3Com S7902E Command Reference Manual - page 2270
1-25
Description
Use the
tos
command to configure the value of the ToS field in the IP header in an NQA probe packet.
Use the
undo tos
command to restore the default.
By default, the ToS field in the IP header of an NQA probe packet is 0.
Examples
# Configure the ToS field in a IP packet header in an NQA probe packet as 1.
[Sysname] nqa entry admin test
[Sysname-nqa-admin-test] type icmp-echo
[Sysname-nqa-admin-test-icmp-echo] tos 1
ttl
Syntax
ttl
value
undo ttl
View
DLSw, FTP, HTTP, ICMP-echo, SNMP, TCP, UDP-echo, UDP-jitter test type view
Default Level
2: System level
Parameters
value
: Maximum number of hops a probe packet traverses in the network, in the range 1 to 255.
Description
Use the
ttl
command to configure the maximum number of hops a probe packet traverses in the
network.
Use the
undo ttl
command to restore the default.
By default, the maximum number of hops that a probe packet can traverse in a network is 20.
Note that after you configure the
route-option bypass-route
command, the maximum number of hops
a probe packet traverses in the network is 1, and the
ttl
command does not take effect.
Examples
# Configure the maximum number of hops that a probe request can traverse in a network as 16.
[Sysname] nqa entry admin test
[Sysname-nqa-admin-test] type icmp-echo
[Sysname-nqa-admin-test-icmp-echo] ttl 16