ccnp switch number of questions

ccnp switch number of questions

Since the AS_PATH attribute does not change within the AS (only when the route leaves the AS ), the AS inner loop has a horizontal splitting mechanism, and the route reflector actually relaxes the horizontal splitting principle. This will bring some hidden dangers to the loop. Therefore, the route reflector needs to use the following two attributes to prevent loops: We can let DAI do further verification by configuring some additional options . There are three optional keywords, dst-mac , ip , src-mac If an external route carrying a tag is advertised on R1 and OSPF is redeployed to EIGRP on R2 , then the route is advertised. SA sends the original switch MAC of the frame No need to connect directly. Only TCP connectivity is required. Then use set comm-list 1 delete to delete, pay attention to the above community-list writing, use multiple lines, the experimental verification results are in Switched network management *> 11.11.11.0/24 Finally: R4#sh ip b ? Network 4.4.4.4 0.0.0.0 area 0 In RIPv1 based on the increase Interface loopback0 Ip route 172.17.0.0 255.255.255.0 192.168.12.1 Whenever a reflector receives a route whose Cluster-list attribute already contains the ClusterID of the cluster , the route will not be reflected based on the purpose of the anti-ring. Y RIP-2 Only Neighbor 10.1.13.1 remote-as 100 Switch(config)# spanning-tree vlan vlan-id priority pri Switch(config-if)# ip address 192.168.10.254 255.255.255.0 The next hop of the path is unreachable. By default, only when all the alternative route from the same AS different EBGP when neighbors, will be relatively MED ; BGP-Always-Med Compare this command, even if the route can be made from a different AS also MED comparison 200 i IP policy routing is disabled Status codes: s suppressed, d damped, h history, * valid, > best, i - internal, r RIB-failure, S Stale 13 CAM is the table that the switch checks when it is used for Layer 2 switching. Note: Using the policy to modify AS_PATH can only be performed on its EBGP neighbors on the BGP router , because AS_PATH is only in the AS. Detect the reachability of the next hop, the default is off Port Vlans in spanning tree forwarding state and not pruned Ip route 0.0.0.0 0.0.0.0 192.168.123.1 Other configuration commands On the other hand, we capture the package: CISCO IOS 12.1 began to fully support dynamic soft reconfiguration of inbound routes. This soft reset method sends route-refresh messages directly to specific neighbors locally . Router ospf 1 Ip route 10.1.2.0 255.255.255.0 10.1.254.1 Sent from the root bridge BPDU number of seconds after (this BPDU survived for how long), each through a bridge are minus 1 , so it is essentially the number of hops to reach the root bridge. Metric problem The following uses an example to illustrate the application of SSAP and DSAP . Assuming that Terminal System A and Terminal System B are to use a connection-oriented and reliable data transmission service, the following process occurs: 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 ": As mentioned earlier, DAI performs ARP legality verification by means of the DHCP snooping binding database . Another basis for legality verification is the manually configured ARP ACL . OSPF multicast packets are flooded on the LAN . This is one of the most common applications of the passive-interface feature. Note that different routing protocols operate differently on the passive-interface . 46-1500 bytes; set mtu xxxx under the interface , which means this, and generally does not allow Network without mask is a class declaration, plus the mask is no class declaration It is actually an order with the following, so knocking in, show has become the following stuff. byte ? BPDU , then he will send again. Therefore,ccnp switch number of questions, for 802.1D , the root bridge will send BPDUs to all interfaces continuously . The non-root bridge will receive BPDUs from its own root port and send BPDUs to its designated port . Non-designated ports will not send. BPDU 's will only listen. Unicast update 100.1.1.0/24 . At the same time, this re-release becomes the summary route of OSPF . Even if two ASBRs are returned , because there is a static summary route locally, the summary route of OSPF is directly ignored , and sub-optimal is not generated. Path, this route will not be re-released back to RIP and cause other problems. The shorter the AS-Path, the higher the priority. Capture the package as follows: Default route 108 Configuration and implementation Port-channel Ethernet Channel of interfaces Weight Combine object tracking to detect the reachability of a remote device (or IP ) Tag rewrite with Fa1/0, 10.1.13.3, tags imposed: {} via 10.1.12.2, FastEthernet0/0, 0 dependencies 2 : RIP-2 ; Portfast Example 3 of ip community-list (strictly matching community ): These two attributes are used to prevent ringing within the federation and member AS . FastEthernet0/0 Limit the number of access hosts per port (number of MAC addresses) Neighbor IBGP_peers update-source loopback0 neighbor IBGP_peers password cisco Router bgp 345 R1(config-router)# network 12.12.12.0 mask 255.255.255.0 R1(config-router)# distribute-list prefix 11 out It can be activated in interface mode or in global mode, which is different. If the switch does via a untrust interfacing a downstream switch, and release of the desired received by the interface, with a downstream switch sends out option82 of DHCP messages, use the global command: IP Information Option DHCP Snooping the allow-Untrusted , while Because it is a DHCP packet received through the untust interface , a DHCP snooping binding database entry is created based on the result of the interception .