In a general packet radio system (GPRS) network, DNS is introduced to
implement domain name resolution function. The following procedures
require domain name resolution to translating between IP and domain
name: Packet Data Protocol (PDP) context
activation procedures, inter-SGSN routing area update (RAU) procedures,
and inter-SGSN serving RNC (SRNC) relocation procedures.

Figure 1 shows the networking of DNS with SGSN.
Figure 1 DNS Networking With SGSN


http://localhost:7904/pages/31185199/02/31185199/02/resources/figure/cn_10_23_1430023_01.png

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