لطفا منتظر باشید ...
Publisher| pathping |
ping and tracert to trace
packet loss due to routers over a routed path through an
internetwork. pathping gives additional
information that neither of these commands provides.
Syntax
pathping [-n] [-h maxhops] [-g hostlist] [-p msec] [-q queries] [-w msec] [-
T] [-R] target
Options
- -n
Does not resolve IP addresses to hostnames- -h maxhops
Specifies maximum number of hops to traverse (the default is 30 hops)- -g hostlist
Permits consecutive hosts to be separated by intermediate gateways
along hostlist- -p msec
Specifies how many milliseconds to wait between consecutive pings
(default is 250 msec, or 0.25 sec)- -q queries
Specifies number of queries issued to each host along the route
(default is 100 queries)- -w msec
Specifies how many milliseconds to wait for a reply (default is 3,000
msec or 3 seconds)- -T
Checks which routers don't have layer-2 priority
configured- -R
Checks which routers support Resource Reservation Setup Protocol
(RSVP)- target
Identifies hostname or IP address of remote target host
Examples
Use pathping to check for congestion along the
route from test.mtitcanada.com to
www.gov.mb.ca :
pathping -n www.gov.mb.ca
Tracing route to www.gov.mb.ca [198.163.12.46]
over a maximum of 30 hops:
0 205.200.52.64
1 205.200.52.1
2 205.200.52.6
3 205.200.28.66
4 205.200.27.54
5 192.35.252.242
6 198.163.12.46
Computing statistics for 150 seconds...
Source to Here This Node/Link
Hop RTT Lost/Sent = Pct Lost/Sent = Pct Address
0 205.200.52.64
0/ 100 = 0% |
1 128ms 0/ 100 = 0% 0/ 100 = 0% 205.200.52.1
0/ 100 = 0% |
2 122ms 0/ 100 = 0% 0/ 100 = 0% 205.200.52.6
0/ 100 = 0% |
3 138ms 0/ 100 = 0% 0/ 100 = 0% 205.200.28.66
15/ 100 = 15% |
4 132ms 5/ 100 = 5% 6/ 100 = 6% 205.200.27.54
0/ 100 = 0% |
5 124ms 7/ 100 = 7% 0/ 100 = 0% 192.35.252.242
1/ 100 = 1% |
6 127ms 6/ 100 = 6% 0/ 100 = 0% 198.163.12.46
Trace complete.
Notes
pathping first displays the route taken to the
remote target in the fashion of the tracert
command. After an indicated period of time during which
pathping collects necessary statistics, it
displays the efficiency of the route by showing:
- Hop
Local host 0. Each remote host along the route increments the hop
count by 1.- RTT
Round-trip time along the route.- Source to HereLost/Sent = Pct
Cumulative packets lost by this point along the route, expressed as
both a fraction and a percentage. pathping sends
100 ICMP packets to each host along the route, so the results are
statistical (and therefore don't add up when
comparing different hops).- This Node/LinkLost/Sent = Pct
Packets lost on this hop (between this host and the previous one),
expressed as both a fraction and a percentage. There are actually two
sets of results here:- Loss rates for routers (indicated with the IP address in the Address
column). When this is high, the router is congested. - Loss rates for links (indicated with | in the Address column). When
this is high, the link is congested.
- Loss rates for routers (indicated with the IP address in the Address
- Address
IP address of each host along the route.
See Also
ping, TCP/IP ,
tracert
