Networks and Services - Mehmet Toy Flashcards
2 capabilities that address the scalability issue of Carrier Ethernet
- Provider Backbone Bridges (PBBs)
2. Provider Backbone Transport (PBT)
3 technologies that can compete or work with carrier Ethernet
- T-MPLS
- MPLS-TP
- VPLS
Why is synchronization in Metro Ethernet networks required?
Synchronization in Metro Ethernet Networks (MEN) is required mainly because of mobile backhaul and bandwidth explosion in mobile networks.
A mechanism used to emulate telecommunication services across packet-switched networks (PSNs), such as Ethernet, IP (internet protocol), or MPLS.
Pseudowire Emulation Edge-to-Edge (PW3)
Encapsulates cells, bit streams, and protocol data units (PDUs) and transport them across Carrier Ethernet Virtual Circuits (EVCs), IP, or MPLS tunnels.
Pseudowires
The transportation of encapsulated data in a pseudowire usually requires what?
Managing the sequence and timing of data units to emulate services such as T1/T3 leased lines and asynchronous transfer mode (ATM).
A two-layer network consisting of Ethernet MAC (ETH) layer network and Ethernet PHY (ETY) layer network.
Ethernet transport network
Two layers in an Ethernet transport network
- Ethernet MAC (ETH) layer network
2. Ethernet PHY (ETY) layer network
The physical layer defined in IEEE 802.3
ETY layer
The pure packet layer
ETH layer
The ETH layer network is divided into ETH subnetworks that is also called what?
ETH Flow Domain (EFD)
A set of all ETH flow points transferring information within a given administrative portion of the ETH layer network.
An Ethernet Flow Domain (EFD)
True or False: EFDs may be partitioned into sets of nonoverlapping EFDs that are interconnected by ETH links.
True
Represents the smallest instance of an EFD
An IEEE 802.1D bridge
The termination of a Link is called what?
A flow point pool (FPP)
