Networking Requirements
The integrated L2VPN access to L3VPN solution allows Ethernet NodeBs to communicate with Radio Network Controllers (RNCs). It terminates the L2VPN and connects the L3VPN on a SR by creating a Virtual Ethernet group (VE-group). PW redundancy is configured to protect PWs on the L2VPN and VPN FRR is configured to protect links on the L3VPN, providing reliable connections for services. H-VPLS or PWE3 can be used to construct the L2VPN. This example uses PWE3. This scheme has the following characteristics.
| L2VPN Type | PWE3 |
| PW Redundancy Mode | Independent mode |
| Type of the PW Between SR1 and SR2 | Bypass PW |
| Tunnel Type and Tunnel Protection | TE tunnel with tunnel protection |
| Implementation Characteristics | Two-level protection (tunnel protection and PW protection) is provided, improving reliability. |
| PW redundancy in independent mode allows a public network fault to trigger only the public network link switchover. | |
| MAC address learning is not required. IP-interworking is supported. |
Figure 1 Networking diagram for configuring an integrated IP RAN (PWE3 + L3VPN) with Ethernet NodeBs
| Device | Interface | Peer Device | IP Address |
| CSG | GE1/0/1 | SR1 | 172.0.1.1/24 |
| GE1/0/2 | SR2 | 172.0.4.1/24 | |
| GE1/0/3 | NodeB | - | |
| SR1 | GE1/0/0 | SR2 | 172.0.2.2/24 |
| GE1/0/1 | CSG | 172.0.1.2/24 | |
| GE1/0/3 | RSG1 | 172.0.3.1/24 | |
| GE1/0/4 | RSG2 | 172.0.8.0/24 | |
| SR2 | GE1/0/0 | SR1 | 172.0.2.1/24 |
| GE1/0/2 | CSG | 172.0.4.2/24 | |
| GE1/0/3 | RSG2 | 172.0.6.1/24 | |
| GE1/0/4 | RSG1 | 172.0.7.1/24 | |
| RSG1 | GE1/0/0 | RSG2 | - |
| GE1/0/1 | SR1 | 172.0.3.2/24 | |
| GE1/0/2 | SR2 | 172.0.7.2/24 | |
| GE1/0/3 | RNC | - | |
| RSG2 | GE1/0/0 | RSG1 | - |
| GE1/0/1 | SR2 | 172.0.6.2/24 | |
| GE1/0/2 | SR1 | 172.0.8.2/24/24 | |
| GE1/0/3 | RNC | - |
Configuration Roadmap
The configuration roadmap is as follows:- Configure IP addresses and routes.
- Configure MPLS and public network tunnels:
- Configure a TE tunnel protection group on the CSG and SRs.
- Configure LSPs between SRs and RSGs.
- Configure PW redundancy in independent mode:
- Configure MPLS LDP remote sessions between the CSG and SRs.
- Configure service PWs.
- Configure an mPW and associate the bypass PW with the mPW.
- Configure BFD to monitor the mPW.
- Configure VRRP to determine the primary PW.
- Configure an L3VPN.
- Configure VPN instances on SR1 and RSGs.
- Configure a VE group on SRs and bind the VPN instance to the L3VE sub-interfaces.
- Establish MP-IBGP peer relationships between SRs and RSGs.
- Import direct VPN routes to SRs and RSGs.
- Configure VPN FRR.
- Configure BFD to detect faults on public network links.
- Configure VRRP on RSGs to determine their roles in the VRRP backup group.
Data Preparation
To complete the configuration, you need the following data:
- Interface number, interface IP address, and OSPF process ID
- LSR ID
- L2VC destination address, VC ID, and VC type
- BFD session name, local discriminator, and remote discriminator
- VE group number
- VRRP backup group number and priority
Procedure
- Assign an IP address to and configure a routing protocol on each interface.
- Assign an IP address to each interface.
- Configure a routing protocol on the CSG, SR1, SR2, RSG1, and RSG2 to make them routable. In this example, OSPF is used.
After the configuration is complete, run the display ip routing-table command on the CSG, SRs, and RSGs. You can view the routes learned from each other. Note that when configuring OSPF, you need to advertise 32-bit loopback interface addresses (LSR IDs) of the CSG, SRs, and RSGs.The detailed configuration is not mentioned here. - Configure basic MPLS functions and public network tunnels.
NOTE:
- Configure explicit paths between the CSG and SR1 and between the CSG and SR2.
- Configure LSPs between SRs and between SRs and RSGs.
- Enable RSVP GR, LDP GR, and OSPF GR to enhance the switching performance.
- Configure PW redundancy.
- Configure MPLS LDP remote sessions between the CSG and SRs. NOTE:
In this configuration example, TE tunnels are configured between the CSG and SRs, and thus MPLS LDP is not required. PWE3, however, uses extended LDP signaling to distribute VPN labels. Therefore, MPLS LDP remote sessions have to be configured between the CSG and SRs. An LDP LSP is configured to directly connect SRs, and thus no LDP remote session needs to be configured between SRs.# Configure the CSG.[CSG] mpls ldp
[CSG-mpls-ldp] quit
[CSG] mpls ldp remote-peer 2.2.2.2
[CSG-mpls-ldp-remote-2.2.2.2] remote-ip 2.2.2.2
[CSG-mpls-ldp-remote-2.2.2.2] quit
[CSG] mpls ldp remote-peer 3.3.3.3
[CSG-mpls-ldp-remote-3.3.3.3] remote-ip 3.3.3.3
[CSG-mpls-ldp-remote-3.3.3.3] quit
# Configure SR1.[SR1] mpls ldp
[SR1-mpls-ldp] quit
[SR1] mpls ldp remote-peer 1.1.1.1
[SR1-mpls-ldp-remote-1.1.1.1] remote-ip 1.1.1.1
[SR1-mpls-ldp-remote-1.1.1.1] quit
# Configure SR2.[SR2] mpls ldp
[SR2-mpls-ldp] quit
[SR2] mpls ldp remote-peer 1.1.1.1
[SR2-mpls-ldp-remote-1.1.1.1] remote-ip 1.1.1.1
[SR2-mpls-ldp-remote-1.1.1.1] quit
# Verify the configuration. Run the display mpls ldp session all command on the CSG and SRs to check whether the LDP session status is Operational. If the LDP session status is Operational, the LDP session is established. Use the CSG as an example.[CSG] display mpls ldp session all
LDP Session(s) in Public Network Codes: LAM(Label Advertisement Mode), SsnAge Unit(DDDD:HH:MM) A '*' before a session means the session is being deleted. ------------------------------------------------------------------------------ PeerID Status LAM SsnRole SsnAge KASent/Rcv ------------------------------------------------------------------------------ 2.2.2.2:0 Operational DU Passive 0000:00:47 190/190 3.3.3.3:0 Operational DU Passive 0000:00:47 190/190 ------------------------------------------------------------------------------ TOTAL: 2 session(s) Found.
- Configure VRRP to determine the primary PW. NOTE:
If PW redundancy in independent mode is used, VRRP has to be configured on SRs to determine which SR is the master in the VRRP backup group. After PWs are associated with mVRRP, the primary PW is determined.# Configure SR1.[SR1] interface gigabitethernet 1/0/0
[SR1-GigabitEthernet1/0/0] vrrp vrid 20 virtual-ip 172.0.2.3
[SR1-GigabitEthernet1/0/0] admin-vrrp vrid 20 ignore-if-down
[SR1-GigabitEthernet1/0/0] vrrp vrid 20 priority 150
[SR1-GigabitEthernet1/0/0] quit
[SR1] interface virtual-ethernet 1/0/0.1
[SR1-Virtual-Ethernet1/0/0.1] mpls l2vc track admin-vrrp interface gigabitethernet 1/0/0 vrid 20 pw-redundancy
[SR1-Virtual-Ethernet1/0/0.1] quit
# Configure SR2.[SR2] interface gigabitethernet 1/0/0
[SR2-GigabitEthernet1/0/0] vrrp vrid 20 virtual-ip 172.0.2.3
[SR2-GigabitEthernet1/0/0] admin-vrrp vrid 20 ignore-if-down
[SR2-GigabitEthernet1/0/0] quit
[SR2] interface virtual-ethernet 1/0/0.1
[SR2-Virtual-Ethernet1/0/0.1] mpls l2vc track admin-vrrp interface gigabitethernet 1/0/0 vrid 20 pw-redundancy
[SR2-Virtual-Ethernet1/0/0.1] quit
# Verify the configuration. Run the display vrrp command on SRs. You can view the role of each SR in the VRRP backup group. Use SR1 as an example. The default VRRP priority value is 100, and thus SR1 whose VRRP priority value is set to 150 functions as the master in the VRRP backup group.[SR1] display vrrp
GigabitEthernet1/0/0 | Virtual Router 1 State : Master Virtual IP : 172.0.2.3 Master IP : 172.0.2.2 PriorityRun : 150 PriorityConfig : 150 MasterPriority : 150 Preempt : YES Delay Time : 0 TimerRun : 1 TimerConfig : 1 Auth Type : NONE Virtual Mac : 0000-5e00-0101 Check TTL : YES Config type : admin-vrrp Create time : 2010-09-05 15:25:47 Last change time : 2010-09-05 15:25:51[RSG1] display vrrp
Vlanif10 | Virtual Router 1 State : Master Virtual IP : 120.0.1.3 Master IP : 120.0.1.1 PriorityRun : 150 PriorityConfig : 150 MasterPriority : 150 Preempt : YES Delay Time : 0 TimerRun : 1 TimerConfig : 1 Auth Type : NONE Virtual Mac : 0000-5e00-0101 Check TTL : YES Config type : normal-vrrp Create time : 2010-09-14 19:39:27 Last change time : 2010-09-14 19:39:30
- Configure MPLS LDP remote sessions between the CSG and SRs.
- Configure an L3VPN.
- Configure VRRP on SR1 and SR2 to determine a gateway for Ethernet NodeBs.# Configure SR1.
[SR1] interface virtual-ethernet 1/0/1.1
[SR1-Virtual-Ethernet1/0/1.1] vrrp vrid 10 virtual-ip 120.0.0.3
[SR1-Virtual-Ethernet1/0/1.1] vrrp vrid 10 track admin-vrrp interface gigabitethernet1/0/0 vrid 20
[SR1-Virtual-Ethernet1/0/1.1] quit
# Configure SR2.[SR2] interface virtual-ethernet 1/0/1.1
[SR1-Virtual-Ethernet1/0/1.1] vrrp vrid 10 virtual-ip 120.0.0.3
[SR2-Virtual-Ethernet1/0/1.1] vrrp vrid 10 track admin-vrrp interface gigabitethernet1/0/0 vrid 20
[SR2-Virtual-Ethernet1/0/1.1] quit
- Configure VRRP on RSGs to determine their roles in the VRRP backup group.# Configure RSG1.
[RSG1] interface Vlanif 10
[RSG1-Vlanif10] vrrp vrid 1 virtual-ip 120.0.1.3
[RSG1-Vlanif10] vrrp vrid 1 priority 150
[RSG1-Vlanif10] quit
# Configure RSG2.[RSG2] interface Vlanif 10
[RSG2-Vlanif10] vrrp vrid 1 virtual-ip 120.0.1.3
[RSG2-Vlanif10] quit
NOTE:
Configure the RNC as follows:- Configure an Eth-Trunk link to determine the active and standby links.
- Configure a VLANIF interface and assign an IP address to the VLANIF interface. Ensure that the IP address is in the same network segment with the virtual IP addresses configured on RSGs.
On an Ethernet NodeB, you need to create a sub-interface on an Ethernet interface, encapsulate 802.1Q on the sub-interface, and associate a VLAN ID with the sub-interface.
Configuration Files
- Configuration file of the CSG
# sysname CSG # mpls lsr-id 1.1.1.1 mpls mpls te mpls rsvp-te mpls rsvp-te hello mpls rsvp-te hello full-gr mpls te cspf # mpls l2vpn # # explicit-path to_sr1 next hop 172.0.1.2 next hop 2.2.2.2 # explicit-path to_sr2 next hop 172.0.4.2 next hop 3.3.3.3 # mpls ldp graceful-restart # # mpls ldp remote-peer 2.2.2.2 remote-ip 2.2.2.2 # mpls ldp remote-peer 3.3.3.3 remote-ip 3.3.3.3 # interface GigabitEthernet1/0/1 undo shutdown ip address 172.0.1.1 255.255.255.0 mpls mpls te mpls rsvp-te mpls rsvp-te hello # interface GigabitEthernet1/0/2 undo shutdown ip address 172.0.4.1 255.255.255.0 mpls mpls te mpls rsvp-te mpls rsvp-te hello # interface GigabitEthernet1/0/3 undo shutdown # interface GigabitEthernet1/0/3.10 vlan-type dot1q 10 mpls l2vc 2.2.2.2 100 tunnel-policy policy1 mpls l2vc 3.3.3.3 200 tunnel-policy policy1 secondary mpls l2vpn redundancy independent mpls l2vpn stream-dual-receiving # interface LoopBack0 ip address 1.1.1.1 255.255.255.255 # interface Tunnel1/0/1 ip address unnumbered interface LoopBack0 tunnel-protocol mpls te destination 2.2.2.2 mpls te tunnel-id 100 mpls te record-route mpls te signal-protocol rsvp-te mpls te path explicit-path to_sr1 mpls te backup hot-standby wtr 15 mpls te reserved-for-binding mpls te commit # interface Tunnel1/0/2 ip address unnumbered interface LoopBack0 tunnel-protocol mpls te destination 3.3.3.3 mpls te tunnel-id 200 mpls te record-route mpls te signal-protocol rsvp-te mpls te path explicit-path to_sr2 mpls te backup hot-standby wtr 15 mpls te reserved-for-binding mpls te commit # ospf 100 opaque-capability enable graceful-restart area 0.0.0.0 network 1.1.1.1 0.0.0.0 network 172.0.1.0 0.0.0.255 network 172.0.4.0 0.0.0.255 mpls-te enable # tunnel-policy policy1 tunnel binding destination 2.2.2.2 te Tunnel1/0/1 tunnel binding destination 3.3.3.3 te Tunnel1/0/2 # bfd master bind pw interface GigabitEthernet1/0/3.10 remote-peer 2.2.2.2 pw-ttl auto-calculate discriminator local 2 discriminator remote 2 commit # return
- Configuration file of SR1
# sysname SR1 # ip vpn-instance vpna ipv4-family route-distinguisher 1:1 vpn frr route-policy vpna vpn-target 1:1 export-extcommunity vpn-target 1:1 import-extcommunity # bfd # mpls lsr-id 2.2.2.2 mpls mpls te mpls rsvp-te mpls rsvp-te hello mpls rsvp-te hello full-gr mpls te cspf # mpls l2vpn # explicit-path to_csg next hop 172.0.1.1 next hop 1.1.1.1 # mpls ldp graceful-restart # # mpls ldp remote-peer 1.1.1.1 remote-ip 1.1.1.1 # interface GigabitEthernet1/0/0 undo shutdown ip address 172.0.2.2 255.255.255.0 vrrp vrid 20 virtual-ip 172.0.2.3 admin-vrrp vrid 20 ignore-if-down vrrp vrid 20 priority 150 mpls mpls ldp # interface GigabitEthernet1/0/1 undo shutdown ip address 172.0.1.2 255.255.255.0 mpls mpls te mpls rsvp-te mpls rsvp-te hello # # interface GigabitEthernet1/0/3 undo shutdown ip address 172.0.3.1 255.255.255.0 mpls mpls ldp # interface GigabitEthernet1/0/4 undo shutdown ip address 172.0.8.1 255.255.255.0 mpls mpls ldp # interface Virtual-Ethernet1/0/0 ve-group 1 l2-terminate # interface Virtual-Ethernet1/0/0.1 mpls l2vc 1.1.1.1 100 tunnel-policy policy1 mpls l2vc track admin-vrrp interface GigabitEthernet1/0/0 vrid 20 pw-redundancy mpls l2vc 3.3.3.3 300 bypass mpls l2vc bypass track admin-vc interface LoopBack1 # interface Virtual-Ethernet1/0/1 ve-group 1 l3-access # interface Virtual-Ethernet1/0/1.1 vlan-type dot1q 10 ip binding vpn-instance vpna ip address 120.0.0.2 255.255.255.0 vrrp vrid 10 virtual-ip 120.0.0.3 vrrp vrid 10 track admin-vrrp interface GigabitEthernet1/0/0 vrid 20 # interface LoopBack0 ip address 2.2.2.2 255.255.255.255 # interface LoopBack1 mpls l2vc 3.3.3.3 400 control-word admin # interface Tunnel1/0/1 ip address unnumbered interface LoopBack0 tunnel-protocol mpls te destination 1.1.1.1 mpls te tunnel-id 100 mpls te record-route mpls te signal-protocol rsvp-te mpls te path explicit-path to_csg mpls te backup hot-standby wtr 15 mpls te reserved-for-binding mpls te commit # bgp 100 graceful-restart peer 3.3.3.3 as-number 100 peer 3.3.3.3 connect-interface LoopBack0 peer 4.4.4.4 as-number 100 peer 4.4.4.4 connect-interface LoopBack0 peer 5.5.5.5 as-number 100 peer 5.5.5.5 connect-interface LoopBack0 # ipv4-family unicast undo synchronization peer 3.3.3.3 enable peer 4.4.4.4 enable peer 5.5.5.5 enable # ipv4-family vpnv4 policy vpn-target peer 3.3.3.3 enable peer 4.4.4.4 enable peer 5.5.5.5 enable # ipv4-family vpn-instance vpna import-route direct # ospf 100 opaque-capability enable graceful-restart area 0.0.0.0 network 2.2.2.2 0.0.0.0 network 172.0.1.0 0.0.0.255 network 172.0.3.0 0.0.0.255 network 172.0.2.0 0.0.0.255 network 172.0.8.0 0.0.0.255 mpls-te enable # route-policy vpna permit node 5 apply backup-nexthop auto # tunnel-policy policy1 tunnel binding destination 1.1.1.1 te Tunnel1/0/1 # bfd bypass bind pw interface LoopBack1 discriminator local 2 discriminator remote 2 commit # return
- Configuration file of SR2
# sysname SR2 # ip vpn-instance vpna ipv4-family route-distinguisher 1:1 vpn frr route-policy vpna vpn-target 1:1 export-extcommunity vpn-target 1:1 import-extcommunity # bfd # mpls lsr-id 3.3.3.3 mpls mpls te mpls rsvp-te mpls rsvp-te hello mpls rsvp-te hello full-gr mpls te cspf # mpls l2vpn # explicit-path to_csg next hop 172.0.4.1 next hop 1.1.1.1 # mpls ldp graceful-restart # # mpls ldp remote-peer 1.1.1.1 remote-ip 1.1.1.1 # interface GigabitEthernet1/0/0 undo shutdown ip address 172.0.2.1 255.255.255.0 vrrp vrid 20 virtual-ip 172.0.2.3 admin-vrrp vrid 20 ignore-if-down mpls mpls ldp # interface GigabitEthernet1/0/1 undo shutdown # interface GigabitEthernet1/0/2 undo shutdown ip address 172.0.4.2 255.255.255.0 mpls mpls te mpls rsvp-te # interface GigabitEthernet1/0/3 undo shutdown ip address 172.0.6.1 255.255.255.0 mpls mpls ldp # interface GigabitEthernet1/0/4 undo shutdown ip address 172.0.7.1 255.255.255.0 mpls mpls ldp # interface Virtual-Ethernet1/0/0 ve-group 1 l2-terminate # interface Virtual-Ethernet1/0/0.1 mpls l2vc 1.1.1.1 200 tunnel-policy policy1 mpls l2vc track admin-vrrp interface GigabitEthernet1/0/0 vrid 20 pw-redundancy mpls l2vc 2.2.2.2 300 bypass mpls l2vc bypass track admin-vc interface LoopBack1 # interface Virtual-Ethernet1/0/1 ve-group 1 l3-access # interface Virtual-Ethernet1/0/1.1 vlan-type dot1q 10 ip binding vpn-instance vpna ip address 120.0.0.4 255.255.255.0 vrrp vrid 10 virtual-ip 120.0.0.3 vrrp vrid 10 track admin-vrrp interface GigabitEthernet1/0/0 vrid 20 # interface LoopBack0 ip address 3.3.3.3 255.255.255.255 # interface LoopBack1 mpls l2vc 2.2.2.2 400 control-word admin # interface Tunnel1/0/2 ip address unnumbered interface LoopBack0 tunnel-protocol mpls te destination 1.1.1.1 mpls te tunnel-id 200 mpls te record-route mpls te signal-protocol rsvp-te mpls te path explicit-path to_csg mpls te backup hot-standby wtr 15 mpls te reserved-for-binding mpls te commit # bgp 100 graceful-restart peer 2.2.2.2 as-number 100 peer 2.2.2.2 connect-interface LoopBack0 peer 4.4.4.4 as-number 100 peer 4.4.4.4 connect-interface LoopBack0 peer 5.5.5.5 as-number 100 peer 5.5.5.5 connect-interface LoopBack0 # ipv4-family unicast undo synchronization peer 2.2.2.2 enable peer 4.4.4.4 enable peer 5.5.5.5 enable # ipv4-family vpnv4 policy vpn-target peer 2.2.2.2 enable peer 4.4.4.4 enable peer 5.5.5.5 enable # ipv4-family vpn-instance vpna import-route direct # ospf 100 opaque-capability enable graceful-restart area 0.0.0.0 network 3.3.3.3 0.0.0.0 network 172.0.2.0 0.0.0.255 network 172.0.7.0 0.0.0.255 network 172.0.4.0 0.0.0.255 network 172.0.6.0 0.0.0.255 mpls-te enable # tunnel-policy policy1 tunnel binding destination 1.1.1.1 te Tunnel1/0/2 # route-policy vpna permit node 5 apply backup-nexthop auto # tunnel-policy policy1 tunnel binding destination 1.1.1.1 te Tunnel1/0/2 # bfd bypass bind pw interface LoopBack1 discriminator local 2 discriminator remote 2 commit # return
- Configuration file of RSG1
# sysname RSG1 # vlan batch 10 # ip vpn-instance vpna ipv4-family route-distinguisher 1:1 vpn frr route-policy vpna vpn-target 1:1 export-extcommunity vpn-target 1:1 import-extcommunity # mpls lsr-id 4.4.4.4 # mpls l2vpn # mpls ldp graceful-restart # interface Vlanif10 ip binding vpn-instance vpna ip address 120.0.1.1 255.255.255.0 vrrp vrid 1 virtual-ip 120.0.1.3 vrrp vrid 1 priority 150 # interface GigabitEthernet1/0/0 portswitch undo shutdown port link-type trunk port trunk allow-pass vlan 10 # interface GigabitEthernet1/0/1 undo shutdown ip address 172.0.3.2 255.255.255.0 mpls mpls ldp # interface GigabitEthernet1/0/2 undo shutdown ip address 172.0.7.2 255.255.255.0 mpls mpls ldp # interface GigabitEthernet1/0/3 portswitch undo shutdown port link-type trunk port trunk allow-pass vlan 10 # interface LoopBack0 ip address 4.4.4.4 255.255.255.255 # bgp 100 graceful-restart peer 2.2.2.2 as-number 100 peer 2.2.2.2 connect-interface LoopBack0 peer 3.3.3.3 as-number 100 peer 3.3.3.3 connect-interface LoopBack0 peer 5.5.5.5 as-number 100 peer 5.5.5.5 connect-interface LoopBack0 # ipv4-family unicast undo synchronization peer 2.2.2.2 enable peer 3.3.3.3 enable peer 5.5.5.5 enable # ipv4-family vpnv4 policy vpn-target peer 2.2.2.2 enable peer 3.3.3.3 enable peer 5.5.5.5 enable # ipv4-family vpn-instance vpna import-route direct # ospf 100 opaque-capability enable graceful-restart area 0.0.0.0 network 4.4.4.4 0.0.0.0 network 172.0.3.0 0.0.0.255 network 172.0.7.0 0.0.0.255 mpls-te enable # route-policy vpna permit node 5 apply backup-nexthop auto # return
- Configuration file of RSG2
# sysname RSG2 # vlan batch 10 # ip vpn-instance vpna ipv4-family route-distinguisher 11 vpn frr route-policy vpna vpn-target 11 export-extcommunity vpn-target 11 import-extcommunity # mpls lsr-id 5.5.5.5 # mpls l2vpn # mpls ldp graceful-restart # interface Vlanif10 ip binding vpn-instance vpna ip address 120.0.1.2 255.255.255.0 vrrp vrid 1 virtual-ip 120.0.1.3 # interface GigabitEthernet1/0/0 portswitch undo shutdown port link-type trunk port trunk allow-pass vlan 10 # interface GigabitEthernet1/0/1 undo shutdown ip address 172.0.6.2 255.255.255.0 mpls mpls ldp # interface GigabitEthernet1/0/2 undo shutdown ip address 172.0.8.2 255.255.255.0 mpls mpls ldp # interface GigabitEthernet1/0/3 portswitch undo shutdown port link-type trunk port trunk allow-pass vlan 10 # interface LoopBack0 ip address 5.5.5.5 255.255.255.255 # bgp 100 graceful-restart peer 2.2.2.2 as-number 100 peer 2.2.2.2 connect-interface LoopBack0 peer 3.3.3.3 as-number 100 peer 3.3.3.3 connect-interface LoopBack0 peer 4.4.4.4 as-number 100 peer 4.4.4.4 connect-interface LoopBack0 # ipv4-family unicast undo synchronization peer 2.2.2.2 enable peer 3.3.3.3 enable peer 4.4.4.4 enable # ipv4-family vpnv4 policy vpn-target peer 2.2.2.2 enable peer 3.3.3.3 enable peer 4.4.4.4 enable # ipv4-family vpn-instance vpna import-route direct # ospf 100 opaque-capability enable graceful-restart area 0.0.0.0 network 5.5.5.5 0.0.0.0 network 172.0.8.0 0.0.0.255 network 172.0.6.0 0.0.0.255 mpls-te enable # route-policy vpna permit node 5 apply backup-nexthop auto # return
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