LDP is enabled on both ends of a point-to-point link, but the "show router Idp status" command indicates that LDP is operationally down. The Oper Down Reason field shows the message "systemIpDown." What might cause this condition?
I feel like I read that if the LSP is administratively down, it wouldn't show "systemIpDown." So, I doubt option A is the answer, but I'm not completely confident.
I practiced a similar question where LDP was down, and I think it had to do with the interfaces not running LDP. So, option C could be a possibility too.
I'm not entirely sure, but I think if the router's router ID overlaps with another, it could cause issues. That sounds like option B, but I need to double-check.
What, the router doesn't have an IP address? Did they forget to pay the internet bill or something? I'm going with D, but I'm also going to send a strongly worded letter to the network admin!
D) definitely sounds like the culprit here. Can't have LDP without a valid IP address on the system interface. Time to brush up on those networking fundamentals!
I'm going with D) as well. If the system interface doesn't have an IP address, that would definitely cause LDP to be operationally down. Gotta love these tricky networking questions!
D) The router's system interface requires an IP address. This seems like the most likely cause, as the 'systemIpDown' message suggests an issue with the system interface's IP address configuration.
I'm not sure, but I think it could also be D) The router's system interface requires an IP address. Without an IP address, LDP might not be able to establish a connection.
I agree with Broderick, if LDP is enabled on both ends but still operationally down, it could be because LDP is not running on the router's interfaces.
Sherrell
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