3Com 7750 Series Command Reference Manual page 108

3Com Switch 7750 Series
Command Reference Guide — IP / IPX
Sent
packet:
2.1.8 ip
Syntax
ip { ttl-expires | unreachables }
undo ip { ttl-expires | unreachables }
View
System view
Parameter
ttl-expires: Configure whether to send TTL timeout packets to CPU.
unreachables: Configure whether to send unreachable packets to CPU.
Description
Use the ip { ttl-expires | unreachables } command to configure to send TTL timeout
packets and unreachable packets to CPU.
Use the undo ip { ttl-expires | unreachables } command to cancel the configuration.
By default, unreachable packets are not sent to the CPU, while TTL timeout packets
are sent to the CPU.
Example
# Configure to send unreachable packets to CPU.
<3Com>system-view
System View: return to User View with Ctrl+Z.
[3Com] ip unreachables
Field
total broadcast
multicast packets
no socket broadcast or
multicast packets
not delivered, input
socket full
input packets missing
pcb cache
Total
Chapter 2 IP Performance Configuration
Description
or Total number of transmitted broadcast or
multicast packets
Total number of transmitted broadcast or
multicast packets whose sockets are not found
Number of not delivered packets because the
socket cache is full
Number of packets missing pcb cache
Total number of transmitted UDP packets
2-12
Commands