H3C Technologies H3C S7500E Series Switches - Manual (Page 143)

3-61
traceroute to 3.3.3.9(3.3.3.9) 30 hops max,40 bytes packet
1 30.1.1.2 28 ms 27 ms 23 ms
2 40.1.1.2 50 ms 50 ms 49 ms
Perform the display mpls te tunnel command on Switch A. You can find that only the tunnel
traversing Switch D is present:
[SwitchA] display mpls te tunnel
LSP-Id Destination In/Out-If Name
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.
FRR Configuration Example
Network requirements
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.