Verifying And Monitoring Gtp Inspection - Cisco 7604 Configuration Manual

Chapter 22 Applying Application Layer Protocol Inspection

Verifying and Monitoring GTP Inspection

To display GTP configuration, enter the show service-policy inspect gtp command in privileged EXEC
mode. For the detailed syntax for this command, see the command page in the Catalyst 6500 Series
Switch and Cisco 7600 Series Router Firewall Services Module Command Reference.
Use the show service-policy inspect gtp statistics command to show the statistics for GTP inspection.
The following is sample output from the show service-policy inspect gtp statistics command.
hostname# show service-policy inspect gtp statistics
GPRS GTP Statistics:
version_not_support
unknown_msg
unexpected_data_msg
mandatory_ie_missing
optional_ie_incorrect
ie_out_of_order
total_forwarded
signalling_msg_dropped
signalling_msg_forwarded
total created_pdp
total created_pdpmcb
pdp_non_existent
You can use the vertical bar (|) to filter the display. Type ?| for more display filtering options.
Use the show service-policy inspect gtp pdp-context command to display PDP context-related
information. The following is sample output from the show service-policy inspect gtp pdp-context
command.
hostname# show service-policy inspect gtp pdp-context detail
1 in use, 1 most used, timeout 0:00:00
Version TID
v1
The PDP context is identified by the tunnel ID, which is a combination of the values for IMSI and
NSAPI. A GTP tunnel is defined by two associated PDP contexts in different GSN nodes and is
identified with a Tunnel ID. A GTP tunnel is necessary to forward packets between an external packet
data network and a MS user.
You can use the vertical bar (|) to filter the display, as in the following example:
hostname# show service-policy gtp statistics | grep gsn
Catalyst 6500 Series Switch and Cisco 7600 Series Router Firewall Services Module Configuration Guide using ASDM
OL-20748-01
1234567890123425
user_name (IMSI): 214365870921435
primary pdp: Y
sgsn_addr_signal:
ggsn_addr_signal:
sgsn control teid:
ggsn control teid:
seq_tpdu_up:
signal_sequence:
upstream_signal_flow:
downstream_signal_flow:
RAupdate_flow:
0 msg_too_short
0 unexpected_sig_msg
0 ie_duplicated
0 mandatory_ie_incorrect
0 ie_unknown
0 ie_unexpected
0 total_dropped
0 data_msg_dropped
0 data_msg_forwarded
0 total deleted_pdp
0 total deleted_pdpmcb
0
MS Addr SGSN Addr
10.0.1.1 10.0.0.2 0:00:13
MS address:
nsapi: 2
10.0.0.2 sgsn_addr_data:
10.1.1.1 ggsn_addr_data:
0x000001d1 sgsn data teid:
0x6306ffa0 ggsn data teid:
0 seq_tpdu_down:
0
0 upstream_data_flow:
0 downstream_data_flow:
0
GTP Inspection
0
0
0
0
0
0
0
0
0
0
0
Idle APN
gprs.example.com
10.5.1.1
10.0.0.2
10.1.1.1
0x000001d3
0x6305f9fc
0
0
0
22-39