Implement Juniper L3 Switch for S11 Interface (MME, SGW, DNS)

Another view and perspective example config on Juniper layer 3 switch (L3_Switch) for implement S11 interface (S11_VR). There are 3 interface or node in S11_VR virtual instance, MME, SGW and DNS. Previous posting is implement Cisco L3 Switch for S11 Interface.

#### Parameter

L3_Switch (JunOS)

ge-0/0/1: MME

ge-0/0/2: SGW

ge-0/0/3: DNS

IP Address & Routing

MME 192.168.16.2/28, gateway (default route) 192.168.16.1

SGW 192.168.20.2/28, gateway (default route) 192.168.20.1

DNS 192.168.21.2/28, gateway (default route) 192.168.21.1

#### Config

set interfaces ge-0/0/1 description "S11_MME"

set interfaces ge-0/0/1 ether-options no-auto-negotiation

set interfaces ge-0/0/1 ether-options link-mode full-duplex

set interfaces ge-0/0/1 ether-options speed 100m

set interfaces ge-0/0/1 unit 0 family inet address 192.168.16.1/28

set interfaces ge-0/0/2 description "S11_SGW"

set interfaces ge-0/0/2 ether-options no-auto-negotiation

set interfaces ge-0/0/2 ether-options link-mode full-duplex

set interfaces ge-0/0/2 ether-options speed 100m

set interfaces ge-0/0/2 unit 0 family inet address 192.168.20.1/28

set interfaces ge-0/0/3 description "S11_DNS"

set interfaces ge-0/0/3 ether-options no-auto-negotiation

set interfaces ge-0/0/3 ether-options link-mode full-duplex

set interfaces ge-0/0/3 ether-options speed 100m

set interfaces ge-0/0/3 unit 0 family inet address 192.168.21.1/28

set routing-instances S11_VR instance-type virtual-router

set routing-instances S11_VR interface ge-0/0/1.0

set routing-instances S11_VR interface ge-0/0/2.0

set routing-instances S11_VR interface ge-0/0/3.0

#### Output

user@L3_Switch> show route table S11_VR 

S11_VR.inet.0: 6 destinations, 6 routes (6 active, 0 holddown, 0 hidden)

+ = Active Route, - = Last Active, * = Both

192.168.16.0/28    *[Direct/0] 00:03:22

                    > via ge-0/0/1.0

192.168.16.1/32    *[Local/0] 00:03:22

                      Local via ge-0/0/1.0

192.168.20.0/28    *[Direct/0] 00:03:22

                    > via ge-0/0/2.0

192.168.20.1/32    *[Local/0] 00:03:22

                      Local via ge-0/0/2.0

192.168.21.0/28    *[Direct/0] 00:03:22

                    > via ge-0/0/3.0

192.168.21.1/32    *[Local/0] 00:03:22

                      Local via ge-0/0/3.0

# Traceroute DNS to MME

DNS>

traceroute 192.168.16.2

1 192.168.21.1

2 192.168.16.2