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HNB-GW Service Configuration Procedures
RTP Pool Configuration
This configuration sets the IP pools for assigning IP addresses per session manager. The session manager acts as a
mediator between HNB and MSC, shielding the IP address details of either end-point from the other one. It works on
both way of connection in establishing a RTP session between the HNB and HNB-GW over Iuh and between HNB-GW
and the core network over IuCSoIP. Upon successful authentication, the session manager instances are assigned an RTP
IP address during HNB-GW service bringing up and similarly for CS-network connectivity in case of IuCSoIP.
IP addresses can be dynamically assigned from a single pool/a group of IP pools/a group of IP pool groups. The
addresses/IP pools/ IP pool groups are placed into a queue in each pool or pool group. An address is assigned from the
head of the queue and, when released, returned to the end. This method is known as least recently used (LRU).
When a group of pools have the same priority, an algorithm is used to determine a probability for each pool based on the
number of available addresses, then a pool is chosen based on the probability. This method, over time, allocates
addresses evenly from the group of pools.
Important:
used more frequently.
To configure the RTP IP pool:
Step 1
Create the RTP IP pool for IPv4 addresses in source context for RTP pool allocation over Iuh interface by applying the
example configuration in the IPv4 RTP Pool Creation Over IuCS section.
Step 2
Create the RTP IP pool for IPv4 addresses in destination context for RTP pool allocation over IuCS interface by
applying the example configuration in the IPv4 RTP Pool Creation Over Iuh section.
Step 3
Verify your RTP IP pool configuration by applying the example configuration in the RTP IP Pool Configuration
Verification section.
Step 4
Save your configuration to flash memory, an external memory device, and/or a network location using the Exec mode
command
save configuration
System Administration Guide and the Command Line Interface Reference.
IPv4 RTP Pool Creation Over IuCS
Use the following example to create the IPv4 address RTP pool for RTP address allocation over IuCS
interface towards CS core network.
configure
context <dest_ctxt_name>
ip pool <cs_ip_pool_name> <ip_address/mask>
end
Notes:
OL-25069-03
Note that setting different priorities on each individual pool can cause addresses in some pools to be
. For additional information on how to verify and save configuration files, refer to the
Cisco ASR 5000 Series 3G Home NodeB Gateway Administration Guide ▄
RTP Pool Configuration ▀
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