... www.bkacad.com 13 Routing Table Maintenance • RIP uses timers – Update timer 30s – Invalid timer 180s – Holddown timer 180s – Flush timer 2 40 s Học viện mạng Bách Khoa - Website: www.bkacad.com 14 Routing ... Distance Vector RoutingProtocols • Examples of Distance Vector routing protocols: – Routing Information Protocol (RIP) RFC 1 508 • Hop count is used as the metric • Max hop is 15 • Routing updates ... vector routingprotocols Describe the network discovery process of distance vector routingprotocols using Routing Information Protocol (RIP) Describe the processes to maintain accurate routing...
... C 10. 2 .0. 0 is directly connected, Serial0 /0/ 0 R 10. 3 .0. 0 [1 20/ 1] via 10. 2 .0. 2, 00 :00 : 04 , Serial0 /0/ 0 C 10. 1 .0. 0 is directly connected, FastEthernet0 /0 R 10 .4. 0.0 [1 20/ 2] via 10. 2 .0. 2, 00 :00 : 04 , ... Serial 0/ 0 /0 10. 3 .0. 0 available through interface Serial 0/ 0/1 R3: 10. 3 .0. 0 available through interface Serial 0/ 0 /0 10 .4. 0.0 available through interface FastEthernet 0/ 0 21 Initial Exchange of Routing ... network 10 .4. 0.0 on Serial 0/ 0 /0 with a metric of (new) Stores network 10 .4. 0.0 in the routing table with a metric of Same update from R2 contains information about network 10. 3 .0. 0 on Serial 0/ 0/0...
... from R4: Connected to neighbor R1 on network 10 .4. 0. 0/16, cost of 20 Connected to neighbor R3 on network 10. 7 .0. 0/16, cost of 10 Connected to neighbor R5 on network 10.10.0 .0/ 16, cost of 10 29 ... Network 10. 5 .0. 0/16 via R2 Serial 0/ 0 /0 at a cost of 22 20 33 Determining the Shortest Path Network 10. 6 .0. 0/16 via R3 Serial 0/ 0/1 at a cost of 34 Determining the Shortest Path 10 Network 10. 7 .0. 0/16 ... Shortest Path 20 10 37 Determining the Shortest Path 1010 Network 10.10.0 .0/ 16 via R3 Serial 0/ 0/1 at a cost of 25 38 Determining the Shortest Path Network 10. 11 .0. 0/16 via R3 Serial 0/ 0/1 at a cost...
... class B network 172. 30. 0 .0/ 16: –172. 30. 100 .0/ 24 (FastEthernet 0/ 0) 172. 30. 100 .0/ 24 –172. 30. 1 10. 0/ 24 (Loopback 0) –172. 30. 200 .16/28 (Loopback 1) –172. 30. 200 .32/28 (L 172 30 200 32/28 (Loopback 2) ... R1 and R3 have had the 172. 30. 0 .0/ 16 network subnetted into / 24 subnets subnets –Four of these / 24 subnets are assigned: –two to R1 (172. 30. 1 .0/ 24 and ( 172. 30. 2 .0/ 24) –two to R3 (172. 30. 100 .0/ 24 ... is 172. 30. 100 .1 with a / 24 mask, it will only i l d ith k ill l include 172. 30. 0.0 subnets with a / 24 mask The only one that meets this condition is 172. 30. 1 10.0 – The other 172. 30. 0.0 subnets,...
... default route (0. 0 .0. 0) What is classful? Classful means that a class A subnet should be shown as x 0 such as 100 255 .0. 0.0 x .0. 0.010.0 .0. 0 255 0 If you show it as 10 .44 .0. 0 255.255 .0. 0, you are ... as x.x .0. 0 255.255 .0. 0 such as 172.29 .0. 0 255.255 .0. 0 If you show it as 172.29.26 .0 255.255.255 .0, you are breaking its class Let’s assume RIP knows about 10.0 .0. 0 If you break 10.0 .0. 0 into ... 10.0 .0. 0 If you break 10.0 .0. 0 into three, for example to 10. 1 .0. 0and10. 2 .0. 0and10. 3 .0. 0, and then give RIP a packet with a destination of 10 .4. 0. 1, RIP will drop it Why? Why doesn’t RIP send the...