AudioCodes Mediant 800B MSBR User Manual page 286

Parameter
Web/EMS: Is Proxy Hot Swap
CLI: voip-network proxy-set > is-proxy-hot-
swap
[ProxySet_IsProxyHotSwap]
Web/EMS: Proxy Redundancy Mode
CLI: voip-network proxy-set > proxy-
redundancy-mode
[ProxySet_ProxyRedundancyMode]
User's Manual
Description
configured). After this list is compiled, the Proxy
Keep-Alive mechanism (according to parameters
EnableProxyKeepAlive and ProxyKeepAliveTime)
tags each entry as 'offline' or 'online'. Load balancing
is only performed on Proxy servers that are tagged
as 'online'. All outgoing messages are equally
distributed across the list of IP addresses.
REGISTER messages are also distributed unless a
RegistrarIP is configured. The IP addresses list is
refreshed according to ProxyIPListRefreshTime. If a
change in the order of the entries in the list occurs, all
load statistics are erased and balancing starts over
again.

[2] Random Weights = The outgoing requests are not
distributed equally among the Proxies. The weights
are received from the DNS server, using SRV
records. The device sends the requests in such a
fashion that each Proxy receives a percentage of the
requests according to its' assigned weight. A single
FQDN should be configured as a Proxy IP address.
Random Weights Load Balancing is not used in the
following scenarios:

The Proxy Set includes more than one Proxy IP
address.

The only Proxy defined is an IP address and not
an FQDN.

SRV is not enabled (DNSQueryType).

The SRV response includes several records with
a different Priority value.
Enables the Proxy Hot-Swap redundancy mechanism,
which provides real-time switching from the primary
Proxy server to redundant Proxies when no response is
received from the primary.

[0] No (default)

[1] Yes = The device sends the SIP
INVITE/REGISTER message to the first address
(Proxy/Registrar server) listed in the Proxy Set. If a
SIP response is received and this response code is
defined in the 'Keep Alive Failure Response'
parameter (above), the device assumes the Proxy as
down and sends the message again; otherwise, the
device assumes the proxy "alive" and does not send
the message again. Each time a defined response
code is received, the device re-sends the message.
This can occur until a user-defined maximum number
of retransmissions, configured by the HotSwapRtx
parameter, after which the device sends the same
message to the next address (redundant
Proxy/Registrar), and so on. If there is no response
from any of the Proxies, the device goes through the
address list again until a "live" Proxy is located.
Determines whether the device switches from a
redundant Proxy to the primary Proxy when it becomes
available again.

[-1] Not configured = (Default) The global parameter,
286
Mediant 800B MSBR
Document #: LTRT-12813