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SIP Release Notes 56 Document #: LTRT-26901
CPE SIP Products
6. Max-Forwards SIP Header Size:
Product
Mediant 800 MSBG Mediant 1000 MSBG
Mediant 3000/TP-6310 Mediant 3000 HA/TP-6310
Mediant 3000/TP-8410 Mediant 3000 HA/TP-8410
Management Protocol
Web INI
SNMP
EMS
CLI
This feature provides control over the SIP Max-Forwards header value. The Max-
Forwards header is used to limit the number of servers (such as proxies) that can
forward the SIP request. The Max-Forwards value indicates the remaining number of
times this request message is allowed to be forwarded. This count is decremented by
each server that forwards the request.
The Max-Forwards SIP header value is configured using the new parameter,
SBCMaxForwardsLimit. The value range can be between 1 and 70 (the default is 10).
This parameter affects the Max-Forwards header in the received message, as follows:
• If the received header’s original value is 0, the message is not passed on and is
rejected.
• If the received header’s original value is less than the parameter’s value, the
header’s value is decremented before being sent.
• If the received header’s original value is greater than the parameter’s value, the
header’s value is replaced by the parameter’s value.
7. Active SBC Call Continuity during High Availability Blade Switchover:
Product
Mediant 800 MSBG Mediant 1000 MSBG
Mediant 3000/TP-6310 Mediant 3000 HA/TP-6310
Mediant 3000/TP-8410 Mediant 3000 HA/TP-8410
Management Protocol
Web INI
SNMP
EMS
CLI
This feature provides support for maintaining active SBC call sessions during a blade
switchover. Upon blade failure, the standby blade takes over from the previously active
blade and current SBC calls are preserved (and not disconnected as in the previous
release).