Patton electronic SmartNode 4110 Series Check connectivity of an IP link, Show IP link status

SmartWare Software Configuration Guide 10 • IP interface configuration

mal traffic and the IP router removes all routes pointing to that interface. Now, traffic previously flowing over that interface is routed through the interface with IP routes of a higher metric. However the interface contin- ues to send ICMP echo requests. After a configurable number of ICMP replies the host is reachable again, and the interface will be opened for normal traffic.

Check connectivity of an IP link

Mode: context ip/interface

Step	Command	Purpose
1	[name] (if-ip) [interface]#[no] check-con-	Configures or removes a host to ping. Source-
	nectivity ping <ip-address> [source-	address specifies the IP source address for the
	address <ip-address>] [tolerance-down	ICMP packets. Tolerance-down specifies the
	<number>] [tolerance-up <number>]	number of pings allowed to fail (Default 3).
	[interval <seconds>] [timeout <sec-	Tolerance-up specifies the number of success-
	onds>]	ful pings required to activate link (Default 1).
		Interval specifies the interval in which the
		pings are sent (Default 10). Timeout specifies
		the time in seconds to wait for an answer
		(Default 3).

Show IP link status

The following command shows the status of connectivity.

Mode: enable

Step	Command	Purpose
1	[name]#show ip connectivity [<inter-	Shows the status of connectivity.
	face>]

Debug connectivity

The following command enables logging of connectivity events.

Mode: enable

Step	Command	Purpose
1	[name]#debug connectivity	Enables logging of connectivity events and
		state changes.

Debug ARP

You may use the debug arp and show arp commands to assist you in debugging IP connectivity and its cor- responding interfaces.

IP interface configuration task list 129