ccnp-switch ip helper

ccnp-switch ip helper

Burst interval , the default is 1s , optional configuration. This is a continuous detection period,ccnp-switch ip helper, used to detect the number of ARP packets in this time period . The default is 1S , so that is, within 1S , if 15 (default) ARP is exceeded , the violation is. This time can be selected from 1-15S. *>i100.0.2.0/24 Neighbor 5.5.5.5 update-source Loopback0 neighbor 5.5.5.5 next-hop-self Command summary 81 _100$ Route poisoning The dst-mac detects the received destination ARP packet. The destination MAC address of the Ethernet frame header is the same as the target MAC address in the ARP body . This check is for ARP response . When this option is enabled , ARP packets are discarded if the two MAC addresses are inconsistent. It can be seen that since we configured the summary, the as-set keyword was used to make the summary route inherit the detailed partial path attribute. Therefore, the generated summary route still retains the aggregate attribute, but there is no atomic-agg attribute. Obviously this attribute It is no longer necessary in the case of the as-set keyword. //Get out a summary route instead of the default route Redirection enabled Match community 30 Tag 1111, type extern 2, forward metric 64 Layer 2 interface (switchport) : access mode, trunk mode Elect a root bridge in a switched network Neighbor 4.4.4.4 route-map LP out 100 Incomplete Therefore, when the route lookup mode of the router is classless or the classless route lookup mode, the default lookup action of the router is the longest match criterion. For example, in the above figure, when R3 receives a packet and goes to 172.16.1.1 , then in fact, 172.16.1.1 is "dropped" in the network of 172.16.1.0/24 and 172.16.0.0/16 , both seemingly Yes , but 172.16.1.0/24 obviously has a longer match, so the packet is eventually dropped to R1 . Similarly, if there is a data packet going to 172.16.2.1 ? Since the entry of 172.16.2.0/24 is the highest according to the longest match principle, the data is thrown to R2 .