GGSN Monitoring & First Layer Handling

GGSN Monitoring & First Layer Handling December 9th, 2013

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by Doddy W., PSNOS Dept., CNO Div.

Preface

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GGSN is the core network node of GPRS system

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GGSN functions: –

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Assign IP address to subscriber Perform AAA, maintain connection to SGSN, generate charging, etc

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GGSN Hardware

Ericsson SSR 8020

Huawei UGW9811 PGP-X16 Ericsson M320

Ericsson M120

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?

GGSN APN Mapping

Hostname

Page  4

Hardware

Location

GGSNTBS1

Ericsson M120

TB Simatupang, Jakarta

GGSNTBS3

Ericsson M320


GGSNTBS4

Ericsson M320


GGSNTBS5

Ericsson SSR8020


GGSNBRN1

Ericsson M120

Buaran, Jakarta

GGSNBRN2

Ericsson M320

Buaran, Jakarta

GGSNBRN3

Ericsson M320

Buaran, Jakarta

GGSNBRN4

Ericsson SSR8020

Buaran, Jakarta

GGSNPKB1

Ericsson M320

Arifin Ahmad, Pekanbaru

GGSNSBY1

Huawei PGP-X16

Gayungan, Surabaya

GGSN Coverage

Hostname

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APN Handling

Coverage

GGSNTBS1

- Internet / telkomsel, mms - internet.r / telkomsel.r , blackberry.net.r, mms.r (roaming) - corporate APN

West & Central Java, Kalimantan, East Java, Balinusra, Sulawesi

GGSNTBS3

internet/telkomsel, blackberry.net, mms


GGSNTBS4

internet/telkomsel, blackberry.net


GGSNTBS5

blackberry.net, internet/telkomsel (trial)

West & Central Java, Kalimantan

GGSNBRN1

- Internet / telkomsel, mms - internet.r / telkomsel.r , blackberry.net.r, mms.r (roaming) - corporate APN


GGSNBRN2

internet/telkomsel, blackberry.net, mms


GGSNBRN3



GGSNBRN4

blackberry.net, internet/telkomsel (trial)

West & Central Java, Kalimantan

GGSNPKB1


Sumatera

GGSNSBY1

blackberry net

East Java Balinusra Sulawesi

GGSN Interface (1 of 2)

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Gn

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Gi

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Ga

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Gx

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Gy

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Gp

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Gmb

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LIG

Gx Ga

GGSN Gn

Gi

Gp

LIG Gy

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Gmb

GGSN Interface (2 of 2)

Gn network

Gi network

Internet

SGSN

Gn Network

Gn

Blackberry Server

GGSN

Corporate Network SGSN

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Service Topology – APN internet/telkomsel

Spam DNS Gi Filter SGSN

gate-router

F5 Load Balancer

Gn Network GGSN SGSN

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F5 Load Balancer

SASN

Internet

gate-router Proxy

Service Topology – APN blackberry.net

SGSN Blackberry network

grx-router

VPN Links via TELIN/AICENT


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grx-router

Blackberry server

Service Topology – APN mms

SGSN

F5 Load Balancer


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MMS Proxy

MMSC

Service Topology – Roaming APN

Roaming Partner network

GPRS Roaming Exchange network

Telkomsel network

SGSN

/ t . r r n e e l . r t e m s n i i l k o G t e

grx-router via AICENT/TELIN

GRX Network

Gn Network

Gi blackberry.net.r

via AICENT/TELIN

GGSN grx-router SGSN

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G i m m s . r

GGSN Monitoring (1 of 3)

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Tools: –

Eniq

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Cacti

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http://10.251.15.85/cacti/

Parameters to be monitored: –

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APN level •

Active PDP number

•

Available IP pool

•

Uplink & downlink bytes/packets

•

PDP activation attempt

Node level •

Gn, Gi throughput

•

Routing Engine CPU utilization & temperature

•

GTP-U & GTP-C CPU utilization & memory usage

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 APN

Page  14

level


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Node level

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First Layer Handling – Daily Checklist (1 of 4)

@GGTBS1-re1> show system uptime Current time: 2013-12-08 21:51:58 WIT System booted: 2013-12-05 23:45:34 WIT (2d 22:06 ago) Protocols started: 2013-12-06 00:01:42 WIT (2d 21:50 ago) Last configured: 2013-12-06 20:57:01 WIT (2d 00:54 ago) by bennypn 9:51PM up 2 days, 22:06, 1 user, load averages: 0.50, 0.42, 0.42

@GGTBS1-re1> show system commit 0 2013-12-06 20:57:01 WIT by bennypn via cli commit synchronize 1 2013-12-06 20:43:16 WIT by bennypn via cli commit synchronize 2 2013-12-06 00:32:52 WIT by ericsson via cli commit synchronize

@GGTBS1-re1> show chassis environment Class Item Status Temp PEM 0 OK PEM 1 OK Routing Engine 0 OK Routing Engine 0 CPU OK Routing Engine 1 OK Routing Engine 1 CPU OK

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Pengecekan uptime

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Pengecekan perubahan konfigurasi terakhir

Measurement

43 44 42 45

degrees degrees degrees degrees

C C C C

/ / / /

109 111 107 113

degrees degrees degrees degrees

F F F F

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Pengecekan temperature


@GGTBS1-re1> show chassis routing-engine Routing Engine status: Slot 1: Current state Master Election priority Backup Temperature 42 degrees C / 107 degrees F CPU temperature 45 degrees C / 113 degrees F DRAM 3584 MB Memory utilization 20 percent CPU utilization: User 11 percent Background 0 percent Kernel 9 percent Interrupt 2 percent Idle 78 percent Model RE-A-2000 Serial ID 9009050302 Start time 2013-12-05 23:45:34 WIT Uptime 2 days, 22 hours, 8 minutes, 20 seconds Last reboot reason Router rebooted after a normal shutdown. Load averages: 1 minute 5 minute 15 minute 0.23 0.36 0.40

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Pengecekan routing engine


@GGTBS1-re1> show ospf neighbor instance Gn_vrf Address Interface State 221.132.243.113 xe-0/0/0.32 Full 221.132.243.121 xe-1/0/0.33 Full

ID 221.132.254.65 221.132.254.73

Pri 1 1

Dead 37 30

@GGTBS1-re1> show ospf neighbor instance Gi_? Gi_blackberry.r Gi_inetcorporate Gi_inetspec Gi_mms Gi_telkomsel Gi_telkomsel.r Gi_test Gi_tsel @GGTBS1-re1> show ospf neighbor instance Gi_telkomsel Address Interface State ID 192.168.0.10 xe-0/0/0.101 Full 192.168.200.101 192.168.0.11 xe-0/0/0.101 Full 192.168.200.102 192.168.0.26 xe-1/0/0.102 Full 192.168.200.101 192.168.0.27 xe-1/0/0.102 Full 192.168.200.102

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Pri 0 0 0 0

Dead 37 33 31 34

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Pengecekan routing OSPF Gn network

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Pengecekan routing OSPF Gi network


@GGTBS1-re1> show log messages | last 5 Dec 8 22:07:29 2013 GGTBS1-re1 (FPC Slot 5, PIC Slot 0) gc50 gtpcd[257]:gc-5/0/0: : <04>: pdp_RadiusRecvAcctRespRadius failure: status=RADIUS_SERVERDOWN, sending gtp failure cause=204 imsi=510100342629156, msisdn=6285203629156, nsapi=5, apn=telkomsel, idx=0, s2a_wlan=N, type=21, ip=182.12.227.114, ip_dual=-, sgsn_ip_c=221.132.235.21, sgsn_ip_u=221.132.235.21, teid_data=153047, pdp_id=aaaaaaaaa2641030 STATE:[SSM = 'CREATE', S = 'PDP_ST_RADIUS_START'], first occurrence at 22:07 Dec 8 22:07:29 2013 GGTBS1-re1 (FPC Slot 4, PIC Slot 0) gc40 gtpcd[253]:gc-4/0/0: : <00>: pdp_DeletePdpRsp: delete rsp from 221.132.233.99 for PDP ID aaaaaaaa80542270 was REJECTED (v1Cause=192), first occurrence at 22:07 @GGTBS1-re1> show log chassisd | last 5 Dec 6 00:32:49 ch_fru_power_sequencer FEB 3 step Dec 6 00:32:49 ch_fru_power_sequencer FEB 4 step Dec 6 00:32:49 ch_fru_power_sequencer FEB 5 step Dec 6 00:32:49 ... power sequencer finished ... Dec 6 00:32:49 CHASSISD_PARSE_COMPLETE: Using new

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0 0 0 configuration

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Pengecekan log

First Layer Handling – Service Checklist @GGTBS1-re1> show services epg pgw statistics apn telkomsel APN: telkomsel Active PDP contexts: 445128 With traffic class conversational: 0 With traffic class streaming: 0 With traffic class interactive: 444573 With traffic class background: 555 Active EPS bearers: 0 Active dedicated EPS bearers: 0 Active EPS bearers for WLAN: 0 Active IPv6 PDP contexts: 0 Active IPv4v6 PDP contexts: 0 Active IPv6 EPS bearers: 0 Active IPv4v6 EPS bearers: 0 Attempted PDP activations: 65203433, Completed: 64740019 --lines skipped--

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Radius statistics: Failed RADIUS Authentication procedures: 0 Failed RADIUS Accounting procedures: 689757 RADIUS accounting servers: Server IP address: 192.168.0.14 Accounting requests sent: 129384101 Accounting responses received: 128694343 Accounting requests timed out: 689757 Accounting requests retransmitted: 0 Invalid authenticators received: 1

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Pengecekan statistik per APN

First Layer Handling – Service Checklist

@GGTBS1-re1> show services epg pgw statistics imsi 510101772143945 International mobile subscriber identity: 510101772143945 Mobile station ISDN number: 6282217143945 NSAPI/Bearer ID: 5 APN: telkomsel PDP address: 182.12.174.62 Framed Route: 0.0.0.0/ 0 Charging ID: 3779425136 Gi/SGi DiffServ class: AF22, Gn/S5 DiffServ class: AF22 Maximum Bit Rate Downlink (kbps): 8640 Maximum Bit Rate Uplink (kbps): 5760 GTP-C version: 1 Session activation timestamp: Sun Dec 8 22:13:36 2013 Total session duration: 0h 0m 23s Idle time: 0h 0m 1s Packets uplink: 166 Packets downlink: 149 Bytes uplink: 37948 Bytes downlink: 61210 Serving Node: Serving Node Type: SGSN Control plane IP address: 221.132.227.35 Data plane IP address: 221.132.227.35 Page  21

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Pengecekan statistik user

Escalation Process

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1st level - Packet Switch Network Operation Support (PSNOS) team –

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Moch SN Tsalasanto (Soleh), moch_sn_tsalasanto@telkomsel.co.id, 08111987745 Doddy Widanto, doddy_widanto@telkomsel.co.id, 08119935594

Alex Atmana, alex_atmana@telkomsel.co.id, 08119953112

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Benny P Nugraha, benny_p_nugraha@telkomsel.co.id, 08119783464

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Dwi SG Utomo, dwi_sg_utomo@telkomsel.co.id, 0811276002

2nd level - Senior Engineer Packet Switch Operation Expert Job Coordinator –

Eko Prasetyo, eko_prasetyo@telkomsel.co.id, 0811939961

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Question

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GGSN Monitoring & First Layer Handling

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