Configuring Ip Group Sets - AudioCodes Mediant 4000 SBC User Manual

CHAPTER 25 Routing SBC
Parameter
Least Cost Routing
'LCR Feature'
lcr-enable
[SBCRoutingPolicy_
LCREnable]
'Default Call Cost'
lcr-default-cost
[SBCRoutingPolicy_
LCRDefaultCost]
'LCR Call Duration'
lcr-call-length
[SBCRoutingPolicy_
LCRAverageCallLength]

Configuring IP Group Sets

The IP Group Set table lets you configure up to 312 IP Group Sets. An IP Group Set is a group of IP
Groups used for load balancing of calls, belonging to the same source, to a call destination (i.e., IP
Group). Each IP Group Set can include up to five IP Groups (Server-type and/or Gateway-type
only). The chosen destination IP Group for each call depends on the configured load-balancing
policy, which can be Round Robin, Random Weights, or Homing (for more information, see the
table's description, later in this section).
Enables the Least Cost Routing (LCR) feature for the Routing
Policy.
■ [0] Disable (default)
■ [1] Enable
For more information on LCR, see
Defines whether routing rules in the IP-to-IP Routing table that
are not assigned a Cost Group are considered a higher cost or
lower cost route compared to other matched routing rules that are
assigned Cost Groups.
■ [0] Lowest Cost = (Default) The device considers a matched
routing rule (belonging to the Routing Policy) that is not
assigned a Cost Group as the lowest cost route. Therefore, it
uses the routing rule.
■ [1] Highest Cost = The device considers a matched routing
rule (belonging to the Routing Policy) that is not assigned a
Cost Group as the highest cost route. Therefore, it is only
used if the other matched routing rules that are assigned Cost
Groups are unavailable.
Note: If multiple matched routing rules without an assigned Cost
Group exist, the device selects the first matched rule in the table.
Defines the average call duration (in minutes) and is used to
calculate the variable portion of the call cost. This is useful, for
example, when the average call duration spans over multiple time
bands. The LCR is calculated as follows: cost = call connect cost
+ (minute cost * average call duration).
The valid value is 0-65533. The default is 1.
For example, assume the following Cost Groups:
■ "Weekend A": call connection cost is 1 and charge per minute
is 6. Therefore, a call of 1 minute cost 7 units.
■ "Weekend B": call connection cost is 6 and charge per minute
is 1. Therefore, a call of 1 minute cost 7 units.
Therefore, for calls under one minute, "Weekend A" carries the
lower cost. However, if the average call duration is more than one
minute, "Weekend B" carries the lower cost.
- 572 -
Mediant 4000 SBC | User's Manual
Description
Least Cost Routing.