Инструкции По Установке для 3com S7906E

 

1-56 

1.1.1.9:2054      3.3.3.9         -/Vlan4                Tunnel1 

 

Configuring ordinary CR-LSP backup is almost the same as configuring hot CR-LSP backup except that 
you need to replace the mpls te backup hot-standby command with the mpls te backup ordinary 
command. Unlike in hot CR-LSP backup where a secondary tunnel is created immediately upon 
creation of a primary tunnel, in ordinary CR-LSP backup, a secondary CR-LSP is created only after the 
primary LSP goes down.  

 

6)  Create a static route for routing MPLS TE tunnel traffic 

[SwitchA] ip route-static 20.1.1.2 24 tunnel 3 preference 1 

Perform the display ip routing-table command on Switch A. You can find a static route entry with 
Tunnel1 as the outgoing interface. 

On a primary LSP Switch A → Switch B → Switch C → Switch D, use FRR to protect the link Switch B → 
Switch C and use BFD to detect the status of link Switch B→Switch C. 

Do the following:  

z

 

Create a bypass LSP that traverses the path Switch B → Switch E → Switch C. Switch B is the PLR 
and Switch C is the MP.  

z

 

Explicitly route the primary TE tunnel and the bypass TE tunnel with the signaling protocol being 
RSVP-TE.  

Link protection using the FRR approach  

Switch A

Switch B

Switch C

Switch D

Switch E

Vlan-int1

Loop0

Loop0

Loop0

Loop0

Vlan-int1

Vlan-int2

Vlan-int2

Vlan-int3

Vlan-int3

Vlan-int4

Vlan-int4

Primary LSP

Bypass LSP

Vlan-int5

Vlan-int5

Loop0

 

Device  Interface IP 

address 

Device  Interface IP 

address 

Switch A 

Loop0 

1.1.1.1/32 

Switch E 

Loop0 

5.5.5.5/32 

 

Vlan-int1 2.1.1.1/24 

 

Vlan-int4 3.2.1.2/24 

Switch B 

Loop0 

2.2.2.2/32 

 

Vlan-int5 

3.3.1.1/24 

 Vlan-int1 

2.1.1.2/24 

Switch C 

Loop0 

3.3.3.3/32 

 

Vlan-int2 3.1.1.1/24 

 

Vlan-int3 4.1.1.1/24 

 

Vlan-int4 3.2.1.1/24 

 

Vlan-int2 3.1.1.2/24 

Switch D 

Loop0 

4.4.4.4/32 

 Vlan-int5 

3.3.1.2/24