Patton electronic SmartNode 4110 Series manual Mode Either operator or administrator execution

SmartWare Software Configuration Guide10 • IP interface configuration

Mode: Either operator or administrator execution

Step	Command	Purpose
1	node#ping <address> [<num-	Sends ICMP ECHO_REQUEST packets to network hosts at IP
	ber> ] [timeout <seconds> ]	address <address>
	[packet-size <packet-size> ] [ttl
	<ttl> ] [traffic-class <traffic-
	class> ]

Where the parameters are defined as follows:

•[<number>] optional parameter which indicates how many pings are sent

•[timeout <seconds>] optional parameter which indicates the time-out period of the ping

•[packet-size<packet-size>]optional parameter which indicates the number of octets in the ping

•[ttl <ttl>] optional parameter which indicates the time-to-live value

•[traffic-class<traffic-class>]which indicates the IP packets in a traffic class are routed via the defined Nexthop in the routing table entry for that traffic-class. Default: local-default.

When using ping for fault isolation, you should first run it on the respective IP interface to verify that the local LAN or WAN interface is up and running. Then, you should “ping” hosts and gateways further away. Round- trip times and packet loss statistics are computed. If duplicate packets are received, they are not included in the packet loss calculation, although the round trip time of these packets is used to calculate the minimum/aver- age/maximum round-trip time numbers. When five ICMP echo requests packets have been sent and received, a brief summary is displayed.

Example: Testing connections with the ping command

The following example shows how to invoke the echo protocol to the destination host at IP address 172.16.1.10 by using the ping command from operator execution mode.

node>ping 172.16.1.10
Sending 5 ICMP echo requests		to 172.16.1.10, timeout is 1 seconds:
Reply from 172.16.1.10: Time		<10ms
Reply from 172.16.1.10: Time		<10ms
Reply from 172.16.1.10: Time		<10ms.
Reply from 172.16.1.10: Time		<10ms
Reply from 172.16.1.10: Time		<10ms
Ping statistics for 172.16.1.10:
Packets: Sent 5, Received 5, Lost 0 (0% loss),
RTT:	Minimum <10ms, Maximum <10ms, Average <10ms

IP link supervision

IP Link Supervision is one of the modules you have to configure in order to use the PPP dial-up over ISDN feature. Also consider the dial-upcommand (page 337) on the IP interface and the interface dialer mode (page 331) in context cs.

IP link supervision can be used to periodically check the reachability of some hosts over a specific link. There- fore an ICMP echo request is sent to the configured IP address. After a configurable number of failed requests the host is considered unreachable. If all configured hosts are unreachable, the interface will be closed for nor-

IP interface configuration task list 128