© Copyright Lenovo 2018 Contents 13
HowMLDWorks........................... 369
HowFloodingImpactsMLD .................
...370
MLDQuerier ........................... 370
QuerierElection ..................
......370
DynamicMrouters........................371
MLDCapacityandDefaultValues............
.......372
ConfiguringMLD........................... 373
Chapter 27. Border Gateway Protocol . . . . . . . . . . . . . . . 375
InternalRoutingVersusExternalRouting........
........ 376
FormingBGPPeerRouters.......................377
WhatisaRouteMap?...........
..............378
IncomingandOutgoingRouteMaps ................379
Precedence ..............
..............379
ConfigurationExample......................379
AggregatingRoutes..........
..............381
RedistributingRoutes....................... 381
BGPAttributes........
....................382
LocalPreferenceAttribute..................... 382
Metric(Multi‐ExitDiscriminator)Attribute ..
............382
SelectingRoutePathsinBGP......................38 3
BGPFailoverConfiguration ........
..............384
DefaultRedistributionandRouteAggregationExample..........386
Chapter 28. OSPF . . . . . . . . . . . . . . . . . . . . . . . . 389
OSPFv2Overview.................
.........389
TypesofOSPFAreas....................... 390
TypesofOSPFRoutingDevices .........
..........39 1
NeighborsandAdjacencies.....................392
TheLink‐StateDatabase .............
.........392
TheShortestPathFirstTree ....................393
InternalVersusExternalRouting ...........
.......393
OSPFv2ImplementationinLenovoENOS ... ............. 394
ConfigurableParameters.....................
.394
DefiningAreas.......................... 395
AssigningtheAreaIndex.................
...395
UsingtheAreaIDtoAssigntheOSPFAreaNumber ........ 396
AttachinganAreatoaNetwork .................396
InterfaceCost......
.....................397
ElectingtheDesignatedRouterandBackup .............397
SummarizingRoutes ........
...............397
DefaultRoutes..........................398
VirtualLinks . ...
....................... 399
RouterID.........................
...399
Authentication.......................... 400
ConfiguringPlainTextOSPFPasswords.............401
Configuring
MD5Authentication................402
HostRoutesforLoadBalancing ................... 403
LoopbackInterfacesinOSPF .....
...............403
OSPFFeaturesNotSupported...................404