Cisco Cisco Packet Data Gateway (PDG)
SGSN Changes in Release 16
SGSN Enhancements for 16.0 ▀
Release Change Reference, StarOS Release 16 ▄
523
Command Changes
shutdown
A new CLI command
shutdown
is added under the PSP instance configuration mode to bring down and lock the SCTP
association.
config
ss7-routing-domain routing_domain_id variant variant_type
peer-server id id
psp instance psp_instance
[ no ] shutdown
exit
Notes:
On configuring
shutdown
, the PSP is brought down via a SCTP Shutdown procedure (if association is already
ESTABLISHED) or Abort (any other association state) and it is marked LOCKED. The SGSN does not initiate
any messages towards the peer and any message from the peer will be responded with a SCTP Abort, when the
PSP is in a LOCKED state.
any messages towards the peer and any message from the peer will be responded with a SCTP Abort, when the
PSP is in a LOCKED state.
On configuring
no shutdown
, the PSP is marked unlocked and the SGSN initiates an association establishment
towards the peer. This is the default configuration for a PSP. The default is
no shutdown
.
Listed below are the error codes added to support the Peer-Server blocking feature:
Once the CLI is configured if the operator tries to re-configure the same CLI again, a CLI failure is
displayed. This suppresses the Link Manager error logs while trying to push same configuration twice.
The error code displayed is:
Failure: PSP: Re-configuring same value
During an ongoing shutdown procedure if the command
no shutdown
is executed, the execution of
the command will be unsuccessful and a CLI failure error message is displayed.
The error code displayed is:
Cannot unlock PSP during ongoing shutdown procedure
This ensures that the shutdown procedure is graceful. The command
no shutdown
can be configured
only when there is no ongoing shutdown procedure.
CSCuh31686 - Authentication vector management in S4 SGSN
Feature Changes
Authentication Vector Management in the SGSN