Inter-IX IX/-IX 10/21/2003 JAPAN2003 2

Inter-IX satoru@ft.solteria.net 10/21/2003 JAPAN2003 1

Inter-IX IX/-IX 10/21/2003 JAPAN2003 2

Inter-IX? Inter-IX IX IX L2 10/21/2003 JAPAN2003 3

(1) IX (-IX) IX Resiliency 10/21/2003 JAPAN2003 4

(2) IX Ethernet IP/MAC Dot1q VLAN? IX 10/21/2003 JAPAN2003 5

(3) IX Ethernet L3 3 LSP IX 10/21/2003 JAPAN2003 6

(4) WIDE DIX-IE JT mplsassocio 10/21/2003 JAPAN2003 7

? Rc IX-B 10/21/2003 JAPAN2003 8

? Rc IX-B 1 Rc 2 10/21/2003 JAPAN2003 9

? Rc 10 IX-B 1 Rc 2 10/21/2003 JAPAN2003 10

? LSP BGP Rc IX-B 10/21/2003 JAPAN2003 11

( byte) MTU Broadcast/Multicast IX 10/21/2003 JAPAN2003 12

Broadcast/Multicast? Rc IX-B LDP, RSVP-TE, BGP? 10/21/2003 JAPAN2003 13

Broadcast/Multicast? Rc IX-B LDP, RSVP-TE, BGP? 10/21/2003 JAPAN2003 14

LDP Targeted hello Rc LDP Hello ( All router on this subnet) IX-B 10/21/2003 JAPAN2003 15

Multicast RSVP BGP Rc IX-B LDP, RSVP-TE, BGP? 10/21/2003 JAPAN2003 16

RFC3107 Carrying label info, in BGP-4 Capability value -> AFI:1, SAFI:4 Labeled unicast MP-NLRI -> AFI:1, SAFI:4 Rc IX-B MPBGP UPDATE (Label +, Rc FEC ) 10/21/2003 JAPAN2003 17

IX-B Rc 10 10/21/2003 JAPAN2003 18

Label Spoofing/3 rd party next_hop IX-B 10 Rc 10 10/21/2003 JAPAN2003 19

10 IX-B Rc 10 10/21/2003 JAPAN2003 20

20 IX-B Rc 10 10/21/2003 JAPAN2003 21

AS#1 (1) 2 1 1.1.1.0/24 AS# 9592 AS#2 no mpls ip propagate-ttl! interface gigabitethernet 1/0 ip address 1.1.1.2 255.255.255.0 mpls mtu 1504! router bgp 1 no bgp default ipv4-unicast neighbor 1.1.1.1 remote-as 9592 neighbor 10.0.0.1 remote-as 2 (Cisco) neighbor 10.0.0.1 disable-connected-check! address-family ipv4 neighbor 1.1.1.1 activate neighbor 1.1.1.1 send-label exit-address-family! 10/21/2003 end JAPAN2003 22 10.0.0.1/32

(2) AS#1 2 1 1.1.1.0/24 AS# 9592 AS#2 10.0.0.1/32 ge-0/1/0 { protocols { group as-2 { unit 0 { mpls { type external; family inet { no-propagate-ttl; multihop { mtu 1500; interface all; ttl 1; address 1.1.1.2/24; } } } bgp { local-address 1.1.1.2; family mpls { group mpls { export as-2-policy; mtu 1504; type external; peer-as 2; local-address 1.1.1.2; neighbor 10.0.0.1; } family inet { } } labeled-unicast; } peer-as 9592; neighbor 1.1.1.1; } 10/21/2003 JAPAN2003 23 } (Juniper)

(3) AS#1 2 1 1.1.1.0/24 AS# 9592 AS#2 10.0.0.1/32 (Cisco) Router#sh ip route 202.249.2.0/24 is variably subnetted, 2 subnets, 2 masks C 1.1.1.2/32 is directly connected, GigabitEthernet1/0 C 1.1.1.0/24 is directly connected, GigabitEthernet1/0 10.0.0.0/8 is variably subnetted, 2 subnets, 2 masks B 10.0.0.1/32 [20/0] via 1.1.1.1, 01:06:47 Router#show mpls for 10.0.0.1 Local Outgoing Prefix Bytes tag Outgoing Next Hop tag tag or VC or Tunnel Id switched interface None 23 10.0.0.1/32 0 Gi1/0 1.1.1.1 Router#show ip bgp label Network Next Hop In label/out label 10.0.0.1/32 1.1.1.1 nolabel/23 10/21/2003 JAPAN2003 24

(4) AS#1 2 1 1.1.1.0/24 AS# 9592 AS#2 10.0.0.1/32 (Juniper) jt@viikrt02-g1> show route inet.0: + = Active Route, - = Last Active, * = Both 10.10.10.0/24 *[BGP/170] 03:49:37, localpref 100, from 10.0.0.1 AS path: 2 I > to 1.1.1.1 via ge-0/1/0.0, Push 24 10.0.0.1/32 *[BGP/170] 03:49:52, localpref 100 AS path: 9592? > to 1.1.1.1 via e-0/1/0.0, Push 24 mpls.0: 3 destinations, 3 routes (3 active, 0 holddown, 0 hidden) 10/21/2003 JAPAN2003 25

Cisco BGP address-family manner Juniper labeled ipv4 unicast MPBGP traffic-engineering bgp-igp-both-ribs Label BGP inet.0 IPv4 Unicast Capability 10/21/2003 JAPAN2003 26

IX -IX L2IX IX Switch, IX Broadcast/Multicast -IX Label Spoofing/3rd party next_hop LSP BGP RFC3107 Labeled Unicast IX BGP 10/21/2003 JAPAN2003 27

10/21/2003 JAPAN2003 28