R3303-HP HSR6800 Routers Layer 3 - IP Routing Configuration Guide

358
Next Hop : Direct Interface: S2/2/0
Destination: 2001:4::1 PrefixLen: 128
Flag : D/L/- Cost : 0
Next Hop : Direct Interface: GE2/1/1
Flags: D-Direct, R-Added to RM, L-Advertised in LSPs, U-Up/Down Bit Set
Configuring BFD for IPv6 IS-IS
Network requirements
As shown in Figure 105, configure IPv6 IS-IS on Router A, Router B, and Router C and configure BFD over
the link Router A<—>L2 Switch<—>Router B.
When the link between Router B and the Layer-2 switch fails, BFD can quickly detect the failure and notify
IPv6 IS-IS of the failure. Then Router A and Router B communicate through Router C.
Figure 105 Network diagram
Device Interface IPv6 address Device Interface IPv6 address
Router A GE2/1
/
1 2001::1/64 Router B GE2/1
/
1 2001::2/64
GE2/1/2 2001:2::1/64 GE2/1/2 2001:3::2/64
Router C GE2/1
/
1 2001:2::2/64
GE2/1
/
2 2001:3::1/64
Configuration procedure
1. Configure IP addresses for interfaces. (Details not shown.)
2. Configure IPv6 IS-IS:
# Configure Router A.
<RouterA> system-view
[RouterA] ipv6
[RouterA] isis 1
[RouterA-isis-1] is-level level-1
[RouterA-isis-1] network-entity 10.0000.0000.0001.00
[RouterA-isis-1] ipv6 enable
[RouterA-isis-1] quit
[RouterA] interface gigabitethernet 2/1/1