Auto Frr Configuration Example - HP FlexNetwork 10500 Series Configuration Manual

# On the PLR, configure the interval for selecting an optimal bypass tunnel as 5 seconds.
[SwitchB] mpls te
[SwitchB-te] fast-reroute timer 5
[SwitchB-te] quit
# On the PLR, bring up the protected interface VLAN-interface 2.
[SwitchB] interface vlan-interface 2
[SwitchB-Vlan-interface2] undo shutdown
# Execute the display interface tunnel 4 command on Switch A to display information about the
primary CRLSP. The output shows that the tunnel interface is in up state. (Details not shown.)
# Wait for about 5 seconds, execute the display mpls lsp verbose command on Switch B. The
output shows that Tunnel 5 is bound to interface VLAN-interface 2 but not in use. (Details not
shown.)
# Execute the display ip routing-table command on Switch A. The output shows a static route entry
with interface Tunnel 4 as the output interface. (Details not shown.)

Auto FRR configuration example

Network requirements
Use RSVP-TE to set up a primary CRLSP that explicitly uses path Switch A—Switch B—Switch
C—Switch D.
Configure auto FRR on Switch B to automatically set up bypass tunnels for the primary CRLSP.
Configure BFD for RSVP-TE between Switch B and Switch C. When the link between Switch B and
Switch C fails, BFD can detect the failure quickly and notify RSVP-TE of the failure, so RSVP-TE can
switch traffic to the bypass tunnel.
Figure 39 Network diagram
Switch A
Loop0
Vlan-int1
Switch B
Loop0
Vlan-int6
Vlan-int1
Vlan-int2
Vlan-int4
Vlan-int4
Primary CRLSP
Bypass Tunnel
Loop0
Switch E
Switch F
Loop0
Vlan-int6 Vlan-int7
Switch C
Loop0
Vlan-int3
Vlan-int2
Vlan-int5
Vlan-int5
142
Switch D
Loop0
Vlan-int7
Vlan-int3