Ipv6 Is-Is Frr Configuration Example - HP HPE FlexNetwork 7500 series Configuration Manual

Destination IP: FE80::20F:FF:FE00:1200 (link-local address of VLAN-interface 10 on
Switch B)
Session State: Up
Hold Time: 2319ms
# Display routes destined for 2001:4::0/64 on Switch A.
<SwitchA> display ipv6 routing-table 2001:4::0 64
Summary Count : 1
Destination: 2001:4::/64
NextHop
Interface
The output shows that Switch A and Switch B communicate through VLAN-interface 10. Then the
link over VLAN-interface 10 fails.
# Display routes destined for 2001:4::0/64 on Switch A.
<SwitchA> display ipv6 routing-table 2001:4::0 64
Summary Count : 1
Destination: 2001:4::/64
NextHop
Interface
The output shows that Switch A and Switch B communicate through VLAN-interface 11.

IPv6 IS-IS FRR configuration example

Network requirements
As shown in
Configure IPv6 IS-IS FRR so that when the Link A fails, traffic can be switched to Link B immediately.
Figure 114 Network diagram
Loop0
Switch A
Table 29 Interface and IP address assignment
Device
Switch A
Switch C
: FE80::20F:FF:FE00:1200
: Vlan10
: FE80::BAAF:67FF:FE27:DCD0
: Vlan11
Figure 114, Switch A, Switch B, and Switch C belong to the same IS-IS routing domain.
Vlan-int200
Interface IP address
Vlan-int100 1::1/64
Vlan-int200 2::1/64
Loop0 10::1/128
Vlan-int100 1::2/64
Interface: Vlan10
Switch C
Link B
Link A
Vlan-int200
Device
Switch B
490
Protocol : IS_L1
Preference: 15
Cost : 10
Protocol : IS_L1
Preference: 15
Cost : 20
Loop0
Switch B
Interface IP address
Vlan-int101 3::1/64
Vlan-int200 2::2/64
Loop0 20::1/128