In-depth knowledge of TC

OSPF  Link State protocol
----  Operates within single AS
      Link-state database, identical on all routers

A (config) # router ospf 1 

(Enable ospf protocol and 1 is Autonomous number)

A(config-router) # network 40.0.0.0 0.255.255.255 area 0




MPLS - Multiprotocol Label Switching.
----

interface Serial0/0
 
 ip router isis 

 tag-switching ip




Data packets are assigned labels.This allows one to create end-to-end circuits across
any type of transport medium, using any protocol

BGP - Border Gateway Protocol (BGP). Border Routers,EBGP - communicatio between Autonomouse
---   EBGP - communicatio between Autonomouse Systems(ASP)
      Core routing decisions on the Internet.
      Path vector protocol.
      Routing decisions based on path, network policies and/or rulesets
      Routing table contains the destination network, the next
      router and the path to reach the destination.  
      Idle, Open, Active, Established States.

C(config)# router bgp 10

C (config-router) # neighbor 61.1.1.1 remote-as 20 



CCC - Circuit Cross-Connect
----

L2/L3 


GSM - Global System for Mobile Communications
---
      Digital cellular protocol





T1's - 1.544 Mbps (24 DS0 lines) 

----

DS3 - 45 Mbps, ultra high-speed connection capable of transmitting data at rates up to 
---

OC-3 - 155 Mbps (84 T1s) 
----

circuit provisioning/project manager for a telco carrier and/or ISP