CHAPTER18 Core Entities
Mediant 4000 SBC | User's Manual
Parameter Description
■ The feature is applicable only to Server-type IP
Groups.
■ To support the feature, you must enable the keep-
alive mechanism of the Proxy Set that is associated
with the IP Group (see Configuring Proxy Sets).
■ If the Proxy Set is configured with multiple proxies
(addresses) and at least one of them is "alive", the
displayed status is "Connected". To view the
connected proxy server, see Viewing Proxy Set
Status.
■ The "Connected" status also applies to scenarios
where the device rejects calls with the IP Group due
to low QoE (e.g., low MOS), despite connectivity.
SBC General
'Classify By Proxy Set'
classify-by-proxy-set
[IPGroup_ClassifyByProxySet]
Enables classification of incoming SIP dialogs
(INVITEs) to Server-type IP Groups based on Proxy Set
(assigned using the IPGroup_ProxySetName
parameter).
■ [0] Disable
■ [1] Enable = (Default) The device searches the
Proxy Sets table for a Proxy Set that is configured
with the same source IP address as that of the
incoming INVITE (if host name, then according to
the dynamically resolved IP address list). If such a
Proxy Set is found, the device classifies the INVITE
as belonging to the IP Group associated with the
Proxy Set.
Note:
■ The parameter is applicable only to Server-type IP
Groups.
■ For security, it is recommended to classify SIP
dialogs based on Proxy Set only if the IP address of
the IP Group is unknown. In other words, if the Proxy
Set associated with the IP Group is configured with
an FQDN. In such cases, the device classifies
incoming SIP dialogs to the IP Group based on the
DNS-resolved IP address. If the IP address is
known, it is recommended to use a Classification
rule instead (and disable the Classify by Proxy Set
feature), where the rule is configured with not only
the IP address, but also with SIP message
characteristics to increase the strictness of the
classification process (see Configuring
Classification Rules).
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