ccnp r&s blueprint

ccnp r&s blueprint

Beta [Note] If the interface is passive , but at the same time the network interface in the routing process, the interface will not attempt to send updates or establish neighbor relationships, but the network segment where it is located will still be declared into the routing process. About UDLD The configured commands are simple: R3 The use of one-arm routing can solve the problem of data exchange between VLANs , but there are also various drawbacks, such as the interface of the router, the load is too large, and the traffic needs to enter and exit the interface or link twice, causing the load on the trunk link to be too heavy. And the scalability is particularly poor. The two networks of network 100.0 on R1 and R2 enter BGP , then the BGP table on R4 : On R3 : Interface fa1/0 For ISL packages, MTU=1548 ( explained below ) R1 RIPv1 If you try to activate port-security on an 802.1X interface, you will get an error and the port-security feature will not open. Bgp dampening half-life reuse limit limit limit maximum inhibition time The longest match Knowledge point R2(config-router)# distribute-list 1 in fa0/0 [Experiment 7 ] There are subnet routes (no match); there are default routes Configuration command The AVG is responsible for responding to the ARP request of the PC to the gateway , while the AVG is responsible for the allocation of the virtual MAC . AVG can be flexible depending on the load balancing mode PC 's ARP request response. STP topology change We know that the AD value of a static route is 1. The above configuration method actually changes the AD value of the static route to 10 . In this way, we have two default routes, one for the telecom exit, the AD value is the default 1 ; the other points to the education network exit, and the AD value is 10 . Then after BPDU format and operation Multi-vendor routing environment 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) LocPrf 1,20,30 The configuration is as follows: Route-map first acquaintance SW1(config)# interface vlan 10 Note that this address is the address used by the neighbor to establish a BGP neighbor relationship. Solution: Use distribution lists to avoid the sub-optimal routing problem With Root Guard DMZ-Link Bw 193 kbytes is an extended community attribute, so if you want to pass this value to the just IBGP neighbor in the AS , you need to add send-community and add the extended keyword. Corresponding hwidb fast_if_number 4 Corresponding hwidb firstsw->if_number 4 BGP policy accounting on input is enabled. Neighbor 10.1.12.1 capability orf prefix-list send neighbor 10.1.12.1 prefix-list FILTER in Neighbor RC-ip remote-as 100 ADJ-RIBs-OUT announces routes to peers After completing the configuration, R2 show ip route In the ETHERNET_II frame, the upper layer protocol is distinguished by the Type field. At this time, it is not necessary to implement the LLC sublayer, and only one MAC sublayer is included . And IEEE802.3 frames in the LLC sublayer of the link layer in addition to the traditional definition of services, but also adds a number of other useful features. These features are provided by the DSAP ,ccnp r&s blueprint, SSAP, and Control fields.