In This Chapter - Dell PowerConnect B-RX Configuration Manual

Bigiron rx series configuration guide v02.7.02
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Configuring BGP4 (IPv4 and IPv6)

In this chapter

BigIron RX Series Configuration Guide
53-1001810-01
Overview of BGP4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 738
Brocade implementation of BGP4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 743
Memory considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 744
Configuring BGP4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 744
Activating and disabling BGP4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 748
Entering and exiting the address family configuration level. . . . . . . . . . . . 749
Filtering specific IP addresses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 749
Defining an AS-path filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 751
Defining a community filter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 751
Configuring a switch to allow routes with its own AS number . . . . . . . . . . 752
BGP Null0 routing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 753
Aggregating routes advertised to BGP4 neighbors . . . . . . . . . . . . . . . . . . . 757
Configuring the BigIron RX to always compare Multi-Exit Discriminators (MEDs) 757
Redistributing IBGP routes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 758
Disabling or re-enabling client-to-client route reflection . . . . . . . . . . . . . . . 759
Configuring a route reflector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 759
Enabling or disabling comparison of the router IDs . . . . . . . . . . . . . . . . . . 759
Configuring confederations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 760
Configuring route flap dampening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 763
Originating the default route. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 764
Changing the default local preference. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 764
Changing the default metric used for redistribution . . . . . . . . . . . . . . . . . . 765
Changing administrative distances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 765
Requiring the first AS to be the neighbor's AS . . . . . . . . . . . . . . . . . . . . . . 766
Enabling fast external fallover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 767
Setting the local AS number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 767
Changing the maximum number of shared BGP4 paths . . . . . . . . . . . . . . 768
Treating missing MEDs as the worst MEDs . . . . . . . . . . . . . . . . . . . . . . . . . 768
Customizing BGP4 load sharing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 769
Configuring BGP4 neighbors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 769
Configuring a BGP4 peer group . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 776
Specifying a list of networks to advertise . . . . . . . . . . . . . . . . . . . . . . . . . . 779
Chapter
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