Один из наших читателей (пожелавший остаться анонимом) прислал нам по мылу конфигурацию для схемы с Juniper MX80, в которой прокидывается vlan через trunk проходящий через 80тые Juniper`ы.
Спасибо ему за инфу, т.к. она точно будет полезна всем кто столкнется с подобной задачей.
Топология
MX80-client [ge-1/0/2] <—> [ge-1/0/4] MX80-1 [ge-1/0/1] <—> [ge-1/0/7] MX80-2 [ge-1/1/1] <—> [ge-2/0/0] M120-client
Описание топологии
Access port <—> (Trunk port back to back) <—> Access port
IP-адрес на MX80-client (слева) — 200.200.200.1/30
IP-адрес на M120-client (справа) — 200.200.200.2/30
Конфиги
MX80-1
root@MX80-1# show interfaces ge-1/0/1
flexible-vlan-tagging;
native-vlan-id 100;
encapsulation flexible-ethernet-services;
unit 2 {
encapsulation vlan-bridge;
vlan-id 10;
}
root@MX80-1# show interfaces ge-1/0/4
encapsulation ethernet-bridge;
unit 0 {
family bridge;
}
root@MX80-1# show bridge-domains
DEV {
domain-type bridge;
vlan-id 10;
interface ge-1/0/1.2;
interface ge-1/0/4.0;
}
MX80-2
root@MX80-2# show interfaces ge-1/0/7
flexible-vlan-tagging;
encapsulation flexible-ethernet-services;
unit 2 {
encapsulation vlan-bridge;
vlan-id 10;
}
root@MX80-2# show interfaces ge-1/1/1
encapsulation ethernet-bridge;
unit 0 {
family bridge;
}
root@MX80-2# show bridge-domains
DEV {
domain-type bridge;
vlan-id 10;
interface ge-1/0/7.2;
interface ge-1/1/1.0;
}
MX80-client
root@MX80-client# show interfaces ge-1/0/2
unit 0 {
family inet {
address 200.200.200.1/30;
}
}
root@MX80-client# run show interfaces ge-1/0/2
Physical interface: ge-1/0/2, Enabled, Physical link is Up
Interface index: 160, SNMP ifIndex: 514
Link-level type: Ethernet, MTU: 1514, Speed: 1000mbps, BPDU Error:
None, MAC-REWRITE Error: None, Loopback: Disabled,
Source filtering: Disabled, Flow control: Enabled, Auto-negotiation:
Enabled, Remote fault: Online, Speed-negotiation: Disabled,
Auto-MDIX: Enabled
Device flags : Present Running
Interface flags: SNMP-Traps Internal: 0x0
Link flags : None
CoS queues : 8 supported, 8 maximum usable queues
Current address: 80:71:1f:c2:05:62, Hardware address: 80:71:1f:c2:05:62
Last flapped : 2011-01-19 13:12:48 UTC (17:20:05 ago)
Input rate : 0 bps (0 pps)
Output rate : 0 bps (0 pps)
Active alarms : None
Active defects : None
Logical interface ge-1/0/2.0 (Index 71) (SNMP ifIndex 656)
Flags: SNMP-Traps 0x0 Encapsulation: ENET2
Input packets : 30
Output packets: 9
Protocol inet, MTU: 1500
Flags: Sendbcast-pkt-to-re
Addresses, Flags: Is-Preferred Is-Primary
Destination: 200.200.200.0/30, Local: 200.200.200.1,
Broadcast: 200.200.200.3
Protocol multiservice, MTU: Unlimited
M120-client
root@M120# show interfaces ge-2/0/0
unit 0 {
family inet {
address 200.200.200.2/30;
}
}
root@M120# run show interfaces ge-2/0/0
Physical interface: ge-2/0/0, Enabled, Physical link is Up
Interface index: 143, SNMP ifIndex: 523
Link-level type: Ethernet, MTU: 1514, Speed: 1000mbps, Loopback:
Disabled, Source filtering: Disabled, Flow control: Enabled,
Auto-negotiation: Enabled, Remote fault: Online
Device flags : Present Running
Interface flags: SNMP-Traps Internal: 0x4000
Link flags : None
CoS queues : 8 supported, 8 maximum usable queues
Current address: 00:19:e2:67:f3:fc, Hardware address: 00:19:e2:67:f3:fc
Last flapped : 2011-01-19 18:32:34 UTC (17:19:47 ago)
Input rate : 0 bps (0 pps)
Output rate : 0 bps (0 pps)
Active alarms : None
Active defects : None
Logical interface ge-2/0/0.0 (Index 87) (SNMP ifIndex 310)
Flags: SNMP-Traps Encapsulation: ENET2
Input packets : 7
Output packets: 2430
Protocol inet, MTU: 1500
Flags: None
Addresses, Flags: Is-Preferred Is-Primary
Destination: 200.200.200.0/30, Local: 200.200.200.2,
Broadcast: 200.200.200.3
Проверка ICMP запросами
root@M120# run ping 200.200.200.1
PING 200.200.200.1 (200.200.200.1): 56 data bytes
64 bytes from 200.200.200.1: icmp_seq=0 ttl=64 time=0.541 ms
64 bytes from 200.200.200.1: icmp_seq=1 ttl=64 time=0.499 ms
64 bytes from 200.200.200.1: icmp_seq=2 ttl=64 time=0.496 ms
64 bytes from 200.200.200.1: icmp_seq=3 ttl=64 time=0.505 ms
^C
--- 200.200.200.1 ping statistics ---
4 packets transmitted, 4 packets received, 0% packet loss
round-trip min/avg/max/stddev = 0.496/0.510/0.541/0.018 ms
root@MX80-client# run ping 200.200.200.2
PING 200.200.200.2 (200.200.200.2): 56 data bytes
64 bytes from 200.200.200.2: icmp_seq=0 ttl=64 time=0.652 ms
64 bytes from 200.200.200.2: icmp_seq=1 ttl=64 time=0.511 ms
64 bytes from 200.200.200.2: icmp_seq=2 ttl=64 time=0.445 ms
64 bytes from 200.200.200.2: icmp_seq=3 ttl=64 time=0.504 ms
^C
--- 200.200.200.2 ping statistics ---
4 packets transmitted, 4 packets received, 0% packet loss
round-trip min/avg/max/stddev = 0.445/0.528/0.652/0.076 ms
Таблица MAC адресов на MX80`ых расположенных в центре по топологии
root@MX80-1# run show bridge mac-table
MAC flags (S -static MAC, D -dynamic MAC,
SE -Statistics enabled, NM -Non configured MAC)
Routing instance : default-switch
Bridging domain : DEV, VLAN : 10
MAC MAC Logical
address flags interface
00:19:e2:67:f3:fc D ge-1/0/1.2
80:71:1f:c2:05:62 D ge-1/0/4.0
root@MX80-2# run show bridge mac-table
MAC flags (S -static MAC, D -dynamic MAC,
SE -Statistics enabled, NM -Non configured MAC)
Routing instance : default-switch
Bridging domain : DEV, VLAN : 10
MAC MAC Logical
address flags interface
00:19:e2:67:f3:fc D ge-1/1/1.0
80:71:1f:c2:05:62 D ge-1/0/7.2