Related by context. All words. (Click for frequent words.) 73 Sonet SDH 73 ROADMs 71 aggregation switches 71 SDH SONET 71 SONET rings 69 metro DWDM 69 linecards 69 Ethernet aggregation 69 OADM 69 pseudowire 68 Optical Multiservice Edge 68 Passive Optical Networks 68 Add Drop Multiplexers 68 CWDM DWDM 68 #Gbps Ethernet [001] 68 #Gbit s Ethernet [002] 68 Packet Optical 68 multiservice provisioning platform 68 multiservice switches 67 #Gbit Ethernet 67 photonic layer 67 Ethernet-over-SONET/SDH 67 OC-#/STM-# [001] 67 inverse multiplexing 67 CoreDirector 67 protocol Label Switching 67 Hi FOCuS 67 ROADM Reconfigurable Optical 67 IP DSLAMs 67 IMS architectures 67 Synchronous Optical Network 66 drop multiplexer ROADM 66 VoIP Gateways 66 PacketCable compliant 66 Ethernet SONET 66 Wavelength Division Multiplexing WDM 66 #G wavelengths [001] 66 Virtual Chassis 66 SFP transceivers 66 OADMs 66 Service Provisioning Platform 66 Ethernet Fibre Channel 66 OFDM orthogonal frequency 66 E#/T# 66 MSAPs 66 Resilient Packet Ring RPR 66 Infinera DTN 66 Add Drop Multiplexer 66 ONUs 66 LAN SAN 65 MSANs 65 M CMTS 65 CWDM 65 FTTH FTTP 65 Ethernet LANs 65 reconfigurable optical 65 SONET SDH 65 DWDM optical 65 Multiplexers 65 Calix C7 65 Service Provisioning Platforms 65 PONs 65 GPON optical 65 Ethernet switches 65 SONET SDH optical 65 multiservice aggregation 65 Ethernet MPLS 65 drop multiplexer 65 Gb Ethernet 65 Etherjack 65 Packet ONP 65 Gigabit Ethernet uplinks 65 NexTone SBC 65 GigE interfaces 65 Fibre Channel Gigabit Ethernet 65 Cisco IP NGN 65 Zhone MALC 65 VLX# 65 SONET EoS 65 SS7 signaling 65 #-Gbit/sec 65 TDM SONET 65 4Gbit s Fibre Channel 65 IP MPLS 65 BPON EPON 64 IP MPLS routers 64 GPON OLT 64 SONET SDH networks 64 Pseudowire 64 OC-#/STM-# [003] 64 Ethernet SONET SDH 64 SIGTRAN 64 BigIron RX 64 #G OTN [001] 64 IPoDWDM 64 Dense Wave Division Multiplexing 64 port #/#/# 64 #G Ethernet [001] 64 Access Devices EADs 64 SFP modules 64 stackable switches 64 Reconfigurable Optical Add 64 1G EPON 64 MPLS VPNs 64 #GigE [001] 64 Gbit Ethernet 64 #GbE interfaces 64 multichassis 64 drop multiplexers ROADMs 64 Coarse Wavelength Division Multiplexing 64 Nortel #G [001] 64 IMS SIP 64 multiprotocol 64 TDM ATM 64 IADs 64 FLASHWAVE 64 #Gigabit 64 Edge Routers 64 LoopStar 64 Gigabit Ethernet connectivity 64 Pseudowires 64 multiprotocol label switching 64 Serial RapidIO ® 64 Multiprotocol 64 NetIron MLX Series 64 #G Optical [001] 64 GGSN 64 Redback SmartEdge 64 #Gbps optical [001] 64 GPON EPON 64 T#/E# 64 TDMoIP 64 ATM Frame Relay 64 Common Photonic Layer 63 IPv4 IPv6 63 Wavelength Tracker 63 Access Gateways 63 MPLS backbone 63 VoIP softswitch 63 GPON ONT 63 Gigabit PON GPON 63 density #GbE 63 MPLS Multi 63 OC-#/STM-# [002] 63 multiservice edge 63 DS1s 63 Nortel Optical Multiservice 63 Optical Transport 63 bonded ADSL2 + 63 pseudowires 63 Optical Multiservice Edge OME 63 DWDM dense wavelength 63 seamless interworking 63 Frame Relay ATM 63 T1 E1 63 Gig Ethernet 63 metro ethernet 63 Fibre Channel InfiniBand 63 TDM IP 63 CMTSs 63 Rapid IO 63 Multiplexing 63 #/#/# Ethernet 63 TDM circuits 63 Multiservice Provisioning Platform MSPP 63 SAS expanders 63 ADSL2 + VDSL2 63 Fiber Channel 63 multiservice provisioning platforms 63 FTTx networks 63 Circuit Emulation 63 NPUs 63 #Gbit/sec Ethernet 63 OC-#/STM-# [004] 63 Alcatel OmniSwitch 63 DS1 DS3 63 IPv#/IPv# 63 #/#/# Mbps Ethernet 63 Ciena CN 63 Synchronous Digital Hierarchy 63 Optical Ethernet 63 Ethernet switching 63 trunking gateway 63 Wave Division Multiplexing 63 SONET 63 HyperPipe 63 hiT 63 4Gbit s 63 T1 circuits 63 SOHO routers 63 NGN IMS 63 Ethernet 63 dense wavelength division multiplexing 63 EoS 63 BroadLight BL# 63 SONET DWDM 63 TrueNet 63 Gbps Fibre Channel 63 MSBGs 63 Gbps wavelengths 63 DWDM 63 Ethernet interfaces 63 #Gb s Ethernet [002] 63 Multiprotocol Label Switching 63 coarse wavelength division multiplexing 63 zNID 63 division multiplexing 63 GigaMux 63 #G Ethernet ports 63 low latency InfiniBand 63 EtherTone 63 division multiplexing TDM 63 Access Platform ESAP 63 Gigabit Ethernet switches 62 VoATM 62 T#/E# circuits 62 Routing Switch 62 Nortel ERS 62 #/#G [003] 62 1GbE 62 Bonded ADSL2 + 62 Siemens SURPASS 62 Multiservice Edge 62 Ethernets 62 Optical Switch 62 Cisco CRS 1 62 Muxponder 62 Passive Optical Networking 62 Lucent IMS 62 converged packet 62 MSP# [002] 62 Residential Gateways 62 UDP TCP 62 VPN firewall 62 AdvancedMC modules 62 OfficeConnect 62 Signaling Gateway 62 ROADM 62 #Gig Ethernet 62 MAGNM 62 4Gbit/sec 62 #G optical [001] 62 WAN PHY 62 WDM ROADM 62 Ciena Carrier Ethernet 62 softswitching 62 #GbE switches 62 Service Access Nodes 62 LightSoft 62 MicroTCA platforms 62 IP Multicast 62 protocol analyzers 62 GigE 62 MetroMesh 62 IPNET 62 MEF certified 62 4Gbps FC 62 SM# AH 62 Packet Core 62 MVTS Pro 62 #gbps 62 cable modem termination 62 OTU3 62 #Gigabit Ethernet 62 ISR G2 62 Hi FOCuS TM 62 muxponder 62 Gigabit Ethernet transceivers 62 Hitachi EPON 62 ADVA Fiber Service 62 VoBB 62 haul DWDM 62 programmable Ethernet switches 62 pluggable modules 62 #G #G [002] 62 Application Delivery Controllers 62 Data Serving Node 62 MPLS VPLS 62 Tunable XFP 62 pluggable optics 62 Fiber Driver 62 IP SAS SATA 62 multi terabit 62 converged IP MPLS 62 3Com Switch 62 #GbE connectivity 62 Layer 2/Layer 3 62 HP EVA 62 FCoE switches 62 GbE connectivity 62 ADSL2Plus 62 Services zl Module 62 T-BERD/MTS-#A 62 Softswitches 62 BigBand Cuda 62 SEGway 62 Gbps transponders 62 ADSL VDSL 62 wavelength division multiplexing 62 MLX Series 62 mSwitch 62 PoE switches 62 #.#abg 62 TPSDA 62 MPLS TP 62 Ciena CoreDirector 61 metro WDM 61 Serdes 61 femtocell gateway 61 IP MPLS router 61 mesh topology 61 Gigabit Ethernet Fibre Channel 61 Sigtran 61 SFP + modules 61 ADVA FSP 61 Switch Routers 61 Gigabit Ethernet interfaces 61 Switch Router 61 8G Fibre Channel 61 FibeAir #T 61 EtherReach 61 4GFC 61 Infinera PICs 61 Prestera DX 61 SLTE 61 Corrigent 61 SONET SDH protocols 61 #G transponders 61 Infinera DTN optical 61 Access Node MSAN 61 modulation formats 61 Core Router 61 Carrier Ethernet Switch Routers 61 Wavelength Division Multiplexing 61 4G Fibre Channel 61 multiservice routers 61 DWDM optical transport 61 Juniper T# 61 Packet Processing 61 TCP acceleration 61 OmniPCX Enterprise 61 Asynchronous Transfer Mode 61 8Gbit s 61 gigabit ports 61 #GE [002] 61 Hitachi AMN# 61 Juniper routers 61 edge QAMs 61 MegaRAID adapters 61 #G/#G/LTE 61 GbE switches 61 IPv#/v# 61 BroadGate 61 Signaling Gateways 61 Myri #G 61 midspans 61 mux demux 61 MSBG 61 #/#BASE-T 61 FastIron GS Series 61 #.#AE 61 vNIC 61 ethernet switches 61 EoC 61 MobileVoIP 61 DOCSIS cable modems 61 ADSL2 + VDSL 61 #Gb Fibre Channel 61 FastIron SuperX 61 multiservice switching 61 #Gb s [001] 61 VPN router 61 NetIron XMR 61 Switched Digital 61 NetIron XMR Series 61 crosspoint switches 61 IP VPNs 61 fieldbuses 61 Ethernet Extenders 61 #G wavelengths [002] 61 Sonet 61 Gigabit interfaces 61 Brocade DCX 4S 61 ETX #A 61 GbE 61 FastIron Edge X 61 Mediant 61 Session Initiated Protocol SIP 61 Channel HBAs 61 SRIO 61 digital headend 61 OPTera Metro 61 #G/#G [001] 61 VDSL#/ADSL# + 61 #Gbit/sec 61 NEBS certified 61 IP Multimedia Subsystems 61 SFP ports 61 BlackDiamond #K 61 IP MPLS VPN 61 Gigabit Ethernet GbE 61 Ciena ActivFlex 61 TDM Ethernet 61 QDR InfiniBand 61 IP NGNs 61 wireless mesh nodes 61 Digivance 61 OTN switching 61 Aricent ISS 61 Cat 6a 61 2G #.#G 61 #BaseT [003] 61 IP NGN 61 SmartEdge platform 61 IPSec encryption 61 IPsec VPNs 61 #GbE switch 61 GbE interfaces 61 WDM PON 61 4Gb Fibre Channel 61 CWDM wavelengths 61 Gigabit Ethernet 61 DS0 61 1G #.#G 61 8Gbit/sec 61 Ethernet Switch 61 EtherSphere 61 #G/#G optical 61 iWDM 61 Visual UpTime Select 61 Hitachi Com 61 unmanaged switches 61 serdes 61 1Gbit/sec 61 softswitch architecture 61 M7i 61 SMSCs 61 Gen2 switches 61 WLAN switches 61 4Gbps 61 Flexi NG 61 IP VPN MPLS 61 mesh backhaul 61 Ethernet WAN 61 gigabit Ethernet switches 61 SIP Trunk 61 Raman amplification 61 FC HBAs 61 WDM wavelength division multiplexing 61 DWDM CWDM 60 OSSs 60 HomePlug powerline 60 Nortel Common Photonic 60 NAS gateways 60 LambdaDriver 60 IP DSLAM 60 AdvancedMCs 60 Alcatel OmniAccess 60 SS7 ATM 60 IPTV STB 60 Fujitsu FLASHWAVE 60 MSC Servers 60 Connection Oriented 60 NetRing 60 Force# C# 60 SyncE 60 Taqua MobileWorks 60 iFCP 60 Network Operator GTT 60 SONET Ethernet 60 Octasic Vocallo MGW 60 PWE3 60 optical DWDM 60 Assurance Solution 60 ECI Hi FOCuS 60 MoCA enabled 60 XDM 60 #X# MIMO 60 IP Multiprotocol Label 60 Brocade DCX Backbone 60 MileGate 60 IP MPLS Ethernet 60 Gigabit 60 Ethernet Gigabit Ethernet 60 FTTP deployments 60 Alvarion WiMAX 60 MIMO antenna technology 60 SOHO router 60 Megaco 60 CSU DSU 60 8GFC 60 Foundry FastIron 60 SIP Session Initiated Protocol 60 iDirect Evolution platform 60 #GE ports 60 Flashwave 60 Virtual Concatenation VCAT 60 SAN connectivity 60 network adapters CNAs 60 ECI XDM 60 OLTs 60 HN# Series 60 1G 2G 60 SIP SS7 60 BPON 60 OTDRs 60 Calix E7 Ethernet 60 DWDM wavelengths 60 XFP modules 60 VoIP gateways 60 OCTEON II processors 60 IP RAN 60 WLan 60 Ethernet backhaul 60 SoftSwitch 60 VPN gateway 60 GPRS CDMA 60 Brocade VCS 60 Ethernet Fabric 60 FlexPort 60 packet switched 60 #/#.#G 60 MPLS routers 60 Voltaire InfiniBand 60 LANShield Switch 60 ONTs 60 Fujitsu FLASHWAVE ® 60 Line Terminal OLT 60 Altera FPGAs 60 Frame Relay 60 VOIP gateways 60 MXV# 60 OC# [003] 60 Ikanos chipsets 60 XFP module 60 NexTone IntelliConnect System 60 G9 Converged Gateway 60 EtherEdge 60 NetIron 60 routers 60 Emulex InSpeed 60 DWDM Dense Wavelength Division 60 OSI Layer 60 2Gbit s 60 #/#G [002] 60 Gigabit Ethernet #GE 60 #GE switches 60 RFoG 60 NexusLink 60 HotZone Duo 60 UltraBand 60 1x RTT 60 IP centrex 60 E1 T1 60 VoDSL 60 Carrier Ethernet switches 60 Network Adapters 60 T1 DS3 60 PBB TE 60 SIP endpoints 60 Cirrus Softswitch 60 FibeAir IP 60 xPON 60 serial RapidIO 60 Computing Architecture ATCA 60 #GbE ports 60 EPON GPON 60 sRIO 60 PSTN connectivity 60 cellular backhaul 60 Amino STBs 60 FTTH FTTB 60 Edge QAM 60 encryptors 60 WAN interfaces 60 Gigabit connectivity 60 Multidimensional Ethernet 60 Tekelec EAGLE 5 60 MetaSwitch VP# 60 Nortel Networks Passport 60 SHDSL 60 QLogic Fibre Channel 60 Essentra BAX 60 MyCall 60 RRHs 60 PDH SDH 60 datacomms 60 Sorrento Networks GigaMux 60 WiMAX modems 60 Loop Carrier BLC 60 Enea LINX 60 Cyan Z Series 60 4X InfiniBand 60 Gbps Ethernet 60 PON OLT 60 statistically multiplexed 60 transceiver modules 60 #Base T [001] 60 SGSN 60 Juniper Networks EX 60 Iuh 60 Sonus IMS 60 Zarlink CESoP 60 BXR # 60 #G Ethernet switch 60 wireless basestations 60 PowerQUICC III processor 60 MetroNID 59 SS7 ISDN 59 Adaptive Optical Engine 59 SANTap 59 VPN routers 59 SDIO interface 59 sub channelization 59 #Gb s Fibre Channel 59 multiservice optical 59 Gigabit Ethernet Passive Optical 59 units ONUs 59 Customer Premise Equipment CPE 59 DSLAM 59 FortiSwitch 59 TDM VoIP 59 TCI# 59 hybrid STBs 59 mobile backhaul 59 IP multicast 59 Storage Nodes 59 ZyAIR B 59 Alcatel Lucent IP MPLS 59 HDSL 59 CoreStream Agility 59 wideband codecs 59 XENPAK X2 59 ADSL/ADSL2 + 59 PCIe Gen2 59 T#/E#/J# 59 OmniReach 59 Cisco ISR 59 FlexTCA 59 Gbps interfaces 59 T#/E# interfaces 59 Services Routers 59 microTCA 59 Management Entity MME 59 picocells 59 legacy TDM 59 iMAP 59 SURFboard 59 POTS DSL 59 gigabit switch 59 Alcatel Lucent OmniSwitch 59 Gigabit Ethernet adapters 59 NEBS compliant 59 multimode fibers 59 Fabric Switches 59 embeddedMIND 59 SIP H# 59 QAM channels 59 1G Ethernet 59 Jag Bolaria senior 59 SS#/C# 59 Secure Router 59 InfiniBand Adapters 59 GPIB interface 59 interwork 59 IP MPLS routing 59 GENBAND G9 59 Midspans 59 synchronous optical 59 multihop 59 ADSL ADSL2 + 59 3GPP IMS 59 IP MPLS backbone 59 1GigE 59 IronPoint 59 modular CMTS 59 PoE ports 59 packet optical 59 #G ATCA 59 FTTx deployments 59 LTE EPC 59 SCSI Fibre Channel 59 Inter mediatE 59 GPON 59 framer mapper 59 GigaEdge 59 #G DWDM [001] 59 Vmux 59 Multiservice 59 TestPoint 59 Gbps optical 59 G PON 59 TigerAccess 59 Packet Optical Edge 59 #G/#G [003] 59 Service Delivery CESD 59 #Gb Ethernet [001] 59 Serial RapidIO 59 C#x + DSP 59 Spanning Tree 59 Virtual Fabric 59 AVANTA 59 SDH PDH 59 SONET SDH PDH 59 Orckit Corrigent CM 59 IPmux 59 Packet Optical Platform 59 backhaul 59 G.SHDSL 59 Ciena #G 59 Aggregation Switch 59 lossless Ethernet 59 UMA GAN 59 Cavium OCTEON 59 iSCSI HBA functionality 59 Brocade BigIron RX 59 Profinet IO 59 BridgeX 59 FlexSelect 59 Covaro 59 Packet Optical Networking 59 2Gb Fibre Channel 59 LTE WiMAX 59 Platform MSAP 59 3Com H3C 59 LightGAIN 59 Drop Multiplexer ROADM 59 NetCracker OSS 59 XRN 59 #.#n APs 59 Calix E7 ESAP 59 ExtremeXOS ® operating 59 Gbps InfiniBand 59 #G GPON 59 UMTS femtocell 59 FSP #RE 59 SFP + ports 59 Gb s Fibre Channel 59 WDM optical 59 HDMI switchers 59 #Gbs 59 VRRP 59 #G/#.#G 59 gigabit serial 59 ATCA blade 59 Building FTTB 59 Agilent N2X 59 ActivFlex 59 Accolade WCS 59 virtual LANs 59 PCIe GbE 59 Centrex IP 59 DSL T1 59 MGCP 59 Provider Backbone Bridging 59 line terminals OLTs 59 POTS interfaces 59 WinPath 59 Wintegra WinPath 59 Ethernet Switching 59 IPnexus 59 IPTV VoD 59 MEGACO 59 Encryptors 59 Multiprotocol Router 59 Packet Transport 59 Cisco TrustSec 59 LambdaUnite 59 TCP IP Offload Engine 59 Pseudo Wire 59 ZigBee protocol 59 IMS NGN 59 AnyConnect 59 TDM telephony 59 ServerIron 59 Edge OME 59 Multi Protocol Label 59 #G wavelength [002] 59 Ethernet Switches 59 XFPs 59 Single RAN 59 multiplexers 59 Vx7 59 Routers Switches 59 Cable Modem 59 PCIe interconnect 59 Bonded DSL 59 Iub 59 Gbps DWDM 59 AdvancedMC AMC 59 InfiniBand clusters 59 MRV Fiber Driver 59 metro Ethernet 59 JenNet 59 Motorola AXS# 59 PacketLogic PL# [002] 59 MSTP 59 WPANs 59 Ixia IxNetwork 59 Ethernet VPNs 59 #G Ethernet switches 59 OneConnect ™ 59 mesh nodes 59 T#/E# T#/E# 59 ARRIS C4 CMTS 59 ATCA AMC 59 #G/#G/#G 59 iConverter 59 Nortel Optical 59 FastIron GS STK 59 Router 59 fiber backbones 59 pluggable module 59 Multi Gigabit 59 Gigabit Ethernet WAN 58 Premises FTTP 58 #.#-# WiMAX 58 Ethernet WDM 58 Nortel Networks OPTera Metro 58 IP softswitch 58 SwitchBlade x# 58 FibreChannel 58 Dual Homing 58 AdvancedTCA chassis 58 Beamforming 58 asynchronous transfer 58 #.#ah 58 FlexSelect Architecture 58 SONET SDH OTN 58 OpenRG 58 Spirent Landslide 58 Kontron AT# 58 Spirent TestCenter 58 EDFAs 58 crosspoints 58 Gen2 PCI Express 58 Xyratex F#E 58 ControlSwitch 58 interswitch links 58 unshielded twisted pair 58 MSPP 58 WAN routers 58 EPON 58 Storage Controllers 58 RackSwitch G# 58 KVMs 58 CDMA femtocell 58 packetized 58 GE PON 58 #GbE SFP + 58 Netstender 58 EX# Ethernet Switches 58 SIP IMS 58 XENPAK 58 Vx# [002] 58 Customer Premises Equipment CPE 58 #Base SX 58 UTP cables 58 #bit MCUs 58 serial interfaces 58 Embedded Module 58 femto cells 58 Access Node 58 Cavium Octeon 58 sensor actuator 58 PCI Express interface 58 SpectralWave 58 Netgear ProSafe 58 #Gbps [001] 58 IPTV Middleware 58 8Gbps Fibre Channel 58 LLDP MED 58 FlexPath 58 DCOSS 58 Turbo EPON 58 #/#/# Ethernet ports 58 FICON connectivity 58 #GbE [001] 58 #Gig [001] 58 Fibre Channel HBA 58 Infinera Digital 58 FastIron 58 Device Servers 58 Cisco ONS 58 PremierSERV 58 #Gbit s [001] 58 Gigabit Ethernet GigE 58 SmartVoice 58 GbE Gigabit Ethernet 58 TDM PBX 58 switches routers 58 SDH Synchronous Digital Hierarchy 58 CPE gateways 58 Essentra EX 58 eNodeB 58 fiber coaxial 58 Fibre Channel FICON 58 XFP optics 58 QoS VLAN 58 CopperCom CSX 58 DS# [002] 58 Bandwidth Virtualization 58 Comverse ONE 58 Packet Processor 58 reconfigurable optical add 58 #.#aq 58 EdgePoint PRO 58 Ethernet OAM 58 PHY SerDes 58 Juniper MX# 58 Acopia ARX 58 Gbit s Ethernet 58 Gigabit uplinks 58 AMN# [002] 58 WiMAX basestation 58 MetaSwitch softswitch 58 AudioCodes Mediant 58 RFS# 58 NetIron MLX 58 Mini Socket iWiFi 58 SerDes chipset 58 MPLS IP VPN 58 Support Node SGSN 58 optical transceiver module 58 GigE connectivity 58 MPLS 58 SFP transceiver 58 Transparent LAN 58 FusionWorks 58 NexTone MSC 58 Flexi NS 58 LAN PHY 58 Copper Cabling System 58 E7 ESAP 58 CLARiiON CX3 58 U4EA Fusion 58 Aruba wireless LAN 58 MXK platform 58 Long Haul DWDM 58 dual radio BelAir# 58 Fusiv 58 3G multimode 58 Motorola BSR # 58 StarFabric 58 DOCSIS ® 58 LANShield Controller 58 IEEE#.# [001] 58 BigIron MG8 58 TDM switches 58 Engineering PBB TE 58 MTS #A 58 MACsec 58 Atheros WLAN 58 equipment manufacturers TEMs 58 G6 Universal 58 PCIe Gen 2 58 NEMs 58 Fibre Channel adapters 58 Quintum Tenor 58 H3C S# [002] 58 iWarp 58 Modular CMTS 58 Cisco AON 58 iNAV 58 PDSN 58 MPLS Multiprotocol Label Switching 58 network topologies 58 GPON ONTs 58 packet forwarding 58 Routers 58 LambdaUnite R 58 VQE 58 EliteAAA 58 HSDPA EDGE 58 Ethernet GbE 58 DCX Backbone 58 ASN Gateway 58 #Gbit [001] 58 reconfigurability 58 Actelis ML# 58 Etherjack ® 58 RFPON 58 1Net framework 58 uplink ports 58 Link Aggregation 58 InSpeed 58 Fibre Channel iSCSI 58 ASN GW 58 L2 L3 58 VPN tunneling 58 Selects Ciena 58 EtherNID TM 58 IPTube 58 LatticeEC 58 Ethernet NICs 58 Wideband Networking Waveform 58 Common Photonic Layer CPL 58 tunable DWDM 58 port #G Ethernet