Juniper Service Provider Routing and Switching Support, Professional : JN0-692

Click the Exhibit button.
You are asked to troubleshoot a new Layer 3 VPN implementation. Each PE is not receiving routes from the other PE or the remote CE network.
Referring to the exhibit, what should you do on PE2 to resolve the problem?

• A. Change the route distinguisher value.
• B. Remove the vrf-table-label parameter.
• C. Change the route target value.
• D. Enable the keep-all option.

You have enabled MPLS in your network using LDP for control plane signaling. After completing the configurations, you find that both your input and output LDP databases have labels only for loopback interfaces.
Referring to the scenario, which two statements are correct? (Choose two.)

• A. The default egress policy for LDP in the Junos OS announces only the loopback address.
• B. You should verify the configurations first, then enable ldp traceoptions.
• C. An LDP egress policy must be used to create and advertise new label mappings for directly connected prefixes other than the loopback.
• D. An LDP export policy must be used to create and advertise new label mappings for directly connected prefixes other than the loopback.

You have been asked to troubleshoot an OSPF problem where the OSPF session will not establish.
According to the outputs shown in the exhibit, which statement is true?

• A. The dead-interval is set too low.
• B. The hold-time interval is set too low.
• C. There is an MTU mismatch.
• D. The hold-time interval is set too high.

Click the Exhibit button.
-- Exhibit -user@PE1# show protocols mpls userel-switched-path LSP-1 {
from 101.101.101.1;
to 103.103.103.1; } userel-switched-path LSP-2 {
from 101.101.101.1;
to 103.103.103.1; } interface ge-0/0/0.0;
user@PE1# show protocols ldp interface lo0.0;
user@PE1# show protocols l2circuit
neighbor 103.103.103.1 { interface ge-0/0/3.300 { virtual-circuit-id 300; }
}
user@PE1# show interfaces ge-0/0/3 flexible-vlan-tagging; encapsulation flexible-ethernet-services;
unit 300 { encapsulation vlan-ccc; vlan-id 300;
}
user@PE1# show protocols l2circuit
neighbor 103.103.103.1 { interface ge-0/0/3.300 { virtual-circuit-id 300; community test-community; }
}
user@PE1# show policy-options community test-community members 300:300; -- Exhibit -
Given the topology shown below: CE1-PE1-P-PE2-CE2
PE1 and PE2 have two equal-cost RSVP LSPs (LSP-1 and LSP-2). They form a Layer 2 circuit between CE1 and CE2. You are asked to map their traffic to take LSP-1. The exhibit shows the current configuration of PE1. The correct configuration has been completed on the other routers.
Which two configurations must be added to PE1 to ensure that this traffic is always carried on LSP-1? (Choose two.)

• A. forwarding-table {
  export mapping-l2ckt-to-lsp;
  } user@PE1# show policy-options
• B. forwarding-table {
  import mapping-l2ckt-to-lsp;
  }
  user@PE1# show routing-options
• C. policy-statement mapping-l2ckt-to-lsp {
  term 1 {
  from community test-community;
  then {
  install-nexthop lsp LSP-1;
  }
  }
  }
  user@PE1# show policy-options
• D. policy-statement mapping-l2ckt-to-lsp {
  term 1 {
  from community test-community;
  then {
  accept;
  }
  }
  }
  user@PE1# show routing-options

Click the Exhibit button.


You are setting up a new CoS policy for your VPN customer. You configured the queues as shown in the exhibit, but you see drops in the EF queue. Interface utilization is around 1 Mbps.
What would you do to resolve the problem?

• A. Remove the strict-high parameter from the EF queue and add strict-high on the assured-forwarding (AF) queue.
• B. Raise the transmit rate on the EF queue.
• C. Lower the transmit rate on the AF queue.
• D. Lower the buffer size on the assured-forwarding (AF) queue.