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[SwitchB-bgp-default] address-family ipv4
[SwitchB-bgp-default-ipv4] peer 10.1.1.1 enable
# Configure Switch C to establish an IBGP peer relationship with Switch A.
<SwitchC> system-view
[SwitchC] bgp 200
[SwitchC-bgp-default] router-id 3.3.3.3
[SwitchC-bgp-default] peer 10.1.2.1 as-number 200
[SwitchC-bgp-default] address-family ipv4
[SwitchC-bgp-default-ipv4] peer 10.1.2.1 enable
# Configure Switch D to establish an IBGP peer relationship with Switch A.
<SwitchD> system-view
[SwitchD] bgp 200
[SwitchD-bgp-default] router-id 4.4.4.4
[SwitchD-bgp-default] peer 10.1.3.1 as-number 200
[SwitchD-bgp-default] address-family ipv4
[SwitchD-bgp-default-ipv4] peer 10.1.3.1 enable
# Display BGP peer information on Switch A. The output shows that Switch A has established
IBGP peer relationships with Switch B, Switch C, and Switch D.
[SwitchA] display bgp peer ipv4
BGP local router ID : 1.1.1.1
Local AS number : 200
Total number of peers : 3 Peers in established state : 3
* - Dynamically created peer
Peer AS MsgRcvd MsgSent OutQ PrefRcv Up/Down State
*10.1.1.2 200 7 10 0 0 00:06:09 Established
*10.1.2.2 200 7 10 0 0 00:06:09 Established
*10.1.3.2 200 7 10 0 0 00:06:09 Established
3. Configure Switch A as the route reflector, and configure peers in network 10.1.0.0/16 as its
clients.
[SwitchA-bgp-default-ipv4] peer 10.1.0.0 16 reflect-client
4. Configure Switch C to advertise network 9.1.1.0/24.
[SwitchC-bgp-default-ipv4] network 9.1.1.0 24
Verifying the configuration
# Verify that route 9.1.1.0/24 exists in the BGP routing table on Switch A, Switch B, and Switch D.
This example uses Switch A.
[SwitchA-bgp-default] display bgp routing-table ipv4
Total Number of Routes: 1
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
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