EIGRP

EIGRP is a open standard since 2013,it was Cisco propitiatory.

Advanced Distance vector Routing protocol,it using DUAL Algorithm

Classless and it support VLSM,FLSM,CIDR, Auto&Manual Summary

Internal AD is 90 and External AD is 170

It sends updates as a Multicast(224.0.0.10)and Unicast

Maximum Hops is 255(default 100)

it support IP(version 4 and 6), IPX and Apple talk

EIGRP Metric=[(k.Bandwidth+K.Bandwidth/256-load+k3.delay).k5/k4+reliability].256

default k values K1=1 k2=0 k3=1 k4=0 k5=0

Routing Protocols (RIPv2 Configuration)

Configure RIPv2

R(config)#router RIP

R(config-router)#version 2

R(config-router)#network<n/w id>

To block auto summary —- R(config-router)#no auto-summary

Mannual Summarization

R(config-router)#ip summary-address rip <summary network><mask>

To set broadcast update

R(config-if)#ip rip v2-broadcast

to set unicast update

R(config-router)#neighbor<ip add>

to set send triggered update

R(config-if)#ip rip triggered

PASSIVE Interface:So the only RIP to be encountered on the ROUTE test appears to be passive interfaces.

So in EIGRP and OSPF passive interfaces do not send or receive routing updates, they do not participate in neighborships or the routing protocol.

RIPv2 on the other hand:
A passive interface does not SEND updates out this interface, it will still install RIP updates it receives.
Router 1 will now receive routes from s0/0/1 but will not send any information out s0/0/1.

R(config-Router)#passive-interface<type no>| default

Passive interface with manual Neighbor

R(config-Router)#passive-interface<type no>| default

R(config-Router)#neighbor<ip address>

Routing Protocols (RIPv2)

  • RIPv2

RIPv2 is an open standard and distance vector routing protocol as defined in RFC 1723. Because RIPv2 is a classless routing protocol, which means, it includes the subnet mask with the network addresses in the routing updates. As with other classless routing protocols, RIPv2 supports CIDR supernets, VLSM,FLSM,Auto and manual summary.more than 25 Updates.

It will send complete list of RIP entries via updates packets,update packets can carry only 25 routers,hence multiple packets are requeired to carry more than 25 Updates.Update packets are send via multicast(224.0.0.9).

RIPv2 Maximum Metric is 15 (16 is Unreachable),update timer is 30 sec,invalid timer is 180 sec,flush timer is 240 sec,Hold timer is 180 sec and 120 is the AD value.

RIP has two types of message packets these are Request and Response.

Due to the deficiencies of RIPv1, RIP version 2 (RIPv2) was developed sometime in 1993. It’s equipped with the ability to support subnet information and supports Classless Inter-Domain Routing (CIDR). A router that receives routing updates from multiple routers advertising the same classful summary route cannot determine which subnets belong to which summary route. This inability leads to unexpected results including misrouted packets.

RIPv2 still maintains the hop count limit of 15 and incorporated a password authentication mechanism. However, passwords were transmitted in clear-text format, which were found insufficient for secure communications on the Internet.

The default version of RIP is version 1. The command version 2 is used to modify RIPv1 to RIPv2.

Use The show ip protocols command to view that RIP is now sending and receiving version 2 updates and whether or not automatic summarization is in effect.

RIPv2 is actually an enhancement of RIPv1’s features and extensions rather than an entirely new protocol. Some of these enhanced features include:

  • Next-hop addresses included in the routing updates
  • Use of multicast addresses in sending updates
  • Authentication option available

Like RIPv1, RIPv2 is a distance vector routing protocol. Both versions of RIP share the following features and limitations:

  • Use of holddown and other timers to help prevent routing loops.
  • Use of split horizon or split horizon with poison reverse to also help prevent routing loops.
  • Use of triggered updates when there is a change in the topology for faster convergence.
  • Maximum hop count limit of 15 hops, with the hop count of 16 signifying an unreachable network.

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i10Systems

 

Greetings from i10 Systems!!!

 

 

i10 Systems is one of the leading players in system sales, service, networking and all

Computing.  i10 system is uniquely positioned to deliver end-to-end IT solutions beginning from cabling to collaboration to the market.

We bring a broader, deeper and state-of-the-art range of products, solutions & services to our     customers. Our offerings in IT Infrastructure and IT Managed Services help our customers derive more value out of IT.  i10 System has expertise in IT Infrastructure wired and wireless deployment.

 

Thank you have a great day ahead!!!

Regards,

i10 Systems ,

Tirur  Road, Down Hill,  Malappuram-676519.

Ph: +91-9048993604 ,  9846949982