User's Manual 270 Document #: LTRT-42060
Mediant 2600 E-SBC
when using the proxy load-balancing or redundancy feature. For load-balancing, the device
performs keep-alive on all proxies. For Parking-type redundancy, the device performs
keep-alive only on the currently active proxy. For Homing-type redundancy, the device
performs keep-alive on the current proxy as well as the "main" proxy. When using SIP
OPTIONS, you can configure the device to consider the proxy as offline if specific SIP
response codes are received from the keep-alive messages. To ensure that a previously
offline proxy is now online, you can configure the number of required consecutive
successful keep-alive messages (SIP OPTIONS only) before the device considers the
proxy as being online. This mechanism avoids the scenario in which the device falsely
detects a proxy as being online when it is actually offline, resulting in call routing failure. To
view the connectivity status of Proxy Sets, see Viewing Proxy Set Status on page 483.
Proxy Sets are later assigned to Server-type IP Groups, in the IP Group table. When the
device sends an INVITE message to an IP Group, it sends it to the address configured for
the Proxy Set. You can also enable the classification of incoming SBC SIP dialogs to IP
Groups based on Proxy Set. If the source address of the incoming SIP dialog is the same
as the address of a Proxy Set that is assigned to an IP Group, the device classifies the SIP
dialog as belonging to that IP Group. This feature is configured using the 'Classify by Proxy
Set' parameter in the IP Group table. For configuring IP Groups, see ''Configuring IP
Groups'' on page 260.
Note: For classifying incoming SIP dialogs to IP Groups, it is highly recommended to
use ONLY the Classification table (see Configuring Classification Rules on page 361).
The following procedure describes how to configure Proxy Sets in the Web interface. You
can also configure Proxy Sets using the following management tools:
Proxy Set ID with IP addresses: table ini file parameter, ProxyIP or CLI command,
configure voip > voip-network proxy-ip > proxy-set-id
Attributes for the Proxy Set: table ini file parameter, ProxySet or CLI command,
configure voip > voip-network proxy-set
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