Cisco Sg3008 Manual
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Administration Discovery - CDP 70 Cisco Small Business 200, 300 and 500 Series Managed Switch Administration Guide (Internal Version) 5 Discovery - CDP See Configuring CDP. Ping Ping is a utility used to test if a remote host can be reached and to measure the round-trip time for packets sent from the device to a destination device. Ping operates by sending Internet Control Message Protocol (ICMP) echo request packets to the target host and waiting for an ICMP response, sometimes called a pong. It measures the round-trip time and records any packet loss. To ping a host: STEP 1Click Administration > Ping. STEP 2Configure ping by entering the fields: •Host Definition—Select whether to specify the source interface by its IP address or name. This field influences the interfaces that are displayed in the Source IP field, as described below. •IP Version—If the source interface is identified by its IP address, select either IPv4 or IPv6 to indicate that it will be entered in the selected format. •Source IP—Select the source interface whose IPv4 address will be used as the source IPv4 address for communication with the destination. If the Host Definition field was By Name, all IPv4 and IPv6 addresses will be displayed in this drop-down field. If the Host Definition field was By IP Address, only the existing IP addresses of the type specified in the IP Version field will be displayed. NOTEIf the Auto option is selected, the system computes the source address based on the destination address. •Destination IPv6 Address Type—Select Link Local or Global as the type of IPv6 address to enter as the destination IP address.
Administration Traceroute Cisco Small Business 200, 300 and 500 Series Managed Switch Administration Guide (Internal Version) 71 5 -Link Local—The IPv6 address uniquely identifies hosts on a single network link. A link local address has a prefix of FE80, is not routable, and can be used for communication only on the local network. Only one link local address is supported. If a link local address exists on the interface, this entry replaces the address in the configuration. -Global—The IPv6 address is a global Unicast IPV6 type that is visible and reachable from other networks. •Link Local Interface—If the IPv6 address type is Link Local, select from where it is received. •Destination IP Address/Name—Address or host name of the device to be pinged. Whether this is an IP address or host name depends on the Host Definition. •Ping Interval—Length of time the system waits between ping packets. Ping is repeated the number of times configured in the Number of Pings field, whether the ping succeeds or not. Choose to use the default interval or specify your own value. •Number of Pings—The number of times the ping operation is performed. Choose to use the default or specify your own value. •Status—Displays whether the ping succeeded or failed. STEP 3Click Activate Ping to ping the host. The ping status appears and another message is added to the list of messages, indicating the result of the ping operation. STEP 4View the results of ping in the Ping Counters and Status section of the page. Traceroute Traceroute discovers the IP routes along which packets were forwarded by sending an IP packet to the target host and back to the device. The Traceroute page shows each hop between the device and a target host, and the round-trip time to each such hop. STEP 1Click Administration > Traceroute. STEP 2Configure Traceroute by entering information into the following fields: •Host Definition—Select whether hosts are identified by their IP address or name.
Administration Traceroute 72 Cisco Small Business 200, 300 and 500 Series Managed Switch Administration Guide (Internal Version) 5 •IP Version—If the host is identified by its IP address, select either IPv4 or IPv6 to indicate that it will be entered in the selected format. •Source IP—Select the source interface whose IPv4 address will be used as the source IPv4 address for communication messages. If the Host Definition field was By Name, all IPv4 and IPv6 addresses will be displayed in this drop-down field. If the Host Definition field was By IP Address, only the existing IP addresses of the type specified in the IP Version field will be displayed. NOTEIf the Auto option is selected, the system computes the source address based on the destination address. •Destination IPv6 Address Type—Select Link Local or Global as the type of IPv6 address to enter. -Link Local—The IPv6 address uniquely identifies hosts on a single network link. A link local address has a prefix of FE80, is not routable, and can be used for communication only on the local network. Only one link local address is supported. If a link local address exists on the interface, this entry replaces the address in the configuration. -Global—The IPv6 address is a global Unicast IPV6 type that is visible and reachable from other networks. •Link Local Interface—If the IPv6 address type is Link Local, select from where it is received. •Host IP Address/Name—Enter the host address or name. •TTL—Enter the maximum number of hops that Traceroute permits. This is used to prevent a case where the sent frame gets into an endless loop. The Traceroute command terminates when the destination is reached or when this value is reached. To use the default value (30), select Use Default. •Timeout—Enter the length of time that the system waits for a frame to return before declaring it lost, or select Use Default. STEP 3Click Activate Traceroute. The operation is performed. A page appears showing the Round Trip Time (RTT) and status for each trip in the fields: •Index—Displays the number of the hop. •Host—Displays a stop along the route to the destination.
Administration Traceroute Cisco Small Business 200, 300 and 500 Series Managed Switch Administration Guide (Internal Version) 73 5 •Round Trip Time (1-3)—Displays the round trip time in (ms) for the first through third frame and the status of the first through third operation.
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