development of ipx: myth or reality?...acme packet page 4 the ipx vision confidential -ipx solution...
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Development of IPX: Myth or Reality?
Patrick M
eLampy -CTO/Founder Acme Packet
1Acme Pack
et
Acme Packet
Page
Agenda
•IPX –
Acme Packet Perspective
•IPX and LTE/VoLTE
2Acme Pack
et
IPX –A Vendor Perspective
3Beta footer test
Acme Packet
Page
4CONFIDENTIAL -IPX Solutio
n O
verview
Th
e I
PX
Vis
ion IP
XIPX
SLA
SLA
$$$$ SLA
SLA
IPX
MNO
MNO
IPX
$$ SLA
SLA
Acme Packet
Page
Un
ifie
d s
erv
ice
evo
lve
s
-a
ny d
evic
e,
an
y o
ne
, a
ny t
ime
Text
Data
Voice
Video
Presence + IM
5
Acme Packet
Page
“Se
rvic
e p
rovid
er”
cho
ice
s
wil
l in
cre
ase
6
Over the top
Enterprise
Service provider
AT&T
Acme Packet
Page
Clo
ud
se
rvic
es
wil
l d
om
ina
te
7
Most services are already in service provider clouds
–Mobile
–Residential
–IP Centrex
–SIP trunking
–Ove
r-the-top
IP PBX and UC servers will vanish from enterprise premise, except the largest,
communications -critical enterprises will build their own cloud
Right network plumbing will be critical -bandwidth & Q
oS, identify, privacy
Acme Packet
Page
Ne
two
rk t
ran
spo
rt c
ho
ice
s
incr
ea
se
Internet
8
Future (Federnet2.0)
OTT
SP
E
OTT
ESP
E
SP
SP
SP
AT&T
NSP SP
E
ESP
E
SP
IPX
SP
IPX (Federnet)
AT&T
Acme Packet
Page
Mo
bil
e a
cce
ss w
ill
do
min
ate
9
Acme Packet
Page
“IP
”–
ide
nti
ty a
nd
pri
va
cy
be
com
e c
riti
cal
10
Acme Packet
Page
A f
utu
re o
f in
cre
asi
ng
ch
oic
es
•U
nif
ied
se
rvic
e e
vo
lve
s –
an
y w
he
re,
an
y o
ne
, a
ny
tim
e
•“S
erv
ice
pro
vid
er”
cho
ice
s w
ill
incr
ea
se
•C
lou
d s
erv
ice
s w
ill
do
min
ate
•N
etw
ork
tra
nsp
ort
ch
oic
es
wil
l in
cre
ase
•M
ob
ile
acc
ess
wil
l d
om
ina
te
•“I
P”
–id
en
tity
an
d p
riv
acy
–b
eco
me
cri
tica
l
11
Acme Packet
Page
1.
In I
P,
we
tru
st n
o o
ne
2.
Ad
dre
sse
s a
nd
id
en
titi
es
wil
l fo
rev
er
be
he
tero
ge
ne
ou
s
3.
Co
mp
eti
tiv
e S
erv
ice
Off
eri
ng
s m
ay
in
vo
lve
oth
er
pro
toco
ls b
esi
de
s S
IP
4.
Co
de
csw
ill
ne
ve
r co
nv
erg
e t
o a
co
up
le -
au
dio
& v
ide
o
5.
Un
lim
ite
d b
an
dw
idth
, Q
oS
& s
ign
alin
g r
eso
urc
es
wil
l fo
rev
er
be
a m
yth
6.
So
me
se
ssio
ns
are
mo
re im
po
rta
nt/
va
lua
ble
7.
No
on
e w
ill b
e a
llo
we
d t
o d
o a
ny
thin
g t
he
y w
an
t
8.
IP r
eg
ula
tory
co
mp
lia
nce
re
qu
ire
me
nts
will
incr
ea
se
9.
Se
rvic
e p
rov
ide
r b
usi
ne
ss m
od
els
will
ne
ve
r b
e h
om
og
en
ou
s
Mo
re c
ho
ice
s re
qu
ire
s
mo
re m
ed
iati
on
an
d c
on
tro
l a
t b
ord
ers
12
Acme Packet
Page
13
CONFIDENTIAL -IPX Solutio
n O
verview
IPX
–A
Ne
w T
ran
spo
rt C
ho
ice
IPX
Ne
two
rk A
rch
ite
ctu
re
•IP
X n
etw
ork
arc
hit
ect
ure
is
a p
riv
ate
IP
ba
ckb
on
e n
etw
ork
wit
h
serv
ice
-aw
are
ele
me
nts
(IP
X P
roxy
)
–N
ot-
acc
ess
ible
by t
he
In
tern
et
–IP
ba
ckb
on
e n
etw
ork
is
the
cu
rre
nt
GR
X
•IP
X P
roxi
es
are
ke
y t
o s
up
po
rt m
ult
ila
tera
l/h
ub
co
nn
ect
ivit
y in
a s
cala
ble
an
d e
ffic
ien
t
ma
nn
er
•A
t th
e b
ord
er
be
twe
en
th
e s
erv
ice
pro
vid
er
the
re w
ill b
e a
bo
rde
r e
lem
en
t (S
BC
, so
ft-
MS
C,
or
SS
/MG
)
FNO
MNO/FNO
IPX carrier
IPX Proxy
IPX carrier
IPX Proxy
IPX carrier
IPX Proxy
IPX carrier
IPX Proxy
MNO
ISP
BE
BE
BE
BE
Acme Packet
Page
14
CONFIDENTIAL -IPX Solutio
n O
verview
Wh
y s
up
po
rt I
PX
•A
vo
id b
eco
min
g a
du
mb
pip
e w
ith
lo
w v
alu
e a
nd
lo
w m
arg
ins
•U
nli
ke
pu
bli
c In
tern
et,
IP
X p
rovid
es
inte
rco
nn
ect
ion
an
d t
ran
sit
serv
ice
s w
ith
ass
ure
d s
ecu
rity
an
d c
on
tro
lle
d Q
oS
•C
om
pe
llin
g v
alu
e p
rop
osi
tio
n:
–S
imp
lifi
ed
op
era
tio
ns
–C
om
mo
n c
ha
rgin
g p
rin
cip
le
–S
LAs
–M
ult
iple
co
nn
ect
ivit
y m
od
els
•IP
X c
arr
ier
can
pro
vid
e a
dd
itio
na
l se
rvic
es
be
yo
nd
tra
nsi
t
–T
ran
sco
din
g
–P
roto
col in
terw
ork
ing
–E
NU
M &
nu
mb
er
reso
luti
on
Acme Packet
Page
15
CONFIDENTIAL -IPX Solutio
n O
verview
Wh
y s
ho
uld
an
d M
NO
/FN
O u
se a
n I
PX
ca
rrie
r?
•A
ssu
re e
nd
-to
-en
d d
eli
ve
ry o
f V
oIP
an
d in
tera
ctiv
e I
P c
om
mu
nic
ati
on
s–
Pa
cke
t v
oic
e (
SIP
, S
IP-I
)
–R
CS
Se
rvic
es
•In
sta
nt
me
ssa
gin
g a
nd
pre
sen
ce
•V
ide
o s
ha
rin
g
•Im
ag
e s
ha
rin
g
•S
erv
ice
Hu
b m
od
e:
sim
pli
fie
d o
pe
rati
on
s–
Ca
sca
de
billi
ng
–C
on
tra
ct w
ith
fe
w I
PX
ca
rrie
rs i
nst
ea
d o
f 1
00
s o
f S
erv
ice
Pro
vid
ers
(M
NO
/FN
O)
•Lo
ng
dis
tan
ce a
nd
in
terc
on
ne
ctio
n w
ith
sm
all
pla
ye
rs
•IP
X s
erv
ice
s a
re s
tan
da
rdiz
ed
–C
om
mo
n c
ha
rgin
g p
rin
cip
le
–T
ech
nic
all
y i
nte
r-o
pe
rab
le e
nd
to
en
d
•A
gre
em
en
ts s
pe
cifi
ed
in
a C
on
tra
ct S
erv
ice
Sch
ed
ule
co
nta
inin
g–
SLA
s
–C
on
ne
ctiv
ity m
od
el
–O
pe
rato
r in
terc
on
ne
ctio
n l
ist
Acme Packet
Page
16
CONFIDENTIAL -IPX Solutio
n O
verview
Go
ing
be
yo
nd
vo
ice
: R
CS
an
d I
PX
(an
ima
ted
sli
de
)
PS
PS
CS
CS
CS
CS
PS
PS
CS-voice
SMS
CS-voice
SMS
IMS
IMS
IPX
Packe
tVoice
SIP
SIP (Video Share, MSRP, Prese
nce
HTTP (XCAP, SMTP)
BroadbandUser
BroadbandUser
IMMSRP X
DMS
IMMSRP X
DMS
SIP (Video Share, MSRP, Prese
nce)
HTTP (XCAP, SMTP)
TCP/UDP M
edia
SIP (Video Share, MSRP, Prese
nce)
HTTP (XCAP, SMTP)
TCP/UDP M
edia
SIP
(Packe
t Voice,
Video Share, SMS)
SIP
(Packe
t Voice,
Video Share, SMS)
MSC
Packe
tVoice
SIP/SIP-I
MAP
IP-SM-G
WIP-SM-G
W
MAP
MSC
SIP (Packe
t Voice)
Acme Packet
Page
17
CONFIDENTIAL -IPX Solutio
n O
verview
i3 F
oru
m’s
vis
ion
of
IPX
mo
de
l
•T
he
i3
Fo
rum
Ca
rrie
rs e
nd
ors
e t
he
ba
sic
IPX
co
nce
pts
aro
un
d h
avin
g a
re
lia
ble
, tr
ust
ed
, se
cure
an
d
qu
ali
ty c
on
tro
lle
d i
nte
rna
tio
na
l (v
oic
e)
serv
ice
•A
lso
th
e c
om
me
rcia
l re
qu
ire
me
nts
are
en
do
rse
d
•M
ore
pra
gm
ati
c a
nd
re
ali
stic
ap
pro
ach
in
ce
rta
in t
op
ics
–S
ecu
rity
to
be
pro
vid
ed
by
Bo
rde
r F
un
ctio
ns
(SB
Cs)
–Q
ua
lity
-of-
Se
rvic
e c
on
tro
l
–B
rea
k-i
n/b
rea
k-o
ut
SP A
SP B
Border
Functio
ns
Border
Functio
ns
CHF
Call Handling
Functio
ns
CHF
Call Handling
Functio
ns
SIP
RTP
IPX Domain
Non-IPX
TDM/IP
Carrier
Non-IPX
TDM/IP
Carrier
Acme Packet
Page
18
CONFIDENTIAL -IPX Solutio
n O
verview
Fu
ture
of
IPX
mo
de
l
•D
ire
ct c
on
ne
ctiv
ity t
o L
arg
e E
nte
rpri
ses
an
d P
riva
te F
ed
era
tio
ns
•D
ire
ct c
on
ne
ctiv
ity t
o O
TT
Se
rvic
e P
rovid
ers
•E
vo
luti
on
of
IPX
to
Se
rvic
e D
eli
ve
ry N
etw
ork
(S
DN
)
•La
rge
em
ph
asi
s o
n V
ide
o a
nd
OT
T S
erv
ice
s
SP A
SP B
Border
Functio
ns
Border
Functio
ns
CHF
Call Handling
Functio
ns
CHF
Call Handling
Functio
ns
SIP
RTP
IPX Domain
OTT
Service
Provider
Non-IPX
TDM/IP
Carrier
Private
Federation
Large
Enterprise
Acme Packet
Page
LTE data roaming
•A
ll d
ata
is
“ho
me
ro
ute
d”
–i.
e.
sen
t to
th
e h
om
e n
etw
ork
•S
6a
Dia
me
ter
inte
rfa
ce –
con
tro
l p
lan
e f
or
use
r in
form
ati
on
•S
8 i
nte
rfa
ce –
use
r p
lan
e f
or
da
ta
–G
TP
(G
en
eri
c T
un
ne
lin
g P
roto
col)
or
–P
MIP
(P
roxy
Mo
bil
e I
P)
–N
ot
ha
nd
led
by P
EC
Services
& apps
Core
transport
Access
Aggregation
PoP(EPC)
eUTRAN
eUTRAN
Packe
t data
DIAMETER
Home MSP In
ternet
S6a
S6a
IPX carrier
S8
19
=Diameter Policy Exchange Controller
Acme Packet
Page
Standards complia
nt
•RFC 3588 Diameter agent (relay or proxy)
•3GPP Diameter Routing Agent (D
RA)
•GSMA Diameter Edge Agent (D
EA)
IPX
EPC
IMS
LTE
EPC
IMS
LTE
Net-Net
Policy Exchange Controller
•Policy–authorization,
location, charging and
service profile inform
ation
using Diameter signaling
•Exchange–policy
inform
ation sent between
network elements or
across network boundaries
•Control–security,
interoperability, routing &
aggregation of Diameter
signaling m
essages
20
Acme Pack
et Confidentia
l
Acme Packet
Page
But in Reality –802.11 offload may be preferred
•8
02
.11
WIF
I/H
ots
po
ts
•H
om
e/B
usi
ne
ss/C
om
me
rcia
l/M
un
icip
al
Ne
two
rks
•D
HC
P U
niv
ers
al
•O
rth
og
on
al
Bil
lin
g/P
riva
cy/S
ecu
rity
Sch
em
es
•V
ery
Hig
h C
ap
aci
ty
Services
& apps
Core
transport
Access
Aggregation
eUTRAN
eUTRAN
Home MSP In
ternet
S6a
S6a
IPX carrier
S8
21
Internet
802.11
Hotspot
WIFI
Packe
t data
DHCP
Acme Packet
Page
Roaming for Services in IMS
•T
he
re a
re v
ari
ou
s a
pp
roa
che
s to
ro
am
ing
in
IM
S
–H
om
e r
ou
ted
wit
h d
ata
ba
ckh
au
l to
ho
me
ne
two
rk (
exi
stin
g d
ata
mo
de
l)
–D
istr
ibu
ted
po
licy
co
ntr
ol
wit
h p
oli
cy i
nte
rfa
ces
–V
isit
ed
P-C
SC
F w
ith
po
licy
co
ntr
ol
in v
isit
ed
ne
two
rk
–V
isit
ed
se
rvic
es
wit
h I
MS
co
re i
n v
isit
ed
ne
two
rk
•O
ne
Vo
ice
/ I
R.9
2 s
ele
cte
d V
isit
ed
P-C
SC
F m
od
el
–P
rovid
es
stro
ng
ba
lan
ce o
f vis
ite
d c
on
tro
l a
nd
ho
me
vis
ibil
ity/s
erv
ice
s
22
Acme Pack
et confidentia
l
Home
Network
Visited
Network
eUTRAN
Home Routed
eUTRAN
H-P
CR
F
V-P
CR
F
eUTRAN
PC
RF
eUTRAN
PC
RF
Distributed
Policy Control
Visited
P-CSCF
Visited
Services
22
PC
RF
Acme Packet
Page
Pragmatic pure IP connectivity may be
preferred
•S
erv
ice
s w
ill b
e b
ran
de
d a
nd
un
iqu
e
–D
eli
ve
red
ov
er
the
to
p o
f o
the
r IP
Acc
ess
Ne
two
rks
to e
nsu
re u
nif
orm
de
liv
ery
–U
niv
ers
al In
tero
pa
t th
e S
IP la
ye
r n
ot
po
ssib
le in
ne
ar
futu
re
•C
urr
en
t N
etw
ork
Op
era
tors
wil
l b
e O
TT
Re
ach
ab
le
–P
rov
ide
un
ive
rsa
l a
cce
ss t
o s
erv
ice
s
–R
eq
uir
em
en
t fo
r o
the
r d
ev
ice
s/n
etw
ork
s
•C
ha
rgin
g f
or
da
ta r
oa
min
g o
nly
•P
oss
ibly
se
pa
rate
HS
S f
or
Da
ta &
Se
rvic
es
•S
up
po
rts
Po
licy
& C
ha
rgin
g
23
Acme Pack
et confidentia
l
eUTRAN
eUTRAN
Home Data Center(s)
Internet
S6a
S8
H-P
CR
F
802.11
Hotspot
WIFI
Packe
t data
DIAMETER
IPX carrier
(optio
nal)
Acme Packet
Page
Data Center Approach to IMS
•Deploy Data Centers
–Create a Service Delivery Network
–Has Public Addresses
–Universally reachable
•All applications m
ust work everywhere
–Must work across all access networks
•Single-Sign O
n R
equired
–Phone & Service m
ust easily m
ove
between:
-Different LTE providers
-Different IP Access Networks (802.11 reachable)
–Avo
id Re-authentication
–Retains service context with no loss of service
–Support 3G Roaming (ATCF)
•EPC Role Redefined
–Only an Access Network
–No Service Infrastructure
–No Service participation
–Roaming is for Data O
nly
Backbone
Data centers
IPX
LTE
EPC
1FTTx
LTE
EPC
2
Other
IPNwk
3G Net
Ubiquitous Service Area
Acme Packet
Page
VoLTEConclusions for i3Forum
•Current Roaming m
odels are impractical, and not likely to survive long
term –Backhaul of bandwidth too expensive
–SIP UA Universal Interoperability not likely soon
–Service Differentiation by carriers not possible
•IPX O
pportunities in LTE
–Access/Authentication/Identity/Trust during roaming
–Charging during roaming
–Connections to existing 3G
–Connections between LTE Providers
–PSTN Term
inations
–Connections to Enterprises
–Connections to Federations
25
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