Cisco: allow unshutting interfaces

[progwriter]

No description provided.

[batfish-bot]

This change is 

[codecov]

Codecov Report

Merging #4375 into master will decrease coverage by 0.15%.
The diff coverage is 100%.

@@             Coverage Diff              @@
##             master    #4375      +/-   ##
============================================
- Coverage     74.84%   74.69%   -0.16%     
+ Complexity    26338    26171     -167     
============================================
  Files          2135     2135              
  Lines        105614   104874     -740     
  Branches      12951    12690     -261     
============================================
- Hits          79050    78331     -719     
+ Misses        20613    20582      -31     
- Partials       5951     5961      +10

Impacted Files	Coverage Δ	Complexity Δ
...fish/grammar/cisco/CiscoControlPlaneExtractor.java	66.84% <100%> (-0.01%)	1473 <3> (ø)
...g/batfish/datamodel/eigrp/EigrpNeighborConfig.java	81.35% <0%> (-6.74%)	21% <0%> (-19%)
.../src/main/java/org/batfish/datamodel/flow/Hop.java	53.33% <0%> (-6.67%)	5% <0%> (-1%)
...g/batfish/dataplane/ibdp/IncrementalBdpEngine.java	90.28% <0%> (-3.93%)	77% <0%> (-17%)
...java/org/batfish/datamodel/EigrpExternalRoute.java	74.6% <0%> (-3.18%)	12% <0%> (-1%)
...org/batfish/datamodel/flow/BidirectionalTrace.java	79.54% <0%> (-2.28%)	13% <0%> (ø)
...tfish/representation/cisco/CiscoConfiguration.java	84.65% <0%> (-1.31%)	515% <0%> (-79%)
...rg/batfish/dataplane/ibdp/EigrpRoutingProcess.java	93.24% <0%> (-1.16%)	57% <0%> (-46%)
...src/main/java/org/batfish/coordinator/PoolMgr.java	64.04% <0%> (-1.13%)	15% <0%> (-1%)
...rg/batfish/datamodel/eigrp/EigrpTopologyUtils.java	81.11% <0%> (-1%)	21% <0%> (ø)
... and 1 more

[arifogel]

Reviewed 4 of 4 files at r1.
Reviewable status: complete! all files reviewed, all discussions resolved

[arifogel]

Reviewable status: complete! all files reviewed, all discussions resolved