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Sigtran Workshop
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Alcatel-Lucent A5060 SigTranAlcatel-Lucent A5060 SigTran
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2 Introduction to Si Tran
Agenda
S"TRA$ "ntroduction
S%TP
&'!A
AL! A5060 Sigtran Solution
S"TRA$ (P"s
S"TRA$ Alar)s * +vents
S"TRA$ "A$ST"%
Trou.leshooting / * A
&onitoring in Live $etor1 T&3
Re4erences
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3 Introduction to Si Tran
What is SIGTRAN ?
SIGTRANSIGTRANis a set o4 rotocols de4ined to transort SS7 )essages over "P
netor1s SIGTRANSIGTRANallos "P netor1s to inter-or1 ith Sitched %ircuit $etor1
S%$3
&% &edia atea %ontroller
%all %ontrol .eteen S and & %ontrolling Access "P PST$3
S Signalling atea
"nter4ace "P8SS7 netor1s
Passing signalling )essages to84ro) "P $odes
& &edia atea Pac1eti9ation o4 voice tra44ic
Rate adatation
Trans)itting tra44ic toards the destination
SIGTRAN
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4 Introduction to Si Tran
S"TRA$ Stac1
ALCATEL-LUCENT Solution
SIGTRANis composed of thee elements!Adatation laer, i:e: &2PA, &2!A, &'!A, etc
Strea) %ontrol Trans)ission Protocol S%TP3
Standard "P stac1
SCTP(RFC 2960)
M2PA(RFC4165)
M2UA(RFC 3331)
M3UA(RFC 4666)
MTP3
SCCP
SUA(RFC 3868)
IUA(RFC 3057)
TCAP Q.931
MAP/CAP/IN
IP
ISUP / BICC / TUP
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A.out Adatation Laers
"#UA"#UA$ &TP2 !ser Adatation laer: &TP2-&TP' co))unication is
re)ote and are &2!A )essages: The are non-ri)itivessentover "P: S is not an SS7 node as there is no &TP' ;R
IUAIUA - "S$ !ser Adatation laer suorts the transort o4 "S$signaling directl .eteen S-&% over "P ;R
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i44erences .eteen &2!A and &2PA
A! "#UA! "T'"T&% (re)ote) communication isdefined as "#UA messages and sent o*e theI& connection+
"#&A! I&S& pocesses "T'"T&% pimiti*es+
,! "#UA! SG-"GC connection is not an SS lin.+It is an e/tension of "T& to a emote entit0+
"#&A! SG-I&S& connection is an SS lin.+
C! "#UA! SG is not an SS node and has no pointcode+
"#&A! SG is an SS node 1ith a point code+
2! "#UA! SG does not ha*e uppe SS la0essince it has no "T&%+
"#&A! SG can ha*e uppe SS la0es3 e+g+3SCC&+
E! "#UA! uses "#UA management pocedues+
"#&A! elies on "T&% fo managementpocedues+
"#UA
"
#&A
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7 Introduction to Si Tran
h &'!A is chosen 4or )o.ile alications B
"#UA is not suita4le
designed 4or &TP2 .ac1hauling invocation o4 re)ote &TP2 laer3
no 4ull "P eer to eer )ode, onl "P-SS7 legac interor1ing
eCa)le D rela o4 legac SS7 associated signalling ter)inated at a &
toard a &% through "P
SUA is not suita4le una.le to transort "S!P * E"%% signaling S%%P onl3
IUA is not suita4le
una.le to transort "S!P * E"%% signaling "S$ onl3
"#&A could ha*e 4een suita4le
onl eer to eer )ode, a legac SS7 lin1 is relaced . an FSS7 "P
lin1G an S%TP association3
&TP' )anage)ent is 1et unchanged
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SCTPSCTPStream Control Transmission ProtocolStream Control Transmission Protocol
RFC2960RFC2960
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"oti*ation $ Wh0 SCT&3 4ut not TC&?
The &o4lem 1ith TC&!The &o4lem 1ith TC&!
T%P is .te-strea)ed: "t rovides a singlestrea) o4 data and guarantees
that data to .e delivered in .te-seHuence order
T%P is sensitive to delayscaused . netor1 errors loss o4 .tes, )essages
or seHuence violation3
"n case error occurs, T%P ill hold u deliver o4 allsu.seHuent data
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The Solution
Sessions
5ault coection
5lo1 ContolCongestion Contol
Relia4le
Connection-less
Unelia4le
"essage-4ased
5aming
U2&
5agmentation
Ne1 Concepts"ulti-homing
"ulti-steaming
Coo.ie and ,undling
TC&
SCT&
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11 Introduction to Si Tran
S%TP
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6e0 SCT& 5eatues!
&essage oriented rather than .te oriented
Suort multi-streamcaa.ilit, i:e: trans)it data through )ultilestrea)s, each ith indeendent seHuenced deliver: The nu).er o4
inco)ing and outgoing strea)s is negotiated hen association is
esta.lished
Suort multi-homing, i:e: each S%TP endoint )a .e 1non .
)ultile "P addresses: "4 one route .eco)es unavaila.le, another ill.e used:
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13 Introduction to Si Tran
S%TPD &ulti-Strea)
To deliver "S!P )essages there is a need to decoule )essages .ased onthe calls such as %"%3 so that )essages associated ith di44erent callscan .e delivered indeendentl
With multi-stream
alls 2 ! all 3 are
"rocessed normall#$
Call 1
Call 2
Call 3
Call 2
Call 3
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S%TPD &ulti-Strea)
An SCT& pac.et ma0 4e composed of multiple chun.s (contains SS
messages) 1hich 4elong to multiple steams Chun.s ae 7ueued if necessa0 and then deli*eed to SCT& Use &at in
se7uence pe steam
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&ulti-ho)ing
+ndoint Association is co)osed evenl o4 several aths
nl one ath is active at a given ti)e
Paths are )onitored to detect 4ailures via eCchanging FIeart.eatG
Active Path
inactive Path
Data & Acks
Heartbeats / Acks
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S%TP (e Ter)s
Chun.A unit of information within an SCTP packet, consisting o4 a chun1 header and chun1-seci4ic content "nit, Ac1, ata,J3:
SCT& &ac.etThe unit o4 data deliver across the inter4ace .eteen S%TP and the connectionless ac1et netor1 e:g:, "P3: An S%TP
ac1et includes i3 common SCTP header, ii3 ossi.le SCTP control chunks, and iii3 user dataencasulated ithin S%TPATA chun1s:
Tansmission Se7uence Num4es (TSN)A '2-.it seHuence nu).er used internall . S%TP: One TSN is attached to each chunkcontaining user data to er)it thereceiving S%TP endoint to ac1noledge its receit and detect dulicate deliveries:
Signalling Endpoint (SE&)The logical sender8receiver o4 S%TP ac1ets: n a )ulti-ho)ed host, an S%TP endoint is reresented to its eers as a
co).ination o4 a set o4 eligi.le destination transort addresses to hich S%TP ac1ets can .e sent and a set o4 eligi.lesource transort addresses 4ro) hich S%TP ac1ets can .e received: All transort addresses used . an S%TP endoint
)ust use the same port numer, .ut can use multiple !P addresses: A transort address used . an S%TP endoint )ustnot.e used . another S%TP endoint: "n other ords, a transport address is uni"ue to an SCTP endpoint:
Association
A rotocol relationshi .eteen S%TP endoints, co)osed o4 the i3 two SCTP endpointsand ii3protocol stateinformationincluding Keri4ication Tags and the currentl active set o4 Trans)ission SeHuence $u).ers TS$s3, etc: Anassociation can .e uniHuel identi4ied . the transort addresses used . the endoints in the association: To S%TPendoints &!ST NOThave )ore than one S%TP association .eteen the) at an given ti)e:
SteamA uni-directional lo#ical channelesta.lished 4ro) one to another associated S%TP endoint, ithin hich all user)essages are delivered in seHuence eCcet 4or those su.)itted to the unordered deliver service
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17 Introduction to Si Tran
"llustration o4 S%TP Association Path and Strea)
IPIP
AssociationPath
Port
Primary Path
IP Address
Transport Address
SCTPSCTP
IPIP
SCTP USERSCTP USER
SCTPSCTP
SCTP USERSCTP USER
SCTP End PointSCTP End Point
Stream in each path
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1% Introduction to Si Tran
"llustration o4 S%TP Strea)s, Pac1ets and %hun1s
SS7 NetworkSS7 Network
ElementElement
SCTPLayer
IP Layer
User Adaption Layer
SS7 NetworkSS7 Network
ElementElement
SCTPLayer
IP Layer
User Adaption Layer
Uses
User Data
Rx Stream_j
Tx Stream_1Tx Stream_k
Rx Stream_1
SCTP AssociationSCTP Association
SCTPSCTP
end pointend point
SCTPSCTP
end pointend point
Message 1 Message 2
DATA chunks
IP header
SCTP common header
SCTP control chunks
DATA chunk header
SCTP
acket
IP datagram
!2" 12 !
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S%TP Pac1et
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S%TP %hun1
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Selective Ac1noledge)ent SA%(3
+ver chun1 in a ac1et sent out . S%TP )ust .e ac1noledged
"4 ac1noledge chun1 is not received AP is detected3, retrans)issiono4 the chun1 is er4or)ed
Ac1noledg)ents can .e cu)ulated and sent out ithin one SA%( )essage
&ultile APs can .e reorted in one SA%( )essage
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23 Introduction to Si Tran
%riteria o4 retrans)ission
SCTP Common header12
SAC9 chunk
IP header2"
SCTP acket
Retrans)ission occurs hen
Ti)eout
SA%( contains TS$ a
SA6 ! Selecti*e Ac.no1ledgement
Chun.! A unit of info in an SCT& pac.et
(2) (2)
(4) (5)
The actual value is
the offset to the next
received chunk
The offset to the endof received block
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$%&'$%&'$TP%(&ser 'daptation )a*er$TP%(&ser 'daptation )a*er
RFC+666RFC+666
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hat is &'!A and hat is notB
What is "%UA?
&'!A stands 4or &TP' !ser Adatation Laer and is de4ined in RFC4666 &'!A rovides transort o4 &TP'-!ser signaling, e:g:, "S!P, T!P and S%%P
)essages, over "P using S%TP:
&'!A rotocol can .e used .eteen S and &% or .eteen to &%s:
&'!A rovides a eHuivalent set o4 ri)itives at its uer laers as
rovided . &TP' to its local users:
What is "%UA not?
&'!A is not an &TP' over "P: &'!A does notrovide so)e o4 the services
in &TP':
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26 Introduction to Si Tran
&'!A Protocol Architecture
NI5NI5
$"< is the inter4ace .eteen &TP'and &'!A: "t rovides sea)less
)aing .eteen &TP' and &'!A on
Signalling atea: "t er4or)s
rotocol ter)ination, translation
and user art rotocol
encasulations:
SE& - SS Signalling Endpoint
ST& - SS Signalling Tansfe &oint
SG - Signalling Gate1a0
"GC $ "edia Gate1a0 Contolle
NI5 - Nodal Inte-1o.ing 5unction
&T'3
&T'2
&T'1
T('
S'
I
S
)
'
&T'3
&T'2
&T'1
M3UA
ST'
I'
*I+
ST'
I'
T('
S'
I
S
)
'
I' *et,orSS7 *et,or
SEP STP - SGTekelec Eale MGCA!"2"
"ain functions of NI5!"ain functions of NI5!
"nteror1ing o4 )essages
.eteen SS7 and "P netor1s
Rela "P or SS7 )essages .ac1 to
the originator in the sa)e4or)at
Provide glo.al netor1
)anage)ent services in suort
o4 data 4los .eteen &TP' and
&'!A laers
M3UA
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SS
I&
&'!A $etor1 +ntities
SE& - SS Signalling Endpoint
ST& - SS Signalling Tansfe &oint
SG - Signalling Gate1a0
AS $ Application Se*e
I&S $ I& Se*e
IW5 - Inte1o.ing 5unction NI5
A=9>9
ASI&S
I&S
EAGLE
ST&SE&
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2% Introduction to Si Tran
&'!A Ter)s
Application Se*e (AS)!Application Se*e (AS)!
AS is a logical entit, such as virtual sitch ordata.ase ele)ent caa.le o4 handling callrocessing 8 transaction 4or a seci4ic routing 1e
AS is identi4ied . a routing 1e, hich is a set o4SS7 ara)eters, such as S"8P%8P%8SS$:
AS is )odelled as one or )ore Alication ServerProcesses ASP3, Signalling atea Process SP3or "P Server Process "PSP3
AS&:
AS
AS
Signalling Gate1a0 (SG)!Signalling Gate1a0 (SG)!
S is a signalling agent caa.le o4 sending 8receiving Sitched %ircuit $etor1 S%$3 native
)essages at the edge o4 the SS7 8 "P netor1s:
S contains one or )ore Signalling atea Process
SP3 roviding serves as an active, .ac1u, load-
sharing or .roadcast rocess
SG
SG&:
SG
I&
I&S&:
I&S
ASAS
I&S&:
I&S
I&
SS I&
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Signalling &ee &ocesses
Application Se*e &ocess (AS&)!Application Se*e &ocess (AS&)!
A rocess instance o4 an Alication Server, such as &%, "P S%P, or "P ILR:
An Alication Server Process serves as an active or .ac1u rocess o4 an
Alication Server
An ASP contains an S%TP endoint and )a .e con4igured to rocess
signalling tra44ic 4or )ore than one Alication Servers:
I& Se*e &ocess (I&S&)!I& Se*e &ocess (I&S&)! A rocess instance o4 an "P-.ased alication: An "PSP is essentiall the
sa)e as an ASP, eCcet that it uses &'!A in a oint-to-oint 4ashion:
%oncetuall, an "PSP does not use inter4ace ith3 the services o4 a
Signalling atea node:
Signalling Gate1a0 &ocess (SG&)!Signalling Gate1a0 &ocess (SG&)! An Alication Process instance running on S: "t is identi4ied . a uniHue
S%TP endoint:
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"llustration o4 AS, ASP, SP, Routing (e and Routing %onteCt
RC Routing Context. A value that uniuel! identifies a Routing "e!to re#resent A##lication $erver (A$).
ASP 1ASP 1 SGP 1SGP 1
SGP nSGP n
AS:
#$%tin e' (1"#$%tin e' a1
#$%tin e' (1"#$%tin e' a2
#$%tin e' (1"#$%tin e' an
RC:
NGN N2ENGN N2E
ASP nASP n
Te.elec Signaling Gate1a0Te.elec Signaling Gate1a0
IPnet:orks
1
2
SS&net:orks
SCTPendo$nt
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31 Introduction to Si Tran
&'!A SS78"P $etor1 Architecture
IPdoma$n
SS&dom
a$n
NOTES:
AS1 is processing MAPprotocol for the point code A in
SS7 network 1
n x ASP serve AS1 in a load
sharing !anner
Signaling "atewa# S"1 gives
access to SS7 network 1 $ % Signaling "atewa# S"& gives
access to SS7 network 1 $ &
'ro! SS7 network 1( S"1 $
S"& are seen as STPs
ASPs load share traffic
)etween S"s and )etween
S"Ps in S"1 and S"&
IP nodeIP node
M*UAM*UA
SG2SG2SG1SG1
AS 1AS 1
ASP 1ASP 1 ASP nASP n
SGP 1SGP 1 SGP nSGP n SGP 1SGP 1 SGP nSGP n
SS&net:ork 1
SCTPendo$nt
SCTPassoc$at$on
SCTPSCTP
IPIP
SS&net:ork
2
SS&net:ork
*
IP net:orks
;oad%shar$ng
;oad%shar$ng
;oad%shar$ng
;oad%shar$ng
A
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32 Introduction to Si Tran
&'!A )odes
%ackhauling &ode
"nternall & and &% share the sa)e Signalling
Point %ode SP%3
&'!A is used to trans4er &TP' ri)itives .eteen
S and &%:
The lin1 .eteen S-&S% is not an SS7 lin1
&'!A is transarent to &TP' !ser laers, such as
"S!P8E"%%8S%%P:
SS& net:ork
SPCSPC
SGSG
MGCMGC
SPCSPC
SPCSPC
MGC MGC
SS&net:ork
PC< =PC< =
PC< >PC< >
$T' ode
ro& $$* net+ork, $- is seen as an $T'
- and -C have different $$* 'ointCodes.
$- functions as an $T', but not exactl!
$- is reuired to #erfor& 'oint Code
Translation/
&ipeFRouteF
0 1'C 3 1'C
0 'C 'C3
PC< ?PC< ?
PC< ?PC< ?
'C 1'C 6ATA
'C 6 1'C ATA
SG
5'C26
1'C23
5ATA
5
'C23
1'C26
5ATA
I&I&
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33 Introduction to Si Tran
AS-S-S+P &odel AS8S &odel3
MTP1MTP1
MTP2MTP2
MTP3MTP3
SCCP
TCAP
MAP
MTP1MTP1
MTP2MTP2
MTP3MTP3
)P
SCTP
M3UA
)nter*$rkin +ct
)P
SCTP
M3UA
SCCP
TCAP
MAP
IPSS7
A$
$-
$7'
IP nodeIP node
SGSG
SGSG
IP nodeIP node
IP nodeIP node
SEPSEP
SEPSEP
SEPSEP
IPdoma$n
SS&legac/
STPSTP
STPSTP
Non standard$@edM*UA SG%SG
commun$cat$on orlegac/ SS& l$nks
Non standard$@edM*UA SG%SG
commun$cat$on orlegac/ SS& l$nks
This model allo1s an I& node todialog 1ith legac0 SS nodethough the inte-1o.ing of asignaling gate1a0
AS ! Application Se*eSE&! Signaling End &oint
SG ! Signaling Gate1a0
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"PS-"PS &odel
)P
SCTP
M3UA
)P
SCTP
M3UA
SCCP
TCAP
MAP
IP
0'$
SCCP
TCAP
MAP
0'$
IP nodeIP node
IP nodeIP node
IP nodeIP node
IPdoma$n
This )odel allos to .uild a 4ull SS7o"P netor1 using &'!A$o eCtra-ho S is needed .eteen the "P nodes less
overhead3
"t leads to a netor1 ith a 4lat organi9ation and has the 4olloingconseHuences 4or large netor1s D
All $etor1 +le)ents that have to dialog each other have to .e inter-connected through a )esh o4 S%TP association
The nu).er o4 S%TP associations increases ith the nu).er o4 $+ inthe netor1, i4 S%TP )ulti-ho)ing is used to rovide netor1 ath
resilience, S%TP heart.eat tra44ic 4los on inactive aths alsoincreases, thus de)anding )ore netor1 .andidth and %P! oer
eending on the $+s architecture8i)le)entation, signaling
caacit eCtension o4 one $+ can lead to con4iguration i)acts on allother $+s it is connected to
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35 Introduction to Si Tran
&'!A Protocol
"%UA
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36 Introduction to Si Tran
&'!A rotocol
Single AS& in an Application Se*e
No Registation $ RC is po*isioned
SG&SG& AS&:AS&:
AS& U&
AS& U& AC6
NT5 (AS-ACTI8E) (RCn)
AS& ACTI8E AC6 (RCn)
AS& ACTI8E (RCn)
NT5 (AS-INACTI8E) (RCn)
SG&SG& AS&:AS&:
AS& U&
AS& U& AC6
NT5 (AS-ACTI8E) (RCn)
AS& ACTI8E AC6 (RCn)
Registe Re7 (LRCn3 R6n)
Registe RES& (LRCn3 R6n)
Single AS& in Application Se*e
20namic Registation $ Client sends RC and R6 to se*e
8RC 8ocal Routing "e! 0
RC Routing Context
R" Routing "e!
NT5 (AS-INACTI8E) (RCn)
AS& ACTI8E (RCn)
NT5 not sent
if I&S&-I&S&
Read0 to ecei*eAS& Sate "gt "sg
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37 Introduction to Si Tran
Si#TranSi#Tran'lcatel()ucent ',060 Solution'lcatel()ucent ',060 Solution
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3% Introduction to Si Tran
S"TRA$ Solution 4or Atriu) A5060 %S
"ntroduction o4 S"TRA$ on a ual Rac1 Atriu) %S
Sigtran Tra44ic &igration &Ps
+na.ling Sigtran n ual Rac1 Sste) 'IP700=7=26?RMNNA3
Tra44ic &igration
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39 Introduction to Si Tran
A5060 S"TRA$ Iardare8So4tare Architecture ual Rac13
$CT'
0'
AC
%-72 %-79
T'2
T':
4 7:;T: (T A 9>A 9>A
$0 $0
GE - Giga4it EthenetSCC5 - Se*ice Specific Coodination 5unctionSSC& - Se*ice Specific Connection iented &otocol"AC - "edia Access Contol addess
4 7:;T: (T
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40 Introduction to Si Tran
A=9>9 SIGTRAN AT'9 or T'9b
aughter Card @ 9
aughter Card @ 2
aughter Card @ :
T'2
T':
$$C;$$C1'
AA85;AT
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Si#TranSi#Tran'lcatel()ucent ',060 Solution'lcatel()ucent ',060 Solution
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42 Introduction to Si Tran
ALU A=9>9 SIGTRAN Solution - Configuation
SCT& End &oints
&S&
"%UA AS
"%UA Route
SIGTRAN Configuation SCT& End &oint
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43 Introduction to Si Tran
SIGTRAN $ Configuation $ SCT& End &oint
SI" Node I2
SCT& &ot
&ima0 LocalAddess Seconda0 Local
Addess
Use of SCT&End &oint
SCT&Identifie
S G C f % S
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44 Introduction to Si Tran
SIGTRAN $ Configuation $ "%UA &S&
SIGTRAN $ Configuation $ "%UA AS (Local)
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SIGTRAN Configuation "%UA AS (Local)
SIGTRAN $ Configuation $ "%UA AS (Remote)
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SIGTRAN Configuation "%UA AS (Remote)
SIGTRAN $ Configuation $ "%UA Route (Local)
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47 Introduction to Si Tran
SIGTRAN Configuation "%UA Route (Local)
SIGTRAN $ Configuation $ "%UA Route (Remote)
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4% Introduction to Si Tran
SIGTRAN $ Configuation $ "%UA Route (Remote)
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Si#TranSi#Tran'lcatel()ucent ',060 Solution'lcatel()ucent ',060 Solution
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50 Introduction to Si Tran
T" Net1o. Standad Configuation
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51 Introduction to Si Tran
T" Net1o. Standad Configuation
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52 Introduction to Si Tran
T" Net1o. Standad Configuation
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53 Introduction to Si Tran
T" Net1o. Standad Configuation
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54 Introduction to Si Tran
T" Net1o. Standad Configuation $ "%UA &S&s
&S& Id Cad:
=,2,',? '5
5,6,7,@ '6
T#6 S0stem!-
The Standard Sigtran %on4iguration shouldhave @ "%UA &S&s: %hec1 that there are onl@ entiesin Sg1"%ua&S&Configta.leSS7%on4iguration E3:
Keri4 that the 4olloing standard
con4iguration -
2ual Rac. S0stem!-
The Standard Sigtran %on4iguration shouldhave @ "%UA &S&s: %hec1 that there are onl@ entiesin Sg1"%ua&S&Configta.leSS7%on4iguration E3:
Keri4 the 4olloing standard con4iguration -
&S& Id Cad:
=,2 '
',? ?
5,6 5
7,@ 6
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55 Introduction to Si Tran
T" Net1o. Standad Configuation $ "%UA AS
T#6 S0stem o 2ual Rac. S0stem (Afte Taffic "igation) !-
Local AS
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56 Introduction to Si Tran
T" Net1o. Standad Configuation $ "%UA Route
T#6 S0stem o 2ual Rac. S0stem (Afte Taffic "igation) !-
Local Route
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57 Introduction to Si Tran
Si#TranSi#Tran'lcatel()ucent ',060 Solution'lcatel()ucent ',060 Solution
SIGTRAN 6&Is $ SCT&
SIGTRAN 6&Is $ "%UA
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5% Introduction to Si Tran
STARTT"&+STA&P
STPT"&+STA&P
SS$+$!&
AT+A$
S%TP"$"TT $o o4 S%TP - "$"T )essages trans)itted
S%TP"$"TR $o o4 S%TP - "$"T )essages received
S%TP"$"TA%(T $o o4 S%TP - "$"T-A%( )essages trans)itted
S%TP"$"TA%(R $o o4 S%TP - "$"T-A%( )essages received
S%TPSI!T$T $o o4 S%TP SI!T$ )essages trans)itted
S%TPSI!T$R $o o4 S%TP SI!T$ )essages received
S%TPATAT $o o4 S%TP ATA )essages trans)itted S%TPATAR $o o4 S%TP ATA )essages received
S%TP%TT $o o4 %T+TS trans)itted
S%TP%TR $o o4 %T+TS received
SIGTRAN 6&Is - SCT&
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59 Introduction to Si Tran
SIGTRAN 6&Is - SCT&SCT&INITT/ ' R/ ! No of SCT& INIT Chun.s Tansmitted H Recei*ed
SCT&INITAC6T/ ' R/ ! No of SCT& INITAc. Chun.s Tansmitted H Recei*ed
SCT&S
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60 Introduction to Si Tran
SIGTRAN 6&Is - SCT&
C
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( )
$tatistics
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$tatistics
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63 Introduction to Si Tran
SIGTRAN 6&Is SCT& (6enel Stats)
$tatistics
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S G N s SC ( e el Stats)
$tatistics
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Si#TranSi#Tran'lcatel()ucent ',060 Solution'lcatel()ucent ',060 Solution
SIGTRAN 6&Is $ SCT&
SIGTRAN 6&Is $ "%UA
SIGTRAN 6&Is $ "%UA
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SS"%UA&S&&ER5!
STARTT"&+STA&P ate and ti)e er4or)ance interval started:
STPT"&+STA&Pate and ti)e er4or)ance interval stoed:
SS$+$!& SS $ode S"& %ard3 to hich this record alies
AT+A$ atea ill alas have a value o4 U=
PSP" Peer Server Process ":
S%TSAP" !ser SAP " !SAP id3
&'!AASS%%$T $u).er o4 PSP congestion )essages trans)itted:
&'!AASS%%$R $u).er o4 PSP congestion )essages received:
&'!AASS%TPT $u).er o4 trans4er rohi.ited )essages trans)itted:
&'!AASS%TPR $u).er o4 trans4er rohi.ited )essages received:
&'!AASS%TRT $u).er o4 trans4er restrict )essages trans)itted:
&'!AASS%TRR $u).er o4 trans4er restricted )essages received:
&'!AASS%TRAT $u).er o4 trans4er alloed )essages trans)itted:
&'!AASS%TRAR $u).er o4 trans4er alloed )essages received:
&'!AASS%T%T $u).er o4 trans4er controlled )essages trans)itted:
&'!AASS%T%R $u).er o4 trans4er controlled )essages received:
ASP!P&ST $u).er o4 ASP !P )essages sent
ASP!P&SR $u).er o4 ASP !P )essages received
ASP!PA%(&ST $u).er o4 ASP !P A%( )essages sent
ASP!PA%(&SR $u).er o4 ASP !P A%( )essages received
ASP$&ST $u).er o4 ASP $ )essages sent
ASP$&SR $u).er o4 ASP $ )essages received
ASP$A%(&ST $u).er o4 ASP $ A%( )essages sent
ASP$A%(&SR $u).er o4 ASP $ A%( )essages received
ASPA%&ST $u).er o4 ASP A%T"K+ )essages sent
ASPA%&SR $u).er o4 ASP A%T"K+ )essages received
ASPA%A%(&ST $u).er o4 ASP A%T"K+ A%( )essages sent
ASPA%A%(&SR $u).er o4 ASP A%T"K+ A%( )essages received
SIGTRAN 6&Is $ "%UA
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Ta.le SPAT"AL:SS&'!APSPP+R
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6% Introduction to Si Tran
"%UAASSCCNGT! No+ of "%UA ASSCIATIN CNGESTIN Tansmitted+
2esciption! This eg count rovides details o4 %$+ST"$ .eing reorted . the seci4ied PSP:
Repoted ,0 ! S"&8& $ode Running Sg&t' rocess ith &aster &'!A:
"%UAASSCCNGR! No+ of "%UA ASSCIATIN CNGESTIN Recei*ed+
2esciption! This eg count rovides details o4 %$+ST"$ .eing reorted . re)ote STP-Snode: The %$+ST"$ is reorted . &'!A &essage Te Q S%$ ith non-9ero value 4or
congestion level:
Repoted ,0 !S"&8& $ode Running Sg&t' rocess ith &aster &'!A:
"%UAASSCT&T ! No+ of Taffic &ohi4ited "essages Tansmitted+
2esciption ! This eg count rovides no: o4 !$A 2estination UNAvaila.le3 trans)itted . %S:2UNA message is used 40 SG& to declae Una*aila4ilit0 of a gi*en 2estination+5o T"configuation (AS& $ SG&)3 WCS 1ill not tansmit 2UNA messages+
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69 Introduction to Si Tran
"%UAASSCTRT ! No+ of Taffic Resticted "essages Tansmitted
2esciption ! This eg count rovides no: o4 RST 2estination ReSTricted3 )essages trans)itted. %S: 2RST message is used 40 SG& node to declae esticted taffic to1ads an0 gi*endestination+ 5o T" configuation (AS& $ SG&)3 WCS does not tansmit 2RST messages+
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AS&U&"SGT ! Num4e of AS& U& messages sent
2esciption !This eg count indicates no: o4 ASP!P )essages trans)itted 4or the seci4iedAssociation PSP3 4ro) %S to re)ote STP-S node: The ASP!P )essage is used during activation
rocedure 4or each Association PSP3:Repoted ,0 !S"&8& $ode Running Sg&t' rocess ith &aster &'!A:
AS&U&"SGR ! Num4e of AS& U& messages ecei*ed
2esciption ! This eg count indicates no: o4 ASP!P )essages received 4or the seci4ied AssociationPSP3 4ro) STP-S node to %S: ASP!P )essages is used during activation rocedure 4or each
Association PSP3:
Repoted ,0 !S"&8& $ode Running Sg&t' rocess ith &aster &'!A:
AS&U&AC6"SGT ! Num4e of AS& U& AC6 messages sent
2esciption !This eg count indicates no: o4 ASP!P-A%( )essages trans)itted 4or the seci4iedAssociation PSP3 4ro) %S to STP-S node: The ASP!P-Ac1 )essage is used during activation
rocedure 4or each Association PSP3:
Repoted ,0 !S"&8& $ode Running Sg&t' rocess ith &aster &'!A:
AS&U&AC6"SGR ! Num4e of AS& U& AC6 messages ecei*ed
2esciption !This eg count indicates no: o4 ASP!P-A%( )essages received 4or the seci4iedAssociation PSP3 4ro) STP-S node to %S: The ASP!P-A%( )essage is used during activation
rocedure 4or each Association PSP3:
Repoted ,0 !S"&8& $ode Running Sg&t' rocess ith &aster &'!A:
SIGTRAN 6&Is $ "%UA
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71 Introduction to Si Tran
AS&2N"SGT ! Num4e of AS& 2WN messages sent
2esciption !This eg count indicates no: o4 ASP $ )essages trans)itted 4or the seci4iedAssociation PSP3 4ro) %S to STP-S node: The ASP $ )essage is used hile Association PSP3
is going don:Repoted ,0 !S"&8& $ode Running Sg&t' rocess ith &aster &'!A:
AS&2N"SGR ! Num4e of AS& 2WN messages ecei*ed
2esciption !This eg count indicates no: o4 ASP $ )essages received 4or the seci4iedAssociation PSP3 4ro) STP-S node to %S: The ASP $ )essage is used hile Association PSP3
is going don:
Repoted ,0 !S"&8& $ode Running Sg&t' rocess ith &aster &'!A:
AS&2NAC6"SGT ! Num4e of AS& 2WN AC6 messages sent
2esciption !This eg count indicates no: o4 ASP$-A%( )essages trans)itted 4or the seci4iedAssociation PSP3 4ro) %S to STP-S node: The ASP$-A%( )essage is used hile Association
PSP3 is going don:
Repoted ,0 !S"&8& $ode Running Sg&t' rocess ith &aster &'!A:
AS&2NAC6"SGR ! Num4e of AS& 2WN AC6 messages ecei*ed
2esciption !This eg count indicates no: o4 ASP$-A%( )essages received 4or the seci4iedAssociation PSP3 4ro) STP-S node to %S: The ASP$-A%( )essage is used hile Association
PSP3 is going don:
Repoted ,0 !S"&8& $ode Running Sg&t' rocess ith &aster &'!A:
SIGTRAN 6&Is $ "%UA
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72 Introduction to Si Tran
AS&AC"SGT ! Num4e of AS& ACTI8E messages sent
2esciption !This eg count indicates no: o4 ASP A%T"K+ )essages trans)itted 4or the seci4iedAssociation PSP3 4ro) %S to STP-S node: The ASP A%T"K+ )essage is used to indicate the re)ote
eer &'!A that the seci4ied Association PSP3 is read to handle tra44ic:Repoted ,0 !S"&8& $ode Running Sg&t' rocess ith &aster &'!A:
AS&AC"SGR ! Num4e of AS& ACTI8E messages ecei*ed
2esciption !This eg count indicates no: o4 ASP A%T"K+ )essages received 4or the seci4iedAssociation PSP3 4ro) STP-S node to %S: The ASP A%T"K+ )essage is used to indicate the re)ote
eer &'!A that the seci4ied Association PSP3 is read to handle tra44ic:
Repoted ,0 !S"&8& $ode Running Sg&t' rocess ith &aster &'!A:
AS&ACAC6"SGT ! Num4e of AS& ACTI8E AC6 messages sent
2esciption !This eg count indicates no: o4 ASPA%T"K+-A%( )essages trans)itted 4or the seci4iedAssociation PSP3 4ro) %S to STP-S node: The ASPA%T"K+-A%( )essage is used to ac1noledge
ASP A%T"K+ )essage received 4ro) re)ote &'!A eer:
Repoted ,0 !S"&8& $ode Running Sg&t' rocess ith &aster &'!A:
AS&ACAC6"SGR ! Num4e of AS& ACTI8E AC6 messages ecei*ed
2esciption !This eg count indicates no: o4 ASPA%T"K+-A%( )essages received 4or the seci4iedAssociation PSP3 4ro) STP-S node to %S: The ASPA%T"K+-A%( )essage is used to ac1noledge
ASP A%T"K+ )essage received 4ro) re)ote &'!A eer:
Repoted ,0 !S"&8& $ode Running Sg&t' rocess ith &aster &'!A:
SIGTRAN 6&Is $ "%UA
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73 Introduction to Si Tran
AS&INAC"SGT ! Num4e of AS& INACTI8E messages sent
2esciption !This eg count indicates no: o4 ASP "$A%T"K+ )essages trans)itted 4or the seci4iedAssociation PSP3 4ro) %S to STP-S node: The ASP "$A%T"K+ )essage is used to indicate the
re)ote eer &'!A that the seci4ied Association PSP3 is unavaila.le to handle tra44ic:Repoted ,0 !S"&8& $ode Running Sg&t' rocess ith &aster &'!A:
AS&INAC"SGR ! Num4e of AS& INACTI8E messages ecei*ed
2esciption !This eg count indicates no: o4 ASP "$A%T"K+ )essages received 4or the seci4iedAssociation PSP3 4ro) %S to STP-S node: The ASP A%T"K+ )essage is used to indicate the re)ote
eer &'!A that the seci4ied Association PSP3 is read to handle tra44ic:
Repoted ,0 !S"&8& $ode Running Sg&t' rocess ith &aster &'!A:
AS&INACAC6"SGT ! Num4e of AS& INACTI8E AC6 messages sent
2esciption !This eg count indicates no: o4 ASP "$A%T"K+ A%( )essages trans)itted 4or theseci4ied Association PSP3 4ro) %S to STP-S node: The ASP "$A%T"K+ A%( )essage is used to
ac1noledge an ASP "$A%T"K+ )essage received 4ro) a re)ote &'!A eer:
Repoted ,0 !S"&8& $ode Running Sg&t' rocess ith &aster &'!A:
AS&INACAC6"SGR ! Num4e of AS& INACTI8E AC6 messages ecei*ed
2esciption !This eg count indicates no: o4 ASP A%T"K+ )essages trans)itted 4or the seci4iedAssociation PSP3 4ro) %S to STP-S node: The ASP "$A%T"K+ A%( )essage is used to ac1noledge
an ASP "$A%T"K+ )essage received 4ro) a re)ote &'!A eer:
Repoted ,0 !S"&8& $ode Running Sg&t' rocess ith &aster &'!A:
SIGTRAN 6&Is $ "%UA
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"%UAASSCUNA8 ! Num4e of times Association 1as una*aila4le
2esciption !This eg count indicates no: o4 ti)es the seci4ied Association PSP3 .eca)e
unavaila.le during the reorting interval:
Repoted ,0 !S"&8& $ode Running Sg&t' rocess ith &aster &'!A:
"%UAASSCUNA82UR ! 2uation of Association una*aila4ilit0 (in seconds)
2esciption !This eg count indicates duration in seconds3 the seci4ied Association PSP3 asunavaila.le:
Repoted ,0 !S"&8& $ode Running Sg&t' rocess ith &aster &'!A:
"%UAASSC,TET ! ,0te count of &2U(s) sent on the association
2esciption !This eg count indicates total no: o4 .tes trans)itted on the seci4ied AssociationPSP3 4ro) %S:
Repoted ,0 !+ach S"&8& $ode Running Sg&t' rocess:
"%UAASSC,TER ! ,0te count of &2U(s) ecei*ed on the association2esciption !This eg count indicates total no: o4 .tes received on the seci4ied Association PSP3. %S:
Repoted ,0 !+ach S"&8& $ode Running Sg&t' rocess:
SIGTRAN 6&Is $ "%UA
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75 Introduction to Si Tran
"%UAASSC&2UT ! Num4e of &2U(s) sent on the association
2esciption !This eg count indicates no: o4 &'!A P!s &essage Te - ATA3 trans)itted on the
seci4ied Association PSP3 4ro) %S:
Repoted ,0 !S"&8& $ode Running Sg&t' rocess ith &aster &'!A:
"%UAASSC&2UR ! Num4e of &2U(s) ecei*ed on the association
2esciption !This eg count indicates no: o4 &'!A P!s &essage Te ATA3 received on theseci4ied Association PSP3 . %S:
Repoted ,0 !S"&8& $ode Running Sg&t' rocess ith &aster &'!A:
"%UAASSCCNGN,R ! Num4e of association congestion occuence
2esciption !This eg count indicates no: o4 ti)es congestion haened on the seci4iedAssociation PSP3:
Repoted ,0 !S"&8& $ode Running Sg&t' rocess ith &aster &'!A:
"%UAASSCCNG2UR ! 2uation of association congestion (in seconds)2esciption !This eg count indicates duration o4 congestion haened on the seci4ied AssociationPSP3:
Repoted ,0 !S"&8& $ode Running Sg&t' rocess ith &aster &'!A:
SIGTRAN 6&Is $ "%UA
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C
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Si#TranSi#Tran'lcatel()ucent ',060 Solution'lcatel()ucent ',060 Solution
SIGTRAN Alams H E*ents - SCT&
SIGTRAN Alams H E*ents $ "%UA
SIGTRAN Alams ' E*ents
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7% Introduction to Si Tran
SIGTRAN Alams ' E*ents
Microsoft E!cel(orksheet
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Si#TranSi#Tran'lcatel()ucent ',060 Solution'lcatel()ucent ',060 Solution
2IAGNSTIC
2IAGNSTIC
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%0 Introduction to Si Tran
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%1 Introduction to Si Tran
(T#6) "%UA &S& Info W s"d W su"d W sAssoc"d W assocSt W asSt W inhi.ited W n).ActPs W n).RegPs W cong/ W congActive W n).Ps W as)Te W retr%ount W outStrea)s W
W = W 0 W 0 W A%T"K+ W A%T"K+ W
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%2 Introduction to Si Tran
(2ual Rac.) "%UA &S& Info W s"d W su"d W sAssoc"d W assocSt W asSt W inhi.ited W n).ActPs W n).RegPs W cong/ W congActive W n).Ps W as)Te W retr%ount W outStrea)s W
W = W 0 W 0 W A%T"K+ W A%T"K+ W
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%3 Introduction to Si Tran
&'!A PS "n4o
W s"d W n1"d W state W s)c W congLevel W end&sgs W
W = W 6 W A%T"K+ W ='@@2'2' W 0 W 0 W
W 2 W 6 W A%T"K+ W =2?'?620 W 0 W 0 W
W ' W 6 W A%T"K+ W 657202 W 0 W 0 W
here
state is the current oerational state o4 &'!A PS and corresonding &'!A Route:
The valid values are - F!$($$GX F$GX F"$A%T"K+GX FA%T"K+GX FP+$"$G
spmc is the &'!A Route deci)al value o4 P%3 associated ith &'!A PS:
congLe*el is the current congestion level reorted . STP-S 4or the &'!A Route
pend"sgs is no: o4 &'!A ATA )essages currentl ending to .e delivered:
!nder nor)al conditions, this count should .e U0:
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%4 Introduction to Si Tran
Si#TranSi#Tran'lcatel()ucent ',060 Solution'lcatel()ucent ',060 Solution
Tou4leshooting
(no "ssues
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%5 Introduction to Si Tran
(no "ssues
S"&T"D A4ter S"& $ode Restart, the Associations " $T Recover:
Coesponding Eo LogsD ct 2? ='D=5D22 K&SS@6=si)=?= ssLogD ;" ='262? local0:de.ug>
='D=5D22:'25 S"&00? SgSct"3 ::8%)Ssrv"nt:c@703 +RRR - Stac1+rrorDentD ='6 instD 000 roc idD 007 4ileD ::8s.accetor:c lineD 26' errcodeD00000 errclsD +RR%LS+E! errvalD 005=5 errdescD s.accetthrD Peel o444ailed
RESLUTIND Loc1 8 !nloc1 Associations
(no "ssues
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%6 Introduction to Si Tran
(no "ssues
S"&T"D A4ter S"& $ode Restart, the Associations " $T Recover:
Coesponding Eo LogsD ec == ==D06D0' Sust@sa)=5= ssLogD ;" =2'6 local0:de.ug>
==D06D0':502 S"&02' SgSct"3 ::8%)Ssrv"nt:c@7=3 +RRR - Stac1+rrorDentD ='6 instD 000 roc idD 00@ 4ileD ::8s.osi4:c lineD 277 errcodeD 00000errclsD +RR%LS+E! errvalD 00000 errdescD S."net%onnectD%onnect
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%7 Introduction to Si Tran
(no "ssues
S"&T"D A4ter S"& $ode Restart, the Associations " $T Recover: %S$ot Resonding to Association "nitiali9ation 4ro) re)ote node STP-S3:
Trou.leshooting S%TP Association
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%% Introduction to Si Tran
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%9 Introduction to Si Tran
N8"SS9JsimJ:J%9J: SI"9%=!K snoop -d 4ge# sctp
!sing device 8dev8.ge2 ro)iscuous )ode3
=0:=62:=@':' -V =0:=77:'?:26 S%TP Q205 SQ205 "$"T=0:=62:=@':' -V =0:=77:'?:26 S%TP Q205 SQ205 "$"T
=0:=62:=@':' -V =0:=77:'?:26 S%TP Q205 SQ205 "$"T
=0:=62:=@':' -V =0:=77:'5:26 S%TP Q205 SQ205 "$"T
"s
"$"T"$"T-A%(
(B
A
+ngage T& tea) to investigate
I Association "nitiali9ation "S $T (B
netstat $a gep ESTA,LIS
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90 Introduction to Si Tran
Re4erences
httD88r4c:net8r4c2=0:ht)lD
Strea) %ontrol Trans)ission Protocol, cto.er 2000 httD88r4c:net8r4c'''=:ht)lD
Signaling Sste) 7 SS73 &essage Trans4er Part 2 &TP23 - !ser AdatationLaer , Sete).er 2002
httD88r4c:net8r4c?666:ht)lD
Signaling Sste) 7 SS73 &essage Trans4er Part ' &TP'3 - !ser AdatationLaer &'!A3, Sete).er 2006
http://rfc.net/rfc2190.htmlhttp://rfc.net/rfc3331.htmlhttp://rfc.net/rfc4666.htmlhttp://rfc.net/rfc4666.htmlhttp://rfc.net/rfc3331.htmlhttp://rfc.net/rfc2190.html7/18/2019 Sigtran Workshop
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Than1 ou Z:alcatel-lucent:co)
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