Example for Configuring Dynamic Bandwidth for a Hot-standby CR-LSP
Networking Requirements
Figure 4-56 shows an MPLS VPN. A TE tunnel with LSRA as the ingress node and LSRC as the egress node needs to be established on LSRA. A hot-standby CR-LSP and best-effort path also need to be configured.
The path of the primary CR-LSP is LSRA -> LSRB -> LSRC.
The path of the backup CR-LSP is LSRA -> LSRD -> LSRC.
The best-effort path is LSRA -> LSRD -> LSRB -> LSRC.
When the primary CR-LSP fails, traffic switches to the backup CR-LSP. After the primary CR-LSP recovers, traffic switches back to the primary CR-LSP in 15 seconds. If both the primary CR-LSP and backup CR-LSP fail, traffic switches to the best-effort path.
If a hot-standby CR-LSP is configured, customer's bandwidth use efficiency is reduced and costs increase. This is because bandwidth occupied by the hot-standby CR-LSP is only used during traffic switching.
You can configure dynamic bandwidth for a hot-standby CR-LSP on the ingress node to solve the problem.
When the primary CR-LSP works properly, the hot-standby CR-LSP does not occupy bandwidth, saving bandwidth resources.
When the primary CR-LSP fails, traffic is switched to the hot-standby CR-LSP and forwarded in a best-effort manner. The system then sets up a new CR-LSP with user-requested bandwidth according to the make-before-break mechanism. After the new hot-standby CR-LSP has been successfully established, the ingress node switches traffic to this CR-LSP and tears down the hot-standby CR-LSP with 0 bit/s bandwidth.
Configuration Roadmap
The configuration roadmap is as follows:
Assign an IP address to each interface and configure OSPF to ensure that there are reachable routes between LSRs.
Configure an ID for each LSR and globally enable MPLS, MPLS TE, RSVP-TE, CSPF on each node and interface, and enable OSPF TE.
Specify explicit paths for the primary and backup CR-LSPs on LSRA.
Create a tunnel interface with LSRC as the egress node on LSRA, specify an explicit path, configure the hot-standby CR-LSP and best-effort path, and set the WTR time to 15 seconds.
Enable dynamic bandwidth for a hot-standby CR-LSP on the ingress node.
Procedure
- Assign an IP address to each interface and configure OSPF.
# Configure LSRA. The configurations of LSRB, LSRC, and LSRD are similar to the configuration of LSRA, and are not mentioned here.
<Huawei> system-view [Huawei] sysname LSRA [LSRA] interface gigabitethernet 1/0/0 [LSRA-GigabitEthernet1/0/0] ip address 172.1.1.1 255.255.255.0 [LSRA-GigabitEthernet1/0/0] quit [LSRA] interface gigabitethernet 2/0/0 [LSRA-GigabitEthernet2/0/0] ip address 172.5.1.1 255.255.255.0 [LSRA-GigabitEthernet2/0/0] quit [LSRA] interface loopback 1 [LSRA-LoopBack1] ip address 1.1.1.9 255.255.255.255 [LSRA-LoopBack1] quit [LSRA] ospf 1 [LSRA-ospf-1] area 0 [LSRA-ospf-1-area-0.0.0.0] network 1.1.1.9 0.0.0.0 [LSRA-ospf-1-area-0.0.0.0] network 172.1.1.0 0.0.0.255 [LSRA-ospf-1-area-0.0.0.0] network 172.5.1.0 0.0.0.255 [LSRA-ospf-1-area-0.0.0.0] quit [LSRA-ospf-1] quit
After the configurations are complete, run the display ip routing-table command on each LSR. You can see that the LSRs learn the routes to Loopback1 of each other.
- Configure basic MPLS functions and enable MPLS TE, RSVP-TE,
and CSPF.
On each node, enable MPLS TE and RSVP-TE in the MPLS view and in the interface view. Enable CSPF on the ingress node, and set the maximum reservable bandwidth and BC0 bandwidth to 100 Mbit/s on each outbound interface of each LSR along the primary and hot-standby CR-LSPs.
# Configure LSRA. The configurations of LSRB, LSRC, and LSRD are similar to the configuration of LSRA, and are not mentioned here. CSPF only needs to be configured on the ingress nodes of the primary tunnel and bypass tunnel. That is, CSPF needs to be enabled on only LSRA. Bandwidth configurations only need to be performed on GE2/0/0 of LSRB and GE1/0/0 of LSRD.
[LSRA] mpls lsr-id 1.1.1.9 [LSRA] mpls [LSRA-mpls] mpls te [LSRA-mpls] mpls rsvp-te [LSRA-mpls] mpls te cspf [LSRA-mpls] quit [LSRA] interface gigabitethernet 1/0/0 [LSRA-GigabitEthernet1/0/0] mpls [LSRA-GigabitEthernet1/0/0] mpls te [LSRA-GigabitEthernet1/0/0] mpls rsvp-te [LSRA-GigabitEthernet1/0/0] mpls te bandwidth max-reservable-bandwidth 100000 [LSRA-GigabitEthernet1/0/0] mpls te bandwidth bc0 100000 [LSRA-GigabitEthernet1/0/0] quit [LSRA] interface gigabitethernet 2/0/0 [LSRA-GigabitEthernet2/0/0] mpls [LSRA-GigabitEthernet2/0/0] mpls te [LSRA-GigabitEthernet2/0/0] mpls rsvp-te [LSRA-GigabitEthernet2/0/0] mpls te bandwidth max-reservable-bandwidth 100000 [LSRA-GigabitEthernet2/0/0] mpls te bandwidth bc0 100000 [LSRA-GigabitEthernet2/0/0] quit
- Configure OSPF TE.
# Configure LSRA. The configurations of LSRB, LSRC, and LSRD are similar to the configuration of LSRA, and are not mentioned here.
[LSRA] ospf [LSRA-ospf-1] opaque-capability enable [LSRA-ospf-1] area 0 [LSRA-ospf-1-area-0.0.0.0] mpls-te enable [LSRA-ospf-1-area-0.0.0.0] quit [LSRA-ospf-1] quit
- Configure the explicit paths for the primary and backup
CR-LSPs.
# Configure the explicit path of the primary CR-LSP on LSRA.
[LSRA] explicit-path pri-path [LSRA-explicit-path-pri-path] next hop 172.1.1.2 [LSRA-explicit-path-pri-path] next hop 172.2.1.2 [LSRA-explicit-path-pri-path] next hop 3.3.3.9 [LSRA-explicit-path-pri-path] quit
# Configure the explicit path of the backup CR-LSP on LSRA.
[LSRA] explicit-path backup-path [LSRA-explicit-path-backup-path] next hop 172.5.1.2 [LSRA-explicit-path-backup-path] next hop 172.3.1.1 [LSRA-explicit-path-backup-path] next hop 3.3.3.9 [LSRA-explicit-path-backup-path] quit
After the configurations are complete, you can view explicit paths through commands.
[LSRA] display explicit-path pri-path Path Name : pri-path Path Status : Enabled 1 172.1.1.2 Strict Include 2 172.2.1.2 Strict Include 3 3.3.3.9 Strict Include [LSRA] display explicit-path backup-path Path Name : backup-path Path Status : Enabled 1 172.5.1.2 Strict Include 2 172.3.1.1 Strict Include 3 3.3.3.9 Strict Include
- Configure a tunnel interface.
# Configure a tunnel interface on LSRA, specify an explicit path, and set the CT0 bandwidth to 10 Mbit/s.
[LSRA] interface tunnel 0/0/1 [LSRA-Tunnel0/0/1] ip address unnumbered interface loopback 1 [LSRA-Tunnel0/0/1] tunnel-protocol mpls te [LSRA-Tunnel0/0/1] destination 3.3.3.9 [LSRA-Tunnel0/0/1] mpls te tunnel-id 100 [LSRA-Tunnel0/0/1] mpls te path explicit-path pri-path [LSRA-Tunnel0/0/1] mpls te bandwidth ct0 10000
# Configure CR-LSP hot standby on the tunnel interface, set the WTR time to 15 seconds, specify an explicit path, and configure the best-effort path.
[LSRA-Tunnel0/0/1] mpls te backup hot-standby wtr 15 [LSRA-Tunnel0/0/1] mpls te path explicit-path backup-path secondary [LSRA-Tunnel0/0/1] mpls te backup ordinary best-effort [LSRA-Tunnel0/0/1] mpls te commit [LSRA-Tunnel0/0/1] quit
After the configurations are complete, run the display mpls te tunnel-interface tunnel 0/0/1 command on LSRA. You can see that the primary and backup CR-LSPs are successfully established.
[LSRA] display mpls te tunnel-interface tunnel 0/0/1 ---------------------------------------------------------------- Tunnel0/0/1 ---------------------------------------------------------------- Tunnel State Desc : UP Active LSP : Primary LSP Session ID : 100 Ingress LSR ID : 1.1.1.9 Egress LSR ID: 3.3.3.9 Admin State : UP Oper State : UP Primary LSP State : UP Main LSP State : READY LSP ID : 18 Hot-Standby LSP State : UP Main LSP State : READY LSP ID : 32799
Run the display mpls te hot-standby state interface tunnel 0/0/1 command on LSRA to view CR-LSP hot standby information.
[LSRA] display mpls te hot-standby state interface Tunnel 0/0/1 --------------------------------------------------------------------- Verbose information about the Tunnel0/0/1 hot-standby state --------------------------------------------------------------------- session id : 100 main LSP token : 0x1d hot-standby LSP token : 0x1e HSB switch result : Primary LSP HSB switch reason : - WTR config time : 15s WTR remain time : - using overlapped path : no
- Configure dynamic bandwidth for a hot-standby CR-LSP.
# Configure LSRA.
[LSRA] interface tunnel 0/0/1 [LSRA-Tunnel0/0/1] mpls te backup hot-standby dynamic-bandwidth [LSRA-Tunnel0/0/1] mpls te commit [LSRA-Tunnel0/0/1] quit
- Verify the configuration.
# After the configurations are complete, run the display mpls te tunnel verbose and display mpls te link-administration bandwidth-allocation commands on LSRA. You can see that the hot-standby CR-LSP does not occupy bandwidth.
[LSRA] display mpls te tunnel verbose No : 1 Tunnel-Name : Tunnel0/0/1 Tunnel Interface Name : Tunnel0/0/1 TunnelIndex : 1 LSP Index : 2050 Session ID : 100 LSP ID : 18 LSR Role : Ingress LSP Type : Primary Ingress LSR ID : 1.1.1.9 Egress LSR ID : 3.3.3.9 In-Interface : - Out-Interface : GE1/0/0 Sign-Protocol : RSVP TE Resv Style : SE IncludeAnyAff : 0x0 ExcludeAnyAff : 0x0 IncludeAllAff : 0x0 LspConstraint : - ER-Hop Table Index : 1 AR-Hop Table Index: 0 C-Hop Table Index : 2 PrevTunnelIndexInSession: 3 NextTunnelIndexInSession: - PSB Handle : 17444 Created Time : 2013/02/28 18:18:31 RSVP LSP Type : - -------------------------------- DS-TE Information -------------------------------- Bandwidth Reserved Flag : Reserved CT0 Bandwidth(Kbit/sec) : 10000 CT1 Bandwidth(Kbit/sec): 0 CT2 Bandwidth(Kbit/sec) : 0 CT3 Bandwidth(Kbit/sec): 0 CT4 Bandwidth(Kbit/sec) : 0 CT5 Bandwidth(Kbit/sec): 0 CT6 Bandwidth(Kbit/sec) : 0 CT7 Bandwidth(Kbit/sec): 0 Setup-Priority : 7 Hold-Priority : 7 -------------------------------- FRR Information -------------------------------- Primary LSP Info TE Attribute Flag : 0x3 Protected Flag : 0x0 Bypass In Use : Not Exists Bypass Tunnel Id : - BypassTunnel : - Bypass LSP ID : - FrrNextHop : - ReferAutoBypassHandle : - FrrPrevTunnelTableIndex : - FrrNextTunnelTableIndex: - Bypass Attribute(Not configured) Setup Priority : - Hold Priority : - HopLimit : - Bandwidth : - IncludeAnyGroup : - ExcludeAnyGroup : - IncludeAllGroup : - Bypass Unbound Bandwidth Info(Kbit/sec) CT0 Unbound Bandwidth : - CT1 Unbound Bandwidth: - CT2 Unbound Bandwidth : - CT3 Unbound Bandwidth: - CT4 Unbound Bandwidth : - CT5 Unbound Bandwidth: - CT6 Unbound Bandwidth : - CT7 Unbound Bandwidth: - -------------------------------- BFD Information -------------------------------- NextSessionTunnelIndex : - PrevSessionTunnelIndex: - NextLspId : - PrevLspId : - No : 2 Tunnel-Name : Tunnel0/0/1 Tunnel Interface Name : Tunnel0/0/1 TunnelIndex : 3 LSP Index : 2048 Session ID : 100 LSP ID : 32801 LSR Role : Ingress LSP Type : Hot-Standby Ingress LSR ID : 1.1.1.9 Egress LSR ID : 3.3.3.9 In-Interface : - Out-Interface : GE2/0/0 Sign-Protocol : RSVP TE Resv Style : SE IncludeAnyAff : 0x0 ExcludeAnyAff : 0x0 IncludeAllAff : 0x0 LspConstraint : - ER-Hop Table Index : 2 AR-Hop Table Index: 3 C-Hop Table Index : 0 PrevTunnelIndexInSession: - NextTunnelIndexInSession: 1 PSB Handle : 17446 Created Time : 2013/02/28 18:27:32 RSVP LSP Type : - -------------------------------- DS-TE Information -------------------------------- Bandwidth Reserved Flag : Unreserved CT0 Bandwidth(Kbit/sec) : 0 CT1 Bandwidth(Kbit/sec): 0 CT2 Bandwidth(Kbit/sec) : 0 CT3 Bandwidth(Kbit/sec): 0 CT4 Bandwidth(Kbit/sec) : 0 CT5 Bandwidth(Kbit/sec): 0 CT6 Bandwidth(Kbit/sec) : 0 CT7 Bandwidth(Kbit/sec): 0 Setup-Priority : 7 Hold-Priority : 7 -------------------------------- FRR Information -------------------------------- Primary LSP Info TE Attribute Flag : 0x3 Protected Flag : 0x0 Bypass In Use : Not Exists Bypass Tunnel Id : - BypassTunnel : - Bypass LSP ID : - FrrNextHop : - ReferAutoBypassHandle : - FrrPrevTunnelTableIndex : - FrrNextTunnelTableIndex: - Bypass Attribute(Not configured) Setup Priority : - Hold Priority : - HopLimit : - Bandwidth : - IncludeAnyGroup : - ExcludeAnyGroup : - IncludeAllGroup : - Bypass Unbound Bandwidth Info(Kbit/sec) CT0 Unbound Bandwidth : - CT1 Unbound Bandwidth: - CT2 Unbound Bandwidth : - CT3 Unbound Bandwidth: - CT4 Unbound Bandwidth : - CT5 Unbound Bandwidth: - CT6 Unbound Bandwidth : - CT7 Unbound Bandwidth: - -------------------------------- BFD Information -------------------------------- NextSessionTunnelIndex : - PrevSessionTunnelIndex: - NextLspId : - PrevLspId : -[LSRA] display mpls te link-administration bandwidth-allocation Link ID: GigabitEthernet1/0/0 Bandwidth Constraint Model : Russian Dolls Model (RDM) Physical Link Bandwidth(Kbits/sec) : 1000000 Maximum Link Reservable Bandwidth(Kbits/sec): 100000 Reservable Bandwidth BC0(Kbits/sec) : 100000 Reservable Bandwidth BC1(Kbits/sec) : 0 Downstream Bandwidth (Kbits/sec) : 10000 IPUpdown Link Status : UP PhysicalUpdown Link Status : UP GracefulUpdown Link Status : DOWN ---------------------------------------------------------------------- TE-CLASS CT PRIORITY BW RESERVED BW AVAILABLE DOWNSTREAM (Kbit/sec) (Kbit/sec) RSVPLSPNODE COUNT ---------------------------------------------------------------------- 0 0 0 0 100000 0 1 0 1 0 100000 0 2 0 2 0 100000 0 3 0 3 0 100000 0 4 0 4 0 100000 0 5 0 5 0 100000 0 6 0 6 0 100000 0 7 0 7 10000 90000 1 8 1 0 0 0 0 9 1 1 0 0 0 10 1 2 0 0 0 11 1 3 0 0 0 12 1 4 0 0 0 13 1 5 0 0 0 14 1 6 0 0 0 15 1 7 0 0 0 ---------------------------------------------------------------------- Link ID: GigabitEthernet2/0/0 Bandwidth Constraint Model : Russian Dolls Model (RDM) Physical Link Bandwidth(Kbits/sec) : 1000000 Maximum Link Reservable Bandwidth(Kbits/sec): 100000 Reservable Bandwidth BC0(Kbits/sec) : 100000 Reservable Bandwidth BC1(Kbits/sec) : 0 Downstream Bandwidth (Kbits/sec) : 0 IPUpdown Link Status : UP PhysicalUpdown Link Status : UP GracefulUpdown Link Status : DOWN ---------------------------------------------------------------------- TE-CLASS CT PRIORITY BW RESERVED BW AVAILABLE DOWNSTREAM (Kbit/sec) (Kbit/sec) RSVPLSPNODE COUNT ---------------------------------------------------------------------- 0 0 0 0 100000 0 1 0 1 0 100000 0 2 0 2 0 100000 0 3 0 3 0 100000 0 4 0 4 0 100000 0 5 0 5 0 100000 0 6 0 6 0 100000 0 7 0 7 0 100000 0 8 1 0 0 0 0 9 1 1 0 0 0 10 1 2 0 0 0 11 1 3 0 0 0 12 1 4 0 0 0 13 1 5 0 0 0 14 1 6 0 0 0 15 1 7 0 0 0 ----------------------------------------------------------------------
# Run the shutdown command on GE1/0/0 of LSRA to simulate a fault on the primary CR-LSP.
[LSRA] interface gigabitethernet 1/0/0 [LSRA-GigabitEthernet1/0/0] shutdown [LSRA-GigabitEthernet1/0/0] quit
# Run the display mpls te tunnel-interface tunnel 0/0/1 command on LSRA. You can see that the hot-standby CR-LSP is reestablished and traffic is switched to the hot-standby CR-LSP after the primary CR-LSP fails.
[LSRA] display mpls te tunnel-interface tunnel 0/0/1 ---------------------------------------------------------------- Tunnel0/0/1 ---------------------------------------------------------------- Tunnel State Desc : UP Active LSP : Hot-Standby LSP Session ID : 100 Ingress LSR ID : 1.1.1.9 Egress LSR ID: 3.3.3.9 Admin State : UP Oper State : UP Primary LSP State : DOWN Main LSP State : SETTING UP Hot-Standby LSP State : GRACEFUL SWITCH Main LSP State : READY LSP ID : 32801 Modify LSP State : READY
# After the hot-standby CR-LSP is reestablished, run the display mpls te tunnel verbose and display mpls te link-administration bandwidth-allocation commands on LSRA. You can see that the hot-standby CR-LSP starts to occupy bandwidth.
[LSRA] display mpls te tunnel verbose No : 1 Tunnel-Name : Tunnel0/0/1 Tunnel Interface Name : Tunnel0/0/1 TunnelIndex : 1 LSP Index : 2049 Session ID : 100 LSP ID : 32802 LSR Role : Ingress LSP Type : Hot-Standby Ingress LSR ID : 1.1.1.9 Egress LSR ID : 3.3.3.9 In-Interface : - Out-Interface : GE2/0/0 Sign-Protocol : RSVP TE Resv Style : SE IncludeAnyAff : 0x0 ExcludeAnyAff : 0x0 IncludeAllAff : 0x0 LspConstraint : - ER-Hop Table Index : 2 AR-Hop Table Index: 0 C-Hop Table Index : 2 PrevTunnelIndexInSession: - NextTunnelIndexInSession: - PSB Handle : 17447 Created Time : 2013/02/28 18:44:53 RSVP LSP Type : - -------------------------------- DS-TE Information -------------------------------- Bandwidth Reserved Flag : Reserved CT0 Bandwidth(Kbit/sec) : 10000 CT1 Bandwidth(Kbit/sec): 0 CT2 Bandwidth(Kbit/sec) : 0 CT3 Bandwidth(Kbit/sec): 0 CT4 Bandwidth(Kbit/sec) : 0 CT5 Bandwidth(Kbit/sec): 0 CT6 Bandwidth(Kbit/sec) : 0 CT7 Bandwidth(Kbit/sec): 0 Setup-Priority : 7 Hold-Priority : 7 -------------------------------- FRR Information -------------------------------- Primary LSP Info TE Attribute Flag : 0x3 Protected Flag : 0x0 Bypass In Use : Not Exists Bypass Tunnel Id : - BypassTunnel : - Bypass LSP ID : - FrrNextHop : - ReferAutoBypassHandle : - FrrPrevTunnelTableIndex : - FrrNextTunnelTableIndex: - Bypass Attribute(Not configured) Setup Priority : - Hold Priority : - HopLimit : - Bandwidth : - IncludeAnyGroup : - ExcludeAnyGroup : - IncludeAllGroup : - Bypass Unbound Bandwidth Info(Kbit/sec) CT0 Unbound Bandwidth : - CT1 Unbound Bandwidth: - CT2 Unbound Bandwidth : - CT3 Unbound Bandwidth: - CT4 Unbound Bandwidth : - CT5 Unbound Bandwidth: - CT6 Unbound Bandwidth : - CT7 Unbound Bandwidth: - -------------------------------- BFD Information -------------------------------- NextSessionTunnelIndex : - PrevSessionTunnelIndex: - NextLspId : - PrevLspId : -[LSRA] display mpls te link-administration bandwidth-allocation Link ID: GigabitEthernet1/0/0 Bandwidth Constraint Model : Russian Dolls Model (RDM) Physical Link Bandwidth(Kbits/sec) : 1000000 Maximum Link Reservable Bandwidth(Kbits/sec): 100000 Reservable Bandwidth BC0(Kbits/sec) : 100000 Reservable Bandwidth BC1(Kbits/sec) : 0 Downstream Bandwidth (Kbits/sec) : 0 IPUpdown Link Status : DOWN PhysicalUpdown Link Status : DOWN GracefulUpdown Link Status : DOWN ---------------------------------------------------------------------- TE-CLASS CT PRIORITY BW RESERVED BW AVAILABLE DOWNSTREAM (Kbit/sec) (Kbit/sec) RSVPLSPNODE COUNT ---------------------------------------------------------------------- 0 0 0 0 100000 0 1 0 1 0 100000 0 2 0 2 0 100000 0 3 0 3 0 100000 0 4 0 4 0 100000 0 5 0 5 0 100000 0 6 0 6 0 100000 0 7 0 7 0 100000 0 8 1 0 0 0 0 9 1 1 0 0 0 10 1 2 0 0 0 11 1 3 0 0 0 12 1 4 0 0 0 13 1 5 0 0 0 14 1 6 0 0 0 15 1 7 0 0 0 ---------------------------------------------------------------------- Link ID: GigabitEthernet2/0/0 Bandwidth Constraint Model : Russian Dolls Model (RDM) Physical Link Bandwidth(Kbits/sec) : 1000000 Maximum Link Reservable Bandwidth(Kbits/sec): 100000 Reservable Bandwidth BC0(Kbits/sec) : 100000 Reservable Bandwidth BC1(Kbits/sec) : 0 Downstream Bandwidth (Kbits/sec) : 10000 IPUpdown Link Status : UP PhysicalUpdown Link Status : UP GracefulUpdown Link Status : DOWN ---------------------------------------------------------------------- TE-CLASS CT PRIORITY BW RESERVED BW AVAILABLE DOWNSTREAM (Kbit/sec) (Kbit/sec) RSVPLSPNODE COUNT ---------------------------------------------------------------------- 0 0 0 0 100000 0 1 0 1 0 100000 0 2 0 2 0 100000 0 3 0 3 0 100000 0 4 0 4 0 100000 0 5 0 5 0 100000 0 6 0 6 0 100000 0 7 0 7 10000 90000 1 8 1 0 0 0 0 9 1 1 0 0 0 10 1 2 0 0 0 11 1 3 0 0 0 12 1 4 0 0 0 13 1 5 0 0 0 14 1 6 0 0 0 15 1 7 0 0 0 ----------------------------------------------------------------------
Configuration Files
LSRA configuration file
# sysname LSRA # mpls lsr-id 1.1.1.9 mpls mpls te mpls rsvp-te mpls te cspf # explicit-path backup-path next hop 172.5.1.2 next hop 172.3.1.1 next hop 3.3.3.9 # explicit-path pri-path next hop 172.1.1.2 next hop 172.2.1.2 next hop 3.3.3.9 # interface GigabitEthernet1/0/0 ip address 172.1.1.1 255.255.255.0 mpls mpls te mpls te bandwidth max-reservable-bandwidth 100000 mpls te bandwidth bc0 100000 mpls rsvp-te # interface GigabitEthernet2/0/0 ip address 172.5.1.1 255.255.255.0 mpls mpls te mpls te bandwidth max-reservable-bandwidth 100000 mpls te bandwidth bc0 100000 mpls rsvp-te # interface LoopBack1 ip address 1.1.1.9 255.255.255.255 # interface Tunnel0/0/1 ip address unnumbered interface LoopBack1 tunnel-protocol mpls te destination 3.3.3.9 mpls te tunnel-id 100 mpls te record-route mpls te bandwidth ct0 10000 mpls te path explicit-path pri-path mpls te path explicit-path backup-path secondary mpls te backup hot-standby mode revertive wtr 15 dynamic-bandwidth mpls te backup ordinary best-effort mpls te commit # ospf 1 opaque-capability enable area 0.0.0.0 network 1.1.1.9 0.0.0.0 network 172.1.1.0 0.0.0.255 network 172.5.1.0 0.0.0.255 mpls-te enable # returnLSRB configuration file
# sysname LSRB # mpls lsr-id 2.2.2.9 mpls mpls te mpls rsvp-te # interface GigabitEthernet1/0/0 ip address 172.1.1.2 255.255.255.0 mpls mpls te mpls rsvp-te # interface GigabitEthernet2/0/0 ip address 172.2.1.1 255.255.255.0 mpls mpls te mpls te bandwidth max-reservable-bandwidth 100000 mpls te bandwidth bc0 100000 mpls rsvp-te # interface GigabitEthernet3/0/0 ip address 172.4.1.1 255.255.255.0 mpls mpls te mpls rsvp-te # interface LoopBack1 ip address 2.2.2.9 255.255.255.255 # ospf 1 opaque-capability enable area 0.0.0.0 network 2.2.2.9 0.0.0.0 network 172.1.1.0 0.0.0.255 network 172.2.1.0 0.0.0.255 network 172.4.1.0 0.0.0.255 mpls-te enable # return
LSRC configuration file
# sysname LSRC # mpls lsr-id 3.3.3.9 mpls mpls te mpls rsvp-te # interface GigabitEthernet1/0/0 ip address 172.3.1.1 255.255.255.0 mpls mpls te mpls rsvp-te # interface GigabitEthernet2/0/0 ip address 172.2.1.2 255.255.255.0 mpls mpls te mpls rsvp-te # interface LoopBack1 ip address 3.3.3.9 255.255.255.255 # ospf 1 opaque-capability enable area 0.0.0.0 network 3.3.3.9 0.0.0.0 network 172.2.1.0 0.0.0.255 network 172.3.1.0 0.0.0.255 mpls-te enable # return
LSRD configuration file
# sysname LSRD # mpls lsr-id 4.4.4.9 mpls mpls te mpls rsvp-te # interface GigabitEthernet1/0/0 ip address 172.3.1.2 255.255.255.0 mpls mpls te mpls te bandwidth max-reservable-bandwidth 100000 mpls te bandwidth bc0 100000 mpls rsvp-te # interface GigabitEthernet2/0/0 ip address 172.5.1.2 255.255.255.0 mpls mpls te mpls rsvp-te # interface GigabitEthernet3/0/0 ip address 172.4.1.2 255.255.255.0 mpls mpls te mpls rsvp-te # interface LoopBack1 ip address 4.4.4.9 255.255.255.255 # ospf 1 opaque-capability enable area 0.0.0.0 network 4.4.4.9 0.0.0.0 network 172.3.1.0 0.0.0.255 network 172.4.1.0 0.0.0.255 network 172.5.1.0 0.0.0.255 mpls-te enable # return