Brocade Multi-Service IronWare Routing Configuration Guide (Supporting R05.6.00) - Manual (Page 4)

iv Multi-Service IronWare Routing Configuration Guide
53-1003033-02
BGP router reflector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Configuring BGP router reflector. . . . . . . . . . . . . . . . . . . . . . . . .22
Disabling or re-enabling client-to-client
route reflection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Configuring a route reflector. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Enabling or disabling comparison of device IDs . . . . . . . . . . . . . . . .26
Configuring confederations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
Four-byte Autonomous System Numbers (AS4) . . . . . . . . . . . . . . . .29
Enabling AS4 numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
BGP4 AS4 attribute errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Error logs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Specifying a maximum AS path length . . . . . . . . . . . . . . . . . . . . . . .35
Setting a global maximum AS path limit . . . . . . . . . . . . . . . . . .36
Setting a maximum AS path limit for a peer group
or neighbor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
BGP4 max-as error messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Configuring route flap dampening . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Originating the default route . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38
Changing the default local preference . . . . . . . . . . . . . . . . . . . . . . .38
Changing the default metric used for redistribution. . . . . . . . . . . . .39
Changing the default metric used for route cost . . . . . . . . . . . . . . .39
Changing administrative distances . . . . . . . . . . . . . . . . . . . . . . . . . .39
Requiring the first AS to be the neighbor AS. . . . . . . . . . . . . . . . . . .40
Enabling fast external fallover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Setting the local AS number. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Setting the local AS number for VRF instances . . . . . . . . . . . . .42
Configuring BGP4 multipath load sharing . . . . . . . . . . . . . . . . . . . . .43
Customizing BGP4 multipath load sharing . . . . . . . . . . . . . . . .44
Enhancements to BGP4 load sharing . . . . . . . . . . . . . . . . . . . .44
Configuring a static BGP4 network . . . . . . . . . . . . . . . . . . . . . . . . . .45
Configuring paths without MEDs as the least favorable . . . . . . . . .46
Configuring BGP4 neighbors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Auto shutdown of BGP4 neighbors on initial
configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52
Removing route dampening from suppressed routes . . . . . . . .53
Encrypting BGP4 MD5 authentication keys . . . . . . . . . . . . . . . .54
Advertising IPv4 routes between IPv6 BGP peers . . . . . . . . . . .56
Configuring a BGP4 peer group . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
Peer group parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
Administratively shutting down a session with a BGP4 neighbor . .63
Specifying a list of networks to advertise . . . . . . . . . . . . . . . . . . . . .63