See also EPONs
(Ethernet PONs)
benefits and shortcomings of, 177
drivers for, 172??“175
overview of, 163??“164
solutions for, 506??“511, 513
technology description of, 164??“165
transmissions in, 177
PoP (point of presence) locations, use
of EoF and EoWDM in, 226
preamble in Ethernet frame, bytes
and description of, 7
private VLANs, use of, 393
protection mechanisms. See also
MPLS protection
use with Carrier Ethernet, 84
use in RPR, 343??“346
protocols
for circuit bonding, 279
mapping onto different formats,
265??“266
Provider Backbone Bridge Traffic
Engineering, development
of, 417
Provider Bridge Transport (PBT),
relationship to QoS, 85
provider bridges. See also bridges;
Q-in-Q model
interconnecting clouds
of, 389??“390
layering, 386??“387
limitations of, 392??“395
and MAC address
transparency, 387
and number of customer MAC
addresses, 392
and number of VLANs,
392??“394
and rate policing, 387??“388
and spanning tree convergence
time, 394??“395
and S-VLAN tags, 384??“386
and VID translation, 388??“389
PSCs (passive splitter combiners),
use in PONs, 177
pseudowire, use with EoS, 319
PseudoWire Emulation Edgeto-
Edge (PWE3), use with
EoS, 319
pseudowire forwarding, 436??“438
pseudowire OAM
capability of, 448
development of, 439??“440
pseudowire redundancy, example of,
440??“441
pseudowires
establishing, 438??“439
overview of, 435??“436
PtM (point-to-multipoint)
mesh network, explanation
of, 247
PtP (point-to-point) mesh network
explanation of, 247
vendor solutions for, 261??“262
public wireline, capital expenditures
for, 113
PW label, role in pseudowire
forwarding, 436
PWE3 (PseudoWire Emulation
Edge-to-Edge), use
with EoS, 319
PWid FEC, definition of,
438??“439
Q
Q-in-Q model.
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