Which is required on the CE router in an L3VPN solution?
How frequently does the WDSYSMON Watcher thread wake up to check counters?
https://www.cisco.com/c/en/us/td/docs/ios_xr_sw/iosxr_r3-8/general/man_pages/crpkg38/ar38wtdg.pdf
What is the default MP-BGP address-family on IOS-XR?
Which underlying protocol(s) does LDP utilize to communicate with LDP Peers?
Which command is used to redistribute BGP into EIGRP for a Layer 3 VPN customer?