►
From YouTube: IETF101-XRBLOCK-20180322-1330
Description
XRBLOCK meeting session at IETF101
2018/03/22 1330
https://datatracker.ietf.org/meeting/101/proceedings/
A
A
A
Okay,
so
this
is
the
SR
block
the
note
well
is
we
have
already
the
new
not
well
again,
nothing
changed
from
last
half
an
hour
the
agenda,
so
we
have
the
extra
block
status,
update
a
IP
TM
initial
registry
entries
for
extra
block
matrix
by
Rachel
and
effective
locks
index
reporting
is
Chino.
Rachel
will
also
present
them
and
the
next
step
the
word
status,
the
RT
RT
c
PX
r
battery
RTC
worry
about
the
CP
eczema
to
0-9,
submitted
to
eyes
three
waiting
for
ad
go
ahead.
A
A
This
is
just
okay,
we
can
put
it
at
the
end.
If
you
have
time,
otherwise
we
will
to
go.
Do
it
offline,
but
just
the
point
that
they
was
making.
Then
then
wrote
this
presentation,
so
he
put
all
the
other
things
that
are
there
and
thanks.
Then
his
thing
is
I'm
able
to
attend,
is
invocation
or
something
okay.
So
first
presentation
is
the.
B
A
C
C
D
So
what
is
the
impact?
Applause
index
means?
It's
a
actually
is
a
metric.
It
intends
to
be
a
very
simple
one
that
they
could.
You
know
Ameri
the
effectiveness
of
our
lost
prepare
means,
and
it's
a
simple
metric,
so
it
could
be
directly
compared
so
here
lista
two
example
usage.
You
could
use
it.
You
know
at
the
end
of
the
RTP
receiver,
to
compare
different
RDP,
endpoints
and
also
it
can
be.
You
know,
improvement
in
the
middle
box
in
network
to
find
out
which
part
of
the
net
Network
the
cost.
D
Why
this
new
metric?
Why
not
use
the
older
ones?
Okay,
we
have
a
couple
of
metrics
that
we
standardized
with
them
proposed
repair
loss
or
see
75098
ryx.
This
value
can
be
compared
very
simple:
it's
just
a
bomb
in
account
in
Marisa
if
the
effectiveness
of
loss
repair
prepare,
but
it's
difficult
for
middle
box,
because
it's
for
especially
for
you
know,
for
example,
I
can
router
something
they
need
to
implement
it
with
parents.
You
know
algorithm
to
support
the
metrics
and
it
does
not
consider
the
back
packet
burst.
D
The
other
matches
like
a
post
repair
lost
wrong
lens
encoding
yeah.
It
marries
you
know
if
that
you've
lost
repair,
and
it
can
also
easily
I
know
to
figure
out
the
bursts.
But
it's
not
easy
to
be
compared
and
mailbox
need
to.
You
know
also
implements
a
repairman
mechanism
to
support
the
metrics.
Yes,.
D
So
this
is
how
we
do
choose
effective
loss
index.
It
assumes
and
model
that
you
know,
loss
repairman's
are
applied
on
already
be
met,
a
TV
package
that
means
that
the
loss
repayments
use,
and
you
know
in
different
streams
or
the
ends.
You
know,
media
stream
intercepts
and
I
it
can
calculate
by
pipe
batch.
Each
batch
is
echoing
size
and
for
one
path
for
one
batch.
We
compare
the
receiver
loss
and
the
effective
lost
stress
rock
showed
it's
it's
a
it.
It's
kind
of
you
know
configuration
that
could
be
pre-configured
in
the
system.
D
D
Here
is
just
an
example
to
show
how
we
do
this
yeah,
maybe
I'm
not
going
to
describe
that.
Okay
next,
please.
So
this
is
a
new
Excel
block
that
do
we
have
to.
Is
then
that
you
include
these
metrics
to
to
report.
So
it
says
16,
bits
and
yeah.
We
do
some.
You
know
modifying
the
calculon
results
of
yeah,
yeah,
I,
buy,
say
five
six.
D
5565
yeah,
so
sorry
anyway.
Yes,
next
yeah,
this
is
a
new
STP
attribute
a
support.
This
mattress
is
report
next,
so
applicability
so
applications
can,
you
know,
prescribes
a
batch
size
for
themselves
without
signaling,
for
example,
you
configure
it
in
your
system
and
also
you
can
do
it
by
SDP
or
out
of
something
signaling
things,
how
to
decide
the
the
number
of
batches
so
with
the
number
of
batches.
During
a
moment
he
wrote
it
should
not
be
very
a
few.
Otherwise.
The
result
may
not
be
accurate
enough,
so
yeah.
D
This
is
just
some
ways
how
to
decide
it
nest,
nest,
yeah,
I
think
that's
all
I
got
because
yes,
we
we
think
this
is
very
useful
and
we
asked
for
maybe
consider
two
to
debate
that.
So
what
can
I
tell
I
forgot
to
mention
that
yeah
we
may
have
a
IP
are
related
to
it,
and
maybe
this
will
be
declared
later
yeah.
That's
it
any
comments.
A
Okay,
so
I
think
that
I
don't
know
what
to
currently
to
do,
because
we
figure
out
to
figure
out
how
they
continue
to
work
in
this
working
group
and
I'm,
not
the
chair
here.
So
I
don't
want
to
make
any
calls
about
about
such
an
issue,
but
I
will
ask
people
to
to
at
least
to
review
and
see
if
it's
it's
okay
and
if
they
have
any
comment
to
get
it
as
an
extra
block
and
we'll
see
how
to
this
can
discuss
afterwards.
A
When
we
decide
how
to
progress
was
working
group
how
to
what
to
do
with
documents
currently
in
this
working
with
how
to
to
progress
the
work,
because
there
are
new
work,
that's
partly
coming:
okay,
okay,
sorry,
the
battery
ran
out
and
the
battery
inside
is
not
the
ones
that
they
have
here,
so
even
replace
them.
This.
E
A
F
E
A
Feel
that
I
can
make
the
call,
because
I'm
just
sitting
in
this
meeting
and
I'm,
not
the
work,
a
new
chair
and
I
mean
we
need
to
decide
how
to
how
to
do
that
and
I
understand
it's
in
scope
of
do
what
I
hope
is
doing
and
it's
to
do
it
and
all
that,
but
I
don't
want
to
to
make
her
call
on
me.
Maybe
Ben
can
comment
on
that,
but
I
don't
feel
like
that
should
currently
be
my
call
I.
D
Understand
that
in
this
room-
and
most
people
may
you
know,
are
interested
in
the
you
know
coverings
conferencing
things,
but
you
know
this
is
really
the
you
spoiling
for
our
streaming
cases,
because
you
know
not
just
in
China
Tran
market
China
operators
also
some
European
operators.
They
deploy
IPTV,
something
they
need
ways
to.
You
know
to
figure
out
what
this
you
know
the
problem
when
they
delivers
the
services
so
and
yeah.
That's
that's
it's
something
that
to
our
blood,
considering
them.
G
G
D
D
The
men
in
intention
of
this
work
is
to
you
know,
provide
a
single
point
of
reference,
mometrix,
defining
different
groups
and
to
achieve
interoperability,
because
many
you
know
metrics
that
you
find
that
we
need
to
find
ways
to
do
to
allow
them
and
to
also
to
facilitate
the
cooperation
amendments
even
when
using
independent
implementation
measurement
systems
so
yeah
those
metrics
are
many
better.
Some.
You
know
the
IP
related
metrics,
also
some
tcp
rating
matrix,
but
their
work
also
gives
an
example
of
how
except
metrics
could
be
registered,
but
they
they
just
give
them
a
demo.
D
Yesterday
they
don't.
You
know,
you
know,
as
they
don't
manage
mandate
them
to
the
Xbox,
the
metrics
to
be
registered
so
in
when
I.
Looking
at
when
I
look
in
that
that
work,
I
think
possibly
that
work
you
know
should
be
could
be
applied
to
X
epic
metrics,
because
if
the
metrics
are
registered,
it
also
allowed
for
some
reporting
protocols
other
there
may
be
RTC
pxr,
as
are
our
arch.
You
maybe
repose
its
RTP
related
our
RTP
layer,
metrics.
D
So
I
think
this
is
also
you
know,
because
when
I
do
in
some
IP
TV
streaming
services-
and
this
is
something
that
operators
are
care
about-
also
yeah-
is
it
easy
to
compare
when
using
different
measurement
systems?
So?
But,
but
you
know
this
decision
that
decisions
are
not
make
in
IP
p.m.
and
it
should
be
discussing
X
a
box.
So
that's
why?
With.
F
A
Just
for
clarification,
I
mean
this
is
this
is
I
mean
I,
don't
know
if
anyone
here
follows
also
I
ppm
but
I
IP
have
started
an
effort
to
register
all
metrics
that
has
to
do,
as
it
said,
general
matrix
and
the
methods
how
to
use
them
as
a
overall
and
part
of
it.
They
they
allocated
the
allocated
some
place
for
also
for
our
TCP
ones.
A
So
what
Rachel
suggests
is
that
we
will
try
to
fill
this
registry
with
information
from
our
TC
from
our
from
Excel
blocks
are
TCP
metrics
into
that
registry
that
they
are
conducting
over
there.
It
was
mentioned
also
in
IP
p.m.
ow
almota
mean
is
the
editor
of
this
document
in
the
IP
pm,
and
he
mentioned
that
we
are
also.
We
look
at
and
see
you
if
you
want
to
do
at
the
rtcp
section
there
or
not.
A
A
C
C
C
Yes,
that
an
answer
to
Jonathan's
question:
it's
it's
a
registry,
in
fact,
I've
I've
already
done
a
lot
of
early
work
with
Ayane
to
get
to
get
this
sorted
out
so
yeah,
it's
a
registry.
It's
not
a
registry.
Yet,
though,
make
your
comments
last
call,
if
you
want
so
white
part
and
burn
well,
yeah,
yeah,
but
but
I
think
I
Anna's
as
prepared
to
make
this
one,
as
they
are
any
other,
in
fact
we're
getting
a
whole
new
namespace
for
this,
which
I
Anna
was
happy
with.
C
So
the
the
problem
and
the
issue
with
making
these
registry
entries
is
that
they
really
need
a
lot
of
specificity
to
achieve
some
of
the
goals
on
the
first
page
there,
for
example,
to
make
the
metrics
comparable
and
so
forth.
So
what
we
have
in
the
registry
is
an
example:
rtcp
XR
metric,
it's
a
little
bit
behind
in
terms
of
the
registry
format,
changes
that
I
Ana
proposed.
So
it's
it's
just
marked
as
an
example,
but
you
have
to
be
pretty
serious
about
this.
C
On
to
the
met
the
registry
format,
to
get
this
set
of
initial
contacts
right
and
the
sooner
we
do
that,
the
sooner
we'll
press,
the
working
group,
West,
call
and
publication
requested
button
I
think
it's
had
pretty
good
review.
So
so
that's
the
way
you
should
think
about
it
as
a
document
that
this
working
group
would
propose
that
would
fit
the
eventually
proposed
registry
format
Thanks.
So
so.
A
A
C
A
E
E
E
A
A
E
A
A
G
A
E
D
Actually,
in
my
opinion,
doing
this
work,
the
benefit
is
that
you
know
not
just
you
know:
RTP
endpoints
couldn't
it.
You
know
to
report
this
matrix.
Also,
you
know,
maybe
you
know
some
middleboxes
that
could
you
know
to
to
read
the
RTP
layers
you
suppose
this
matrix
to
do
some
troubleshooting
this
is
they
don't
have
to
cheat
to
do
to
implement
our
tcp
or
it's
kind
of
do
to
do
that
they.
A
Yeah
I
think
the
question
the
question
will
be
and
I
think
that's
what
I
was
trying
to
say
is
that
the
question
will
be
whether
I
mean
you
are
sending
to
different
places
or
the
sub
central
place
where
you
can
find
all
the
metrics.
So
and
again
it's
a
question.
We
have
to
ask
if
people
think
it's
valuable,
yeah
I.
C
C
So
what
we
wanted
to
do
in
this
registry
was
to
nail
down
that
flexibility
so
that,
if
not
only
did
where
the
methods
of
measurements
and
the
definitions
that
used
the
same,
but
the
parameters
like
the
amount
of
time
you
use
to
declare
loss
for
a
packet
that
doesn't
arrive
and
other
more
complicated
factors,
I
mean
not,
obviously
not
the
source
and
destination
addresses.
Those
are
variables
too,
and
we
distinguish
between
run
time
and
fixed
variables.
So
so
this
this
was
a
key
thing
to
nail
down
was
the
fixed
variables
for
I
ppm
metric.
C
F
C
A
H
H
So
I'll
add
one
one
more
option
to
this
is
to
keep
doing
what
we
just
did.
Dan
does
Dan
said
he
does
have
time
to
continue
with
chair
he,
but
he
didn't
have
the
resources
for
travel.
So
one
additional
option
to
what's
on
the
list
is
to
keep
the
group
going
with
Dan
as
a
chair
and
either
add
and
person
who
can
travel
or
X.
Our
blog
doesn't
meet
every
time,
but
or
we
could
meeting
cooperation
with
one
of
the
other
groups
whenever
X
are
black
meets
I.
H
H
H
A
H
So
I
guess
it's
not
really
time
to
discuss
these
next
steps
right
now,
so
I'll
bring
it
back
up
on
the
mailing
list
it
with
the
chairs.
But
if
people
have
opinions
on
this,
please
send
either
to
me
or
to
the
mailing
me
and
the
cheers
over
to
the
mailing
list,
whichever
you
would
rather
do,
and
otherwise
I
will
figure
it
out
well
figure
out
well
before
or
Montreal,
okay,.