ccnp tshoot exam preparation

ccnp tshoot exam preparation

? neighbor RC-ip the EBGP Multihop- 2 // jump between them number 2 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. Redis static route-map cisco Acl-match matchlog —Logs packets based on the DAI ACL configuration. If you specify the Data forwarding mode 13 Select the route with the smallest neighbor IP address ( the address of the neighbor in the neighbor configuration of BGP , that is, the update source IP of the neighbor ) 100 Aggregate-address summary address as-set advertise-map 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. Configuring static routes Port-Security deployment considerations 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 ). A single RR may have a single point of failure problem, so from the perspective of redundancy, there can be multiple RRs in a cluster , Client and each PVLAN configuration creates the primary VLAN : Weight For dynamic address allocation From this experimental analysis, the automatic aggregation of BGP is obtained , and the main class network boundary is not required, which is different from the IGP . BGP federation Establish BGP neighbors Lab 3 : The access layer switch is inserted into option82 , and the upstream core switch also turns on dhcp snooping. 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 . 2/1 BGP path/bestpath attribute entries using 248 bytes of memory 0 BGP route-map cache entries using 0 bytes of memory Router bgp 345 The description of several fields ( ISL header) in the above figure is as follows: Vlans allowed on trunk Update behavior If R1 is configured as follows: Reviewer Load balancing When the router performs a classless route lookup (by default, ip classless ), it does not pay attention to the class of the destination address. It performs the longest match between the destination address and all known routes bit by bit . Community-List. 11 the permit IP no-export (or no-export into NO-ADV ) When ISP1 is down, and the GW does not detect it (that is , the interface of GW connected to ISP1 is not DOWN ), the traffic of PC access 100 is still thrown to ISP1 , which is disconnected. If the interface is trunk ,ccnp tshoot exam preparation, set the trunk protocol type RR transmitting the AS ( Transit the AS ) is divided into small units, i.e. reflection clusters 10.1.13.1 C Where min ( holdtime ) is the minimum value of holdtime between two BGP neighbors. Path Re-routing interface connecting the local release, static routing weight is 32768 Etherchannel port does not support pvlan Length of the suboption type Once the bridge is aware of a topology change in the network, it will send a configuration BPDU with the TC set , and each switch in the network will pass these set BPDUs , which will make each individual bridge aware. To the case of topology changes. MTU problem MacAddress Weight RR self-originated route !! The red font part is the number of hops to be increased RIP redistribute directly connected If you do not set Metric , the default 1 -hop neighbor passed (the neighbors directly using this 1 jump as Metric ); redistributed static route default Metric = 1 , use the default-metric can modify this default value, this command No effect on the metric that re-releases the direct connector . When LINK1 DOWN is dropped, SW2 will not receive the BPDU from ROOT , so it considers its root and starts to SW3. i EIGRP Server, however, if there is a private DHCP server in the intranet , then it will affect the network, for example, the client is private. The greater the weight , the more priority Router bgp 345 RouterB routing 100.100.100.0/24 passed to A , NEXT_HOP is 10.1.123.2 ; basic concept If the penalty value exceeds the pre-set threshold - the suppression limit: the penalty value reaches this threshold, the route is suppressed, ie not released, until the N half-life, the penalty value is reduced to another threshold: re-use threshold (de-suppression threshold) ), the suppression of the route is lifted. TCAM table Weighting 100 (default 100), thresholds: lower 1, upper 100 The above command only re-advertises OSPF NSSA routes into BGP. Route-map LP permit 20 match ip address pref 2 set local-preference 200 IP routing troubleshooting? {100,200} i Access-list 1 permit any route-map PBR permit 10 match ip address 1 // This command is used to advertise the real AS number of the AS outside the federation . Port-channel interface cannot be the destination interface of SPAN Add redundant routing 9 Class and classless route lookup mode 9 If the number exceeds xx , disconnect the BGP connection with the neighbor and reconnect after 2 minutes. It is allowed to write multiple next hop IPs , but these IPs must be the interface IP of the directly connected router . SW1 (config-if) # glbp 1 priority 120 !! Priority defaults 100 , the highest priority becomes the AVG , under equal priority, the maximum IP interface becomes the AVG . Default " AVG preemption" is off Community: inherits the community of all detailed routes , forming a list Metric =0 Y SW1(config)# interface fast0/23 Topology change mechanism (detection) When a violation occurs, the interface enters the err-disable state. Note that after the DHCP snooping is enabled on the switch , the dhcp packets are snooped. Therefore, when the DHCP attack is generated on the network, the performance of the switch will be seriously degraded. Therefore, you can limit the number of interfaces that can be received on the interface. Number of DHCP packets. Configure the number of DHCP packets per second that an interface can receive. The range is 1 to 2048.