IP routing basics ··························································································································································· 1

Overview ············································································································································································ 1

Routing table ······································································································································································ 1

Dynamic routing protocols ··············································································································································· 2

Routing preference ···························································································································································· 2

Load sharing ······································································································································································ 3

Route backup ····································································································································································· 3

Route recursion ·································································································································································· 3

Route redistribution ··························································································································································· 4

Displaying and maintaining a routing table ·················································································································· 4

Configuring static routing ············································································································································ 6

Introduction ········································································································································································ 6

Static route ································································································································································ 6

Default route ······························································································································································ 6

Static route configuration items ······························································································································· 6

Configuring a static route ················································································································································· 7

Configuring BFD for static routes ····································································································································· 8

BFD control mode ····················································································································································· 8

BFD echo mode ························································································································································ 9

Displaying and maintaining static routes ······················································································································· 9

Static route configuration examples ····························································································································· 10

Basic static route configuration example ············································································································ 10

BFD for static routes configuration example (direct next hop) ·········································································· 12

BFD for static routes configuration example (indirect next hop) ······································································· 14

Configuring RIP ·························································································································································· 17

RIP route entries ····················································································································································· 17

RIP timers ································································································································································ 17

Routing loop prevention ········································································································································ 17

RIP operation ·························································································································································· 18

RIP versions ···························································································································································· 18

RIP message format ··············································································································································· 18

Supported RIP features ·········································································································································· 20

Protocols and standards ······································································································································· 20

RIP configuration task list ··············································································································································· 20

Configuring RIP basic functions ···································································································································· 21

Configuration prerequisites ·································································································································· 21

Enabling RIP and a RIP interface ························································································································· 21

Configuring the interface behavior ····················································································································· 22

Configuring a RIP version ····································································································································· 22

Setting the DSCP value for RIP packets ··············································································································· 23

Configuring RIP route control ········································································································································ 24

Configuring an additional routing metric ··········································································································· 24

Configuring RIPv2 route summarization·············································································································· 24

Disabling host route reception ····························································································································· 25

Advertising a default route ··································································································································· 25

Configuring inbound or outbound route filtering ······························································································· 26

Configuring a priority for RIP ······························································································································· 27