Foundry Configuration Guide for the FESX, FSX, and FWSX
xvi © Foundry Networks, Inc. December 2005
ADDING A BGP4 PEER GROUP ........................................................................................................21-17
O
PTIONAL CONFIGURATION TASKS ..........................................................................................................21-21
C
HANGING THE KEEP ALIVE TIME AND HOLD TIME ............................................................................21-21
C
HANGING THE BGP4 NEXT-HOP UPDATE TIMER .............................................................................21-21
E
NABLING FAST EXTERNAL FALLOVER ..............................................................................................21-22
C
HANGING THE MAXIMUM NUMBER OF PATHS FOR BGP4 LOAD SHARING .........................................21-22
C
USTOMIZING BGP4 LOAD SHARING ................................................................................................21-23
S
PECIFYING A LIST OF NETWORKS TO ADVERTISE .............................................................................21-24
C
HANGING THE DEFAULT LOCAL PREFERENCE ..................................................................................21-25
U
SING THE IP DEFAULT ROUTE AS A VALID NEXT HOP FOR A BGP4 ROUTE .....................................21-25
A
DVERTISING THE DEFAULT ROUTE ..................................................................................................21-26
C
HANGING THE DEFAULT MED (METRIC) USED FOR ROUTE REDISTRIBUTION ....................................21-26
E
NABLING NEXT-HOP RECURSION ....................................................................................................21-26
C
HANGING ADMINISTRATIVE DISTANCES ...........................................................................................21-29
R
EQUIRING THE FIRST AS TO BE THE NEIGHBOR’S AS ......................................................................21-30
D
ISABLING OR RE-ENABLING COMPARISON OF THE AS-PATH LENGTH ...............................................21-30
E
NABLING OR DISABLING COMPARISON OF THE ROUTER IDS .............................................................21-30
C
ONFIGURING THE LAYER 3 SWITCH TO ALWAYS COMPARE MULTI-EXIT DISCRIMINATORS (MEDS) ....21-31
T
REATING MISSING MEDS AS THE WORST MEDS .............................................................................21-32
C
ONFIGURING ROUTE REFLECTION PARAMETERS .............................................................................21-32
C
ONFIGURING CONFEDERATIONS ......................................................................................................21-34
A
GGREGATING ROUTES ADVERTISED TO BGP4 NEIGHBORS .............................................................21-37
M
ODIFYING REDISTRIBUTION PARAMETERS ..............................................................................................21-37
R
EDISTRIBUTING CONNECTED ROUTES .............................................................................................21-38
R
EDISTRIBUTING RIP ROUTES ..........................................................................................................21-38
R
EDISTRIBUTING OSPF EXTERNAL ROUTES .....................................................................................21-39
R
EDISTRIBUTING STATIC ROUTES .....................................................................................................21-39
D
ISABLING OR RE-ENABLING RE-ADVERTISEMENT OF ALL LEARNED
BGP4 R
OUTES TO ALL BGP4 NEIGHBORS .................................................................................21-39
R
EDISTRIBUTING IBGP ROUTES INTO RIP AND OSPF ......................................................................21-40
F
ILTERING ..............................................................................................................................................21-40
F
ILTERING SPECIFIC IP ADDRESSES .................................................................................................21-40
F
ILTERING AS-PATHS .......................................................................................................................21-41
F
ILTERING COMMUNITIES ..................................................................................................................21-45
D
EFINING IP PREFIX LISTS ...............................................................................................................21-47
D
EFINING NEIGHBOR DISTRIBUTE LISTS ............................................................................................21-47
D
EFINING ROUTE MAPS ...................................................................................................................21-48
U
SING A TABLE MAP TO SET THE TAG VALUE ...................................................................................21-55
C
ONFIGURING COOPERATIVE BGP4 ROUTE FILTERING .....................................................................21-55
C
ONFIGURING ROUTE FLAP DAMPENING .................................................................................................21-58
G
LOBALLY CONFIGURING ROUTE FLAP DAMPENING ..........................................................................21-59
U
SING A ROUTE MAP TO CONFIGURE ROUTE FLAP DAMPENING FOR SPECIFIC ROUTES ....................21-60
U
SING A ROUTE MAP TO CONFIGURE ROUTE FLAP DAMPENING FOR A SPECIFIC NEIGHBOR ..............21-60
R
EMOVING ROUTE DAMPENING FROM A ROUTE ................................................................................21-61
R
EMOVING ROUTE DAMPENING FROM A NEIGHBOR’S ROUTES SUPPRESSED DUE TO AGGREGATION ..21-61
D
ISPLAYING AND CLEARING ROUTE FLAP DAMPENING STATISTICS .....................................................21-63