Implement Cisco L3 Switch for EPS E-UTRAN (S1-MME,S1-U Interface)

Here are the last config on Cisco layer 3 switch (L3_Switch) for implement E-UTRAN network (S1-MME, S1-U interface).

Please refer to LTE Interface and Virtual Routing for picture. Config for S11 and SGi, S5, S6a Interface.

#### Parameter (S11, SGi, S5, S6a, S1-MME, S1-U)

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
Ethernet0/9: S1_MME
Ethernet0/10: S1_ENODEB
Ethernet0/11: S1U_SGW
Ethernet0/12: S1U_ENODEB

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
MME_S1 192.168.0.2/28, gateway (default route) 192.168.0.1
ENODEB_S1 192.168.2.2/28, gateway (default route) 192.168.2.1
SGW_S1U 192.168.4.2/28, gateway (default route) 192.168.4.1
ENODEB_S1U 192.168.6.2/28, gateway (default route) 192.168.6.1


#### Config

L3_Switch#
vlan 19
 name S1_MME
 state active
 no shutdown

interface Ethernet0/9
 switchport
 switchport access vlan 19

interface vlan19
 description S1_MME
 ip vrf forwarding S1_VR
 ip address 192.168.0.2 255.255.255.240
 ip address 192.168.0.1 255.255.255.240
 no shutdown

vlan 20
 name S1_ENODEB
 state active
 no shutdown

interface Ethernet0/10
 switchport
 switchport access vlan 20

interface vlan20
 description S1_ENODEB
 ip vrf forwarding S1_VR
 ip address 192.168.2.2 255.255.255.240
 ip address 192.168.2.1 255.255.255.240
 no shutdown

vlan 21
 name S1U_SGW
 state active
 no shutdown

interface Ethernet0/11
 switchport
 switchport access vlan 21

interface vlan21
 description S1U_SGW
 ip vrf forwarding S1_VR
 ip address 192.168.4.2 255.255.255.240
 ip address 192.168.4.1 255.255.255.240
 no shutdown

vlan 22
 name S1U_ENODEB
 state active
 no shutdown

interface Ethernet0/12
 switchport
 switchport access vlan 22

interface vlan22
 description S1U_ENODEB
 ip vrf forwarding S1_VR
 ip address 192.168.6.2 255.255.255.240
 ip address 192.168.6.1 255.255.255.240
 no shutdown

Correction for IP address in interface L3_Switch, Thank you :-)