Alcatel-Lucent 7750 SR Manual page 944

IES Interface Commands
arp-timeout
Syntax arp-timeout seconds
no arp-timeout
Context config>service>ies>interface
config>service>ies>sub-if>grp-if
Description This command configures the minimum time in seconds an ARP entry learned on the IP interface will
be stored in the ARP table. ARP entries are automatically refreshed when an ARP request or
gratuitous ARP is seen from an IP host, otherwise, the ARP entry is aged from the ARP table. If arp-
timeout is set to a value of zero seconds, ARP aging is disabled.
When the arp-populate and lease-populate commands are enabled on an IES interface, the ARP
table entries will no longer be dynamically learned, but instead by snooping DHCP ACK message
from a DHCP server. In this case the configured arp-timeout value has no effect.
The no form of this command restores arp-timeout to the default value.
Default
14400 seconds
Parameters
seconds — The minimum number of seconds a learned ARP entry will be stored in the ARP table,
bfd
Syntax bfd transmit-interval [receive receive-interval] [multiplier multiplier [echo-receive echo-
interval] [type cpm-np]
no bfd
Context config>service>ies>interface
Description
This command specifies the BFD parameters for the associated IP interface. If no parameters are
defined the default value are used.
The multiplier specifies the number of consecutive BFD messages that must be missed from the peer
before the BFD session state is changed to down and the upper level protocols (OSPF, IS-IS, BGP or
PIM) is notified of the fault.
The no form of the command removes BFD from the interface.
Important notes: On the 7750-SR, the transmit-interval, receive receive-interval, and echo-receive
echo-interval values can only be modified to a value less than 100 when:
To remove the type cpm-np option, re-issue the bfd command without specifying the type
parameter.
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expressed as a decimal integer. A value of zero specifies that the timer is inoperative and learned
ARP entries will not be aged.
Values
0 — 65535
1. The type cpm-np option is explicitly configured.
2. The service is shut down (shutdown)
3. The interval is specified 10 — 100000.
4. The service is re-enabled (no shutdown)
7750 SR OS Services Guide