3com S7906E 설치 설명서

 

1-1 

When maintaining and debugging the system, go to these sections for information you are interested in: 

z 

z 

Ping 

z 

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System Debugging 

z 

You can use the ping command and the tracert command to verify the current network connectivity, 

and use the debug command to enable debugging and thus to diagnose system faults based on the 

debugging information. 

You can use the ping command to verify whether a device with a specified address is reachable, and to 

examine network connectivity. 

The ping function is implemented through the Internet Control Message Protocol (ICMP):  

1)  The source device sends an ICMP echo request to the destination device. 

2)  The source device determines whether the destination is reachable based on whether it receives 

an ICMP echo reply; if the destination is reachable, the source device determines the link quality 

based on the numbers of ICMP echo requests sent and replies received, determines the distance 

between the source and destination based on the round trip time of ping packets.

 

Follow the step below to configure the ping function: 

ping [ ip ] [ -a source-ip | -c count | -f | -h ttl | -i 
interface-type interface-number | -m interval | -n | 
-p pad | -q | -r | -s packet-size | -t timeout | -tos tos 
| -v | -vpn-instance vpn-instance-name ] * host 

Check 
whether a 
specified 
address in an 
IP network is 
reachable 

ping ipv6 [ -a source-ipv6 | -c count | -m interval | 
-s packet-size | -t timeout ] * host [ -i interface-type 
interface-number ] 

Required 

Use either approach 

The ping command is 
applicable in an IPv4 
network; the ping ipv6 
command is applicable in an 
IPv6 network. 

Available in any view