Implement Juniper L3 Switch for EPC (SGi,S5,S6a Interface)

Another example complete config on Juniper layer 3 switch (L3_Switch) for implement EPC (SGi, S5, S6a interface). Please find parameter for crosscheck. Previous posting is implement Cisco L3 Switch for EPC (SGi,S5,S6a Interface), have posted config on Juniper for S11 Interface.

Please refer to LTE Interface and Virtual Routing for picture.

#### Parameter (S11, SGi, S5, S6a)

L3_Switch (JunOS)
ge-0/0/1: S11_MME
ge-0/0/2: S11_SGW
ge-0/0/3: S11_DNS
ge-0/0/4: S6a_HSS
ge-0/0/5: S6a_MME
ge-0/0/6: S5_SGW
ge-0/0/7: S5_PGW
ge-0/0/8: SGi_PGW

IP Address & Routing

MME_S11 192.168.16.2/28, gateway (default route) 192.168.16.1

SGW_S11 192.168.20.2/28, gateway (default route) 192.168.20.1

DNS_S11 192.168.21.2/28, gateway (default route) 192.168.21.1

HSS_S6a 192.168.8.2/28, gateway (default route) 192.168.8.1

MME_S6a 192.168.9.2/28, gateway (default route) 192.168.9.1

SGW_S5 192.168.24.2/28, gateway (default route) 192.168.24.1

PGW_S5 192.168.28.2/28, gateway (default route) 192.168.28.1

PGW_SGi 192.168.32.2/28, gateway (default route) 192.168.32.1

#### Config

set interfaces ge-0/0/4 description "S6a_HSS"

set interfaces ge-0/0/4 ether-options no-auto-negotiation

set interfaces ge-0/0/4 ether-options link-mode full-duplex

set interfaces ge-0/0/4 ether-options speed 100m

set interfaces ge-0/0/4 unit 0 family inet address 192.168.8.1/28

set interfaces ge-0/0/5 description "S6a_MME"

set interfaces ge-0/0/5 ether-options no-auto-negotiation

set interfaces ge-0/0/5 ether-options link-mode full-duplex

set interfaces ge-0/0/5 ether-options speed 100m

set interfaces ge-0/0/5 unit 0 family inet address 192.168.9.1/28

set interfaces ge-0/0/6 description "SGW_S5"

set interfaces ge-0/0/6 ether-options no-auto-negotiation

set interfaces ge-0/0/6 ether-options link-mode full-duplex

set interfaces ge-0/0/6 ether-options speed 100m

set interfaces ge-0/0/6 unit 0 family inet address 192.168.24.1/28

set interfaces ge-0/0/7 description "PGW_S5"

set interfaces ge-0/0/7 ether-options no-auto-negotiation

set interfaces ge-0/0/7 ether-options link-mode full-duplex

set interfaces ge-0/0/7 ether-options speed 100m

set interfaces ge-0/0/7 unit 0 family inet address 192.168.28.1/28

set interfaces ge-0/0/8 description "PGW_SGi"

set interfaces ge-0/0/8 ether-options no-auto-negotiation

set interfaces ge-0/0/8 ether-options link-mode full-duplex

set interfaces ge-0/0/8 ether-options speed 100m

set interfaces ge-0/0/8 unit 0 family inet address 192.168.32.1/28

set routing-instances S5_VR instance-type virtual-router

set routing-instances S5_VR interface ge-0/0/6.0

set routing-instances S5_VR interface ge-0/0/7.0

set routing-instances S6a_VR instance-type virtual-router

set routing-instances S6a_VR interface ge-0/0/4.0

set routing-instances S6a_VR interface ge-0/0/5.0

set routing-instances SGi_VR instance-type virtual-router

set routing-instances SGi_VR interface ge-0/0/8.0

Implement Cisco L3 Switch for EPC (SGi,S5,S6a Interface)

Here are complete config on Cisco layer 3 switch (L3_Switch) in Core Network (EPC) for implement SGi,S5,S6a Interface. I have posted config for Implement S11 Interface.

Please refer to LTE Interface and Virtual Routing for picture.

#### Parameter (S11, SGi, S5, S6a)

L3_Switch (Cisco)

Ethernet0/1: S11_MME

Ethernet0/2: S11_SGW

Ethernet0/3: S11_DNS

Ethernet0/4: S6a_HSS

Ethernet0/5: S6a_MME

Ethernet0/6: S5_SGW

Ethernet0/7: S5_PGW

Ethernet0/8: SGi_PGW

IP Address & Routing

MME_S11 192.168.16.2/28, gateway (default route) 192.168.16.1

SGW_S11 192.168.20.2/28, gateway (default route) 192.168.20.1

DNS_S11 192.168.21.2/28, gateway (default route) 192.168.21.1

HSS_S6a 192.168.8.2/28, gateway (default route) 192.168.8.1

MME_S6a 192.168.9.2/28, gateway (default route) 192.168.9.1

SGW_S5 192.168.24.2/28, gateway (default route) 192.168.24.1

PGW_S5 192.168.28.2/28, gateway (default route) 192.168.28.1

PGW_SGi 192.168.32.2/28, gateway (default route) 192.168.32.1

#### Config

L3_Switch#
ip vrf S6a_VR
 rd 65000:8
ip vrf S5_VR
 rd 65000:24
ip vrf SGi_VR
 rd 65000:32

vlan 14
 name S6a_HSS
 state active
 no shutdown

interface Ethernet0/4
 switchport
 switchport access vlan 14

interface vlan14
 description S6a_HSS
 ip vrf forwarding S6a_VR
 ip address 192.168.8.1 255.255.255.240
 no shutdown

vlan 15
 name S6a_MME
 state active
 no shutdown

interface Ethernet0/5
 switchport
 switchport access vlan 15

interface vlan15
 description S6a_MME
 ip vrf forwarding S6a_VR
 ip address 192.168.9.1 255.255.255.240
 no shutdown

vlan 16
 name S5_SGW
 state active
 no shutdown

interface Ethernet0/6
 switchport
 switchport access vlan 16

interface vlan16
 description S5_SGW
 ip vrf forwarding S5_VR
 ip address 192.168.24.1 255.255.255.240
 no shutdown

vlan 17
 name S5_PGW
 state active
 no shutdown

interface Ethernet0/7
 switchport
 switchport access vlan 17

interface vlan17
 description S5_PGW
 ip vrf forwarding S5_VR
 ip address 192.168.28.1 255.255.255.240
 no shutdown

vlan 18
 name SGi_PGW
 state active
 no shutdown

interface Ethernet0/8
 switchport
 switchport access vlan 18

interface vlan18
 description SGi_PGW
 ip vrf forwarding SGi_VR
 ip address 192.168.32.1 255.255.255.240
 no shutdown

Revise Configuration Cisco L3 Switch for S11 Interface

Some of Cisco switch with layer 3 feature (Cisco 3750, etc) or routers with switching capabilities (Cisco 76 series, etc) have different way to config. In previous post Implement Cisco L3 Switch for S11 Interface and Implement Cisco L3 Switch for MME,SGW,DNS (S11 Interface), used physical-interface to configure IP address and virtual routing (VRF). Also don't forget to configure 'no switchport' to enable physical-interface as layer 3, due to some case interface as layer 2 by default.

#### Config

L3_Switch#

ip vrf S11_VR

 rd 65000:16

interface Ethernet0/1

 description S11_MME

 ip vrf forwarding S11_VR

 ip address 192.168.16.1 255.255.255.240

 duplex auto

interface Ethernet0/2

 description S11_SGW

 ip vrf forwarding S11_VR

 ip address 192.168.20.1 255.255.255.240

 duplex auto 

interface Ethernet0/3

 description S11_DNS

 ip vrf forwarding S11_VR

 ip address 192.168.21.1 255.255.255.240

 duplex auto 

The other way is used vlan-interface to configure IP address and virtual routing (VRF), create vlan-id and assign physical interface to access mode. Also don't forget to configure 'no switchport' to enable vlan-interface as layer 3, due to some case interface as layer 2 by default.

#### Config

L3_Switch#

ip vrf S11_VR

 rd 65000:16

vlan 11

 name S11_MME

 state active

 no shutdown

interface Ethernet0/1

 switchport

 switchport access vlan 11

 duplex auto

interface vlan11

 no switchport

 description S11_MME

 ip vrf forwarding S11_VR

 ip address 192.168.16.1 255.255.255.240

vlan 12

 name S11_SGW

 state active

 no shutdown

interface Ethernet0/2

 switchport

 switchport access vlan 12

 duplex auto

interface vlan12

 no switchport

 description S11_SGW

 ip vrf forwarding S11_VR

 ip address 192.168.20.1 255.255.255.240

vlan 13

 name S11_DNS

 state active

 no shutdown

interface Ethernet0/3

 switchport

 switchport access vlan 13

 duplex auto

interface vlan13

 no switchport

 description S11_DNS

 ip vrf forwarding S11_VR

 ip address 192.168.21.1 255.255.255.240

My apologies about it, for next I will use vlan-interface to configure Cisco switch interface as layer 3.