Alcatel-Lucent 7210 SAS Configuration Manual page 41

Router Interface ICMP Commands
icmp
Syntax icmp
Context config>router>interface
Description
This command enables access to the context to configure Internet Control Message Protocol (ICMP)
parameters on a network IP interface. ICMP is a message control and error reporting protocol that
also provides information relevant to IP packet processing.
redirects
Syntax redirects [number seconds]
no redirects
Context config>router>if>icmp
Description
This command enables and configures the rate for ICMP redirect messages issued on the router
interface.
When routes are not optimal on this router, and another router on the same subnetwork has a better
route, the router can issue an ICMP redirect to alert the sending node that a better route is available.
The redirects command enables the generation of ICMP redirects on the router interface. The rate at
which ICMP redirects are issued can be controlled with the optional number and time parameters by
indicating the maximum number of redirect messages that can be issued on the interface for a given
time interval.
By default, generation of ICMP redirect messages is enabled at a maximum rate of 100 per 10 second
time interval.
The no form of the command disables the generation of ICMP redirects on the router interface.
Default redirects 100 10 — Maximum of 100 redirect messages in 10 seconds.
Parameters number — The maximum number of ICMP redirect messages to send, expressed as a decimal integer.
seconds — The time frame, in seconds, used to limit the number of ICMP redirect messages that can
ttl-expired
Syntax ttl-expired [number seconds]
no ttl-expired
7210 SAS D, E OS Router Configuration Guide
This parameter must be specified with the time parameter.
Values 10 — 1000
be issued,expressed as a decimal integer.
Values
1 — 60
IP Router Configuration
Page 41