====== Cisco IOS ======
Ahh, the ubiquitous Cisco IOS, or is it IOS-XE, maybe IOS-XR?  Cisco was never good at making up their mind.

===== EIGRP =====
This shows EIGRP routes that didn't make it to the FIB. So, the EIGRP RIB.

''show ip eigrp topology frr''

//PS. I really think this should be on a routing page but my head hurts and I'm sleepy so it's going here for now.//



===== Transceiver Info =====
ISR equivalent of <code>show int Gi0/0 transceiver</code>:
  show hw-module subslot 0/0 transceiver 1 idprom

This was mentioned as another possibility:
  show hw-module subslot 0/0 transceiver 0 status

===== logging synchronous =====
Applied on a VTY line ''logging synchronous'' will prevent log messages from interrupting the commands you're typing.

You can use it on the console too but once upon a time there was an issue with the console buffer filling up and... something wrong happened. Not like a crash, but maybe it locked the console.

===== DHCP Pool =====
  ip dhcp excluded-address 10.199.42.1 10.199.42.9
  ip dhcp excluded-address 10.199.42.250 10.199.42.255
  ip dhcp pool POOL:ONE
   network 10.199.42.0 255.255.255.0
   domain-name example.com
   dns-server 10.199.16.23
   default-router 10.199.42.1

===== VRF Lite =====
I'm not sure the import/export was needed. This got things working enough to serve my purpose which was a temporary test rig.

  vrf definition INET
   rd 65000:111
   route-target export 65000:111
   route-target import 65000:111
   !
   address-family ipv4
   exit-address-family
  !
  !
  interface Vlan2
   description INET
   vrf forwarding INET
   ip address 198.51.100.2 255.255.255.0
  !
  interface Vlan3
   description OTHER_THING_THAT_ROUTES_TO_INET
   vrf forwarding INET
   ip address 192.0.2.1 255.255.255.0
  !
  ip route vrf INET 0.0.0.0 0.0.0.0 198.51.100.1 name INET_DEFAULT
  ip route 0.0.0.0 0.0.0.0 203.0.113.1 name DEFAULT