ccna practice labs

ccna practice labs

On R2 and R3 , there are two OSPF processes. If shown, one is OSPF1 and the other is OSPF2 . Note that this dual process is mainly implemented on the two ASBRs R2 and R3 . These three representative routing re-release models. ! The extended header is optional. Only the function corresponding to the extended header is required, and the sending host adds the corresponding extended header. Image [Test 3 ] !! Since Fa0 / 0 connected to a router rather than the host, to reduce unnecessary ra of Router(config-router)# area area-id range xxxxx length !! 4.4.4.4 is also PE2 Image Image RIP and OSPF re-release Ip route 0.0.0.0 0.0.0.0 10.1.12.2 Router configuration: FE00 – FE7F Address-family ipv6 neighbor 4.4.4.4 activate The Linklocal address of the ISATAP virtual NIC . The destination address is the Linklocal address of the ISATAP router . After R2 show run , I found: ! Neighbor 2001:45::4 remote-as 234 1/1024 TCP 16 bits Access-list 1 permit 1.1.1.0 Image Case: Problems in the environment of education and telecommunications dual-export NAT network through PBR The Permit/deny keyword has a different role in different deployment scenarios. Metric LocPrf Weight Path IPv6 Multicast Static route configuration Must be zero Image RIP and OSPF Route accurate summary algorithm FF02::1:FFxx:xxxx where xx:xxxx is the lower 24 bits of each unicast or anycast address Interface Serial0/0 ipv6 enable Ipv6 address 2001::FFFE/64 no ipv6 nd suppress-ra Set tag 20 LSP Holdtime Reachable time and retrans timer are 0 if specified R1(config-route-map)# match ip address prefix-list list1 Ip route 0.0.0.0 0.0.0.0 202.101.23.2 Cisco CEF is the most efficient three-layer protocol. CEF uses a hardware-based platform . It not only stores data in the system buffer, but also " prestores " the entire routing table, topology table ,ccna practice labs, and all next hop addresses and MAC addresses , as long as the routing table, The entries in the topology table , regardless of whether there is a data request sent to its destination address , will be pre-read in advance , pre-set the cache . Thus , when there is a new data request to send , the CPU is not required to query the destination interface , destination MAC Address and other information , but read directly from the cache , so the forwarding speed is greatly improved .