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Direct Tunnel
Black List
GGSN Selection
Direct Tunnel
Verifying the RNC Configuration
Use the following command to display and verify the direct tunnel configuration in the RNC configuration:
show iups-service name
The output of this command displays all of the configuration, including direct tunnel for the specified IuPS service.
IService name
...
Available RNC:
Rnc-Id
Direct Tunnel
Configuring S12 Direct Tunnel Support on the S-GW
The example in this section configures an S12 interface supporting direct tunnel bypass of the S4 SGSN for inter-RAT
handovers.
The direct tunnel capability on the S-GW is enabled by configuring an S12 interface. The S4 SGSN is then responsible
for creating the direct tunnel by sending an FTEID in a control message to the MME over the S3 interface. The MME
forwards the FTEID to the S-GW over the S11 interfaces. The S-GW responds with it's own U-FTEID providing the
SGSN with the identification information required to set up the direct tunnel over the S12 interface.
Use the following example to configure this feature:
configure
context <egress_context_name> -noconfirm
interface <s12_interface_name>
ip address <s12_ipv4_address_primary>
ip address <s12_ipv4_address_secondary>
exit
exit
port ethernet <slot_number/port_number>
no shutdown
bind interface <s12_interface_name> <egress_context_name>
<service_name>
: iups1
: 1
: Not Restricted
Cisco ASR 5x00 Packet Data Network Gateway Administration Guide ▄
Direct Tunnel Configuration ▀
: Disabled
: Disabled
: Enabled
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