Avaya G430 Manual page 280

WAN interfaces
Root level
command
Dynamic CAC
Dynamic Call Admission Control (CAC) provides enhanced control over WAN bandwidth.
When Dynamic CAC is enabled on an interface, the Branch Gateway informs the MGC of the
actual bandwidth of the interface and instructs the MGC to block calls when the bandwidth is
exhausted.
Dynamic CAC is especially useful in situations where a primary link is down and a backup link
with less bandwidth than the primary link is active in its place. Without dynamic CAC, the MGC
is unaware that the interface has switched over to the backup link. Thus, the MGC is unaware
of the resulting changes in network topology and bandwidth available for the interface.
Consequently, the MGC might allow calls through the interface that require more than the
currently available bandwidth.
Note:
Dynamic CAC works in conjunction with the Avaya Aura
Admission Control: Bandwidth Limitation (CAC-BL) feature. A related feature is Inter-
Gateway Alternate Routing (IGAR), which provides a mechanism to re-route bearer traffic
from the WAN to the PSTN under certain configurable conditions. For more information on
CAC-BL and IGAR, see Administrator Guide for Avaya Aura
280 Administering Avaya G430 Branch Gateway
Command
keepalive-icmp Set the number of consecutive failed
keepalive packets necessary to set the
failure-
interface's keepalive status as down. The
retries
default value is 4.
keepalive-icmp Set the interval (in seconds) between
keepalive packets. The default value is 5.
interval
keepalive-icmp Set the source IP address of the keepalive
packets. The default value is the interface's
source-address
primary IP address.
keepalive-icmp Set the number of consecutive successful
keepalive packets necessary to set the
success-
interface's keepalive status as up
retries
keepalive-icmp
Set the timeout (in seconds) for receiving the
keepalive response. The default value is 1.
timeout
show Display information about the extended
keepalive settings
keepalive-icmp
Comments? infodev@avaya.com
Description
This parameter is only relevant for the WAN
Fast Ethernet ports.
®
Communication Manager Call
®
Communication Manager.
October 2013