Inalp Networks SmartWare Release 2.10, Руководство по настройке программного обеспечения

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96 IP Interface Configuration
ICMP redirect: send only
State: OPENED
Binding: ethernet 0 0 0/ethernet/ip
------------------------------------------------------------
Context:
router
Name: wan
IP Address: 172.17.100.210 255.255.255.0
MTU: 1500
ICMP router-discovery: enabled
ICMP redirect: send only
State: CLOSED
Binding: ethernet 0 0 1/ethernet/ip
…
12.12 Testing Connections with the ping Command
As an aid to diagnosing basic network connectivity, many network protocols support an echo
protocol. The protocol involves sending a special datagram to the destination host, then waiting for a
reply datagram from that host. Results from this echo protocol can help in evaluating the path-to-
host reliability, delays over the path, and whether the host can be accessed or is functioning.
Procedure
To invoke the echo protocol to the destination host at IP address ip-address
Mode
Either operator or administrator execution
Command Purpose
Step 1 node >ping ip-address
Sends ICMP ECHO_REQUEST packets to
network hosts at IP address
ip-address
When using
ping for fault isolation, it should first be run on the respective SmartNode interface, to
verify that the local LAN or WAN interface is up and running. Then hosts and gateways further and
further away should be “pinged”. 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 in calculating the minimum/average/maximum round-trip
time numbers. When five ICMP echo requests packets have been sent and received a brief summary
is displayed.
Testing Connections w ith the ping Command Example
The following example shows how to invoke the echo protocol to the destination host at IP address
172.16.1.10 using the ping command from operator execution mode.
SN> 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
Software Configuration Guide Release 2.10, Revision 1.00