ccnp 300-101 cheat sheet

ccnp 300-101 cheat sheet

Next Hop Start a TC while timer for the root port and all non-edge designated ports . The timer value is equal to 2 times the hello-time timer. RIPng Vlan 10 Neighbor 10.1.23.3 local-as 201 [no-prepend] [replace-as] [dual-as] Ip arp inspection validate { [dst-mac] [ip] [src-mac] } 3 No default Ipv6 does not support Ip address 10.1.13.3 255.255.255.0 Obviously this method is too poorly scalable. If R2 on ip route 1.1.1.0 255.255.255.0 null0 , this time there is no routing table OSPF of 1.1.1.0 routing the unsuccessful thus re-release, so R3 can not learn the 1.1.1.0/24 route; Route-map test permit 20 Router bgp 123 Configuration and implementation Ip next-hop recursive If you want to turn off ICMP redirects, you need to use no ip redirects on the interface . Configuration Revision 17 AFI (Address family identifier) Knowledge review The above network is equivalent to network 1.0.0.0 ( network has a class declaration) Will be reflected to other clients, non-clients and EBGP neighbors. We restore the experimental environment to the basic configuration: BGP neighbor relationships are as follows / / Mark the routing table 192.168.1.0 as the default network The lower the value is set, the higher the protection level for the CPU . This value takes effect before and after the penalty action occurs. Of course, this value cannot be set too low. At least the legal traffic must be processed. Generally less than 1000 is almost the same. The configuration of R4 is as follows: Note change, replace-as keywords allow R2 to secAS of EBGP when sending routing neighbors, with local-as201 replace real AS200 so replace-as the role of keywords is: Replace with local AS AS Real in the Updates at The EBGP , translate: when the router secondaryAS the EBGP send updated neighbor, with secondaryAS alternative number Pri aS number. The next hop of the route advertised by the device is 0.0.0.0) Configuration Let's look at the following example: Path Maximum frame: 1518+4=1522 Private VLAN ( PVLAN ) LLC 200 i Aging Type : Absolute SecureStatic Address Aging : Disabled Layer 2 interface (switchport) : access mode, trunk mode set as-path prepend 100 of this command, the route AS_PATH prior to insertion path attributes 100 the AS number, note that the use of this control to be carefully AS_PATH method, because there may cause problems, this experiment only by elongating Experimental description FastEthernet1/0 PVLAN port type Show pvlan mapping Note that there must be three layers between the DHCP server and the trunk interface. Because the unicast packet is relayed, the source address is the trunk interface configured with ip helper-address . Therefore, when the DHCP server returns the packet, the destination IP address of the packet. This is the interface IP of the interface configured with ip helper-address . As shown in the figure, R1 and R2 open the LOOPBACK interface with the addresses 1.1.1.1 and 2.2.2.2/24 respectively . match. As long as the community contains 100:11 or no-export Below, let's look at an example: The configuration of R1 is as follows: External route tag When the GW loses the route to 10.1.12.2 and the connection to ISP2 is also lost, then the default route is taken. Fa0/20 Experimental verification Match one of 123 plus any character plus one of 7 to 9 , such as 167 , 3 spaces 7, etc. This summary route generated locally is 172.16.0.0/16 , NH=0.0.0.0 , weight= default value 32768 , origin=i . The detail route is marked as " s " and is therefore suppressed. RIP version number: Vif PGM Multicast Host interface In R3 on i 0 100 0 100 i 0 100 0 100 i When a data frame is sent from the Hybrid port, the switch determines whether the attribute of the VLAN on the port is Untag or Tag . If it is Untag , first strip the VLAN tag of the frame and then send it ; if it is a Tag ,ccnp 300-101 cheat sheet, send the frame directly. 0 00:11:53 As discussed above, we did not deploy any strategy. In this experiment, R4 is preferred as 3.3.3.3, that is, R3 is the next hop to the 100 network segment. The reason is that the BGP RouterID of R3 is smaller than the RouterID of R5 . When BGP compares decision rules, it always compares to the RouterID, which is preferably small, so R3 is chosen .