Cisco Sg2008 Manual
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Administration File Management Cisco Small Business SG200 Series 8-port Smart Switch71 3 Downloading an Image or Boot Code File From the System Boot Prompt You can download and install a new image or boot code file at the system boot prompt using the TFTP and XMODEM protocols. This process may be necessary when the application software does not execute due to a corrupted software image or boot code file and, as a result, you cannot access the CLI or web-based interface utilities for downloading and installing new software. If the switch is connected to a network, you can obtain IP information for the switch via DHCP, and then use TFTP to download the file. If no network connection is available, and the switch is connected through its serial console port to a management station, you can use the XMODEM protocol to download the file. NOTEThis process requires a management system that is connected to the serial console port on the switch and has a terminal emulation program, such as Tera Term or HyperTerminal. Configure the utility with the following parameters: •115200 bits per second •8 data bits •no parity •1 stop bit •no flow control See your product Quick Star t Guide for more information on setting up the console port connection. Downloading an Image or Boot Code File Using TFTP To download a software image or boot code file using TFTP at the boot prompt: STEP 1Using a terminal emulation program, open a serial connection between the switch and the management system connected to the switch console port. STEP 2Physically connect switch port e1 to the network. STEP 3Power up the switch. STEP 4Stop the firmware load by pressing and holding +C as the switch boots up. The boot-level command prompt displays: CFE>

Administration File Management Cisco Small Business SG200 Series 8-port Smart Switch72 3 STEP 5Enter the command to have an IP address assigned to the port from a DHCP server on the attached network: CFE> ifconfig eth0 -auto When the switch receives a DHCP reply, the IP information displays on the terminal. STEP 6Enter the command to download an image file to Flash: CFE>flash server-ipaddr:image-filename flash0.os Or, enter the command to download a boot code file: CFE> flash ipaddr:bootcode-filename flash0.boot Replace ipaddr with the IP address of the system where the file resides, and replace image-filename or bootcode-filename with the actual image or boot code filename. WARNING! Make sure that the switch is connected to an uninterrupted power supply during a boot code upgrade. This process might take 10–20 seconds. When the download is complete, the switch copies the image or boot code file into Flash memory. STEP 7Enter the command to restart the switch to boot it with new software: CFE>reset -sysreset NOTE: You can verify the boot code or image version by viewing the System Summary page in the web-based switch configuration utility. Or, from the command line interface, you can enter the show sysinfo command. Downloading an Image or Boot Code File Using XMODEM To download a software image or boot code file using XMODEM at the boot prompt: STEP 1Using a terminal emulation program, open a serial connection between the switch and the management system connected to the switch console port. STEP 2Power up the switch.

Administration File Management Cisco Small Business SG200 Series 8-port Smart Switch73 3 STEP 3Stop the control at boot code by pressing and holding + C continuously as the switch boots up, until the following prompt displays: CFE> STEP 4Enter the command to download a software image: CFE>flash uart0 flash0.os Or, enter the command to download a boot code file: CFE>flash uart0 flash0.boot WARNING! Make sure that the switch is connected to an uninterrupted power supply during a boot code upgrade. This process might take 10–20 seconds. The switch waits for a file to be sent from the management station. STEP 5In the terminal emulation software, select the file and begin the transfer. For example, in Tera Term, click File > Transfer > XMODEM > Send, and then browse to select the file. When the download is complete, the switch burns the image or boot code file into Flash memory. STEP 6Enter the command to restart the switch to boot it with new software: CFE>reset -sysreset NOTE: You can verify the boot code or image version by viewing the System Summary page in the web-based switch configuration utility. Or, from the command line interface, you can enter the show sysinfo command.

Administration Rebooting the Switch Cisco Small Business SG200 Series 8-port Smart Switch74 3 Rebooting the Switch Use the Reboot page reboot the switch. To reboot the switch: STEP 1Click Administration > Reboot in the navigation window. STEP 2Select one of the following options: •Reboot—Reboots the switch using the latest save configuration. •Reboot to Factory Default—Reboots the switch using with the factory default configuration file. Any customized settings are lost. A window appears to enable you to confirm or cancel the reboot. The current management session might be terminated. STEP 3Confirm or cancel the reboot. Pinging Hosts Use the Ping page to send a Ping request from the switch to a specified IP address. You can use this feature to check whether the switch can communicate with a particular network host. To ping a network host: STEP 1Click Administration > Ping in the navigation window. STEP 2Select IPv4 or IPv6 as the Address Type.

Administration Configuring Control Packet Forwarding Cisco Small Business SG200 Series 8-port Smart Switch75 3 STEP 3For an IPv4 address, enter the following parameters: •IP Address/Hostname—Enter the IP address or the hostname of the station you want the switch to ping. •Count—Specify the number of pings to send. •Interval—Specify the number of seconds between pings sent. •Datagram Size—Specify the data size of the ping packet to send. For an IPv6 address, enter the following parameters: •Ping Type—Select Global to ping an address outside the local subnet. Select Link Local to ping an address on the local subnet. •IPv6 Address/Hostname—(Global addresses only) Enter the 128-bit global address. •IPv6 Link-Local Address—(Link-local addresses only) Enter the link local address if the address is on the same subnet as the switch. •Datagram Size—Specify the data size of the ping packet to send (between 48 and 2048 bytes). STEP 4Click Apply to send the ping. You can view the status in the Ping window. Configuring Control Packet Forwarding You can use the Control Packet For warding page to configure how the switch handles packets of the following protocol types: •CDP—The Cisco Discovery Protocol (CDP), which is supported on many types of Cisco networking equipment. CDP enables directly connected devices to share information such as their IP addresses, capabilities, and software versions. Although the switch does not itself support CDP, it can forward CDP packets on behalf of connected devices within a VLAN. •Dot1X—The IEEE 802.1X protocol defines how Extensible Authentication Protocol (EAP) packets are encapsulated over a LAN. Dot1X provides a way to authenticate users and allow or deny them access to services made available by switch ports. See 802.1X for information on configuring the Dot1X feature on the switch.

Administration Diagnostics Cisco Small Business SG200 Series 8-port Smart Switch76 3 •LLDP—Network devices use the Link Layer Discovery Protocol to advertise their capabilities to other devices. See LLDP-MED for information on configuring the LLDP feature on the switch. To configure control packet forwarding: STEP 1Click Administration > Control Packet Forwarding in the navigation window. STEP 2Select the protocol you want to configure (CDP, LLPD, or DOT1x). STEP 3Select the action that a port will take when received packets of the specified type: •Drop—All packets of the selected type are dropped. •Forward—All packets of the selected type are forwarded within the specified VLAN. This is the default action for CDP packets. •Te r m i n a t e—The packet is accepted and processed on the switch. This is the default action for LLDP and DOT1X packets and is not available for CDP packets. STEP 4Click Apply. Your changes are saved to the Running Configuration. Diagnostics You can use the diagnostics pages to perform virtual cable tests for copper and fiber optics cables, set up a diagnostic monitor for a port or VLAN, and to view CPU utilization data. Se e the following topic s for more information on the configuration pages available in the Administration > Diagnostics menu: •Testing Copper Ports •Configuring Port and VLAN Mirroring •CPU/Memory Utilization

Administration Diagnostics Cisco Small Business SG200 Series 8-port Smart Switch77 3 Testing Copper Ports Use the Copper Por ts page to perform tests on copper cables. These physical layer diagnostics can be used to help determine where in the cable a break might exist . The Copper Ports Table lists each port and the following data, which it learned through the most recent test (default data appears if the port has not been tested): •Test Result—Results of the most recent cable test. Possible values are: -Normal—Cable is working correctly. -Open—Cable is disconnected or the connector is faulty. -Short—Cable has an electrical short. -Untested—No test has been performed. -Cable status test failed—Cable status could not be determined by the test. The cable might be working. •Distance to Fault—Distance in meters from the port where the cable error, if any, was detected in the most recent cable test. •Last Update—Last time the port was tested. •Cable Length—Length of the cable in meters. To initiate a copper port test: STEP 1Click Administration>Diagnostics > Copper Ports in the navigation window. STEP 2Select a port and click Te s t. If the port has an active link while a cable test is run, the link might go down for the duration of the test. It might take several seconds to run the test . When complete, a window appears with the test results.

Administration Diagnostics Cisco Small Business SG200 Series 8-port Smart Switch78 3 Configuring Port Mirroring Use the port mirroring feature to send network traffic on a port copied to another port for analysis by a network analyzer. A mirroring session consists of a destination probe por t and at least one source port. A mirror copy of the traffic on the source port(s) being probed are transmitted from the source port to the destination probe port. A network analyzer can be connected to a destination probe port to analyze network traffic. A port configured as a destination probe port acts as a mirroring port as long as the session is operationally active. When the session is not active, the port transmits and receives traffic based on the other configuration parameters. NOTEWhen a port is configured as a probe port, the switch does not forward or receive any traffic or respond to a ping. To d i s p l a y t h e Por t and VL AN Mirroring page, click Administration > Diagnostics > Port Mirroring in the navigation window. Four mirroring sessions are available for configuration and are disabled by default. The Port Mirroring Session Table displays the following fields for each session: •Session ID—A monitoring session ID number. •Admin Mode—Indicates whether the port mirroring session is enabled or disabled. •Destination Interface— To enable this feature, select it and choose the port to where the traffic on the source port is mirrored to the destination probe port. •Source Interface—List of the source interfaces selected to participate in this mirroring session. The Port Mirroring Source Interface Table lists the source interfaces assigned to each session. You can select Filter and select a Session ID to display data for only one session. To set up port mirroring, you first assign source interfaces to a session. Then, you define a destination interface and enable the session. A session is operationally active only when the source and destination interfaces are configured and the administrative mode is enabled.

Administration Diagnostics Cisco Small Business SG200 Series 8-port Smart Switch79 3 To configure a mirroring session: STEP 1In the Port Mirroring Source Interface Table, click Add. STEP 2Select a Session ID. STEP 3Select the Source Interface and the type of traffic to be mirrored. STEP 4By using the Type radio button, specify the direction of the traffic at the source interface that is to be monitored: •Rx Only—Incoming traffic •Tx Only—Outgoing traffic •Tx and R x—Both incoming and outgoing traffic STEP 5Click Apply. Your changes are saved to the Running Configuration. You can repeat the process to assign multiple Source Interfaces to the same session. However, a source interface can be used in only one active session at a time. STEP 6In the Port Mirroring Session Table, select the session to activate and click Edit. STEP 7For the Admin Mode, select Enable. (Deselecting the Admin Mode check box retains the session configuration but disables it.) STEP 8For the Destination Interface, select Enable and select a Destination Interface port to mirror the data. ! CAUTIONWhen a port is configured as a destination probe port, the switch does not forward or receive any traffic on that port and it does not respond to any pings received on that port. All the previous configuration parameters on that port are cleared and the port must be reconfigured when mirroring is removed from the port configuration. Select Reset Session to clear any configuration parameters applied during this session. STEP 9Click Apply and then click Close. The probe session begins. NOTETo end a probe session, select the session in the Port Mirroring Session Table and click Edit. Clear the Admin Mode checkbox, click Apply, and then click Close.

Administration Enabling Bonjour Cisco Small Business SG200 Series 8-port Smart Switch80 3 To clear the current configuration for a session, select the session and click Edit. Then select Enable for Reset Session field. CPU/Memory Utilization Use the CPU/Memory Utilization page to monitor CPU and memor y usage. To display this page, click Administration > Diagnostics > CPU/Memory Utilization in the navigation window. The page displays the following data: •Refresh Rate—Specify that the page refresh with the latest data every 15, 30, or 60 seconds, or leave the default as No Refresh. •CPU Utilization Report—The utilization percentage for 5 second, 1 minute, and 5 minute intervals. •Memory Utilization Report—The following data is reported: -Allocated Memory—Amount of memory available to the operating system (OS). -Free Memor y—Amount of memory available to the OS that is currently free. -To t a l M e m o r y—Total system memory, which includes the Allocated Memory, plus free memory, plus memory reserved for use by code and data sections of the software image. Enabling Bonjour Bonjour enables the switch and the services enabled by the administrator to be discovered by using multicast DNS (mDNS). (Use the Administration > Management Services page to enable or disable the switch services.) Bonjour advertises switch services to the network and answers queries for the service types it supports, simplifying network configuration in small business environments. Bonjour is enabled by default and runs on the management VLAN. Bonjour Discovery can only be enabled globally, not on a per-port or per- VLAN basis. The switch advertises the following service types: