Nexiilicious

Useful show commands by topic/technology.  A work in progress as I go through my own CCIE studies.

 General | Layer 2 | Frame Relay | RIP | OSPF | EIGRP | BGP  | MPLS | IPv6 | Multicast | QoS

General Show Commands

• show int status | exclude _(value)_
• show int status | i _(value)
• show tcp brief – display description of TCP connection endpoints
• show ip protocols

Layer 2

• show interface x/x switchport – display switchport statistics for an interface
• show spanning-tree root – displays information about the root bridge.
• show spanning-tree blockedport – displays blocked ports on the bridge
• show udld interface x/x – output from Unidirectional Link Detection per interface
• show etherchannel summary– summarized information per etherchannel

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Frame Relay

• show frame-relay map
• show frame-relay pvc
• show frame-relay lmi
• show frame-relay route
• show connection all
• show interface irb

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RIP

• show ip rip database
  
• show ip protocols
  
• show ip route rip

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OSPF

• show ip ospf neighbor
  
• show ip ospf interface x/y
• show ip ospf interface x/y brief
  
• show ip ospf database
• show ip ospf border-routers
• show ip ospf virtual-links
• show ip ospf summary-address

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EIGRP

BGP

MPLS

• show mpls forwarding
• show bgp vpnv4 unicast all labels
• show bgp vpnv4 unicast vrf (name)
• show mpls ldp neighbor
• show mpls ldp discovery

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IPv6

Multicast

• show ip pim interface
  
• show ip pim neighbor
  
• show ip pim rp mapping
  
• show ip pim rp-address
• show ip rpf

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QoS