Brocade Network OS Administrator’s Guide v4.1.1 User Manual
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Disabling OSPF on the router......................................................... 595
Basic VRRP topology......................................................................597
VRRP multigroup clusters...............................................................598
VRRP/VRRP-E packet behavior..................................................... 599
Track ports and track priority with VRRP and VRRP-E...................600
Short-path forwarding (VRRP-E only).............................................600
VRRP considerations and limitations..............................................601
Configuring basic VRRP................................................................. 602
Enabling VRRP preemption............................................................ 604
Configuring short-path forwarding...................................................604
Configuring multigroup VRRP routing.............................................605
VRF topology.................................................................................. 609
OSPF VRF-Lite for customer-edge routers.....................................610
Enabling VRRP for VRF..................................................................611
Configuring OSPF VRF-Lite for customer-edge routers................. 612
Configuring Inter-VRF route leaking................................................613
Inter-VRF route leaking and DHCP relay........................................615
BGP support....................................................................................617
Deployment scenarios.....................................................................617
BGP peering....................................................................................620
BGP attributes.................................................................................623
Best-path algorithm.........................................................................623
BGP limitations and considerations................................................ 624
Understanding BGP configuration fundamentals........................................624
Configuring BGP............................................................................. 625
Device ID.........................................................................................625
Local AS number.............................................................................625
IPv4 unicast address family............................................................ 625
BGP global mode ...........................................................................626
Neighbor configuration....................................................................626
Peer groups.....................................................................................628
Four-byte AS numbers....................................................................628
Route redistribution.........................................................................628
Advertised networks........................................................................629
Static networks................................................................................629
Route reflection...............................................................................629
Route flap dampening.....................................................................630
Default route origination..................................................................631
Multipath load sharing.....................................................................631
Configuring the default route as a valid next-hop........................... 631
Next-hop recursion..........................................................................631
Route filtering..................................................................................632
Timers............................................................................................. 632
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Network OS Administrator’s Guide
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