ccnp route study group

ccnp route study group

At this point, the direct connection is re-released on R2 , and it is found that 1.1.1.0 has not been re-released into RIP. If there is a tag , compare the VLAN tag of the frame with the PVID of the port . If the two are consistent, proceed to the next step; otherwise, discard the frame. Configuration command If there is an error, enter the OpenConfirm state. 100 100 i Two routes, on R2 we introduce these two routes using re-release : No confirmation mechanism, anyone can initiate an arp request or response The packet is captured as follows ( R3 sends the BGP update package to R4 ): 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 cisco The mapped ethernet vlan will be blocked 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. The routing between the internal LOOPBACK of the AS can be learned separately. Both R1 and R3 update the route of the 100 network segment to R2 . Without any policy, the BGP routing rule will always be compared to the RID , and finally the route of R1 is preferred . Match ip address 1 If RP2 matching route exists in the BGP table, RP2 is advertised ; if RP2 hangs, RP1 is advertised. If the router accepts the parameters of the neighbor in the OPEN message, it will answer a keeplive message, and send the message for the period of 1/3 of the holdtime (but not less than 1S ). CISCO defaults to 60S . If the hold time is 0 after negotiation , the keepalive keep-alive message is not sent . / / See which routes are suppressed If it is access mode, the vlan must be the same. Ip address 5.5.5.5 255.255.255.0 NEXT_HOP on shared Media (operation on shared media) Option 82 can contain multiple suboptions , and rfc3046 defines the following two: 10.1.23.2 The maximum survival period in the discard BPDU before the bridge used to store BPDU time default 20S . If consecutive receive 10 th bpdu Interface fa1/0 100 Network 100.0.1.0 mask 255.255.255.0 EBGP neighbors must be directly connected to establish an EBGP session. but Neighbor 5.5.5.5 ebgp-multihop 3 Paths: (1 available, best #1, table Default-IP-Routing-Table) Flag: 0x820 PVLAN port type The TCP connection was not successfully established and the TCP connection was tried repeatedly . Bgp inject-map RP_mingxi exist-map RP_huizong copy-attributes Traffic share 1 Next hop address: The IP address of the interface of the neighboring router that needs to pass to reach the destination . *> Solution 2 : Free arp R1(config-router)#summary-address 10.0.0.0 255.0.0.0 tag ? None Interface fast0/24 CISCO data forwarding mode 13 If a psec port is punctured into err-disable , you can use the following methods to restore the state of the interface: All devices in a VLAN are in the same broadcast domain, and different VLANs are different broadcast domains. Hash At the time, it is already " 200 i ", so doing prepend can only be inserted in front of 200 i , please pay attention to the difference from the previous one. 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. Routing Information Protocol Route redistribution Fa0/20 Holddown timer expired Ip route 172.17.0.0 255.255.255.0 192.168.12.1 In 802.1q the native vlan is untagged, using Dot1q switches all unmarked frame is forwarded to the native vlan in the ISL on all data frames, including native vlan encapsulation, so if the package is not received The data frame will be discarded (the ISL does not have the concept of a native VLAN ). Weight Configure the maximum number of secure addresses allowed for Port-Security . R3 and R4 , R4 and R5 establish IBGP neighbor relationships, and R3 R4 R5 uses LOOPBACK as the update source and refers to the neighbor . Ip default-gateway 192.168.100.254 Interface fast0/0 Flooding the MAC table to the above port CODE : 82 Rapid Transition to Forwarding State 3.3.3.3 Clear ip bgp soft in // Inbound soft reset, locally send route-refresh to all BGP neighbors 2) Activate TC while timer , and then send the TC- set BPDU out from all non-edge designated ports and root ports . In this way, topology change information quickly floods the network. Name server R3 , R4 , and R5 each create a LOOPBACK interface with an IP address of xxxx and x is the number of the router. Detailed rules OSPF 10.1.12.2 The Control field is composed. Standby is 10.1.1.252, priority 100 (expires in 7.572 sec) IP Of course, the subnet 172.16.0.0/16 can be further subnetted to get 172.16.10.0/30 or even 172.16.10.1/32 , then if these prefixes exist, when I am going to find 172.16.10.1 , who's What is the highest match? Obviously, is the host prefix of 172.16.10.1/32 , or host routing? This is the longest match principle . ? // AS200 is the Primary AS and is used to configure the BGP process. Content Addressable Memory Table content addressable memory Do not send outside local AS (well-known community) 3.3.3.3 ? Due to the existence of the principle of horizontal splitting, BGP requires that the IBGP be fully interconnected within the AS (here, the neighbor command specifies). (The root cause is in 1 state change, last state change 00:07:24 MAC address is 0007.b400.0101 (default) Owner ID is cc00.043c.0000 200 Access port processing frame process Note also that, because the R4 and R5 for the federal EBGP neighbor relationship, so there are also TTL is 1 problems, if they use the loopback interface to establish BGP relationship, it needs to use to neighbor 5.5.5.5 ebgp-multihop 3 command. Next is the re-release of EIGRP to OSPF : R2(config-router)# distribute-list 1 out If the interface is trunk , set the trunk protocol type BGP is a classless routing protocol, a distance vector routing protocol, and automatic summarization is turned off by default (this depends on IOS ). Neighbor 1.1.23.3 distribute-list 1 out LocPrf Match ip address prefix-list 1 router bgp 1 8 8 8 8 ! 100 i Rule validation ( AS_SET type AS_PATH ,ccnp route study group, i.e. {} in the AS number in AS_PATH when calculated as a hop) BPDU sending bridge ID Interface fast0/1 Route-map test permit 20 match ip address prefix-list 2 set metric 200 Knowledge review At this time, if another PC accesses the port, the port-security interface will receive a new data frame of the MAC address in the non-secure address entry , and the triggered violation action is given to the interface. Will be err-disable off. At the same time, a snmp trap message is generated . In addition, under the interface, the Security Violation Count will be incremented by 1. Remote-ID suboption fields Suppose we have several subnets: LLC sublayer 8.3.4 Questions 104 Fa0/20 Cc01.043c.0000 (10.1.1.252) Both RSTP port status Load balancing Since the configuration of the first experiment Rl , therefore R2 Flights 13 segments, it is preferable that Rl , this time in R2 a clear click BGP neighbor Rl , and the Rl BGP connection DOWN , R2 Flights 13 routes and preferably the R3 , After R2 and R1 restore the BGP connection and receive the 13 route update of R1 again , R2 is still preferred to R3. The interface will not send BPDUs , and will also ignore received BPDUs. To configure globally, use the command: SW3(config)# spanning-tree portfast bpduguard default , which activates bpduguard on all interfaces that activate the portfast feature : The ethernet , fast ethernet , and serial interfaces of the Cisco 1600 , 1700 , 2500 , and 2600 series routers use fast switching by default . R5 routing, naturally the last is the route from R5 , reflection to R3 is no problem. The aggregate-address command is used for BGP manual summarization. The following is a detailed explanation of all subcommands of the command. Configure the aging time type. If you select absolute , that is, absolute time, you need to use the aging time command to set the specific value of the aging time. After the command is pressed, all the security address entries built by the dynamically learned MAC will start. The aging time countdown. If it is the inactivity keyword, the countdown will only start when the dynamic security address entry is inactive (for example, if the host is offline or hanged).