PCEP RSVP
This chapter describes RSVP configurations requesting path computation from the PCE server.
Topology
PCEP-RSVP topology
Configuration
R1
R1#configure terminal | Enter configure mode. |
R1(config)#interface lo | Enter interface mode. |
R1(config-if)#ip address 1.1.1.1/32 secondary | Configure the IP address of the interface. |
R1(config-if)#ip router isis 1 | Make the interface part of the router ISIS 1 instance. |
R1(config-if)#exit | Exit interface mode. |
R1(config)#router rsvp | Configure RSVP globally. |
R1(config-router)#exit | Exit router RSVP mode. |
(config)# rsvp-trunk to-R3 ipv4 | Configure RSVP trunk with IPv4 address family |
(config-trunk)# to 3.3.3.3 | Tunnel egress IP address |
(config-trunk)# path-option dynamic pce | Configure path option as PCE |
(config-trunk)# pce entity 1 | Assign to the PCE entity 1 |
R1(config)#interface eth1 | Enter interface mode. |
R1(config-if)#ip address 11.1.1.1/24 | Configure the IP address of the interface. |
R1(config-if)#ip router isis 1 | Make the interface part of the router ISIS 1 instance. |
R1(config-if)#isis network point-to-point | Network-type as point-to-point |
R1(config-if)#label-switching | Enable label switching. |
R1(config-if)# enable-rsvp | Enable RSVP on this interface |
R1(config)#interface eth2 | Enter interface mode. |
R1(config-if)#ip address 12.1.1.1/24 | Configure the IP address of the interface. |
R1(config-if)#ip router isis 1 | Make the interface part of the router ISIS 1 instance. |
R1(config-if)#label-switching | Enable label switching. |
R1(config-if)#isis network point-to-point | Network-type as point-to-point |
R1(config-if)# enable-rsvp | Enable RSVP on this interface |
R1(config-if)#exit | Exit interface mode. |
R1(config)#interface eth3 | Enter interface mode. |
R1(config-if)#ip address 20.1.1.1/24 | Configure the IP address of the interface towards PCE |
R1(config-if)#ip router isis 1 | Make the interface part of the router ISIS 1 instance. |
R1(config-if)#label-switching | Enable label switching. |
R1(config-if)#isis network point-to-point | Network type as point-to-point |
R1(config-if)#exit | Exit interface mode. |
R1(config)#router isis 1 | Set the routing process ID . |
R1(config-router)#is-type level-1 | Configure is-type. |
R1(config-router)#distribute bgp-ls | Link State distribution to BGP |
R1(config-router)#metric-style wide level-1 | Configure metric style as wide. |
R1(config-router)# net 49.0001.0000.0000.0011.00 | Configure Network entity title (NET). |
R1(config-router)#mpls traffic-eng router-id 1.1.1.1 | Enable MPLS Traffic Engineering under router process. |
R1(config-router)#mpls traffic-eng level-1 | Enable MPLS Traffic Engineering as level-1. |
R1(config-router)# capability cspf | Enable CSPF capability under ISIS 1 process. |
R1(config-router)#exit | Exit router mode. |
R1(config)# router bgp 100 | Configure router BGP in AS 100 |
R1(config-router)# bgp router-id 1.1.1.1 | Router identifier for BGP |
R1(config-router)# neighbor 33.33.33.33 remote-as 100 | Configure neighbor in remote-as 100 |
R1(config-router)# neighbor 33.33.33.33 update-source lo | Configure neighbor with update-source loopback |
R1(config-router)# address-family link-state link-state | Enter link-state Address family mode |
R1(config-router-af)# neighbor 33.33.33.33 activate | Activate PCE neighbor |
R1(config-router-af)# exit-address-family | Exit from Address Family configuration mode |
R1(config-router)#exit | Exit router mode. |
R1(config)# pce configuration 1 | Configure Path Computation Client with entity 1 |
R1(config-pcep)#capability | Enter capabilities submode |
R1(config-pcep-cap)# pce instantiation | PCE Initiated LSP Instantiation |
R1(config-pcep-cap)# exit-capability | Exit from PCEP Entity Capability mode |
R1(config-pcep)# update-source 1.1.1.1 | Source of routing updates |
R1(config-pcep)# peer-address ipv4 33.33.33.33 | Configure peer address |
R1(config-pcep)# exit | Exit PCEP mode. |
R2
R2#configure terminal | Enter configure mode. |
R2(config)#interface lo | Enter interface mode. |
R2(config-if)#ip address 2.2.2.2/32 secondary | Configure the IP address of the interface. |
R2(config-if)#ip router isis 1 | Make the interface part of the router ISIS 1 instance. |
R2(config-if)#exit | Exit interface mode. |
R2(config)#router rsvp | Configure RSVP globally. |
R2(config-router)#exit | Exit router RSVP mode. |
R2(config)#interface eth1 | Enter interface mode. |
R2(config-if)#ip address 11.1.1.2/24 | Configure the IP address of the interface. |
R2(config-if)#ip router isis 1 | Make the interface part of the router ISIS 1 instance. |
R2(config-if)#isis network point-to-point | Network-type as point-to-point |
R2(config-if)#label-switching | Enable label switching. |
R2(config-if)# enable-rsvp | Enable RSVP on this interface |
R2(config)#interface eth2 | Enter interface mode. |
R2(config-if)#ip address 6.1.1.1/24 | Configure the IP address of the interface. |
R2(config-if)#ip router isis 1 | Make the interface part of the router ISIS 1 instance. |
R2(config-if)#label-switching | Enable label switching. |
R2(config-if)#isis network point-to-point | Network-type as point-to-point |
R2(config-if)# enable-rsvp | Enable RSVP on this interface |
R2(config-if)#exit | Exit interface mode. |
R2(config)#router isis 1 | Set the routing process ID . |
R2(config-router)#is-type level-1 | Configure is-type. |
R2(config-router)#metric-style wide level-1 | Configure metric style as wide. |
R2(config-router)# net 49.0001.0000.0000.0022.00 | Configure Network entity title (NET). |
R2(config-router)#mpls traffic-eng router-id 2.2.2.2 | Enable MPLS Traffic Engineering under router process. |
R2(config-router)#mpls traffic-eng level-1 | Enable MPLS Traffic Engineering as level-1. |
R2(config-router)# capability cspf | Enable CSPF capability under ISIS 1 process. |
R2(config-router)#exit | Exit router mode. |
R3
R3#configure terminal | Enter configure mode. |
R3(config)#interface lo | Enter interface mode. |
R3(config-if)#ip address 3.3.3.3/32 secondary | Configure the IP address of the interface. |
R3(config-if)#ip router isis 1 | Make the interface part of the router ISIS 1 instance. |
R3(config-if)#exit | Exit interface mode. |
R3(config)#router rsvp | Configure RSVP globally. |
R3(config-router)#exit | Exit router RSVP mode. |
R3(config)#interface eth1 | Enter interface mode. |
R3(config-if)#ip address 9.1.1.2/24 | Configure the IP address of the interface. |
R3(config-if)#ip router isis 1 | Make the interface part of the router ISIS 1 instance. |
R3(config-if)#isis network point-to-point | Network-type as point-to-point |
R3(config-if)#label-switching | Enable label switching. |
R3(config-if)# enable-rsvp | Enable RSVP on this interface |
R3(config)#interface eth2 | Enter interface mode. |
R3(config-if)#ip address 6.1.1.2/24 | Configure the IP address of the interface. |
R3(config-if)#ip router isis 1 | Make the interface part of the router ISIS 1 instance. |
R3(config-if)#label-switching | Enable label switching. |
R3(config-if)#isis network point-to-point | Network-type as point-to-point |
R3(config-if)# enable-rsvp | Enable RSVP on this interface |
R3(config-if)#exit | Exit interface mode. |
R3(config)#router isis 1 | Set the routing process ID . |
R3(config-router)#is-type level-1 | Configure is-type. |
R3(config-router)#distribute bgp-ls | Link State distribution to BGP |
R3(config-router)#metric-style wide level-1 | Configure metric style as wide. |
R3(config-router)# net 49.0001.0000.0000.0033.00 | Configure Network entity title (NET). |
R3(config-router)#mpls traffic-eng router-id 3.3.3.3 | Enable MPLS Traffic Engineering under router process. |
R3(config-router)#mpls traffic-eng level-1 | Enable MPLS Traffic Engineering as level-1. |
R3(config-router)# capability cspf | Enable CSPF capability under ISIS 1 process. |
R3(config-router)#exit | Exit router mode. |
R3(config)# pce configuration 1 | Configure Path Computation Client |
R3(config-pcep)#capability | Specify capabilities of entity |
R3(config-pcep-cap)# pce instantiation | PCE Initiated LSP Instantiation |
R3(config-pcep-cap)# exit-capability | Exit from PCEP Entity Capability mode |
R3(config-pcep)# update-source 3.3.3.3 | Source of routing updates |
R3(config-pcep)# peer-address ipv4 33.33.33.33 | Configure peer address |
R3(config-pcep)# exit | Exit PCEP mode. |
R4
R4#configure terminal | Enter configure mode. |
R4(config)#interface lo | Enter interface mode. |
R4(config-if)#ip address 4.4.4.4/32 secondary | Configure the IP address of the interface. |
R4(config-if)#ip router isis 1 | Make the interface part of the router ISIS 1 instance. |
R4(config-if)#exit | Exit interface mode. |
R4(config)#router rsvp | Configure RSVP globally. |
R4(config-router)#exit | Exit router RSVP mode. |
R4(config)#interface eth1 | Enter interface mode. |
R4(config-if)#ip address 9.1.1.1/24 | Configure the IP address of the interface. |
R4(config-if)#ip router isis 1 | Make the interface part of the router ISIS 1 instance. |
R4(config-if)#isis network point-to-point | Network-type as point-to-point |
R4(config-if)# enable-rsvp | Enable RSVP on this interface |
R4(config-if)#label-switching | Enable label switching. |
R4(config)#interface eth2 | Enter interface mode. |
R4(config-if)#ip address 12.1.1.2/24 | Configure the IP address of the interface. |
R4(config-if)#ip router isis 1 | Make the interface part of the router ISIS 1 instance. |
R4(config-if)#label-switching | Enable label switching. |
R4(config-if)#isis network point-to-point | Network-type as point-to-point |
R4(config-if)# enable-rsvp | Enable RSVP on this interface |
R4(config-if)#exit | Exit interface mode. |
R4(config)#router isis 1 | Set the routing process ID . |
R4(config-router)#is-type level-1 | Configure is-type. |
R4(config-router)#metric-style wide level-1 | Configure metric style as wide. |
R4(config-router)# net 49.0001.0000.0000.0044.00 | Configure Network entity title (NET). |
R4(config-router)#mpls traffic-eng router-id 4.4.4.4 | Enable MPLS Traffic Engineering under router process. |
R4(config-router)#mpls traffic-eng level-1 | Enable MPLS Traffic Engineering as level-1. |
R4(config-router)# capability cspf | Enable CSPF capability under ISIS 1 process. |
R4(config-router)#exit | Exit router mode. |
Validation
R1#sho rsvp session
Type : PRI - Primary, SEC - Secondary, DTR - Detour, BPS - Bypass
State : UP - Up, DN - Down, BU - Backup in Use, SU - Secondary in Use, FS - Forced to Secondary
* indicates the session is active with local repair at one or more nodes
(P) indicates the secondary-priority session is acting as primary
Ingress RSVP:
To From Type LSPName State Uptime Rt Style Labelin Labelout DSType
3.3.3.3 1.1.1.1 PRI to-R3-Primary UP 00:02:44 1 1 SE - 24960 DEFAULT
Total 1 displayed, Up 1, Down 0.
R1#sho rsvp session to-R3 primary
Ingress (Primary)
3.3.3.3
From: 1.1.1.1, LSPstate: Up, LSPname: to-R3-Primary
Ingress FSM state: Operational
Establishment Time: 0s 6ms
Setup priority: 7, Hold priority: 0
CSPF usage: Path Computation Element
LSP Re-Optimization: Disabled, Re-Optimization Timer: NA, Cspf Client: NA
IGP-Shortcut: Disabled, LSP metric: 20
LSP Protection: None
Label in: -, Label out: 24960,
Tspec rate: 0, Fspec rate: 0
Policer: Not Configured
Tunnel Id: 5001, LSP Id: 2201, Ext-Tunnel Id: 1.1.1.1
Bind value: 0, Oper state: NA, Alloc mode: NA
Downstream: 12.1.1.2, eth2
Path refresh: 30 seconds (RR enabled) (due in 29830 seconds)
Resv lifetime: 157 seconds (due in 154 seconds)
Retry count: 0, intrvl: 30 seconds
RRO re-use as ERO: Disabled
Label Recording: Disabled
Admin Groups: none
Configured Path: none
Session Explicit Route Detail :
12.1.1.2/32 strict
9.1.1.2/32 strict
Record route:
-------------------------------------------------------------
IP Address Label
-------------------------------------------------------------
<self>
12.1.1.2
9.1.1.2
Style: Shared Explicit Filter
Traffic type: controlled-load
Minimum Path MTU: 1500
Last Recorded Error Code: None
Last Recorded Error Value: None
Node where Last Recorded Error originated: None
Trunk Type: mpls