Congratulations on completing another skill.
Now, it's time for a review in the form of a quiz.
As we go through these questions,
be sure to pause the video after each question to give yourself
the opportunity to answer the question yourself
before we then go over the answer.
That said, let's jump in with our first question.
Which command on the PE can be used
to see both labels that will be put into the label stack?
So let's just go down our list.
First is the show mpls forwarding table.
And as we saw during the demonstration,
although this will show you the forwarding
table for inside the core of the network,
this does not include the actual customer routes,
therefore, show mpls forwarding table's not
going to be a correct answer.
However, show ip cef, now you will still
have to specify here, which VRF you are looking for.
However, overall, this is going to be a correct answer.
Show ip route detail is not going to show us the labels.
Show vrf detail also does not show us the labels.
It would show us things like the route extinguisher.
So overall, number 2 is our correct answer.
Next question.
Which two values must be configured for a VRF
to be viable for Layer 3 VPN?
So once again, let's go down our list.
VRF ID isn't really a thing.
You could maybe say that it's the VRF name,
but that can really be anything for it to still be viable.
It will, however, need to have a route target configured,
both import and export route targets, but route targets
nonetheless.
Next is root forwarders.
That sounds pretty much made up to me.
I don't know what that would be.
Same with route identifiers.
That's not really a thing either.
However, we do need route extinguishers.
So our two answers here would be route targets and route
extinguishers, number 2 and number 5.
Final question.
Which address families should be enabled between the PE routers?
So L3 VPN, again, not really a thing.
That's not what we call our address families.
Neither is MPLSVPN.
That's not really one of our names either.
However, VPNv4, this of course, is the addresses
that we use for our IPv4 routes.
VXLAN, not going to be appropriate in this context.
And, of course, if we want to support IPv6,
we're going to need VPNv6 as well.
So to support all of our current protocols,
we'll want 3 and 5, VPNv4 and VPNv6.
So that concludes this quiz.
If you find that you are missing any of the information needed
to answer these questions appropriately,
I would encourage you to go back and review the sources listed
on each question.
Otherwise, congratulations on completing
implementing MPLS Layer 3 VPNs.
I hope this has been informative for you.
And I'd like to thank you for viewing.