During BGP configuration on a router that has peered with other BGP speakers, the BGP command aggregate-a ddress 172.32.0.0 255.255.252.0 is issued. However, the peers do not receive this aggregate network in BGP advertisements. Also, the router does not

题目

During BGP configuration on a router that has peered with other BGP speakers, the BGP command aggregate-a ddress 172.32.0.0 255.255.252.0 is issued. However, the peers do not receive this aggregate network in BGP advertisements. Also, the router does not have this aggregate network in its BGP table.Which option indicates a possible reason this command did not cause the router to advertise the aggregate network to its peers?（）

A. Interface NULL 0 is likely shutdown.

B. The next hop IP address must be a loopback address.

C. The BGP command no auto - summary is missing.

D. The BGP command no synchronization is missing.

E. Subnets of 172.32.0.0/22 do not exist in the BGP table.

F. The IGP running on this router does not have network 172.32.0.0/22 installed.

相似考题

1.When implementing BGP confederations, which configuration command establishes the globally unique AS number used with external peers outside your network?()A. bgp confederation asB. bgp confederation systemC. bgp confederation remote-asD. bgp confederation identifier

2.Based on the show ip bgp summary output, which two statements are true?()A. The BGP session to the 10.3.3.3 neighbor is established, but the router has not received any BGP routing updates from the 10.3.3.3 neighbor.B. The router is attempting to establish a BGP peering session with the 10.2.2.2 neighbor.C. The router is attempting to establish a BGP peering session with the 10.1.1.1 neighbor.D. The BGP session to the 10.3.3.3 neighbor is established.E. The BGP session to the 10.2.2.2 neighbor is established.F. The BGP session to the 10.1.1.1 neighbor is established.

3.Above is the output from show ip bgp neighbors command. What is line 21 stating about the BGP connection?()A. the number of consecutive TCP connections to the specified remote neig hborB. the number of total TCP connections that the router hasC. the number of times the router has established a TCP connectionD. the number of neighbors that the router has

4.Which of the following commands causes a router to bring down BGP neighbor relationships?()A. clear ip bgp *B. clear ip bgp 1.1.1.1C. clear ip bgp * softD. clear ip bgp 1.1.1.1 out

更多“During BGP configuration on a router that has peered with other BGP speakers, the BGP comm ”相关问题

  • 第1题：

    Refer to the exhibit. On the basis of the configuration that is provided, how would the BGP updates that come from router R1 be replicated inside autonomous system 65200?()

    A. All BGP updates that are received on router R 2 will be sent to routers R3 and R4. Routers R3 and R4 will then forward those BGP updates to router R5

    B. None of the BGP updates that are received on router R2 will ever be received by router R5

    C. All BGP updates that are received on router R2 will not be sent to routers R3 and R4

    D. All BGP updates that are received on router R2 will be sent directly to router R5


    参考答案：B

  • 第2题：

    You issue the command show process memory ∣ include BGP and notice that BGP is consuming alarge percentage of the router’s memory. Which of the following steps would result in lowering theamount of memory being consumed by BGP？（Choose all that apply.）（）

    • A、Filter unneeded BGP routes
    • B、Run BGP on a different platform that already has more memory
    • C、Upgrade the router memory
    • D、Increase the BGP update timer
    • E、Compress the BGP table
    • F、Use a default route instead of maintaining a full BGP table

    正确答案:A,C,F

  • 第3题：

    Which set of configuration commands configures MBGP on the ERX Edge Router?（）

    • A、router bgp 100 neighbor 192.168.10.1 remote-as 200 address-family ipv4 multicast neighbor 192.168.10.1 next-hop-self
    • B、router bgp 100 neighbor 192.168.10.1 remote-as 200 address-family vpnv4 multicast neighbor 192.168.10.1 activate
    • C、router bgp 100 neighbor 192.168.10.1 remote-as 200 address-family ipv4 unicast neighbor 192.168.10.1 active
    • D、router bgp 100 neighbor 192.168.10.1 remote-as 200 address-family ipv4 multicast neighbor 192.168.10.1 activate

    正确答案:D

  • 第4题：

    Two routers configured to run BGP have been connected to a firewall， one on the inside interface and one on the outside interface. BGP has been configured so the two routers should peer， including the correct BGP session endpoint addresses and the correct BGP session hop-count limit （EBGP multihop）. What is a good first test to see if BGP will work across the firewall？（）

    • A、Attempt to TELNET from the router connected to the inside of the firewall to the router connected to the outside of the firewall. If telnet works， BGP will work， since telnet and BGP both use TCP to transport data.
    • B、Ping from the router connected to the inside interface of the firewall to the router connected to the outside interface of the firewall. If you can ping between them， BGP should work， since BGP uses IP to transport packets.
    • C、There is no way to make BGP work across a firewall without special configuration， so there is no simple test that will show you if BGP will work or not， other than trying to start the peering session.
    • D、There is no way to make BGP work across a firewall.

    正确答案:A

  • 第5题：

    You work as a network engineer for the company， you want to configure two BGP speakers to form an EBGP session across a firewall. On the engineer’s network， the firewall always permits TCP sessions that are initiated from the inside network （the network attached to the inside interface of the firewall）. What prerequisite is there for enabling BGP to run on this network？（）

    • A、EBGP multihop will need to be configured for this to work.
    • B、This should work with normal BGP peering， with no additional configuration on the BGP speakers or the firewall.
    • C、The BGP protocol port must be opened on the firewall
    • D、There is no way to make BGP work across a firewall.

    正确答案:A

  • 第6题：

    During BGP configuration on a router that has peered with other BGP speakers, the BGP command aggregate-a ddress 172.32.0.0 255.255.252.0 is issued. However, the peers do not receive this aggregate network in BGP advertisements. Also, the router does not have this aggregate network in its BGP table. Which option indicates a possible reason this command did not cause the router to advertise the aggregate network to its peers?（）

    • A、Interface NULL 0 is likely shutdown.
    • B、The next hop IP address must be a loopback address.
    • C、The BGP command no auto - summary is missing.
    • D、The BGP command no synchronization is missing.
    • E、Subnets of 172.32.0.0/22 do not exist in the BGP table.
    • F、The IGP running on this router does not have network 172.32.0.0/22 installed.

    正确答案:E

  • 第7题：

    When implementing BGP confederations, which configuration command establishes the globally unique AS number used with external peers outside your network?（）

    • A、bgp confederation as
    • B、bgp confederation system
    • C、bgp confederation remote-as
    • D、bgp confederation identifier

    正确答案:D

  • 第8题：

    单选题
    Two routers configured to run BGP have been connected to a firewall， one on the inside interface and one on the outside interface. BGP has been configured so the two routers should peer， including the correctBGP session endpoint addresses and the correct BGP session hop-count limit EBGP multihop. What is agood first test to see if BGP will work across the firewall？（）
    A

    Attempt to TELNET from the router connected to the inside of the firewall to the router connected to theoutside of the firewall. If telnet works， BGP will work， since telnet and BGP both use TCP to transportdata.

    B

    Ping from the router connected to the inside interface of the firewall to the router connected to theoutside interface of the firewall. If you can ping between them， BGP should work， since BGP uses IP totransport packets.

    C

    There is no way to make BGP work across a firewall without special configuration， so there is no simpletest that will show you if BGP will work or not， other than trying to start the peering session.

    D

    There is no way to make BGP work across a firewall.


    正确答案： C
    解析： 暂无解析

  • 第9题：

    多选题
    Which of the following commands causes a router to bring down BGP neighbor relationships?（）
    A

    clear ip bgp *

    B

    clear ip bgp 1.1.1.1

    C

    clear ip bgp * soft

    D

    clear ip bgp 1.1.1.1 out


    正确答案： C,B
    解析： 暂无解析

  • 第10题：

    单选题
    When BGP is used as the PE-CE routing protocol, which of these statements is correct?（）
    A

    On the CE router, PE neighbors must be configured in the VRF context on the CE router

    B

    On PE routers, the CE IBGP neighbors are configured in the global BGP configuration

    C

    On PE routers, the CE EBGP neighbors are configured in the VRF context

    D

    A separate BGP process must be used on the PE routers for CE routers so that they do not use the same BGP routing process as that used for the PE router's other provider neighbors


    正确答案： C
    解析： 暂无解析

  • 第11题：

    单选题
    A BGP router is configured as shown below：  interface ethernet 0 ip address 10.10.10.1 255.255.0.0! int serial 0 ip address 172.16.1.1 255.255.255.252! router bgp 65001 neighbor 192.168.1.1 remote-as 65002   Based on the above configuration， which of the following BGP statements would inject the10.10.0.0/16 prefix into the BGP routing table？（）
    A

    network 10.0.0.0

    B

    network 10.10.0.0 mask 255.255.0.0

    C

    network 10.10.10.1 mask 255.255.255.255

    D

    network 10.10.10.0 mask 255.255.255.0

    E

    network 10.0.0.0 mask 255.255.0.0


    正确答案： C
    解析： 暂无解析

  • 第12题：

    单选题
    BGP route dampening is configured on a BGP router. Whose routing behavior is affected by this configuration?（）
    A

    upstream EBGP neighbors

    B

    downstream EBGP neighbors

    C

    upstream IBGP neighbors learned by IBGP peers

    D

    downstream IBGP neighbors learned by IBGP peers


    正确答案： B
    解析： 暂无解析

  • 第13题：

    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.

    正确答案:B

  • 第14题：

    When BGP is used as the PE-CE routing protocol, which of these statements is correct?（）

    • A、On the CE router, PE neighbors must be configured in the VRF context on the CE router
    • B、On PE routers, the CE IBGP neighbors are configured in the global BGP configuration
    • C、On PE routers, the CE EBGP neighbors are configured in the VRF context
    • D、A separate BGP process must be used on the PE routers for CE routers so that they do not use the same BGP routing process as that used for the PE router's other provider neighbors

    正确答案:C

  • 第15题：

    SR7750调测BGP邻居状态变化的命令是（）

    • A、debug router bgp open
    • B、debug router bgp events
    • C、debug router bgp update
    • D、debug router bgp packets

    正确答案:B

  • 第16题：

    Router 1 is configured for BGP as dual-homed on the Cisco network. Which three BGP attributes are carried in every BGP update on this router （both IBGP and EBGP）？（）

    • A、origin
    • B、router-ID
    • C、AS-path
    • D、local-preference
    • E、next-hop

    正确答案:A,C,E

  • 第17题：

    In which two ways does the BGP graceful capability preserve prefix information during a restart？（）

    • A、The peer router immediately removes the BGP routers that it learned from the restarting router from itsBGP routing tables.
    • B、The router establishes BGP sessions with other routers and relearns the BGP routes from others that are also capable of graceful restart. The restarting router waits to receive updates from the neighboringrouters. When the neighboring routers send end-of-RIB messages to indicate that they are donesending updates，the restarting router starts sending its own updates.
    • C、The peer router sends an end-of-RIB message to the restarting router.
    • D、The restarting router removes any stale prefixes after the timer for stale entries expires.
    • E、The restarting router does not remove any stale prefixes after the timer for stale entries expires.

    正确答案:B,D

  • 第18题：

    A problem was reported that the 10.10.10.0/24 prefix was not injected into the local BGP table ona Company router named R1. The following information is available from this router：  R1 Configuration：  router bgp 65001 network 10.0.0.0 neighbor 172.16.1.1 remote-as 65002 no auto-summary  Routing table information：  show ip route | include 10 O 10.10.10.0/24 [110/11] via 192.168.1.1， 2d00h， Ethernet0/0  Why is this prefix not in the local BGP table of the R1？（）

    • A、The 172.16.1.1 neighbor is down.
    • B、The prefix 10.10.10.0/24 is not a ’connected’ route
    • C、This route is not a BGP learned route
    • D、The network command is wrong
    • E、None of the other alternatives apply

    正确答案:D

  • 第19题：

    单选题
    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.


    正确答案： D
    解析： 暂无解析

  • 第20题：

    多选题
    In which two ways does the BGP graceful capability preserve prefix information during a restart？（）
    A

    The peer router immediately removes the BGP routers that it learned from the restarting router from itsBGP routing tables.

    B

    The router establishes BGP sessions with other routers and relearns the BGP routes from others that are also capable of graceful restart. The restarting router waits to receive updates from the neighboringrouters. When the neighboring routers send end-of-RIB messages to indicate that they are donesending updates，the restarting router starts sending its own updates.

    C

    The peer router sends an end-of-RIB message to the restarting router.

    D

    The restarting router removes any stale prefixes after the timer for stale entries expires.

    E

    The restarting router does not remove any stale prefixes after the timer for stale entries expires.


    正确答案： A,C
    解析： 暂无解析

  • 第21题：

    多选题
    In which two ways does the BGP graceful restart capability preserve prefix information during a restart？（）
    A

    The peer router sends an end-of RIB message to the restarting router

    B

    The peer router immediately removes the BGP routes that it learned from the restarting router from its BGP routing table

    C

    The restarting router does not remove any stale prefixes after the timer for stale entries expires

    D

    The router establishes BGP sessions with other routers and relearns the BGP routes from other routers that are also capable of graceful restart. The restarting router waits to receive updates from the neighboring routers. When the neighboring routers send end-of-RIB messages to indicate that they are done sending updates， the restarting router starts sending its own updates

    E

    The restarting router removes any stale prefixes after the timer for stale entries expires


    正确答案： A,D
    解析： 暂无解析

  • 第22题：

    单选题
    A problem was reported that the 10.10.10.0/24 prefix was not injected into the local BGP table on a PassGuide router named PG1.The following information is available from this router：PG1 Configuration：router bgp 65001network 10.0.0.0neighbor 172.16.1.1 remote-as65002no auto-summaryRouting table information：show ip route|include 10O10.10.10.0/24[110/11]via192.168.1.1，2d00h，Ethernet0/0Why is this prefix not in the local BGP table of thePG1（）
    A

    The 172.16.1.1 neighbor is down.

    B

    The prefix 10.10.10.0/24is not a’connected’route.

    C

    This route is not a BGP learned route.

    D

    The network command is wrong.

    E

    None of the other alternatives apply


    正确答案： D
    解析： 暂无解析

  • 第23题：

    单选题
    You are configuring a new BGP neighbor and want to view the configuration of interface ge- 0/0/0.42.Which command do you use to achieve this result?（）
    A

    [edit protocols bgp group external]   user@router# set interfaces ge-0/0/0.42

    B

    [edit protocols bgp group external]   user@router# edit show interfaces ge-0/0/0.42

    C

    [edit protocols bgp group external]   user@router# top show interfaces ge-0/0/0.42

    D

    [edit protocols bgp group external]   user@router# show interfaces ge-0/0/0.42


    正确答案： A
    解析： 暂无解析

  • 第24题：

    单选题
    Two routers configured to run BGP have been connected to a firewall， one on the inside interface and one on the outside interface. BGP has been configured so the two routers should peer， including the correct BGP session endpoint addresses and the correct BGP session hop-count limit （EBGP multihop）. What is a good first test to see if BGP will work across the firewall？（）
    A

    Attempt to TELNET from the router connected to the inside of the firewall to the router connected to the outside of the firewall. If telnet works， BGP will work， since telnet and BGP both use TCP to transport data.

    B

    Ping from the router connected to the inside interface of the firewall to the router connected to the outside interface of the firewall. If you can ping between them， BGP should work， since BGP uses IP to transport packets.

    C

    There is no way to make BGP work across a firewall without special configuration， so there is no simple test that will show you if BGP will work or not， other than trying to start the peering session.

    D

    There is no way to make BGP work across a firewall.


    正确答案： A
    解析： 暂无解析

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