Routing and Switching

DMVPN uses NHRP to dynamically learn the NBMA address of other routers that are a part of the same network. NHRP is a client-server protocol. The DMVPN hub acts as the NHRP server, and the spokes are NHRP clients. Only…
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EIGRP The summarisation command is done on the interface you can summarise or prevent some route to be advertise with summarisation . (config-if)#ip summary-address eigrp # ( summary address ) ether all network or the one you want to advertise…
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To make equal cost balancing we need minimum 2 routes by looking at the topology metric : show ip eigrp topology ( network address and mask ) or show interface ( interface ) Then you can match the metric parameters…
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Reminder : For a path to become an Feasible Successor the FD must be less or equal then the AD x Variance ( 1 by default ) Commands usefull for understanding and managing Path Selection Show ip route Show ip…
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Configure the Bri interfaces on each routers R1(config)#interface bri 0 R1(config-if)#no ip address R1(config-if)#isdn switch-type basic-ni R1(config-if)#isdn spid1 100000001000100 R1(config-if)#isdn spid2 100000001100100 R1(config-if)#dialer pool-authorise-user 1 R1(config-if)#encapsulation “ppp” or R1(config-if)#ppp authentication chap R2(config)#interface bri 0 R2(config-if)#no ip address R2(config-if)#isdn switch-type basic-ni R2(config-if)#isdn…
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Understanding PIM PIM is called protocol-independent: regardless of the unicast routing protocols used to populate the unicast routing table, PIM uses this information to perform multicast forwarding instead of maintaining a separate multicast routing table. PIM is defined in RFC…
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Reminder OSPF is a Link State routing protocol that calls for the sending of link-state advertisements (LSAs) to all other routers within the same hierarchical area. Information on attached interfaces, metrics used, and other variables is included in OSPF LSAs….
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