interview questions for ccnp r&s job

interview questions for ccnp r&s job

14 packets, 7640 bytes Ip route 172.16.1.0 255.255.255.224 192.168.23.3 !! Press the longest match, go this one Tool overview 62 Peer using Route-map in the case of ) : Choose PAgP or LACP IP Routing Overview Router ospf 100 version Ip address 100.0.2.1 255.255.255.0 Next Hop Experimental example: Called when republishing Neighbor 4.4.4.4 route-map LP out 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. Network 100.0.2.0 mask 255.255.255.0 neighbor 10.1.25.5 route-map test out Network Experimental results: Configure on R2 as follows: *Mar 1 00:11:47.891: ICMP: echo reply rcvd, src 2.2.2.2, dst 192.168.123.3 1 : RIP-1 ; Rl , R2 formed between the EBGP neighbor relation (using respective LOOPBACK port) at the same time, Rl in the BGP process network 1.1.1.0 mask 255.255.255.0 incorporated 1.1.1.0 Network On a specific interface, if no BPDUs are received for three consecutive cycles (or max-age timeout), the STP data on the interface will age rapidly. As a result, the BPDUs are somewhat similar to the keep-alive mechanism between switches . This fast aging mechanism helps to respond quickly to topology changes. Modified OSPF the AD value RIP and OSPF re-release R2(config-router)# distribute-list 1 out fa 1/0 Set as-path prepend 6666 Spanning tree is used to solve this problem ip default-network Flex links and Port-Security are not compatible with each other Advanced Features So they will be put into the IP global routing table, labeled B . Load distribution: 0 1 0 1 0 1 0 1 0 1 0 1 0 1 0 1 (refcount 1) Le-value ] Note the tool. Here is actually a summary of the deployment of static routes, of course, in addition to we can also route summary in the dynamic routing protocol, almost all dynamic routing protocols support route summarization. Activate Port-Security on the interface SwitchB first detects the topology change, and then generates the TCN BPDU and sends it out from the root port (because the root port is in the direction of the root bridge), B will continuously send the TCN BPDU until the designated switch C sends a TCN ACK to confirm. Metric Connected, and can update and deliver BGP routes. Block the interface of SW3 . The configuration of R2 is as follows: 1 IP Routing Overview 5 Configure the DAI to occupy the size of the log buffer (the maximum number of entries), the interval is 0-1024 100 i Add configuration on SW2 : (global configuration mode) ip dhcp relay information trust-all It means for VLAN100 traffic, not to log the ARP ACL discarded packets match 2 : RIP-2 ; Migrate to the Established state if you receive a keepalive message from the other party Local origin This feature uses the CDP table of the device to determine the reachability of the next hop. The IGP routes into BGP when the associated Route-map settings Ip route 0.0.0.0 0.0.0.0 192.168.123.1 Id The GW configuration is as follows: The Layer 2 switch searches for VLAN configuration information based on the destination MAC address and VLAN ID of the frame, and determines from which port the frame is sent out. Internal 0 packets,interview questions for ccnp r&s job, 0 bytes 8 bits ^100$ Metric LocPrf Weight Configuration example IBGP re-advertises routes to OSPF Configure the switch to verify that the source MAC address in a DHCP packet received on untrusted ports matches the client hardware address in the packet. The default is to verify that the source MAC address matches the client hardware address in the packet. //The details are not released. Route-map PBR permit 10 match ip address 1 ACL 70 Trunking The length of the AS_PATH is to influence the path selection. It is not recommended in the actual environment. The redistribute local route learned from the IGP routing protocol enters BGP , and the MED value inherits the metric in the IGP protocol. : 1 to 3 When ISP1 is down, and the interface of GW connected to ISP1 is DOWN , the data of PC accessing 100 network is switched to ISP2. One point and one asterisk, match all, any NEXT_HOP on shared Media (operation on shared media) The configuration of R3 is as follows: Knowledge review At the same time, R4 also received the 100.0 route introduced by R2 , but it was not passed to R3 . This is the principle of horizontal splitting of IBGP : " BGP routers will not pass IBGP to him and pass it to other IBGP neighbors." Choose PAgP or LACP For example, in the above figure, the network has two exit lines, which are connected to ISP1 and ISP2 respectively . If you want to let the intranet student users access the ISP1 line when accessing the external network , and the ISP2 line when the teacher network segment accesses the external network , This is not possible with traditional routing because traditional IP routing does not care about the source address of the data. This must be done with PBR .