KB.15.15

3. Configure the BGP community.

# Configure a routing policy.

route-map bgp-out permit seq 10

HP Switch(route-map-bgp-out)# set community no-export

HP Switch(route-map-bgp-out)# exit

# Apply the routing policy.

HP Switch(config)# bgp 10

HP Switch(bgp)# neighbor 200.1.2.2 route-map bgp-out out

# Display the route on Switch B.

HP Switch(config)# show ip bgp 9.1.1.0/24

Local AS : 20 Local Router-id : 2.2.2.2

BGP Table Version : 3

Network : 9.1.1.0/24 Nexthop : 200.1.2.1

Peer : 200.1.2.1 Origin : igp Metric : 0 Local Pref : Weight

: 0 Calc. Local Pref : 100

Valid : Yes Type : external

Stale : No

Best : Yes (Only Route Available) AS-Path : 100

Communities: no-export

# Display the routing table on Switch C.

HP Switch# show ip bgp 9.1.1.0/24

The route 9.1.1.0/24 is not available in the routing table of Switch C.

BGP route reflector configuration

Network requirements

In the following figure, all switches run BGP.

• There is an eBGP connection between Switch A and Switch B. There are iBGP connections

between SwitchB and Switch C, and between Switch C and Switch D.

• Switch C is a route reflector with clients Switch B and D.

• Switch D can learn route 1.0.0.0/8 from Switch C.

Figure 63 Network diagram for BGP route reflector configuration

Configuration procedure

1. Configure IP addresses for interfaces (omitted.)

2. Configure BGP connections.

# Configure Switch A.

HP Switch(config)# router bgp 100

HP Switch(bgp)# bgp router-id 1.1.1.1

322 Border Gateway Protocol (BGP)