300-515 · Question #101
Refer to the exhibit. OSPF is used as an underlayer routing protocol in the backbone network of this ISP. A network engineer recently configured R1 with ip cef and mpls label range 1000 2000…
The correct answer is A. Configure mpls ldp neighbor 10.0.0.2 targeted under the global configuration. Because the pseudowire is bound to a non-IP interface (Gi0/0/0 has “no ip address”), LDP must be run as a targeted session over the loopback addresses. Replacing the RP module cleared that neighbor relationship, so you must re-establish it with the mpls ldp neighbor 10.0.0.2…
Question
Refer to the exhibit. OSPF is used as an underlayer routing protocol in the backbone network of this ISP. A network engineer recently configured R1 with ip cef and mpls label range 1000 2000. Several days later, the engineer replaced a failed RP module on R1. After the replacement, one of the customer’s MPLS LSPs went down with the error message LSP-ERROR-Indication:No Label Resources. Which action must the engineer take to resolve the issue?
Exhibit
Options
- AConfigure mpls ldp neighbor 10.0.0.2 targeted under the global configuration.
- BConfigure mpls mtu 1600 under interface Gi0/0/0.
- CConfigure xconnect 10.0.0.2 100 encapsulation mpls vian 10 under interface Gi0/0/0.
- DConfigure redistribute connected under the OSPF configuration.
How the community answered
(37 responses)- A84% (31)
- B3% (1)
- C5% (2)
- D8% (3)
Explanation
Because the pseudowire is bound to a non-IP interface (Gi0/0/0 has “no ip address”), LDP must be run as a targeted session over the loopback addresses. Replacing the RP module cleared that neighbor relationship, so you must re-establish it with the mpls ldp neighbor 10.0.0.2 targeted
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