Base Series is equipped with a large set of features that allow for network scalability and higher availability through multicast filtering as well as a complete suite of Spanning Tree Protocol enhancements aimed to maximize availability in a Layer 2 network. Voice-aware Flexlink provides bidirectional, fast convergence in less than milliseconds.

Advanced QoS The Cisco Catalyst LAN Base Series offers superior multilayer QoS features to help ensure that network traffic is classified and prioritized and that congestion is avoided in the best possible manner.

Configuration of QoS is greatly simplified through automatic QoS Auto QoS , a feature that detects Cisco IP phones and automatically configures the switch for the appropriate classification and egress queuing. This optimizes traffic prioritization and network availability without the challenge of a complex configuration. The Cisco Catalyst LAN Base Series can classify, reclassify, police, mark, queue, and schedule incoming packets and can queue and schedule packets at egress.

Packet classification allows the network elements to discriminate between various traffic flows and enforce policies based on Layer 2 and Layer 3 QoS fields. Control-plane and data-plane ACLs are supported on all ports to help ensure proper treatment on a per-packet basis.

The Cisco Catalyst LAN Base Series supports four egress queues per port, giving network administrators more control in assigning priorities for the various applications on the LAN. At egress, the switch performs congestion control and scheduling, the algorithm or process that determines the order in which queues are processed. The SRR algorithm helps ensure differential prioritization.

For example, it would be undesirable to have a large file download destined to one port on a switch increase latency in voice traffic destined to another port on this switch. This condition is avoided by making sure that voice traffic is properly classified and prioritized throughout the network.

Other applications, such as Web browsing, can be handled on a lower-priority basis. Through CIR, bandwidth can be guaranteed in increments as small as 1 Mbps. Bandwidth allocation is essential when network environments require service-level agreements or when it is necessary to control the bandwidth given to certain users. Management The new Express Setup feature simplifies the initial configuration of a switch. Now you can set up the switch through a Web browser, eliminating the need for terminal-emulation programs and the command-line interface CLI.

Express Setup reduces the cost of deployment by helping less- skilled personnel quickly and easily set up switches. Through a user-friendly GUI, users can configure and manage a wide array of switch functions and start the device manager of Cisco routers and Cisco wireless access points.

A few mouse clicks enable the Cisco recommended security, availability, and QoS features without the need to consult a detailed design guide. The Security wizard automatically restricts unauthorized access to servers with sensitive data. Smartports and wizards save time for network administrators, reduce human errors, and help ensure that the configuration of the switch is optimized for these applications.

CiscoWorks LMS is a suite of powerful management tools that simplify the configuration, administration, monitoring, and troubleshooting of Cisco networks. Table 3 gives the hardware specifications, and Table 4 gives the power specifications. Table 5 lists the management and standards support, and Table 6 provides the safety and compliance information.

Table 2. This functionality can be used to revert to a previous configuration state, effectively rolling back any configuration changes that were made since that configuration file was saved. Switches exchange link and device information in multivendor networks. It supports a wide range of Cisco Catalyst intelligent switches.

This can be used to prevent attacks that attempt to poison the DHCP binding database, and to rate-limit the amount of DHCP traffic that enters a switch port. The connectors are located at the back of the switch.

The wattage rating on the power supply does not represent actual power draw. You only need to have access to a server that supports the remote shell rsh. Most UNIX systems support rsh.

Because you are copying a file from one place to another, you must have read permission on the source file and write permission on the destination file. If the destination file does not exist, RCP creates it for you. For the RCP copy request to execute successfully, an account must be defined on the network server for the remote username. If the server has a directory structure, the image file is written to or copied from the directory associated with the remote username on the server.

Before you begin downloading or uploading an image file by using RCP, do these tasks:. If the switch IP address translates to Switch1. For more information, see the documentation for your RCP server. You can download a new image file and replace or keep the current image. To keep the current image, go to Step 6. This step is required only if you override the default remote username see Steps 4 and 5. Downloads the images file from the RCP server to the switch and overwrites the current image.

Downloads the images file from the RCP server to the switch and saves the current image. If there is not enough room to install the new image and keep the running image, the download process stops, and an error message is displayed. You can upload an image from the switch to an RCP server. The upload feature should be used only if the web management pages associated with Device Manager have been installed with the existing image.

Uploads the currently running switch image to the network server. Skip to content Skip to search Skip to footer. Book Contents Book Contents. Find Matches in This Book. PDF - Complete Book 1. Updated: March 28, Chapter: Working with Image Files. These sections contain this configuration information: Note For a list of software images and the supported upgrade paths, see the release notes.

File Format of Images on a Server or Cisco. Ensure that the switch has a route to the TFTP server. The switch and the TFTP server must be in the same subnetwork if you do not have a router to route traffic between subnets. Check connectivity to the TFTP server by using the ping command. For download operations, ensure that the permissions on the file are set correctly. The permission on the file should be world-read.

Before uploading the image file, you might need to create an empty file on the TFTP server. To create an empty file, enter the touch filename command, where filename is the name of the file you will use when uploading the image to the server.

During upload operations, if you are overwriting an existing file including an empty file, if you had to create one on the server, ensure that the permissions on the file are set correctly. Permissions on the file should be world-write. Caution For the download and upload algorithms to operate properly, do not rename image names.

When you copy an image file from the switch to a server by using FTP, the Cisco IOS software sends the first valid username in this list: The username specified in the archive download-sw or archive upload-sw privileged EXEC command if a username is specified. The username set by the ip ftp username username global configuration command if the command is configured. The switch sends the first valid password in this list: The password specified in the archive download-sw or archive upload-sw privileged EXEC command if a password is specified.

The password set by the ip ftp password password global configuration command if the command is configured. The switch creates a password named username switchname. The username variable is the username associated with the current session, switchname is the configured hostname, and domain is the domain of the switch. Before you begin downloading or uploading an image file by using FTP, complete these tasks: Ensure that the switch has a route to the FTP server. The switch and the FTP server must be in the same subnetwork if you do not have a router to route traffic between subnets.

Check connectivity to the FTP server by using the ping command. If you are accessing the switch through the console or a Telnet session and you do not have a valid username, make sure that the current FTP username is the one that you want to use for the FTP download. You can enter the show users privileged EXEC command to view the valid username. If you do not want to use this username, create a new FTP username by using the ip ftp username username global configuration command. This new name will be used during all archive operations.

If you are accessing the switch through a Telnet session and you have a valid username, this username is used, and you do not need to set the FTP username. Include the username in the archive download-sw or archive upload-sw privileged EXEC command if you want to specify a username for that operation only.

When you upload an image file to the FTP server, it must be properly configured to accept the write request from the user on the switch. Command Purpose Step 1 configure terminal Example: Switch configure terminal Optional Enters global configuration mode on the switch. When you copy an image from the switch to a server by using RCP, the Cisco IOS software sends the first valid username in this list: The username specified in the archive download-sw or archive upload-sw privileged EXEC command if a username is specified.

The username set by the ip rcmd remote-username username global configuration command if the command is entered. The remote username associated with the current TTY terminal process.

For example, if the user is connected to the router through Telnet and was authenticated through the username command, the switch software sends the Telnet username as the remote username. The switch hostname. Before you begin downloading or uploading an image file by using RCP, do these tasks: Ensure that the workstation acting as the RCP server supports the remote shell rsh.

Ensure that the switch has a route to the RCP server. The switch and the server must be in the same subnetwork if you do not have a router to route traffic between subnets. Check connectivity to the RCP server by using the ping command. If you are accessing the switch through the console or a Telnet session and you do not have a valid username, make sure that the current RCP username is the one that you want to use for the RCP download.

If you do not want to use this username, create a new RCP username by using the ip rcmd remote-username username global configuration command to be used during all archive operations. If you are accessing the switch through a Telnet session and you have a valid username, this username is used, and there is no need to set the RCP username.

When you upload an image to the RCP to the server, it must be properly configured to accept the RCP write request from the user on the switch. For UNIX systems, you must add an entry to the. For example, suppose the switch contains these configuration lines: hostname Switch1 ip rcmd remote-username User0 If the switch IP address translates to Switch1. Command Purpose Step 1 configure terminal Example: Switch configure terminal Enters global configuration mode.

Step 2 ip rcmd remote-username username Example: Switch config ip rcmd remote-username netadmin1 Optional Specifies the remote username. Was this Document Helpful? Yes No Feedback. Describes the core functionality of the image. Optional Changes the default FTP password. Enters global configuration mode.