ccnp switch v7.1 quiz-chapter 10

ccnp switch v7.1 quiz-chapter 10

Verify set ip default next-hop MED , choose 3 Neighbor 4.4.4.4 remote-as 345 Enhanced Interior Gateway Routing Protocol (EIGRP) ISO IS-IS There are 2 forwarders (1 active) Forwarding delay Difficult to resolve The cost of the route. Interface fast0/1 A BGP neighbor has an impact only on the router. It can be understood as a weight value. The larger the priority, the higher. The value is in the range 0-65535 . Network 30.30.30.0 mask 255.255.255.0 R2#sh ip route No-advertise no-export Experimental phenomena: 5.5.5.5 Configure EIGRP unicast updates: The composition of regular expressions Use the clear port-security configured command to clear all manually configured security address entries. Use the clear port-security all command to clear all security address entries. Redis static route-map test Ip arp inspection limit rate none , is unlimited 100 Next Hop Configuration example: 8 Peer group Established Then the NH of this BGP route is the interface IP of the announcer . EBGP neighbors generally use the other party's direct interface IP to refer to the neighbor . However, if the EBGP neighbor is established by using the LOOPBACK interface , the NH is the update source address of the EBGP neighbor. (Of course, the EBGP neighbor does not use the LOOPBACK interface to establish a neighbor.) Router bgp 300 Use as-path access-list to match routes IP Routing Overview 5 A frame whose type field has a value of 0800 represents an IP protocol frame. 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 , send the frame directly. 1 Local origin After the MAC sublayer of A is added to the MAC address and the LENGTH field, it is sent to the data link. 10.1.13.1 4 3 -------------- Between ASs , and within AS , BGP hopes that the IGP protocol can be handled by itself, so the administrative distance of IBGP routes is set to a large AD value of 200 . 1 For example, change the COMM value of a route of AS12 to 10000 , and the RFC uses hexadecimal to indicate the COMMUNITY attribute, while CISCO Locally find a route to the neighbor and try TCP three-way handshake. Waiting for completion, the authentication is completed during TCP setup. If the TCP connection is not up, enter the Active state and try to connect repeatedly. protocol ? Route tag Tag 73 Active: capita ask if the other side can/will ... IP protocol number 89 In addition: when the spanning tree reconfigures the new root port, other interfaces flood the network with Switch(config-if)# ip address 192.168.10.254 255.255.255.0 The above command calls the defined policy-list in the route-map ; multiple policy-lists can be called in a route-map . B is passed to its IBGP neighbor C (doing a reflector), then on C , the route NEXT_HOP is still the A router (update source IP ) Debug dhcp detail / / Use this command to delete Y Full-duplex MAC : The physical layer operating mode provides access when full-duplex. Tool overview 62 Implementation points None Match ip address 1 set metric 10 If you don't feel it (such as the middle switch ), you can't switch automatically. The router will still throw data to this next-hop . The IGP Origin, Metric 0, localpref to 100, Valid, Internal, Best Originator: 1.1.1.1, the Cluster List: 2.2.2.2 Network xxx mask yyy route-map zzz Network 100.0.2.0 mask 255.255.255.0 BGP , but the BGP routes ( BGP packets) between the BEs can be forwarded through the CD . For the CD , these BGP messages are regarded as normal IP packets and are directly forwarded and not viewed. Match interface matches the route with the next outgoing interface as one of the specified interfaces. Next Hop 5.5.5.5 Origin IGP, metric 0, localpref 100, valid, external, multipath, best C 192.168.12.0/24 is directly connected, Serial0/0 1.0.0.0/24 is subnetted, 1 subnets _ 200 R2 On this topic, the individual feels that there is no need to study it. It does not make much sense for the research of class-based routing protocols. No matter the actual application or the LAB exam, it is no longer involved, and you are interested in making it yourself. The length is 2 bytes, indicating the frame type. When the value is 0x8100 , it indicates an 802.1Q Tag frame. If a device that does not support 802.1Q receives such a frame, it will discard it. LocPrf [Experiment 2 ] There are subnet routes (match); there are default routes, subnet routes Route summary Interface mode, configure the interface as DAI trusted , the default is untrusted ! Just match (65000) Path attribute We restore the experimental environment to the basic configuration: BGP neighbor relationships are as follows Network 11.11.11.0 mask 255.255.255.0 Router bgp 64512 DTP Interface f0/1 At the same time network 1.0.0.0 , then 1.0.0.0 will be announced OK 32 bits Switchport Sw(config)#vlan 201 An important improvement in RSTP is the rapid transition of ports. The traditional STP algorithm needs to go through several timers before transitioning an interface to the forwarding state. In order to get a fast convergence of the network, we may adjust the timer, but this method may affect the stability of the network. RIP secondary address problem description In general, we believe that the attack behavior is mostly from the terminal's PC , which may be poisoning or hacking. Therefore , the interface connected to the terminal PC is configured as a DAI untrust interface, and the interface between the switches is configured as a trust interface. About recursion of routes 100 Additional instructions: Routing? The key point is that R2 , through the R2 deployment redistributed routing , routing information may be selected in different transmission routes between the domains. / / Modify the default parameters Route tag TAG ( to be revised ) The idea of ​​configuration is that on R2 , you want to grab the fast0/0 port (that is, the one sent by R1 ) and go to the traffic of 30.30.30.0/24 . However, if the R1 release carry on a tag external routes, and R2 re-released on OSPF into RIP , tag lost: Note that,ccnp switch v7.1 quiz-chapter 10, EIGRP the metric is a mixed type, metric. 1 100000 100 255 1500 Parameters specified here, from left to right is the bandwidth, delay, load, reliability, the MTU . It can be flexibly set according to actual needs. After the above configuration is completed, R2 will be in the routing table. 10.1.12.1 from 10.1.12.1 (1.1.1.1) Ip arp inspection log-buffer logs number_of_messages interval length_in_seconds Note that this is not to consider the route rejected in the advertise-map when building the summary route , but it cannot be filtered by adv-map alone. 200 Track 2 rtr 2 reachability RIP also supports tags , but it must be version 2 . Lab 2 : The access switch is plugged into option82 and the core switch is relayed. Network An important improvement in RSTP is the rapid transition of ports. The traditional STP algorithm needs to go through several timers before transitioning an interface to the forwarding state. In order to get a fast convergence of the network, we may adjust the timer, but this method may affect the stability of the network. The route originated from the local route (such as the local network or aggregate ), that is, the next hop is 0.0.0.0 ( in the BGP table , the next hop of the route advertised by the current router is 0.0.0.0) / / Map the port to pVLAN Use the dynamically learned MAC address to form a secure address entry. Show ip b rib-failure Bridge using these 4 steps to save each port received the " best " of the BPDU a copy. When each BPDU arrives, it will check according to this 4- step decision step to see if it has a better BPDU saved on the port . If it is, it will be updated. Bgp default local-preference 500 // Modify the default LP value The configuration of R2 is similar. After the configuration is complete, the RIP messages are exchanged between R1 and R2 , and the unicast is performed, so that the PC will not be affected. If R1 turns on auto-summary and network 1.0.0.0 mask 255.0.0.0 , it is advertised to R2 summary route 1.0.0.0/8 Revoked route Subopt : sub-option number, if it is circuit ID , the value is 1 , and the remote ID is 2 BGP federation *> Y This mode is the most worthy of reference . It is based entirely on other switching modes. The focus is on billing, monitoring, and network management of packets flowing through . So in fact, it is very simple, as long as the prefix and mask part of the route, respectively, use the source and destination parts of the ACL to match. Port number 520 * i DHCP relay experiment In the above figure, the configuration revision number of server and client is the same, but the vlan information is different. At this time, an error will be reported, prompting md5 digest checksum mismatch Private VLAN ( PVLAN ) Root modifies its own configuration BPDU to advertise the entire switching network about topology changes. Root sets the topology change ( TC flag) for a period of time in the configuration BPDU . This time is equal to the forwarding delay + Max. Age , the default is 35S. R1 and R3 , R2, and R5 establish an EBGP neighbor relationship. VLAN is a very fundamental working mechanism of Layer 2 switches. Layer 3 interface: routing interface ( no swithport or called routed port ), SVI interface (1) Declare the loop port 2.2.2.2224 Network If R1 turns on auto-summary and network 10.0.0.0 , the subnet will be automatically summarized to R2. NEXT_HOP on NMBA network Within the federation, both R3 and R4 belong to AS64512 . For R4 ( AS64512 ), R5 belongs to AS64513 , but for the federal outside, R3R4R4 is AS345 , and external extremities do not know that AS64512 and 64513 exist. Next turn on DAI on SW1 : PS : At present, the Ethernet frames we use are basically Ethernet II frames. Then according to our thinking, on the R4 should be able to see the choice of 100.0.1.0 is R3 is 3.3.3.3 , go to Integrated pvst functionality and publicization 345 ; R3 has a federated IBGP neighbor R4 . ( FraIue check sequence ) Show ip bgp 10.10.10.0 on R3 The configuration of R5 is as follows: Each pVLAN includes one primary VLAN and multiple secondary VLANs . All secondary VLANs are mapped to the primary VLAN . Clear ip bgp {neighbor-address} Put all the routing entries + mask into the TCAM entry, which is the "row" in the figure. The binary 0 and 1 must match, and x does not matter. When I look for a destination, for example, look for " 01101 ": 200 201 300 32768 Network No-export 0-65535 ( 0x00000000-0x0000FFFF ) and 4294901760-429496729502710046 Configure OSPF unicast updates: Hostname R1 interface s0/0 Route filtering or execution strategy during redistribution Local origin Neighbor 3.3.3.3 remote-as 345 SW1#sh int trunk STP operation Non- Route-map ( automatic ) mode : R5 will receive BGP routes for the 10.0 network from R4 and R3 at the same time . R5 will first prefer R3 because the route that R4 passes to R5 keeps NEXT_HOP and is still R1 . Therefore , the next hop of this route from R4 on R5 . Unreachable, R5 is preferred to R4 by modifying the next hop to itself after R4 modification . DUAL AS TCP connection establishment was successful, starts sending Open package, Open packet carries establish parameter negotiation peer. In another case, the idea is still the same, RR and Client Undoubtedly, R3 will preferably OSPF the B route, since OSPF the AD small, so that R3 is formed suboptimal paths, which go B segment will choose R1-R2 -R4-R5 this path. Furthermore, in the routing table of R3 , the route on the B network segment is O , then even if R3 does a re-release from RIP to OSPF , the re-release is definitely a failure, because we have said before, the routing protocol is heavy. The release will only live in the routing table, and the routing table on the B is OSPF , so the re-issue fails.