H3C Technologies H3C SR8800 - Manual (Page 131)

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NOTE:
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
[RouterA] ip route-static 20.1.1.2 24 tunnel 4 preference 1
Perform the display ip routing-table command on Router A. You can find a static route entry with
interface Tunnel4 as the outgoing interface.
FRR configuration example
Network requirements
On a primary LSP Router A Router B Router C → → → Router D, use FRR to protect the link Router B →
Router C.
Do the following:
• Create a bypass LSP that traverses the path Router B Router E Router C. Router B is the PLR and → →
Router C is the MP.
• Explicitly route the primary TE tunnel and the bypass TE tunnel with the signaling protocol being
RSVP-TE.
Figure 31 Network diagram
Device Interface IP address Device Interface IP address
Router A Loop0 1.1.1.1/32 Router E Loop0 5.5.5.5/32
GE 3/1/1 2.1.1.1/24 POS 2/1/1 3.2.1.2/24
Router B Loop0 2.2.2.2/32 POS 2/1/2 3.3.1.1/24
GE 3/1/1 2.1.1.2/24 Router C Loop0 3.3.3.3/32
GE 3/1/2 3.1.1.1/24 GE 3/1/1 4.1.1.1/24
POS 2/1/1 3.2.1.1/24 GE 3/1/2 3.1.1.2/24
Router D Loop0 4.4.4.4/32 POS 2/1/1 3.3.1.2/24
GE 3/1/1 4.1.1.2/24