Branch Gateway Survivability - Avaya G450 Overview And Specification

Branch Gateway services
MGC
™
Dell PowerEdge
™
Dell PowerEdge
™
Dell PowerEdge
HP ProLiant DL360 G7
HP ProLiant DL360 G8
HP ProLiant DL360 G9
Avaya Converged Platform 120
Appliance: Dell PowerEdge R640
Avaya Converged Platform 130
Appliance: Dell PowerEdge R640

Branch Gateway survivability

Branch Gateway provides the following configuration options for continuous phone services:
• You can configure Branch Gateway to use up to four MGCs. Each controller can be
configured with an IPv4 and IPv6 address. Each configured address is either an IPv4
address of a TN799 (C-LAN) board connected to the server or an IPv4/IPv6 address of the
Communication Manager Processor Ethernet interface. The four addresses are grouped into
primary and secondary controllers, using a transition point to separate the two groups.
• Using connection-preserving migration, you can configure Branch Gateway to preserve the
bearer paths of stable calls if Branch Gateway migrates to another MGC, including a
Survivable Remote Server (SRS). This also applies to migration back from an SRS to the
primary MGC. A call with an established audio path between all parties is considered stable.
A call with a one-way audio path is not considered stable and therefore is not preserved. Any
change of state leads to ending the call. For example, putting a call on hold during the MGC
migration ends the call. Special features, such as conference and transfer, are not available
on preserved calls. Connection-preserving migration preserves all types of bearer
connections except BRI. PRI trunk connections are preserved.
• You can configure Standard Local Survivability (SLS) to enable a local Branch Gateway to
provide a limited MGC functionality when there is not connection to an external MGC. You
can also configure SLS from Branch Gateway using a Command Line Interface (CLI). SLS is
supported for all analog interfaces, ISDN BRI/PRI trunk interfaces, non-ISDN digital DS1
trunk interfaces (T1 Robbed Bit and E1-CAS), IP phones, IP softphones, and DCP phones.
SLS is available only in IPv4.
• You can configure Enhanced Local Survivability (ELS) by installing S8300 in Branch Gateway
as a Survivable Remote Server (SRS). In this configuration, S8300 Server is not a primary
MGC but takes over to provide continuous phone services if all external MGCs become
unavailable. Active calls continue without interruption when S8300 Server takes over.
• You can configure the dialer interface to connect to Branch Gateway primary MGC by a serial
modem if the connection between Branch Gateway and the MGC is lost.
April 2020
Type
™
R610 External
™
R620
™
R630
External
External
Avaya G450 Branch Gateway Overview and Specification
Comments on this document? infodev@avaya.com
Usage
ECC
ECC
ECC
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