Bgp And Igp Interaction Configuration - 3Com MSR 50 Series Configuration Manual

BGP and IGP Interaction
Configuration
Origin : i - IGP, e - EGP, ? - incomplete
Network
*> 8.0.0.0
*> 9.1.1.0/24
*> 9.1.3.0/24
* 200.1.1.0
# Display BGP routing table information on Router C.
[RouterC] display bgp routing-table
Total Number of Routes: 4
BGP Local router ID is 3.3.3.3
Status codes: * - valid, > - best, d - damped,
h - history,
Origin : i - IGP, e - EGP, ? - incomplete
Network
*>i 8.0.0.0
*>i 9.1.1.0/24
* i 9.1.3.0/24
*>i 200.1.1.0
You can find the route 8.0.0.0 becomes valid with the next hop as Router A.
# Ping 8.1.1.1 on Router C.
[RouterC] ping 8.1.1.1
PING 8.1.1.1: 56
Reply from 8.1.1.1: bytes=56 Sequence=1 ttl=254 time=31 ms
Reply from 8.1.1.1: bytes=56 Sequence=2 ttl=254 time=47 ms
Reply from 8.1.1.1: bytes=56 Sequence=3 ttl=254 time=31 ms
Reply from 8.1.1.1: bytes=56 Sequence=4 ttl=254 time=16 ms
Reply from 8.1.1.1: bytes=56 Sequence=5 ttl=254 time=31 ms
--- 8.1.1.1 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 16/31/47 ms
Network requirements
As shown below, OSPF is used as the IGP protocol in AS 65009, where Router C is
a non-BGP router. Between Router A and Router B is an EBGP connection.
BGP Typical Configuration Examples
NextHop MED
0.0.0.0 0
200.1.1.1 0
200.1.1.1 0
200.1.1.1 0
i - internal, s - suppressed, S - Stale
NextHop MED
200.1.1.2 0
9.1.3.1 0
9.1.3.1 0
9.1.3.1 0
data bytes, press CTRL_C to break
LocPrf PrefVal Path/Ogn
0 i
0 65009?
0 65009?
0 65009?
LocPrf PrefVal Path/Ogn
100 0 65008i
100 0 ?
100 0 ?
100 0 ?
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