Monday, September 17, 2012

RIP and IGRP




-RIP
Routing protocols, dynamic protocol. Used to diseuteonseu vector algorithm is a protocol for internal use.
How to choose a good way HopCount up to 15, and the update period is 30 seconds.
Use Disadvantages: reliability, line speed or line of road, etc., not only rely solely on hop count, so
* Set the line speed using V.35 cable Clockrate deeper.
Information sent from RIPv1 to understand, regardless of the version, but the information sent from the RIPv2 RIPv2 can be understood only in
Default Distance value is 120
RIP configuration commands
  - Router rip
  - Network network-number

Administrative distance values ​​are different protocols from which routing protocol to use path information
Find how? That value.

-Distance Vector routing algorithm of the problem and solution
Problem: time. Passed to the routing table once learned, the time updates are delivered to all network
  (Convergence Time) looping occurs often say a lot of hanging.
Solution
  : Maximum Hop Count used. And 15 is determined by the maximum number of hops over a value is considered as unreachable
Flush Time after Sikkim deleted. Problem .. Can not use the path hop count beyond 15
  Use: Hold down Timer. Notifies you that the network is down, the router in the network is down for the start Hold down timer. Hold down timer that operates during the routing path information received from the external metrics such as Hold down the count had terminated or a new path to the destination if the good or ignored and update management.
  : Split Horizon. Where they are coming from the routing information, the same information can not be exported. Made the entire network using only the roofing of the two routers to prevent difficulties in
  : Route Poisoning. Infinite metric value of the network is down, the router learned that the network is down, replace the
Unusable mandeum. Are erased from the routing table can stop the wrong routing information.
  : Posion Reverse Split horizon with poison reverse update. Carried out if the update by sending the value of the Send but can not use infinity, infinity hopgap not be split like routing information sent nSubmitting routers if by mistake the wrong path information used to significantly reduce


-IGRP
Routing protocols and dynamic protocol. Routing protocol is intended for internal use, diseuteonseu vector algorithm is used. Algorithm invented by Cisco, and Cisco can be used only Path decision
  : Bandwidth (Bandwidth) - interface serial 0 bandwidth 56 (56kb as set) Default 1.544Mbps
  Time to get through the path: delay (Delay) -
  Shows the figures: reliability (Reliabilty) - to send packets through the transmission medium, and the resulting error rate
  Hanging by a certain amount of load: Load (Load) - on the path to the origin and destination, whether measured
  Maximum transmission unit (MTU: Maximum Transmission Unit)
Every 90 seconds to update the routing table. Maximum hop count of 255.
Disadvantage as RIP and classful because do not support VLSM (Variable Length Subnet Mask).

IGRP configuration commands
  - Route igrp autonomous system numbet
  - Network network-number


No comments:

Post a Comment