Bfd For Is-Is Configuration Example - HP HPE FlexNetwork 7500 series Configuration Manual

14.14.14.0/24
44.44.44.44/32
12.12.12.0/32
22.22.22.22/32
Flags: D-Direct, R-Added to Rib, L-Advertised in LSPs, U-Up/Down Bit Set
IPv4 Destination
-------------------------------------------------------------------------------
14.14.14.0/24
44.44.44.44/32
12.12.12.0/32
22.22.22.22/32
Flags: D-Direct, R-Added to Rib, L-Advertised in LSPs, U-Up/Down Bit Set
The output shows that the neighbor information and routing information on Switch A and Switch B
have not changed during the active/standby switchover on Switch S. The neighbors are unaware of
the switchover.

BFD for IS-IS configuration example

Network requirements
•
As shown in
other at the network layer.
•
After the link over which Switch A and Switch B communicate through the Layer-2 switch fails,
BFD can quickly detect the failure and notify IS-IS of the failure. Switch A and Switch B then
communicate through Switch C.
Figure 49 Network diagram
Switch A
Loop0
Vlan-int11
Area 0
Table 14 Interface and IP address assignment
Device
Switch A
10
10
10
10
Level-2 IPv4 Forwarding Table
-----------------------------
IntCost
10
10
10
10
Figure 49, run IS-IS on Switch A, Switch B and Switch C so that can reach each
BFD
Vlan-int10
L2 Switch
Vlan-int11
Switch C
Interface IP address
Vlan-int10 10.1.0.102/24
Vlan-int11 11.1.1.1/24
NULL vlan200
NULL Loop0
NULL vlan200
NULL vlan200
ExtCost ExitInterface
NULL vlan200
NULL Loop0
NULL
NULL
Switch B
Vlan-int10
Vlan-int13
Vlan-int13
Device
Switch B
188
Direct D/L/-
Direct D/-/-
14.14.14.4 R/L/-
14.14.14.4 R/L/-
NextHop Flags
Direct D/L/-
Direct D/-/-
Loop0
Interface IP address
Vlan-int10 10.1.0.100/24
Vlan-int13 13.1.1.1/24