Routing and Switching

When a Packet arrive on the interface of a router the router take several logical decisions base on the data plane to process the packet. The packet arrive encapsulated inside the data link frame , so the router check the…
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  1. Enable IS-IS 2. Configure the NET Address 3. Configure IS-IS on the interfaces and Loopback 4. Select which circuit type 5. Verify your configuration . Example Configuration : (config)#router isis (config-router)#net ( Address ) (config)#interface ( interfaces ) (config-if)#ip router…
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    Command Purpose Step 1 Router(config)# aaa new-model Enables AAA globally. Step 2 Router(config)# aaa authentication login {default |list-name} method1 [method2…] Creates a local authentication list. Step 3 Router(config)# line [aux | console | tty | vty]line-number [ending-line-number] Enters line configuration mode for the lines…
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PAP is an authentication protocol that can be used with PPP. When PAP is used, the user name and the password of the originating router are sent over the link in plain text. CHAP is an authentication protocol that can…
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(config)#ipv6 unicast-routing  ( enable ipv6 routing ) (config)#ipv6 router  eigrp “ID” (config-rtr)#router-id x.x.x.x (config-rtr)#no shutdown ( enable eigrp ipv6 routing process ) (config-if)#interface ( interface ) (config-if)#ipv6 eigrp “ID” Verifying configuration : show ipv6 protocols show ipv6 eigrp neighbors show…
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Cisco NetFlow feature to capture statistics about network traffic flows that pass through a router. Although Cisco considers a series of packets a flow if they share, at a minimum, the same source and destination IP addresses, a flow  s defined…
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  When switches are configured to act as a VRRP group, they will work together to present the illusion of a single default gateway to the hosts on the LAN. In the event that the switch that is the Master VRRP…
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