The configuration of MPLS TE Using Static CR-LSP In MSR Series

The configuration of MPLS TE Using Static CR-LSP In MSR Series

 

 

Keywords:MSR;MPLS TE;CR-LSP

I            Requirement for the diagram

Using static CR-LSP to set up a MPLS tunnel from RTA to RTC.

Device list: 3, MSR Series Router  

CMW Version： Version 5.20, Beta 1106

II          Network topology

Figure 1-1 Using static CR-LSP to set up a MPLS TE Tunnel

III        Steps of configuration

RTA

# //Config basic ability of MPLS TE mpls lsr-id 1.1.1.1 # mpls  mpls te # isis 1  network-entity 00.0005.0000.0000.0001.00 # interface Ethernet0/0  port link-mode route  ip address 2.1.1.1 255.255.255.0  isis enable 1  //Config MPLS TE of this interface  mpls  mpls te   #   interface LoopBack0  ip address 1.1.1.1 255.255.255.255  isis enable 1 # interface Tunnel0  ip address 6.1.1.1 255.255.255.0  tunnel-protocol mpls te  destination 3.3.3.3  mpls te signal-protocol static  mpls te commit #  //Config routing which point to tunnel interface  ip route-static 3.3.3.3 255.255.255.255 Tunnel0 preference 1 #   //Config RouterA as static CR-LSP ingress node  static-cr-lsp ingress Tunnel0 destination 3.3.3.3 nexthop 2.1.1.2 out-label 20   bandwidth bc0 0

RTB

# mpls lsr-id 2.2.2.2 # mpls  mpls te # isis 1  network-entity 00.0005.0000.0000.0002.00 # interface LoopBack0  ip address 2.2.2.2 255.255.255.255  isis enable 1 #              interface GigabitEthernet0/0  port link-mode route  ip address 2.1.1.2 255.255.255.0  isis enable 1  mpls  mpls te # interface GigabitEthernet0/1  port link-mode route  ip address 3.2.1.1 255.255.255.0  isis enable 1  mpls  mpls te #  //Config RouterB as static CR-LSP middle node：  static-cr-lsp transit tunnel0 incoming-interface GigabitEthernet0/0 in-label 20 nexthop 3.2.1.2 out-label 30

RTC

# mpls lsr-id 3.3.3.3 # mpls  mpls te # isis 1  network-entity 00.0005.0000.0000.0003.00 # interface LoopBack0  ip address 3.3.3.3 255.255.255.255  isis enable 1 # interface GigabitEthernet0/1  port link-mode route  ip address 3.2.1.2 255.255.255.0  isis enable 1  mpls  mpls te #  //Config RouterC as static CR-LSP out-going node  static-cr-lsp egress tunnel0 incoming-interface GigabitEthernet0/1 in-label 30

IV       Key notes in the configuration

       1) Using ISIS protocol to connect different device;

2) Config MPLS TE under global view;

3) Config Static CR-LSP;

V         Check Result

       1) Check the tunnel info of MPLS TE:

       [rta]display mpls te tunnel

LSP-Id               Destination    In/Out-If                 Name        

1.1.1.1:0            3.3.3.3        -/Eth0/0                  Tunnel0

 <rtb>display mpls te tunnel

LSP-Id               Destination    In/Out-If                 Name        

-                    -              GE0/0/GE0/1               tunnel0

 <RTC>display mpls te tunnel

LSP-Id               Destination    In/Out-If                 Name        

-                    -              GE0/1/-                   tunnel0     

<RTC>

2) Check the state of tunnel interface:

[rta]display interface Tunnel 0

Tunnel0 current state: UP

Line protocol current state: UP

Description: Tunnel0 Interface

The Maximum Transmit Unit is 64000

Internet Address is 6.1.1.1/24 Primary

Encapsulation is TUNNEL, aggregation ID not set

Tunnel source unknown, destination 3.3.3.3

Tunnel protocol/transport CR_LSP

    Last 300 seconds input: 0 bytes/sec, 0 packets/sec

    Last 300 seconds output: 0 bytes/sec, 0 packets/sec

    0 packets input, 0 bytes

    0 input error

    34 packets output, 2504 bytes

    0 output error

3) Check the routing table of RTA：

       [rta]dis ip rou

             Routing Tables: Public

        Destinations : 10      Routes : 10

 

Destination/Mask   Proto Pre Cost        NextHop        Interface

 

1.1.1.1/32         Direct 0   0           127.0.0.1      InLoop0

2.1.1.0/24         Direct 0   0           2.1.1.1        Eth0/0

2.1.1.1/32         Direct 0   0           127.0.0.1      InLoop0

2.2.2.2/32         ISIS  15  10          2.1.1.2        Eth0/0

3.2.1.0/24         ISIS  15  20          2.1.1.2        Eth0/0

3.3.3.3/32         Static 1   0           6.1.1.1        Tun0

6.1.1.0/24         Direct 0   0           6.1.1.1        Tun0

6.1.1.1/32         Direct 0   0           127.0.0.1      InLoop0

127.0.0.0/8        Direct 0   0           127.0.0.1       InLoop0

127.0.0.1/32       Direct 0   0           127.0.0.1      InLoop0