Last week of February 2015, Franck Simon, managing director at the internet exchange point France-IX, gave three presentations about the Best Common Practices for the IXPs. This first part of the trilogy focuses on the practices used by the IXP.

1. Best Common Practices
for IXPs
Franck Simon – France IX Services
fsimon@franceix.net

2. BCP for IXPs - PoPs
• Neutral
coloca+on
(ideally
datacenters)
for
PoPs
• Layer-­‐2
infrastructure
(either
na+ve
Ethernet
or
VPLS
based)
• Resiliency
and
scalability
:
– Equipment
redundancy
or
spare
equipment
for
PoPs
– When
mul+-­‐PoPs
architecture
:
edge
PoPs
&
core
PoPs
vs
full-­‐mesh
design
– Use
of
passive
WDM
for
PoPs
interconnec+ons
(when
appropriate
and
possible)
2

3. BCP for IXPs - NOC
• NOC
(outsourced
or
run
internally)
and
technical
support
3

4. BCP for IXPs – Peering
LAN
• Same
VLAN
for
Unicast
IPv4/IPv6:
– IPv4
&
IPv6
• Specific
VLAN
for
Mul+cast
(if
needed)
• Specific
VLANs
for
private
peering
(closed
user
groups)
4

5. BCP for IXPs – Technical
requirements
• Provide
na+ve
layer-­‐2
(or
fully
transparent
layer-­‐2
infrastructure)
• Block
spanning-­‐tree
on
all
members
ports
• Allow
only
authorized
EtherTypes
(IPv4,
IPv6,
ARP)
• Limit
MAC
learning
(one
MAC/port)
and
apply
MAC
filtering
• Use
storm
control
(broadcast/mul+cast)
or
apply
rate-­‐limi+ng
filters
to
limit
broadcast
• Allow
LACP
• Quaran+ne
VLAN
(mainly
for
new
members)
=>
Don’t
connect
a
new
member
on
the
IXP
without
running
a
strict
valida+on
procedure
5

6. BCP for IXPs – Main
services
• NTP
service
• DNS
servers,
DNS
root
servers
• Routes
servers
• Routes
collector
• Web
portal:
– Looking-­‐glass
– Intranet
– Stats
(at
least
SNMP
stats,
but
ideally
sFlow/Ne_low
stats)
– TTS
• Members
mailing-­‐list
6

7. Cf.
Euro-­‐IX
document
:
haps://www.euro-­‐ix.net/documents/1391-­‐euro-­‐ix-­‐
ixp-­‐bcops-­‐221014-­‐pdf?download=yes
7
BCP for IXPs

8.
Ques+ons
???
8
BCP for IXPs