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VBR (Variable Bit Rate), 211
verbose option, for showing session information, 43
videoconferencing, 123
virtual private LAN service. See VPLS
virtual private networks. See VPNs
Virtual Private Wire Service (VPWS), 163–164
Virtual Router (VR), 160–162
voice calls
with silence suppression, 115–117
traffic engineering, 123
voice carrier market, 230
Voice over IP (VoIP), 190, 238
VPLS (virtual private LAN service) networks, 165–166
VPN Layer-3 MPLS, 156–157
VPN Peer Model, 155–161
VPN overlay model, 152
VPN tunnels, 146–147
VPNs (virtual private networks)
fully meshed, 154
introduction, 142–143
optical. See OVPNs
sales, MPLS, 228, 230–231
types compared, 171
VPWS (Virtual Private Wire Service), 161–162
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