ccnp r&s tshoot 300-135

ccnp r&s tshoot 300-135

? Vlan 10 Via 10.1.13.3, FastEthernet1/0, 0 dependencies Exactly the same, except that the list of AS numbers belong to the local Federation AS Ip route 100.0.0.0 255.0.0.0 null0 BGP routing table entry for 11.11.11.0/24, version 2 Interface fa1/0 Initially, R3 can learn three loopback routes from R1 and 192.168.12.0/24 routes. Now we don't want R3 to learn the route to 192.168.3.0/24 , then we can configure it on R2 as follows: The configuration is as follows: Pointer to the target: The pointer does not point to the router's direct connection to the destination network or to another router address in the directly connected network , or to the local interface of the link. A router that is closer to the target network is called a next hop router. * i100.0.1.0/24 Network 10.1.45.0 0.0.0.255 area 0 Planning Principles Neighbor 10.1.23.3 local-as 201 [no-prepend] [replace-as] [dual-as] UDP 16 Redirect time 600 sec, forwarder time-out 14400 sec Preemption disabled Switch(config)# vtp password x C 10.1.12.0 is directly connected, Serial0/0 After the Port-Security feature of an interface is activated, the default maximum number of secure addresses is 1 , that is, the interface uses its dynamically learned MAC address as a secure address without manually configuring a secure address. This interface is equivalent to being exclusive to the MAC (the device to which it belongs). And the default violation is shutdown * i100.0.1.0/24 Router bgp 300 Document number Second layer bundling AS_PATH is a recognized attribute that describes the sequence of AS numbers that will pass through to the destination network . The most important role is anti-ring. If the BGP speaker finds that its AS number is located on the route received from the external peer, the route is ignored. It is used to preferentially send packets with high priority when the switch is blocked. When a data frame is sent from a trunk port, the frame is sent directly. From the message we can see that the size of this IP packet is 1500 bytes. 100 The problem that the static route associated with the outgoing interface is re-released. Distance 100 192.168.12.1 0.0.0.0 1 R1R2 establishes an IBGP neighbor relationship and maintains two BGP connections. The local interface is used to establish a neighbor relationship with the peer directly connected interface. Request the entire routing table: The request message contains a single route with an address family identifier field of 0 (address 0.0.0.0 ) and a metric of 16. The device receiving the request will unicast it back to the requesting address. The entire routing table. Initially, R3 can learn three loopback routes from R1 and 192.168.12.0/24 routes. Now we don't want R3 to learn the route to 192.168.3.0/24 , then we can configure it on R2 as follows: Default 30s , RIP update cycle ? Note 21 The difference between set ip next-hop and set ip default next-hop is relatively simple, it is not resolved here. 100 i Ip arp inspection validate { [dst-mac] [ip] [src-mac] } switchport trunk encapsulation dot1q switchport mode trunk C Cisco Express Forwarding Router ospf 1 Switch(config)# ip default-gateway 192.168.255.254 !! Set the gateway for the access switch itself Router bgp 123 When the RR receives a route from an EBGP neighbor and passes it to the client or non- client , CLUSTER_LIST is not created . 100 Match ip address prefix-list 1 2 SW1(config-if)# glbp 1 10.1.1.254 Next Hop 0 100 i Neighbor 10.1.23.3 remote-as 13 ? Index The experiment is completed here, we set MARK , then we will analyze the impact of various attributes on the routing. ---- -------------------- Portfast,uplinkfast, backbonefast No confirmation mechanism, anyone can initiate an arp request or response Isolated Number of existing VLANs 8 The TCN BPDU contains three fields, which are identical to the first three fields except the type field of the configuration BPDU . FastEthernet0/0 100 Fa0/20 RFC1403 BGP OSPF Interaction The route originated from the local (such as the local network , or aggregate ), that is, the next hop is 0.0.0.0 ( in the BGP table , the current path) Ip route 1.1.1.0 255.255.255.0 serial 0/0 Inter- VLAN routing BPDU format and operation SW1#show ip dhcp snooping binding Metric switchport trunk encapsulation dot1q switchport mode trunk If the exact-match keyword is not added , the community-list will match the 11 and 12 routes. After adding, it will only match the community. When an RSTP switch detects a topology change it will: Hash 100.100.100.0 [20/0] via 10.1.23.3, 00:02:57 Switch(config)# interface vlan 255 Ip route 0.0.0.0 0.0.0.0 serial s0/2 OSPF and EIGRP re-release OSPF . In this way, for R4 , it goes to 192.168.1.0 , there is a sub-optimal path , that is, around the long way, take R2-R3-R3-R5 R2(config)# access-list 1 deny 192.168.3.0 R2(config)# access-list 1 permit any R2(config)# router ospf 1 Prefix-list Note that PEs in an MPLS VPN environment do not have this limitation. ip default-gateway *> 11.11.11.0/24 Isolated Next we SW1 of the Fa0 / 20 interface, do switchport allowed vlan the Remove Trunk 10 , the vlan10 traffic pruned, this time the PC between can not ping pass, go R1 speaking about: BGP must be identifiable and the update message must contain Bgp bestpath as-path ignore Sw1(config)#interface range fastEthernet 0/1 – 2 Do not advertise to any peer (well-known community) Do not export to next AS (well-known community) One-arm routing \ Summarizing on R3 suppresses all details, but if you only want to release partial details for a particular neighbor, you can use unsuppress-map d routed ( dampening ) route, the route is punished, although the route may be normal at present, but will not be notified before the end of the penalty period If R1 is configured as follows: About route reflection clusters !! On R1 ,ccnp r&s tshoot 300-135, Fa0/20 port trimmed only vlan 1 and 10 , because this VID Known via "ospf 1", distance 110, metric 20 Ip prefix-list 1 permit 11.11.11.0/24 route-map test per 10 SW1#show ip dhcp snooping binding In RIPv1 based on the increase Router ospf 1 Although route summarization is indeed a very very important idea and tool, it is cautious to use. After all, it reduces the routing entries and reduces the granularity and accuracy of the route. Looking at the figure above, a static summary route is configured on the egress router, and the next hop is a Layer 3 switch. The Layer 3 switch configures a default route to send the traffic to the egress router to the egress router. The next hop is the egress router. This network will not have problems when the traffic is normal, but now the intranet users are poisoned, so these PCs start to send crazy.