Packet Core Network Audit Introd Int roduc ucti tion on: Audit and assessment customer current PaCo network and interfaces and Review of network constraints, of core network in high-level. It will help in improving user experience, reuirement and customer ARP!.
Why Audit is required: "ith the evolution of smart phones and other data ena#led mo#ile devices, data usage is growing phenomenall$. Also, with operators preferring multi-vendor capa#ilities, it #ecomes imperative to audit the packet switching core core network to complete the end to end picture. %his provides provides the complete complete anal$sis #$ #$ correlation correlation of P&, '&, '&, C&, (perational (perational ) *ignaling *ignaling %races. %races.
Main Target areas: All Packet Core +odes, connecting interfaces, network capcit$ and esign are the target areas like :
PaCo Nodes : **+, *+ and C' Interface : *C # **+ R+C Iu Ps **+ **+ n *+ **+ a C' **+ r /0R **+ f 1IR *+ a C' *+ i P+ *+ $ (C* *+ x PCR'
Optimied Network capacity: %he node and network capacit$ can #e get e2ected with uses of interface, Control and user messages, Polices, Rules, Rating group and some other internal ) external factor. Provide practical and cost-e2ective advice to management on designing, implementing and enhancing internal controls in the areas of technolog$ in the customer network .
O!"ecti#e and $cope •
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%he purpose of this audit was to ensure that the Packet Core +odes and tra3c path are in /igh Availa#ilit$ mode, the 4PI will give clear vison of network accurac$. %his will help to update the network topolog$, dimensioning parameter which improved network availa#ilit$ , network ualit$. Provide assurance during s$stem implementations5 upgrade of network elements that will #e incorporated within network elements to mitigate the risks. Provide practical and cost-e2ective advice to management on designing, implementing and enhancing network in the areas of technolog$. Improve user experience that will re6ect in R(I and ARP!.
Input %equirement • • • • • • • • •
**+ and *+ Performance reporting 7le in reada#le format. **+ and *+ 4PI Reports. +ode and Card level utili8ation report. +ode 0evel health checks reports. IP Pool and AP+ level utili8ation report. %op Alarm report. !R0 performance reports. *tatistical and anal$tical reports 0icense !tili8ation
Approacha!i&ity The objective of this audit was to update the info of the network design and dimensioning. I will also improve the user experience will also impact proportionally to the revenue part.
a' Audit (&ow Chart:
!'Mandatory )PI that fa&&s under impro#ement i'
ATTAC* $+CC,$$ %AT,
%his 4PI descri#es the ratio of the num#er of successfull$ performed attach procedures to the num#er of attempted attach procedures for Packet Core network and is used to evaluate service availa#ilit$ network performance.
Attach $ucCess %ate @?; @>; @=; @<; ; A-is Tit&e
?; >; =; <; 9; efore Audit
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After Audit
P.P $+CC,$$ %AT,
%his 4PI descri#es the ratio of the num#er of successfull$ performed PP creation procedures #$ *+ to the num#er of attempted PP creation procedures #$ *+ and is used to evaluate service availa#ilit$ and network performance. @?; @>; @=; @<; ; ?; >; =; <; 9; efore Audit
After Audit
MO/I0IT1 )PI 2*AN.O3,% $+CC,$$ %AT,' %his 4PI descri#es the ratio of the num#er of successfull$ performed outgoing handover procedures to the num#er of attempted outgoing handover procedures to evaluate inter RA% outgoing handover performance. 4$M +MT$ or +MT$ 4$M
@?; @>; @=; @<; ; ?; >; =; <; 9; efore Audit
After Audit
TOO0$ %,5+I%,. a # c d e f
1nd to 1nd P* Core Audit %oolB(P%I( i 0A+ (ptimi8ation %ool5Pro#e. Performance reporting monitoring tool. 1xcel !ltra 1dit *nagit 1ditor
A+.IT T1P,$ Network Architecture and .esign Audit: This audit will help to sustain a competitive network design In this part will anal$8e the network topolog$, how nodes are connected to di2erent interfaces internal and external interfaces. %his will also lower the %C( and (pex cost. %his will also utili8e the legac$ resources and improve the architecture design with #ack up of CR51R5IP 0ogs details with P0&+ wise. %his will help to optimi8e the network criticalit$ and mitigate the risk that cause #$ internal and external cause.
CAPACIT1 A+.IT •
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a$ #$ da$ the penetration of smart phone is rapidl$ increases this result high exposure signaling load on the PaCo nodes and the connecting interfaces. %his results in greater s$stem capacit$ and performance with high ualit$ of experience. Information pertaining to various aspects of the CP! and memor$ utili8ation, disk space, and process status and its managed s$stems Bhardware, protocols, software su#s$stems, and su#scri#ers is collected in real time and is displa$ed in ta#ular format. &ultiple statistics can #e graphed simultaneousl$ for uick comparison of data. It also helps provide the highest transaction rates and session capacit$, the s$stem should #e designed to provide ro#ust hardware relia#ilit$ and service assurance features. Audit w.r.t the utili8ation at card level and node level corresponding with the memor$ ) CP! utili8ation and provide details to improve thatB1x. Packet *i8e5 $ changing the redundanc$ t$pes5 (ptimi8e unnecessar$ *ignaling 0oad.
)PI 6 $,%3IC, A+.IT •
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Audit the AP+ utili8ation w.r.t IP pool and if the utili8ation more than 9<; in #us$ hour then need improve the B1x +A%ing ratio5increasing IP pool5*ingle AP+. Audit for rules, in this we recommend to remove all unused and duplicate static rules from *+ that will help to improve PI accurac$ and !tili8ation. Audit for handover scenario #$ using test *I& = to and vice versa and check for an$ drop or loss in packet tracing the !1 while generating live tra3c Bex. DoIP5R%*P Audit the network and product 4PI on the current tra3c model and let conclude all the mandator$ 4PI are pu#lishing to evaluate the network performance. Audit for 4PI D* %ra3c anal$sis with the help of tool #$ using network PR' 7les and logs.
,7P,CT,. %,$+0T 0inear growth of CP! utili8ation w.r.t memor$ utili8ation. /igh availa#ilit$ #etween inter and intra nodes. /ighl$ optimi8e circle5centrali8ed network. Clean #illing process with data Reconciliation..
CA$, $T+.1 : $ implementing Audit response and suggestions will improve the user experience for data services that proportionall$ increase the tra3c volume and di2erential services.
