Prerequisites
This section contains a list of prerequisites for installing the SIP for
Packet Trunking - NAR feature. All items should be verified prior to
executing any step in the provisioning sequence.
• Examine office records to determine a suitable SM-2000 to serve
as the SIP Global SM. The SM-2000 must be equipped with a
PSU2. The absolute minimum equipage required is a PSU2 with
one or more shelves with DF2 and at least five empty slots for
installing PHs. The PHs must be available in PSU-0 if dual-PSU
(two PSU2s) is equipped. SIP cannot be provisioned on PSU-1 of
a dual PSU. If there are no DF2-equipped shelves with enough
empty slots, it will be necessary to order a new PSU2 shelf with
a DF2.
Ideally, the SM-2000 selected should not be equipped with any
trunks or lines or other call-processing roles. This reduces the
chances of interference. The SM-2000 selected could be an
existing SS7 GSM, but for additional reliability, it is
recommended that the two global PSU2 functionalities are
separate. If the SIP GSM goes through a full init or a duplex
PSUCOM failure, calls can still be routed through SS7 when the
two global PSU2 functionalities are separate.
• Examine office records to determine SM for which SM-2000s are
provisioned with OIU-IP/OFI protection groups to serve as IP
bearer endpoints.
• Examine the office records and traffic measurements occupancy
reports to determine which SM-2000s have the available capacity
to serve as SIP call processing SMs.
• Identify the adjacent layer 2 switches and/or IP routers external
to the 5ESS
®
switch to which the Ethernet links carrying the SIP
signaling traffic will be connected for the 5ESS
®
switch as well
as for the adjacent routers.
• Identify the necessary IP addresses for the 5ESS
®
switch as well
as for the adjacent routers. There can be a maximum of two
external IP addresses assigned to the Ethernet/IP interface for
each processor group provisioned on the SIP GSM when SCTP
transport is used. When UDP transport is used, only one IP
address is used for the Ethernet/IP interface of a processor group.
• When SCTP transport is used, identify the IP addresses and
SCTP ports on the other SIP-enabled switches in the network to
which the 5ESS
®
switch will be connecting SIP calls. A
maximum of two far end addresses per association are supported.
Provisioning Sequences
Provisioning
....................................................................................................................................................................................................................................
235-200-118
Issue 3.02B, March 2007
Lucent Technologies
5-9
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