Avaya Configuring IP Exterior Gateway Protocols (BGP and EGP) Manual de usuario Pagina 158

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Configuring IP Exterior Gateway Protocols (BGP and EGP)
7-8
308628-15.0 Rev 00
Using the BCC
To configure EBGP ECMP for route balancing or traffic balancing, go to the BGP
peer prompt (for example,
box; ip; /jointfilesconvert/97454/bgp; peer/2.2.2.2/2.2.2.3) and enter:
e/jointfilesconvert/97454/bgp-ecmp-method <
method>
method
is one of the values shown in Table 7-2.
For example, the following sequence of BCC commands does the following:
1.
Configures an IP circuitless (virtual) interface (201.1.1.1) on the local routers
virtual circuit.
2.
Configures two static routes to destination 201.1.1.4, the IP virtual 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 address 201.1.1.1 mask 255.255.0.0
ip/201.1.1.1/255.255.0.0# box
box#
ip
ip#
static-route 201.1.1.4/30/198.2.1.1
static-route/201.1.1.4/255.255.255.252/198.2.1.1#
back
ip#
static-route 201.1.1.4/30/192.32.28.51
static-route/201.1.1.4/255.255.255.252/192.32.28.51#
back
Table 7-2. 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 ECMP IP next
hops.
disabled (default) BGP implements neither route nor traffic balancing.
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