
Configuring IP Exterior Gateway Protocols (BGP and EGP)
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For example, the following sequence of BCC commands:
1.
Configures an IP circuitless interface (201.1.1.1) on the local router’s virtual
circuit.
2.
Configures two static routes to destination 201.1.1.4, the IP circuitless
interface on the remote router.
3.
Assigns router ID 201.1.1.1 to BGP on the local router.
4.
Associates local BGP with AS 11.
5.
Configures local BGP for multihop peer-to-peer sessions.
6.
Establishes a BGP peer-to-peer session between virtual interface 201.1.1.1 on
the local router and virtual interface 201.1.1.4 on the remote router.
7.
Configures the peer-to-peer session for route balancing.
box# virtual
virtual# ip 201.1.1.1/30
ip/201.1.1.1/255.255.0.252# box
box# ip
ip# static-route 201.1.1.4/30/198.2.1.1
static-route/201.1.1.4/255.255.0.0/198.2.1.1# back
ip# static-route 201.1.1.4/30/192.32.28.51
static-route/201.1.1.4/255.255.0.0/192.32.28.51# back
ip# /jointfilesconvert/106988/bgp
/jointfilesconvert/106988/bgp# router-id 201.1.1.1
/jointfilesconvert/106988/bgp# local-as 11
/jointfilesconvert/106988/bgp# multi-hop enabled
/jointfilesconvert/106988/bgp# peer 201.1.1.1/201.1.1.4 as 12
peer/201.1.1.1/201.1.1.4# e/jointfilesconvert/106988/bgp-ecmp-method route-balance
peer/201.1.1.1/201.1.1.4# back
/jointfilesconvert/106988/bgp#
Table 9-2. EBGP ECMP Methods
Method Meaning
route-balance BGP submits one BGP route to the IP routing table for each BGP
destination, using in turn (round-robin) the available ECMP routes
to the next hop.
traffic-balance BGP submits multiple routes to IP, using all known IGP ECMP IP
next hops.
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