GGSN Overview

GGSN-MPG O&M

CBC/XIP/T

Efengju

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GGSN-MPG O&M | Ericsson Internal | 2010-07-14 |

Agenda

› GGSN network overview› Interfaces› Hardware› Architecture› Configuration › Useful CLI› tracing


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GPRS network

› GGSN acts as gateway between GSM/WCDMA networks and IP networks

› Standard IETF protocols are used towards IP networks

› 3GPP standard GPRS Tunneling Protocol (GTP) used towards SGSN


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GGSN Interfaces

› Gi, Gn/Gp, Gom


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Gi interface

› Used to connect to IP networks› Provide connectivity to both Internet and corporate

networks› May be used for certain session management operations,

e.g. RADIUS- and DHCP-servers may be located on Gi› Supports both IPv4 and IPv6 connectivity


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Gn/Gp

› Gn connects to SGSN in own PLMN, Gp to SGSN in other PLMN

› From GGSN point of view, Gn and Gp are identical› Used to tunnel GTP packets to and from SGSN› On session setup, SGSN selects GGSN based on Access

Point Name (APN)


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Gom

› Used for Operation & Maintenance and to connect to billing systems and service nodes in own PLMN

› Gom is an Ericsson interface, not standardized› Consists of several protocols and procedures:–CLI-interface, connect through SSH or Telnet to manage node–OSS interface, uses JUNOScript to manage node–Provide CDRs (Gz), either through GTP´(GTP prime) or FTP/SFTP–SACC control traffic to billing nodes (Gx and Gy)– Lawful Intercept, and more…


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GGSN Logical networks

› Using GGSN’s extensive routing capabilities, the traffic may be split into several logical networks (VPNs)

› Gives capability to provide separate IP address spaces to each logical network

› Different APNs may be separated


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Juniper M20 exploded view

Power supplies

Routing enginesRear fan tray

Midplane

Front fan trays

4 FPCs

2 SSBs

Craft interface

4 PICs per FPC


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GGSN Components ( M20 )

Chassis System and Switch Board (SSB) Routing Engine (RE) Flexible PIC Concentrator (FPC) Physical Interface Cards (PIC) Power Supplies Fan Trays

FPC

PIC

Fan Trays

SSB

Craft


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GGSN Components ( M20 )

Chassis System and Switch Board (SSB) Routing Engine (RE) Flexible PIC Concentrator (FPC) Physical Interface Cards (PIC) Power Supplies Fan Trays

Power supply

RE


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GGSN Components ( M120 )› Front face


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GGSN Components ( M120 )› Back end


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GGSN - System Architecture ( M20 )


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GGSN - System Architecture ( M120 )


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GGSN-MPG configuration

› Access GGSN

1.Physical Connections (per RE)

1.1 Console port

2. Ethernet port (fxp0)

3.Telnet

4. SSH (Secure Shell) v1, v2

2. Authentication Methods

1.Local authentication

2.RADIUS


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› Actions Possible to Perform at the CLI

1.Monitor (FM, PM) and Troubleshoot the Node

“show”, “clear”, “monitor”, “ping”, “trace”, etc

2.Configure the Node (CM)

“configure” “configure exclusive” Connect to Other Systems

“telnet”, “ssh”,”ftp” Copy Files

“file”, “copy” Restart Software Processes

“restart”


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› Configuration file structure

1.Groups2.System ( login, services, syslog, ntp, … etc )3.Chassis ( redundancy, routing-engine, alarm, … etc )4.Interface5.SNMP6.Routing-options7.Policy-options8.Firewall9.Routing-instances10.Services ( IPsec, IKE, ggsn, … etc )

ggsn ( APN, charging, ggsnc, ggsnu, gtp, pdp-context, radius,… etc )


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GGSN-MPG configurationglobal config

snmp Routing-instances

Sgw user plane

system charssis interface

•S11 vip•S11 routing-instance•......

•login•Services•syslog•ntp......

•S11•S5/S8•......

Sgw control plane

Feature/license charging......apn

•Cdr•Format•Log•Characteristics•Gtp-prime•......

•Alarm•Redundancy•Routing-engine•......

...... Services•Gn•Gi•Gom•S11•......

ROUTER

ggsn

Rule-space

pdppicgtpradius

Service-set

Service-based -charging

Service-based -routing

Service-identification

GGSN-MPG

SGW

GGSN/PGW

Ipsec-vpn (ike, ipsec), .....

•Diameter

•......


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Router configuration

APN

Gx

PISC

GySACC

GGSN-MPG


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Eps

Eps

Gtp Diameter

Sgw Pgw

Apn

Context level

•Command Line Interface (CLI)•Integrated with SEOS CLI•Hidden CLI

Basic System Operations Guide 190 89-LZN 708 0230/7

CPG configuration structure

Node level


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2

23

34 4

55

[local]cpg>enable[local]cpg#[local]cpg#config

[local]cpg(config)#[local]cpg(config)#context sgw-ctx

1

1 [local]cpg>

[local]cpg(config-ctx)#[local]cpg(config-ctx)#eps sgw

6 [local]cpg(config-sgw)#

6

[local]cpg(config-sgw)#? gxc-interface Associate the gxc-interface...

s11-interface Associate the s11-interface... s1u-interface Associate the s1u-interface...

[local]cpg(config-sgw)#commit[local]cpg(config-sgw)#

CPG configuration structure


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GGSN-MPG configuration – SACC

Packet Inspection & Service Classification Service

Set

SDF-id

ACRRating GroupACG

LocalPolicyTable

Credit Control QuotaCDR Support

Authorization &Policy Control

Static Dynamic

Rule Space

UserCategory

Gx Bp/Ga Gy

GGSN

S1U/Gn/Gi/sGi

TrafficRedirection

Service Aware

Charging MethodsVolume-based

Time-based

Event-based


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GGSN-MPG configuration – SACC

Configuration chain for PISC:

apn

User category default

User category 1 Rule space Service set

Header rule set

Heuristic rule set

Header rule a

Header rule b

Heuristic rule c -> SDF-ID for c

Heuristic rule d -> SDF-ID for d

Term a -> SDF-ID for a

Term b -> SDF-ID for b

<protocol> rule set

<protocol> rule aTerm e -> SDF-ID for e

Term f -> SDF-ID for f<protocol> rule b

Set service ggsn service -identification

Set service ggsn service- identification

Set service ggsn rule space

Set service ggsn service - set


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GGSN-MPG configuration – SACCapn { apn2.com { routing-instance gi37; gi-address-range 20.255.37.0/28; pgw-enabled; pdp-context { pdp-type ipv4; address { 25.64.0.0/10; } address-allocation radius; } radius { authentication { server { 10.116.37.20 secret "$9$bd2JD.mT3nC.PF/9AIR"; } } accounting { server { 10.116.37.20 secret "$9$fz/t1IcleW1RrvM8Vb"; } } } service-based-charging { control-context 3gpp; policy-control { dynamic { gx-profile pcd-pcc-gx-1 { diameter-application-system pcc-gx-1; rule-space-negotiation; } } }

credit-control { ro-profile ocs-gy-1 { diameter-application-system ocs-1; service-context-id

"[email protected]"; no-preemptive-reservation; failure { failure-action terminate; } } } }

allow-rule-space lc; user-category { default { rule-space { default lc; } credit-control-ro-profile ocs-gy-1; } } }}

Gy

PISC

Gx+

Ericsson Gy v1 [email protected]

Ericsson Gy v2 [email protected]

3GPP Gy R6

[email protected]

3GPP Gy R8

[email protected]

mailto:[email protected]





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GGSN-MPG configuration – SACCservice-based-charging { realm j20-96.com; host-name j20-96; diameter-peer { ocs-1 address 10.115.16.129 port 3869; pcc-gx-1-1 address 10.115.16.129 port

3874;} diameter-application-system { ocs-1 { destination-realm outline-ocs-1.com; application-id ro; peer ocs-1; timeout 3; request-window-size 2000; } pcc-gx-1 { destination-realm outline-gx-1.com; application-id 16777238; peer pcc-gx-1-1 { priority 50; } peer pcc-gx-1-2 { priority 50; } } }}

The following vendor-specific applications are supported:

•Ro

•Gy-3gpp ( No support for Ericsson Gy )

•Gx

•MBMS

•PCC

•16777238 3GPP R7/R8 Gx+ PCC

•16777224 3GPP R6 Gx+


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GGSN-MPG configuration - SACC

rule-space lc { service-set lc; rating-group { default { 1010; } map { 1001 access-control-rule [ 3100

3199 ]; 1002 access-control-rule 110; } } enable-access-control-rules; access-control-group { 1 access-control-rule [ 3100 3199 ]; 2 access-control-rule 110; }}

service-set lc { service-identification { service-data-flow-id { default { payload 110; } }

header-rule-sets hrs_hr_1; } }


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service-identification { unescape-conversion;

flow-limits {

max-user-child 300;

}

……

header-rule-set hrs_hr_1 {

rule hr_get_all;

}

…… header-rule hr_get_all {

term term1 { from { network-prefix [ 70.1.0.0/23 ]; } then { service-data-flow-id { payload 3199; } protocol-inspection { http-wsp-rule-set rs_http; } }}

…… http-wsp-rule-set rs_http { rule r_http; } …… http-wsp-rule r_http { term term1 { from { uri { starts-with http://; } http { operation { get; } } } then { payload 3100; } } }

……


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GGSN-MPG configuration - SACCerv@j20-40-0> show services ggsn inspection "show rules"

Answer from CPU8:rules:Rules in rule-space default Prio RuleSet Type VAPN Charge Event EDRType EventType KillFlow RuleStringRules in rule-space lc Prio RuleSet Type VAPN Charge Event EDRType EventType KillFlow RuleString 1000 lc_hrs_hr_1 CFG 0 null null none none none IP.NetworkAddress =

70.1.0.0/23 & HTTP.Analyzed = 1 1030 lc_hrs_hr_1 CFG 3199 IP.TotLen 0 none none none

IP.NetworkAddress = 70.1.0.0/2360010 fallback-lc CFG 118 IP.TotLen 0 none none none trueRules in rule-space RSp_rs_http Prio RuleSet Type VAPN Charge Event EDRType EventType KillFlow RuleString 1060 rs_http CFG 3100 IP.TotLen 0 none none none HTTP.URL

iStartsWith http:// & HTTP.Request = GET

erv@j20-40-0# delete services ggsn service-identification http-wsp-rule r_http term term1 from http

Answer from CPU8:rules:Rules in rule-space default Prio RuleSet Type VAPN Charge Event EDRType EventType KillFlow RuleStringRules in rule-space lc Prio RuleSet Type VAPN Charge Event EDRType EventType KillFlow RuleString 1000 lc_hrs_hr_1 CFG 0 null null none none none IP.NetworkAddress =

70.1.0.0/23 & HTTP.Analyzed = 1

1010 lc_hrs_hr_1 CFG 0 null null none none none IP.NetworkAddress = 70.1.0.0/23 & WSPCL.Analyzed = 1

1020 lc_hrs_hr_1 CFG 0 null null none none none IP.NetworkAddress = 70.1.0.0/23 & WSP.Analyzed = 1

1080 lc_hrs_hr_1 CFG 3199 IP.TotLen 0 none none none IP.NetworkAddress = 70.1.0.0/23

60010 fallback-lc CFG 118 IP.TotLen 0 none none none trueRules in rule-space RSp_rs_http Prio RuleSet Type VAPN Charge Event EDRType EventType KillFlow RuleString 1110 rs_http CFG 3100 IP.TotLen 0 none none none HTTP.URL

iStartsWith http:// 1120 rs_http CFG 3100 IP.TotLen 0 none none none WSPCL.URI

iStartsWith http:// 1130 rs_http CFG 3100 IP.TotLen 0 none none none WSP.URI

iStartsWith http://……

…… http-wsp-rule-set rs_http { rule r_http; } …… http-wsp-rule r_http { term term1 { from { uri { starts-with http://; } http { operation { get; } } } then { payload 3100; } } }

……


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Top right corner for field-mark, customer or partner logotypes. See Best practice for example.

Slide title 40 pt

Slide subtitle 24 pt

Text24 pt

Bullets level 2-520 pt

Header Classification (Shallow, L3L4)

URI Classification (DPI, L7, Protocol inspection)

RULE Net?

UDP?

Net?RULE RULE RULE HeuristicAnalysis

RULE

RULE

RULE

RULE

RULE

RULE

ExistingFlow traffic

Fast path

Slow path

Header inspection

DPI

Heuristic Analysis

PISC Model for capacity analysis

%DPI

Average number of evaluations

%SACC with PISC


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Recommended:

1. Direct as much traffic as possible to “No SACC” or “SACC without PISC”2. Use one unique SDF-ID per main route for observability3. Add a broad rule at the end of the header rule set4. If Recommendation 3 is used a SDF-ID MUST be added before the entry of the DPI

rule set. Otherwise the DPI rule set will be bypassed5. Direct only http traffic to DPI. Use port 80 and 80806. Add a broad “catch all” rule (http://) in the end of the DPI filter7. Move high volume URL:s to the beginning of the DPI filter(improved in CDPI 3.0)

8. Add the top 10 URL:s in the beginning of the DPI filter (improved in CDPI 3.0)

9. Use setup signaling classification if number of DPI rules is high (>100)10. Do not use tear down signaling classification11. If two start-with can replace one contains then start-with should be used

7/0363-AOT 101 057 - Optimizing the GGSN Payload Configuration


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GGSN-MPG useful CLI

› Useful CLI

1.bete@EEGGSN-RE1> show chassis hardware detail Hardware inventory:Item Version Part number Serial number DescriptionChassis 31370 M20Backplane REV 04 710-002334 CC9624 M20 BackplanePower Supply A Rev 02 740-007222 103330 DC Power SupplyPower Supply B Rev 02 740-007222 103379 DC Power SupplyDisplay REV 04 710-001519 CE0584 M20 FPM BoardRouting Engine 1 REV 16 740-005022 P12040701873 RE-3.0 ad0 977 MB SanDisk SDCFH-1024 016810L2907D3302 Compact Flash ad1 28615 MB FUJITSU MHT2030AT NN0DT421DYUV Hard DiskSSB slot 0 REV 03 710-011129 CM3063 Internet Processor IIv2 SSRAM bank 0 REV 01 710-014116 0012409 4 Mbytes SSRAM bank 1 REV 01 710-014116 0012406 4 Mbytes SSRAM bank 2 REV 01 710-014116 0012412 4 Mbytes SSRAM bank 3 REV 01 710-014116 0012407 4 Mbytes


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GGSN-MPG useful CLIFPC 1 REV 09 710-004677 CD0382 E-FPC SSRAM REV 02 710-004862 0017676 2 Mbytes SDRAM bank 0 REV 01 710-000099 0006905 64 Mbytes SDRAM bank 1 REV 01 710-000099 0006904 64 Mbytes PIC 1 REV 08 750-007641 CH7550 1x G/E IQ, 1000 BASE SFP 0 NON-JNPR MTC095472 SFP-T PIC 2 REV 11 750-004188 CD0051 1x GGSNC PIC 3 REV 12 750-002303 CE4208 4x F/E, 100 BASE-TXFPC 2 REV 09 710-004677 CC9443 E-FPC SSRAM REV 02 710-004862 0017785 2 Mbytes SDRAM bank 0 REV 01 710-000099 0006357 64 Mbytes SDRAM bank 1 REV 01 710-000099 0006359 64 Mbytes PIC 0 REV 12 750-004361 CD0084 1x GGSNU PIC 1 REV 13 750-009396 CJ4449 1x GGSNI PIC 2 REV 11 750-004188 CD0072 1x GGSNCFPC 3 REV 08 710-004677 CD7631 E-FPC SSRAM REV 02 710-004862 0016448 2 Mbytes SDRAM bank 0 REV 01 710-000099 0005178 64 Mbytes SDRAM bank 1 REV 01 710-000099 0005177 64 Mbytes PIC 0 REV 12 750-004361 CE3893 1x GGSNU PIC 1 REV 13 750-004361 CL9784 1x GGSNU PIC 2 REV 08 750-007641 CC7964 1x G/E IQ, 1000 BASE SFP 0 NON-JNPR MTC095478 SFP-T


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GGSN-MPG useful CLI2. bete@EEGGSN-RE1> show services

ggsn statistics ?

Possible completions: <[Enter]> Execute this command apn Show access point name statistics charging Show charging statistics gtp Show GPRS tunneling protocol statistics gtp-prime Show GPRS Tunneling Protocol Prime

statistics imsi Show International Mobile Subscriber Identity

statistics l2tp-tunnel Show L2TP tunnel statistics mbms Show MBMS statistics msisdn Show Mobile Station Integrated Services Digital

Network statistics radius Show RADIUS statistics | Pipe through a command

erv@j20-98-0> show services sgw statistics Ue: Number of attached UEs: 0 Number of ECM connected UEs: 0

Session: Number of PDN connections: 0

Gtp: s11 Create Session Request Received: 16588 s11 Create Session Response Accept Sent: 12648 s11 Create Session Response Reject Sent: 541 s11 Modify Bearer Request Received: 12648 s11 Modify Bearer Response Accept Sent: 11413 s11 Modify Bearer Response Reject Sent: 211 s11 Delete Session Request Received: 0 s11 Delete Session Response Accept Sent: 0 s11 Delete Session Response Reject Sent: 0 s11 Delete Bearer Request Sent: 0 s11 Delete Bearer Response Accept Received: 0 s11 Delete Bearer Response Reject Received: 0 s11 Downlink Data Notification Sent: 0 s11 Downlink Data Notification Acknowledge Received: 0 s11 Downlink Data Notification Indication Received: 0 s11 Release Access Bearers Request Received: 0 s11 Release Access Bearers Response Accept Sent: 0 s11 Release Access Bearers Response Reject Sent: 0 s11 Echo Request Received: 0 s11 Echo Response Accept Sent: 0 s11 Echo Response Reject Sent: 0 s11 Echo Response Accept Received: 800 s11 Echo Response Reject Received: 0 s11 Echo Request Sent: 816 s11 Update Bearer Request Sent: 0 s11 Update Bearer Accept Received: 0 s11 Update Bearer Reject Received: 0 s11 Create Indirect Data Forwarding Tunnel Request Received: 0 s11 Create Indirect Data Forwarding Tunnel Response Accept Sent: 0 s11 Create Indirect Data Forwarding Tunnel Response Reject Sent: 0


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GGSN-MPG useful CLI

3. bete@EEGGSN-RE1> show services ggsn status

Interface: gc-1/2/0 External address: 10.170.38.65 Internal address: 10.0.0.34 Function: Node Controller Hardware version: 1.11.0.0 , Software version: 5.1.20.4 CPU0 utilization: 6 percent DRAM: 268435456, Used: 76062720 PDP service: Ready, Assigned PDP contexts: 298, PDP capacity: 600000 PDP services start time: Wed Dec 24 14:26:37 2008 (646543 microsecond)

Interface: gc-2/2/0 External address: 10.170.38.66 Internal address: 10.0.0.50 Function: Session Controller Hardware version: 1.11.0.0 , Software version: 5.1.20.4 CPU0 utilization: 0 percent DRAM: 268435456, Used: 80998400 PDP service: Ready, Assigned PDP contexts: 298, PDP capacity: 150000 Weighted PDP context load in control: 298 Maximum filter depth per user 0, Mean: 0 PDP services start time: Wed Dec 24 14:26:37 2008 (624006 microsecond)


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GGSN-MPG useful CLIInterface: gu-2/0/0 External address: 10.170.38.81 Internal address: 10.0.0.48 Function: Packet Forwarder Hardware version: 1.12.0.0 , Software version: 128.8.1.22 CPU0 utilization: 3 percent DRAM: 268435456, Used: 65445864 PDP service: Ready, Assigned PDP contexts: 96, PDP capacity: 150000 Weighted PDP context load in payload: 96 PDP services start time: Wed Dec 24 14:25:34 2008 (789714 microsecond)

Interface: gu-3/0/0 External address: 10.170.38.82 Internal address: 10.0.0.64 Function: Packet Forwarder Hardware version: 1.12.0.0 , Software version: 128.8.1.22 CPU0 utilization: 39 percent DRAM: 268435456, Used: 65453144 PDP service: Ready, Assigned PDP contexts: 99, PDP capacity: 150000 Weighted PDP context load in payload: 99 PDP services start time: Wed Dec 24 14:25:37 2008 (166476 microsecond)


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GGSN-MPG useful CLIInterface: gu-3/1/0 External address: 10.170.38.83 Internal address: 10.0.0.65 Function: Packet Forwarder Hardware version: 1.13.0.0 , Software version: 128.8.1.22 CPU0 utilization: 7 percent DRAM: 268435456, Used: 65458760 PDP service: Ready, Assigned PDP contexts: 103, PDP capacity: 150000 Weighted PDP context load in payload: 103 PDP services start time: Wed Dec 24 14:25:37 2008 (839310 microsecond)

4. bete@EEGGSN-RE1> configure exclusive warning: uncommitted changes will be discarded on exitEntering configuration mode

[edit]


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GGSN-MPG useful CLI5. bete@EEGGSN-RE1# rollback ?Possible completions: <[Enter]> Execute this command 0 2009-01-08 14:09:13 CST by bete via cli 1 2001-11-03 03:41:41 CST by bete via cli commit synchronize 2 2001-11-03 03:41:36 CST by bete via cli 3 2001-11-03 03:39:52 CST by bete via cli …….

6. bete@EEGGSN-RE1# load ? Possible completions: factory-default Override existing configuration with factory default merge Merge contents with existing configuration override Override existing configuration patch Load patch file into configuration replace Replace configuration data set Execute set of commands on existing configuration update Update existing configuration[edit]


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GGSN-MPG useful CLI7. bete@EEGGSN-RE1> show chassis routing-engine

Routing Engine status: Slot 1: Current state Master Election priority Backup (default) Temperature 27 degrees C / 80 degrees F CPU temperature 23 degrees C / 73 degrees F DRAM 2048 MB Memory utilization 15 percent CPU utilization: User 0 percent Background 0 percent Kernel 0 percent Interrupt 0 percent Idle 99 percent Model RE-3.0 Serial ID P12040701873 Start time 2008-12-24 14:21:32 CST Uptime 15 days, 23 hours, 20 minutes, 58 seconds Load averages: 1 minute 5 minute 15 minute 0.00 0.00 0.00

8. bete@EEGGSN-RE1> request routing-engine login re1


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GGSN-MPG useful CLI

9. bete@EEGGSN-RE1> show route

inet.0: 21 destinations, 21 routes (20 active, 0 holddown, 1 hidden)

+ = Active Route, - = Last Active, * = Both

0.0.0.0/0 *[Static/5] 2w1d 23:50:39

> to 10.170.40.1 via fe-1/3/0.0

10.0.0.0/16 *[Static/5] 2w1d 23:50:39

> to 10.170.40.101 via fe-1/3/0.0

10.170.38.73/32 *[Static/1] 2w1d 23:49:25

> via gc-1/2/0.0

10.170.38.74/32 *[Static/1] 2w1d 23:49:25

> via gc-2/2/0.0

……


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GGSN-MPG useful CLI__juniper_private1__.inet.0: 8 destinations, 8 routes (8 active, 0 holddown, 0 hidden)+ = Active Route, - = Last Active, * = Both

10.0.0.0/8 *[Direct/0] 2w1d 23:52:41 > via fxp1.010.0.0.1/32 *[Local/0] 2w1d 23:50:41 Local……

Gn.inet.0: 14 destinations, 14 routes (14 active, 0 holddown, 0 hidden)+ = Active Route, - = Last Active, * = Both

0.0.0.0/0 *[Static/5] 2w1d 23:50:39 > to 10.170.38.51 via ge-1/1/0.010.0.100.0/30 *[OSPF/10] 2w1d 23:50:17, metric 2 > to 10.170.38.51 via ge-1/1/0.010.170.38.0/27 *[OSPF/150] 2w1d 23:45:05, metric 2, tag 0 > to 10.170.38.49 via ge-1/1/0.010.170.38.48/28 *[Direct/0] 2w1d 23:50:39 > via ge-1/1/0.010.170.38.50/32 *[Local/0] 2w1d 23:50:41 Local via ge-1/1/0.010.170.38.65/32 *[Static/1] 2w1d 23:49:25 > via gc-1/2/0.010.170.38.66/32 *[Static/1] 2w1d 23:49:25 > via gc-2/2/0.0 ……


(32 pt makes 2 rows









GGSN-MPG useful CLIGi.inet.0: 67 destinations, 68 routes (67 active, 0 holddown, 0 hidden)+ = Active Route, - = Last Active, * = Both

0.0.0.0/0 *[Static/5] 2w1d 23:50:40 > to 10.170.39.14 via ge-3/2/0.010.0.0.248/32 *[OSPF/10] 2w1d 23:50:35, metric 1 > to 10.170.39.8 via ge-3/2/0.010.0.101.0/30 *[OSPF/10] 2w1d 23:50:35, metric 2 > to 10.170.39.13 via ge-3/2/0.010.1.230.0/29 *[Static/1] 00:58:35 > via gu-3/1/0.010.1.230.8/29 *[Static/1] 00:41:16 > via gu-3/1/0.0……__juniper_private1__.inet6.0: 6 destinations, 11 routes (6 active, 0 holddown, 0 hidden)+ = Active Route, - = Last Active, * = Both

fe80::/64 *[Direct/0] 2w1d 23:50:37 > via gu-3/1/0.0……


(32 pt makes 2 rows









GGSN-MPG tracing

1. Tracing single subscriberbete@EEGGSN-RE1> request services ggsn trace start ?Possible completions: imsi Start tracing International Mobile Subscriber Identity msisdn Start tracing Mobile Station Integrated Services Digital Networkbete@EEGGSN-RE1> request services ggsn trace stop ? Possible completions: all Stop all tracing imsi Stop tracing International Mobile Subscriber Identity msisdn Stop tracing Mobile Station Integrated Services Digital Network

bete@EEGGSN-RE1> start shell % tail -F /var/log/messages


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GGSN-MPG tracing

2. Open traceoption for GGSN/PGWservices {

ggsn {……

traceoptions { debug-level 7; flag gtp;

} }

}



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GGSN-MPG tracing3. Open traceoption for SGW

erv@j20-98-0> show configuration services sgw node j20-98;diagnostics { trace sscd.Gtllnfo; trace gtpd.GtlDebug; trace dsmd.GtlDebug3;}……}



(32 pt makes 2 rows









GGSN/CPG configuration example

› Configuration file example

cpg.cfgGGSNR5_conf.txt

GGSN Overview

Documents

Transcript of GGSN Overview