Explain Route Aggregation in BGP.
Explain Route Aggregation in BGP.
相关考题：
Which attribute allows a VRF to accept VPN routes from another VRF?() A. route listB. route originC. route targetD. route distinguisher
What happens to the 66.66.66／24 route when it is evaluated by this policy? () A. The route does not match this policy.B. The route is rejected.C. The route is accepted.D. The route is accepted, then rejected.
Given the following policy, what happens when the 1.1/17 route is evaluated?（）[edit policy-options] policy-statement test{ from { route-filter 0/0 orlonger accept; route-filter 1.1/17 upto /24 reject; route-filter 1.1/18 exact; }then { metric 6; accept; }A. The route does not match this policy.B. The route is accepted.C. The route is rejected.D. The route is accepted with a metric of 6.
What happens when a route does not match any user configured policies?() A.The route is rejected.B.The route is accepted.C.The route is given a lower priority.D.The route is sent to the default policy.
When you display the routing table by entering the show route command, what does the* indicate?() A.The route is a direct route.B.The route was selected as active.C.The route is a default route.D.The route was learned using a dynamic routing protocol.
Which attribute must exist in the BGP update packet?() A. LOCAL_ PREFB. AGGREG ATORC. AS_PathD. Weight
下面哪个是正确的默认路由（default route）？（）。A、route ip 172.0.0.0 255.0.0.0s0B、ip route 0.0.0.00.0.0.0 172.16.20.1C、ip route 0.0.0.0255.255.255.255 172.16.20.1D、route ip 0.0.0.0255.255.255.0 172.16.10.1150
Which type of EIGRP route entry describes a feasible successor?（）A、a primary route,stored in the routing tableB、a backup route,stored in the routing tableC、a backup route,stored in the topology tableD、a primary route,stored in the topology table
In BGP routing，what does the rule of synchronization mean？（）A、A BGP router can only advertise an EBGP learned route，provided that the route is an IGP route in the routing table.B、A BGP router can only advertise an IBGP learned route，provided that the route is an IGP route in the routing table.C、A BGP router can only advertise an IBGP learned route，provided that the route is an IGP route that is not in the routing table.D、A BGP router can only advertise an EBGP learned route，provided that the route is a metric of 0 in the BGP table.
Which of the following commands should be used to make permanent static route entries that will persist across reboots？（）A、chrootB、route staticC、route addD、smitty route
What happens when a route does not match any user configured policies?（）A、The route is rejected.B、The route is accepted.C、The route is given a lower priority.D、The route is sent to the default policy.
When you display the routing table by entering the show route command, what does the* indicate?（）A、The route is a direct route.B、The route was selected as active.C、The route is a default route.D、The route was learned using a dynamic routing protocol.
下面哪个是正确的默认路由（default route）（）A、route ip172.0.0.0255.0.0.0s0B、ip route0.0.0.00.0.0.0172.16.20.1C、ip route0.0.0.0255.255.255.255172.16.20.1D、route ip0.0.0.0255.255.255.0172.16.10.1150
Which of the following commands will enable you to see the contents of the IP routing table andsend the output to a TFTP server at the same time？（）A、show ip route ∣ to tftp：//192.168.1.1/route.txtB、show ip route ∣ tee tftp：//192.168.1.1/route.txtC、show ip route ∣ include tftp：//192.168.1.1/route.txtD、show ip route ft include tJtp：//19Z168.1.1/route.txtE、show ip route ∣ redirect tftp：//192.168.1.1/route.txt
Which of the following events would not explain excessive CPU utilization？（）A、A large number of BGP sessionsB、A large BGP tableC、A router is configured with the following command： ip route 0.0.0.0 0.0.0.0 fa 0/1D、All interface buffers are continually in useE、A flapping interfaceF、The router sends a large number of ARP requests
Which attribute must exist in the BGP update packet?（）A、LOCAL_ PREFB、AGGREG ATORC、AS_PathD、Weight
Which attribute allows a VRF to accept VPN routes from another VRF?（）A、route listB、route originC、route targetD、route distinguisher
单选题When you display the routing table by entering the show route command, what does the* indicate?（）AThe route is a direct route.BThe route was selected as active.CThe route is a default route.DThe route was learned using a dynamic routing protocol.
单选题In BGP routing，what does the rule of synchronization mean？（）AA BGP router can only advertise an EBGP learned route，provided that the route is an IGP route in the routing table.BA BGP router can only advertise an IBGP learned route，provided that the route is an IGP route in the routing table.CA BGP router can only advertise an IBGP learned route，provided that the route is an IGP route that is not in the routing table.DA BGP router can only advertise an EBGP learned route，provided that the route is a metric of 0 in the BGP table.
单选题Which of the following commands will enable you to see the contents of the IP routing table andsend the output to a TFTP server at the same time？（）Ashow ip route ∣ to tftp：//192.168.1.1/route.txtBshow ip route ∣ tee tftp：//192.168.1.1/route.txtCshow ip route ∣ include tftp：//192.168.1.1/route.txtDshow ip route ft include tJtp：//19Z168.1.1/route.txtEshow ip route ∣ redirect tftp：//192.168.1.1/route.txt
单选题What happens when a route does not match any user configured policies?（）AThe route is rejected.BThe route is accepted.CThe route is given a lower priority.DThe route is sent to the default policy.
单选题Given the following policy: Which action occurs when the static route 192.168.0.0/25 is evaluated by the policy main-policy?（）A The route is not advertised into BGP.A.The route is not advertised into BGP.B The route is advertised into BGP with metric 10.B.The route is advertised into BGP with metric 10.C The route is advertised into BGP with metric 20.C.The route is advertised into BGP with metric 20.D The route is advertised into BGP with default metric.D.The route is advertised into BGP with default metric.
单选题Which command is used to configure a default route?（）Aip route 172.16.1.0 255.255.255.0 0.0.0.0Bip route 172.16.1.0 255.255.255.0 172.16.2.1Cip route 0.0.0.0 255.255.255.0 172.16.2.1Dip route 0.0.0.0 0.0.0.0 172.16.2.1
单选题Which of the following events would not explain excessive CPU utilization？（）AA large number of BGP sessionsBA large BGP tableCA router is configured with the following command： ip route 0.0.0.0 0.0.0.0 fa 0/1DAll interface buffers are continually in useEA flapping interfaceFThe router sends a large number of ARP requests