
Configuring IP Exterior Gateway Protocols (BGP and EGP)
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• Destination-hash distribution based on the destination address only. IP
forwards all packets with a given destination address to the same next hop.
By default, in cases where IBGP uses the IP routing table to determine the next IP
hop to an IBGP peer, IBGP does not consider equal-cost multipath routes
submitted by RIP or OSPF. For more information about using ECMP for load
balancing, see Chapter 9, “Configuring Route and Traffic-Load Balancing
.”
By default, equal-cost multipath support is disabled on the router. You can use the
BCC or Site Manager to enable the feature and choose a distribution method.
Using the BCC
Navigate to the IP global prompt and enter:
ecmp-method
<method>
method
is one of the following:
disabled (default)
roundRobin
srcDestHash
destinationHash
Note:
To configure equal-cost multipath (ECMP) for BGP, you may also have
to configure ECMP for RIP, OSPF, or static routes.
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