IPExpert V2 Lab11

Task 2.1 VTP pruning

Forgot to activate pruning missing the phrase 'ensure broadcast frames withtin any given vlan are not sent to switch that don't have access port in that vlan'

Task 5.4 Eigrp Tuning

Forgoten task : prevent SIA process after 300 seconds

timers active-time

Wrong task : drop routes from inactive neighbors after half the default value.

I configured an hold-time of 90 as default for NBMA is 180se
The question was more about to use NSF, permitting using during a normal nsf enabled neighbor failure (restart or maintenace) . default is 240s. to configure it
timers nsf route-hold 120
or
timers graceful-restart purge-time 120

Task 6.1 RIP

Forgotten task : RIP updates should be sent to the broadcast adress :
ip rip v2-broadcast

Task 8.6/7 BGP

Advertising same networks throught 2 different as in AS 567 make one preferable. I manipulate AS_PATH. other solutions was:
- Setting a local preference on input ebgp.
- Setting a weight on all routers of the as 567
- Setting a med with the options of ignoring as-path and always comparing med (because coming of differents as)

Aggregate an adress without routing loops :
- Filtering where the route is propagated (my solution)
- Setting as-set in order the route be automatically filtered from when the more specifics routes come from.

Task 9.2 MPLS VPN

As i used ospf between PE-CE and CE was using vrf I needed to activate vrf-lite capability on CE ospf process in order the coming routes from the PE be accepted. A PE router will set DN or domain-tag in order another PE on the same segment not reinject the route. So a PE will not accept lsa with dn or domain-tag set. As the CE has vrf activated it's considered PE and will not accept any ospf route from the PE. vrf-lit permits to disable this check on the CE