IPv6 BGP basic configuration example
Network requirements
As shown in Figure 82, all switches run BGP. Run EBGP between Switch A and Switch B, and run IBGP between Switch B and Switch C to allow Switch C to access network 50::/64 connected to Switch A.
Figure 82: Network diagram
Configuration procedure
Configure IP addresses for interfaces. (Details not shown.)
Configure IBGP:
# Configure Switch B.
<SwitchB> system-view [SwitchB] bgp 65009 [SwitchB-bgp-default] router-id 2.2.2.2 [SwitchB-bgp-default] peer 9::2 as-number 65009 [SwitchB-bgp-default] address-family ipv6 [SwitchB-bgp-default-ipv6] peer 9::2 enable [SwitchB-bgp-default-ipv6] quit
# Configure Switch C.
<SwitchC> system-view [SwitchC] bgp 65009 [SwitchC-bgp-default] router-id 3.3.3.3 [SwitchC-bgp-default] peer 9::1 as-number 65009 [SwitchC-bgp-default] address-family ipv6 [SwitchC-bgp-default-ipv6] peer 9::1 enable
Configure EBGP:
# Configure Switch A.
<SwitchA> system-view [SwitchA] bgp 65008 [SwitchA-bgp-default] router-id 1.1.1.1 [SwitchA-bgp-default] peer 10::1 as-number 65009 [SwitchA-bgp-default] address-family ipv6 [SwitchA-bgp-default-ipv6] peer 10::1 enable
# Configure Switch B.
[SwitchB-bgp-default] peer 10::2 as-number 65008 [SwitchB-bgp-default] address-family ipv6 [SwitchB-bgp-default-ipv6] peer 10::2 enable
Inject network routes to the BGP routing table:
# Configure Switch A.
[SwitchA-bgp-default-ipv6] network 10:: 64 [SwitchA-bgp-default-ipv6] network 50:: 64 [SwitchA-bgp-default-ipv6] quit [SwitchA-bgp-default] quit
# Configure Switch B.
[SwitchB-bgp-default-ipv6] network 10:: 64 [SwitchB-bgp-default-ipv6] network 9:: 64 [SwitchB-bgp-default-ipv6] quit [SwitchB-bgp-default] quit
# Configure Switch C.
[SwitchC-bgp-default-ipv6] network 9:: 64 [SwitchC-bgp-default-ipv6] quit [SwitchC-bgp-default] quit
Verifying the configuration
# Display IPv6 BGP peer information on Switch B.
[SwitchB] display bgp peer ipv6 BGP local router ID: 2.2.2.2 Local AS number: 65009 Total number of peers: 2 Peers in established state: 2 * - Dynamically created peer Peer AS MsgRcvd MsgSent OutQ PrefRcv Up/Down State 9::2 65009 41 43 0 1 00:29:00 Established 10::2 65008 38 38 0 2 00:27:20 Established
The output shows that Switch A and Switch B have established an EBGP connection, and Switch B and Switch C have established an IBGP connection.
# Display IPv6 BGP routing table information on Switch A.
[SwitchA] display bgp routing-table ipv6 Total number of routes: 4 BGP local router ID is 1.1.1.1 Status codes: * - valid, > - best, d - dampened, h - history, s - suppressed, S - stale, i - internal, e - external Origin: i - IGP, e - EGP, ? - incomplete * >e Network : 9:: PrefixLen : 64 NextHop : 10::1 LocPrf : PrefVal : 0 OutLabel : NULL MED : 0 Path/Ogn: 65009i * > Network : 10:: PrefixLen : 64 NextHop : :: LocPrf : PrefVal : 32768 OutLabel : NULL MED : 0 Path/Ogn: i * e Network : 10:: PrefixLen : 64 NextHop : 10::1 LocPrf : PrefVal : 0 OutLabel : NULL MED : 0 Path/Ogn: 65009i * > Network : 50:: PrefixLen : 64 NextHop : :: LocPrf : PrefVal : 32768 OutLabel : NULL MED : 0 Path/Ogn: i
The output shows that Switch A has learned routing information of AS 65009.
# Display IPv6 BGP routing table information on Switch C.
[SwitchC] display bgp routing-table ipv6 Total number of routes: 4 BGP local router ID is 3.3.3.3 Status codes: * - valid, > - best, d - dampened, h - history, s - suppressed, S - stale, i - internal, e - external Origin: i - IGP, e - EGP, ? - incomplete * > Network : 9:: PrefixLen : 64 NextHop : :: LocPrf : PrefVal : 32768 OutLabel : NULL MED : 0 Path/Ogn: i * i Network : 9:: PrefixLen : 64 NextHop : 9::1 LocPrf : 100 PrefVal : 0 OutLabel : NULL MED : 0 Path/Ogn: i * >i Network : 10:: PrefixLen : 64 NextHop : 9::1 LocPrf : 100 PrefVal : 0 OutLabel : NULL MED : 0 Path/Ogn: i * >i Network : 50:: PrefixLen : 64 NextHop : 10::2 LocPrf : 100 PrefVal : 0 OutLabel : NULL MED : 0 Path/Ogn: 65008i
The output shows that Switch C has learned the route 50::/64.
# Verify that Switch C can ping hosts on network 50::/64. (Details not shown.)