367 
<RouterA> display bfd session 
 
 Total Session Num: 1     Up Session Num: 1     Init Mode: Active 
 
 IPv6 Session Working Under Ctrl Mode: 
 
       Local Discr: 1441                 Remote Discr: 1450 
         Source IP: FE80::20F:FF:FE00:1202 (link-local address of Ethernet1/1 on Router 
A) 
    Destination IP: FE80::20F:FF:FE00:1200 (link-local address of Ethernet1/1 on Router 
B) 
     Session State: Up                      Interface: Eth1/1 
         Hold Time: 2319ms 
# Display routes destined for 2001:4::0/64 on Router A.  
<RouterA> display ipv6 routing-table 2001:4::0 64 
 
Summary Count : 1 
 
Destination: 2001:4::/64                                 Protocol  : OSPFv3 
NextHop    : FE80::20F:FF:FE00:1200                      Preference: 10 
Interface  : Eth1/1                                      Cost      : 1 
The output shows that Router A communicates with Router B through Ethernet 1/1. Then the link over 
Ethernet 1/1 fails. 
# Display routes destined for 2001:4::0/64 on Router A.  
<RouterA> display ipv6 routing-table 2001:4::0 64 
 
Summary Count : 1 
 
Destination: 2001:4::/64                                 Protocol  : OSPFv3 
NextHop    : FE80::BAAF:67FF:FE27:DCD0                   Preference: 10 
Interface  : Eth1/2                                      Cost      : 2 
The output shows that Router A communicates with Router B through Ethernet 1/2. 
Configuring OSPFv3 IPsec profiles 
Network requirements 
As shown in Figure 91, all routers run OSPFv3, and the AS is divided into two areas.  
Configure IPsec profiles on the routers to authenticate and encrypt protocol packets.