Installation & Operation Manual
548
Document # LTRT-92224
Mediant 8000
40.1.2
Redundancy Mechanisms
For each Proxy set, one of the following mechanisms for switching between SIP Proxy
server addresses are available:
Proxy Keep Alive Redundancy
Media Gateway board periodically sends keep-alive messages to the SIP Proxy
Server. If there is no response from the Primary Proxy, Media Gateway board
tries to communicate with Redundant Proxies. When a Redundant Proxy
is found,
the Media Gateway starts using it. When connection with the Primary Proxy is
restored, Media Gateway board may either immediately revert to it or continue
using the current Redundant Proxy until a failure occurs.
See the parameters Enable Proxy Keep Alive
and Redundancy Mode.
Proxy Hot Swap Redundancy
Media Gateway board can also provide real-time switching (Hot Swap) between
the Primary and Redundant Proxies (see
Enable Proxy Hot Swap
parameter). If
the first Proxy does not respond to an INVITE message, the same INVITE
message is immediately sent to the second Proxy. See the parameters
Enable
Proxy Hot Swap
and
Proxy Hot Swap Retx
.
40.1.3
DNS Service Records (SRV)
DNS Service Records (SRV) may be used to discover the SIP Proxy servers when
their
Proxy IP
parameter contains a domain name. See the parameter
DNS Query
Type
in the SIP Protocol Settings table.
For fallback routing, when communication with the SIP Proxy is lost, or for traffic load
balancing, you can use internal routing tables (Tel to IP) inside the Media Gateway
board. See the parameters
Preferred Routing Table
and
Always Use Proxy
in the
SIP Proxy Set table.
40.1.4
SIP Proxy Sets
This section describes how to configure SIP Proxy sets.
To configure SIP Proxy sets:
1.
Click
to access the Media Gateway status screen.
2.
Select the desired Media Gateway SIP board.
3.
In the Navigation pane, select
SIP SIP General
and then in the configuration
pane, click
SIP Protocol Settings
; the SIP Protocol Settings screen is displayed.
4.
In the
Proxy Settings
tab, set
Enable Proxy
to
Yes
and configure additional
parameters as described in the table “SIP Proxy Settings” below.
5.
In the Navigation pane, select
SIP
SIP General
Proxy Set
; the SIP Proxy
Sets list is displayed.
6.
Use the
or
buttons to add or remove entries.
7.
Select a specific row in the Proxy Sets list and then in the configuration pane,
select
Proxy Set Settings
; the Proxy Set Settings screen is displayed.
Summary of Contents for Mediant 8000
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Page 33: ...Part I Hardware Overview This part describes the hardware overview of the Mediant 8000 chassis...
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Page 775: ...Part VI Maintenance This part describes the Mediant 8000 maintenance procedures...
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Page 879: ...Part VIII Appendices This part describes additional Mediant 8000 configuration procedures...
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Page 924: ...Media Gateway Mediant 8000 www audiocodes com Installation Operation Maintenance Manual...