R0106-HP MSR Router Series Layer 3 - IP Routing Configuration Guide(V7)

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BGP local router ID: 4.4.4.4
Local AS number: 65001
Paths: 1 available, 1 best
BGP routing table information of 9.1.1.0/24:
From : 10.1.3.1 (1.1.1.1)
Rely nexthop : 10.1.3.1
Original nexthop: 10.1.3.1
OutLabel : NULL
AS-path : 100
Origin : igp
Attribute value : MED 0, localpref 100, pref-val 0, pre 255
State : valid, internal-confed, best,
IP precedence : N/A
QoS local ID : N/A
The output shows the following:
• Router F can send route information to Router B and Router C through the confederation by
establishing only an EBGP connection with Router A.
• Router B and Router D are in the same confederation, but belong to different sub-ASs. They obtain
external route information from Router A and generate identical BGP route entries although they
have no direct connection in between.
BGP path selection configuration example
Network requirements
As shown in Figure 72, all routers run BGP.
• EBGP runs between Router A and Router B, and between Router A and Router C.
• IBGP runs between Router B and Router D, and between Router D and Router C. OSPF is the IGP
protocol in AS 200.
Configure routing policies to make Router D give priority to the route 1.0.0.0/8 learned from Router C.
Figure 72 Network diagram