Cisco Implementing Cisco Service Provider Advanced Routing Solutions - 300-510무료 덤프문제 풀어보기
A network engineer recently deployed a wireless network for users at a new office to join video conferences wirelessly. The existing network consists of routers that are configured for EIGRP and BGP. Which are located at several data centers in different physical locations. The engineer configured PIM-SSM within a single domain from a single source. However, during the testing phase, the video conference failed to work for any of the users. The IPs are reachable and firewalls in the network are configured correctly to allow the traffic.
Which action resolves the issue?
Which action resolves the issue?
정답: A
An engineer with an employee ID: 4535:15:507 must implement PIM-SSM in the network to support a new multicast messaging service. All the routers in the network run a distance vector routing protocol. Unicast routing is established on the network and is working normally. What must the engineer enable to continue the implementation process?
정답: C
SIMULATION
Guidelines
This is a lab item in which tasks will be performed on virtual devices.
- Refer to the Tasks tab to view the tasks for this lab item.
- Refer to the Topology tab to access the device console(s) and perform the tasks.
- Console access is available for all required devices by clicking the device icon or using the tab(s) above the console window.
- All necessary preconfigurations have been applied.
- Do not change the enable password or hostname for any device.
- Save your configurations to NVRAM before moving to the next item.
- Click Next at the bottom of the screen to submit this lab and move to the next question.
- When Next is clicked, the lab closes and cannot be reopened.
Topology
Tasks
R2 and R3 are routers that perform multicast operations. Candidates are required to perform the below configuration and verification tasks on R1 and R2.
1. Configure R2 and R3 to be able to process, route and forward multicast packets.
2. Configure R3 as the root of the shared tree for the any source multicast domain.
3. Configure R1 as the receiver for group 239.100.100.1 and ensure a ping to that group from R4 is successful.
Initial configuration with IP addressing has been completed. The candidate must not make any changes to the configurations except to fulfill the tasks listed above. Use non-proprietary protocol where needed. Only use the provided logical interface for the applicable task.
Guidelines
This is a lab item in which tasks will be performed on virtual devices.
- Refer to the Tasks tab to view the tasks for this lab item.
- Refer to the Topology tab to access the device console(s) and perform the tasks.
- Console access is available for all required devices by clicking the device icon or using the tab(s) above the console window.
- All necessary preconfigurations have been applied.
- Do not change the enable password or hostname for any device.
- Save your configurations to NVRAM before moving to the next item.
- Click Next at the bottom of the screen to submit this lab and move to the next question.
- When Next is clicked, the lab closes and cannot be reopened.
Topology
Tasks
R2 and R3 are routers that perform multicast operations. Candidates are required to perform the below configuration and verification tasks on R1 and R2.
1. Configure R2 and R3 to be able to process, route and forward multicast packets.
2. Configure R3 as the root of the shared tree for the any source multicast domain.
3. Configure R1 as the receiver for group 239.100.100.1 and ensure a ping to that group from R4 is successful.
Initial configuration with IP addressing has been completed. The candidate must not make any changes to the configurations except to fulfill the tasks listed above. Use non-proprietary protocol where needed. Only use the provided logical interface for the applicable task.
정답:
1. Enable Multicast Routing on R2 and R3
To process, route, and forward multicast packets, multicast routing must be enabled globally, and PIM (Protocol Independent Multicast) must be configured on the appropriate interfaces.
Commands on R2 and R3:
R2(config)# ip multicast-routing
R2(config)# interface e0/0
R2(config-if)# ip pim sparse-mode
R2(config)# interface e0/1
R2(config-if)# ip pim sparse-mode
R2(config)# interface loopback 0
R2(config-if)# ip pim sparse-mode
R3(config)# ip multicast-routing
R3(config)# interface e0/0
R3(config-if)# ip pim sparse-mode
R3(config)# interface e0/1
R3(config-if)# ip pim sparse-mode
R3(config)# interface loopback 0
R3(config-if)# ip pim sparse-mode
ip multicast-routingenables multicast routing globally.
ip pim sparse-modeenables PIM in Sparse Mode on interfaces.
2. Configure R3 as the Root of the Shared Tree (Rendezvous Point - RP)
To configure R3 as the RP for the multicast domain, use Auto-RP or Static RP. Here, we configure Static RP for group 239.100.100.1.
Commands on R2 and R3:
R2(config)# ip pim rp-address 3.3.3.3
R3(config)# ip pim rp-address 3.3.3.3
ip pim rp-address <RP-IP>: Configures R3's Loopback0 IP (3.3.3.3) as the RP for the multicast domain.
Task 3: Configure R1 as the Receiver for Group 239.100.100.1
To configure R1 as a multicast receiver, enable IGMP (Internet Group Management Protocol) on R1's e0/0 interface.
Commands on R1:
R1(config)# interface e0/0
R1(config-if)# ip igmp join-group 239.100.100.1
ip igmp join-group <group>: Forces R1 to join the multicast group 239.100.100.1.
Verification: Ensure Ping to Group 239.100.100.1 is Successful from R4
To verify multicast group reachability:
1. Send Multicast Traffic from R4:
R4# ping 239.100.100.1 repeat 5
2. Verify Multicast Routing Table on R2 and R3:
R2# show ip mroute
R3# show ip mroute
3. Verify IGMP Group Membership on R1:
R1# show ip igmp groups
Complete Summary of Configurations:
1. R2 Configuration:
ip multicast-routing
interface e0/0
ip pim sparse-mode
interface e0/1
ip pim sparse-mode
interface loopback 0
ip pim sparse-mode
ip pim rp-address 3.3.3.3
2. R3 Configuration:
ip multicast-routing
interface e0/0
ip pim sparse-mode
interface e0/1
ip pim sparse-mode
interface loopback 0
ip pim sparse-mode
ip pim rp-address 3.3.3.3
3. R1 Configuration:
interface e0/0
ip igmp join-group 239.100.100.1
Verification Checklist:
1. R3 is the RP: Use show ip pim rp mapping..
2. R1 is a Group Member: Verify with show ip igmp groups.
3. Multicast Traffic Flows: Use ping 239.100.100.1from R4 and verify success.
To process, route, and forward multicast packets, multicast routing must be enabled globally, and PIM (Protocol Independent Multicast) must be configured on the appropriate interfaces.
Commands on R2 and R3:
R2(config)# ip multicast-routing
R2(config)# interface e0/0
R2(config-if)# ip pim sparse-mode
R2(config)# interface e0/1
R2(config-if)# ip pim sparse-mode
R2(config)# interface loopback 0
R2(config-if)# ip pim sparse-mode
R3(config)# ip multicast-routing
R3(config)# interface e0/0
R3(config-if)# ip pim sparse-mode
R3(config)# interface e0/1
R3(config-if)# ip pim sparse-mode
R3(config)# interface loopback 0
R3(config-if)# ip pim sparse-mode
ip multicast-routingenables multicast routing globally.
ip pim sparse-modeenables PIM in Sparse Mode on interfaces.
2. Configure R3 as the Root of the Shared Tree (Rendezvous Point - RP)
To configure R3 as the RP for the multicast domain, use Auto-RP or Static RP. Here, we configure Static RP for group 239.100.100.1.
Commands on R2 and R3:
R2(config)# ip pim rp-address 3.3.3.3
R3(config)# ip pim rp-address 3.3.3.3
ip pim rp-address <RP-IP>: Configures R3's Loopback0 IP (3.3.3.3) as the RP for the multicast domain.
Task 3: Configure R1 as the Receiver for Group 239.100.100.1
To configure R1 as a multicast receiver, enable IGMP (Internet Group Management Protocol) on R1's e0/0 interface.
Commands on R1:
R1(config)# interface e0/0
R1(config-if)# ip igmp join-group 239.100.100.1
ip igmp join-group <group>: Forces R1 to join the multicast group 239.100.100.1.
Verification: Ensure Ping to Group 239.100.100.1 is Successful from R4
To verify multicast group reachability:
1. Send Multicast Traffic from R4:
R4# ping 239.100.100.1 repeat 5
2. Verify Multicast Routing Table on R2 and R3:
R2# show ip mroute
R3# show ip mroute
3. Verify IGMP Group Membership on R1:
R1# show ip igmp groups
Complete Summary of Configurations:
1. R2 Configuration:
ip multicast-routing
interface e0/0
ip pim sparse-mode
interface e0/1
ip pim sparse-mode
interface loopback 0
ip pim sparse-mode
ip pim rp-address 3.3.3.3
2. R3 Configuration:
ip multicast-routing
interface e0/0
ip pim sparse-mode
interface e0/1
ip pim sparse-mode
interface loopback 0
ip pim sparse-mode
ip pim rp-address 3.3.3.3
3. R1 Configuration:
interface e0/0
ip igmp join-group 239.100.100.1
Verification Checklist:
1. R3 is the RP: Use show ip pim rp mapping..
2. R1 is a Group Member: Verify with show ip igmp groups.
3. Multicast Traffic Flows: Use ping 239.100.100.1from R4 and verify success.
Refer to the exhibit. Router 1, Router 2, and Router 3 are co-located in an onsite data center of an office, but Router 4, Router 5, and Router 6 are installed in another data center several miles away. A network engineer is troubleshooting an RSVP- issue on the network. On most of the devices, the engineer can move all LSPs away from a selected interface and take it down for maintenance without interrupting traffic. However, when an interface on Router 3 is taken down, traffic on the network is disrupted. What must the engineer enable to resolve the issue on Router
3?
3?
정답: D
설명: (Fast2test 회원만 볼 수 있음)
Refer to the exhibit. CE1 and CE2 use connectivity over the service provider cloud to reach CE3.
In the event of a link failure in the service provider cloud, which BGP feature relies on IGP convergence to quickly assist in the installation of a backup path?
In the event of a link failure in the service provider cloud, which BGP feature relies on IGP convergence to quickly assist in the installation of a backup path?
정답: B
Refer to the exhibit. The four routers in this network have formed adjacencies. Router R2 is an IS- IS level 1-2 router that connects to other areas, and the attach bit is set in the R2 level 1 LSP advertisements to R1. According to the network design, R2 should push level 2 routes from its routing table to the R1 routing table. However, R1 installed a default route in its routing table.
Which action resolves this problem?
Which action resolves this problem?
정답: A
Refer to the exhibit. Mid-sized company Z connected two branch offices via a multicast-enabled ISP using the BGP routing protocol. PIM was implemented to support multicast streaming between the branches via MSDP. Client A cannot connect to the multicast stream source of company Z. The network engineer ran a debug on the edge of the network as shown.
Which action resolves the issue?
Which action resolves the issue?
정답: C
Refer to the exhibit. Multicast traffic destined from T1 and T2 routers to RP routers works well. A network engineer observes problems with multicast traffic flows between Site-A and Site-B. Site- A users fail to receive multicast stream on Site-B via RPTV site, while Site-B users fail to receive multicast stream on Site-A via RPTZ site. Which action must be implemented to resolve the issues?
정답: C
A network operator working for a telecommunication company with an employee id: 4074:92:707 is planning to implement the Nonstop Forwarding (NSR) feature on the customer's core network.
After getting the configuration ready for NSR. on which router should the operator implement NSR changes?
After getting the configuration ready for NSR. on which router should the operator implement NSR changes?
정답: C
설명: (Fast2test 회원만 볼 수 있음)
Refer to the exhibit. An MPLS core network has connectivity issues R4 has failed. It impacts traffic loss between R1 and R8. Customers report no access to their file servers, which delays their transformation work. Which quick action resolves the issue until R4 recovers?
정답: B
Refer to the exhibit. ISP_1 uses OSPF and LDP in the backbone. Client_A and Client.B are in the same VRF_Shared. An iBGP session with address family VPNv4 is established between R6 and R14. After a recent replacement of router R13, Client_A has lost its connection to Client_B. A network engineer must troubleshoot the connection from R1 to R23 via ISP_1. Which action must the engineer take to correct the problem?
정답: A
설명: (Fast2test 회원만 볼 수 있음)
An engineer warns to map a multicast IP address to a multicast MAC.
How many bits are used to make the conversion?
How many bits are used to make the conversion?
정답: A