ciena 6500 configuration guide. 6500-7 E-Suite ROADM configuration spectral efficiency and delaying new build-outs, Cienas coherent 40G and 100G solutions operate seamlessly For smaller, simpler network configurations, passive photonics alongside 10G wavelengths, maximizing the traffic-carrying can be used for lowest capital expenditures. ciena 6500 configuration guide

 
 6500-7 E-Suite ROADM configuration spectral efficiency and delaying new build-outs, Cienas coherent 40G and 100G solutions operate seamlessly For smaller, simpler network configurations, passive photonics alongside 10G wavelengths, maximizing the traffic-carrying can be used for lowest capital expendituresciena 6500 configuration guide  where <version> is the application solution (MCP) software version

Step 1: First make sure that Optical link in between CIENA to CIENA port is up through third party network. 8700 Packetwave Platform data sheet. Make sure the FTP port on the computer is unblocked. Technical Information Section 6500-S32 Packet-Optical Single onverged atform ddressing tworking requirement ro h dg h ore. • Creating a Configuration Hierarchy. The 6500 offers integrated OTN and packet switching, for the based packet and OTN switching solutions; the configuration. Bias-Free Language. Note We recommend that you save the packaging material for use later if you need to move the chassis. Supports zero-touch provisioning to minimize OPEX and accelerate service turn-up while providing a. 6500-D14/S14 6500 Packet-Optical Platform. Hi, We have ciena 3928 and i couldn't console via putty after i gave all the relevant configuration on the serial port. It provides highly dense ROADM and amplifier configurations so you can quickly react to unpredictable traffic. Ciena Commands. Scroll until you find 6500 Packet-Optical Platform Technical Documentation and select the folder. Enter to Configuration mode of the device (config terminal, for example). The layer mapping model can be controlled with the following configuration option. pdf Page 121 - Centralized user administration and authentication through TACACS+Service Manual Ciena 6500 - This Service Manual or Workshop Manual or Repair Manual is the technical document containing instructions on how to keep the product working properly. Cienas 6500 supports both muxponder- and central fabric-. 3. The 6500-T12/T24 shelves, operate with the robust and feature-rich 6500 software, and support high-density, high-capacity hardware modules. Step 3: In the Product Documentation tab, find and select the applicable product (ie. I was curious if others have seen this. After you start the VNC viewer, specify the VNC display window size by typing the hostname, a colon, and then the VNC display number. Access the Ciena Portal and follow the steps below:  Step 1: On the left vertical bar, select Knowledge. 6500 Packet Transport System product data sheet. yml file. All worked fine until three weeks ago suddenly the traffic dropped and there was no traffic between the ISP and the local network. 5” front bay drive configurations (plus up to 2 rear drives). Choose MCP UI > System > Adaptive IP administration > Admin > Recorder Config in the web interface to open the Recorder Configuration page. 3 Terminology This section defines the terminology used throughout this ST. x. For a zone to appear on the BGP Peering page in the web user interface, it must contain a BGP instance and a Traffic Recording. To enable multi-zone traffic at the top-level domain of the configuration hierarchy, select Add > Domain then select Multi Domain Traffic. 5. I have searched the "maze" of technical documents on Ciena library but can't find. In MCP a Node maps to a single physical device. Here we have configured a Aggregate and this is also in LACP configuration. The 8700 is specifically optimized for 10GbE to 100GbE switching and aggregation, allowing you to deliver higher rate ports, services, and connections to meet market demands. Broadband Inter-Carrier Interfaces; B-ISDN Inter-carrier Interface. 6500. Sole title to the Software and documentation, to any derivative works, and to any associated patents and copyrights, remains with Ciena or its licensors. Select displayTimezone. The question is if the 6500 Ciena DWDM listed has been tested with Cisco 9706 MDS SAN Director and firmware NX-OS 8. Links and/or nodes are systematically failed along paths in the topology based on configured settings. I have a 6500. One platform, full flexibility. Not for 6500 packet-optical shelves. 2 Tb/s of unrestricted hybrid packet/OTN switching for an. Note as well that for eMOTR and PKT fabric, the 6500 only supports SNMPv3 as the 6500 SP uses an SNMPv3 proxy for eMOTR and PKT fabric. Click the Path tab. STEP 1: Check if there is only a Loss Of Clock alarm on one end of the system: STEP 2: If possible, confirm that each port involved is configured with the same wavelength and has the same incoming trace. Once you are in Documentation you can scroll down for 6500 and click over it, You will find various. Advantages of Ciena’s packet/OTN switched solutions include:The Flow Recorder supports both Netflow and sFlow (including sFlow v5) protocols. Continually stay ahead of unpredictable customer demands with Ciena’s proven 6500 D/S-Series Packet Optical Platforms. 43 and Transport Interface 4X10G OTR 4X XFP/4X SFP+ with Encryption, we need to know if these Ciena DWDM have compatibility to connect to SAN Cisco MDS 9706 Multilayer Director with. 0 mode is incompatible with MCP deployments, which uses both C and L band photonic services, since MCP internal model will have a common OTS layer, but separate C and L band OMS termination points and associated forwarding entities. 3928. Then locate the product and SAOS version. Steps. 0-certified for E-Line, E-LAN, E-Tree, and E-Access for improved service offerings; E-Line and E-Access up to and including 100GbE. Ciena OME 6500 devices, OS version 10. Please double check that it is the correct fuse. IS12000. Observer: basic visibility of network elements and. • Viewing and Configuring Replication. The alarms may be different depending on the software version you're running on your 6500 network - you should download the appropriate manuals from the Ciena portal (the Alarm Clearing guide is divided into two PDFs). BIP. The other 50% are not available (ping is down). 6500 only supports GMT. Perform the following steps to create a backup maintenance profile using the MCP UI. 6. Z-Series: Node unresponsive in Planet Operate due to throttling errors and High CPU utilization. Resolution/Answer. RLS: How to clear OSRP Link down alarm due to fiber break. IS12000. I hope this helps. With the ability to provide on-demand connectivity and terabit switching, you can continually stay ahead of unpredictable customer demands with Ciena’s 6500 T-Series Packet Optical Platforms. Ciena Operational Commands. Ciena is a global leader in optical and routing systems, services, and automation software. 15000 THz/1528. UCM6204_quick_installation_guide. 6500 Packet-Optical Platform Installation - 14-slot Shelves. The following is the sequence of steps performed for 6500 upgrade in MCP: Download 6500 software from to a file server. 5 (or later) customer documentation to add new ROADMs and perform system lineup and testing (SLAT) based on the. The alarm identifier from the device. Provides advanced Carrier Ethernet and low TCO, powered by Ciena’s SAOS. show software. Step 2) Make sure the expected address and actual address is populated in ADJ. Continually stay ahead of unpredictable customer demands with Ciena’s proven 6500 D/S-Series Packet Optical Platforms. Access the Ciena Portal and follow the steps below: Step 1: On the left vertical bar, select Knowledge. We are covering Ciena 3900 series (3902, 3916, 3920, 3930, 3940, 3960, etc. The 6500 Reconfigurable Line System (RLS) is a compact, simple-to-deploy, photonic layer solution that improves scalability, reduces footprint, and offers more flexibility and programmability. resourceTypes. Setting Up the Geolocation Map. MCP provides a list of configurable parameters that are used for allocating SIDs. All while taking up less space. Steps. All pluggable specification sheet is available in a separate document being published by Ciena Technical Publication document. 3903 Platform. 5K. Global parameter list. The Cisco has a portchannel configuration in LACP which end's up in a Virtual Switch configuration in the Ciena 6500. Not for 6500 packet-optical shelves. Table 1-1 Catalyst 6500 Series Switch Installation Process. lukman hakim. The display updates every 30 seconds. This command does not clear the boot variables, such as config-register and boot system settings. parameters modifiedMCP DocumentationNow is the time to go beyond legacy Network Management Systems (NMS) and industry Software-Defined Networking (SDN) practices and take network operations to a new level with multi-layer intelligent network control, offered by Ciena’s Manage, Control and Plan (MCP) Applications. Features industry-leading 10GE density in a non-blocking, wire-speed architecture with 24 10GE/1GE multi-rate SFP+ ports. 6500-7 E-Suite ROADM configuration spectral efficiency and delaying new build-outs, Cienas coherent 40G and 100G solutions operate seamlessly For smaller, simpler network configurations, passive photonics alongside 10G wavelengths, maximizing the traffic-carrying can be used for lowest capital expenditures. IS-IS Recorder Settings. This is how all. Preview. Interop Issue Cisco 4500 - Ciena 6500. 49K views Top Rated Answers All Answers Amit G1 (Customer) 5 years ago Please use this link and under product documentation - ALL PRODUCTS. You can configure authentication to be performed locally or through a remote TACACS+ or RADIUS server. Table 2. 365 of the U. 6500 Packet-Optical Platform. David G28 (Customer) asked a question. Ciena’s 6500 Packet Transport System (PTS) addresses the growing need to maintain profitable delivery of TDM services while. 3_Admin_Security)_Issue1. MCP - License Server Unavailable to 6500's. 24/7 in-flight data protection with wire-speed encryption As part of Ciena’s multi-layer security approach that ensures the confidentiality, integrity, and availability of data in the network, the 6500 offers advanced integrated AES-256Course Description. The status shows the worst. Number of Views 590. The "Edit" dialog displays. The flexibility of the 6500 platform starts with the variety of services it can. x states Ciena has passed responsibility for providing the. Architected for high-capacity applications, Ciena’s 6500-D14/S14 configurations converge comprehensive Ethernet, TDM, and WDM capabilities with unconstrained hybrid packet/OTN switching and an intelligent control plane to maximize the bandwidth efficiency and flexibility of the overall network. Please note that TR547 v. Please help. Designed for high-capacity networking, the 6500-S32 Packet-Optical Platform converges comprehensive Ethernet, TDM, and WDM capabilities with unconstrained hybrid packet/OTN switching and an intelligent control plane to maximize the bandwidth efficiency. Upvote Upvoted Remove Upvote. Ciena’s 6500 Packet Transport System (PTS) addresses the growing need to maintain profitable delivery of TDM services while future-proofing investments to an all-packet network modernization. OneControl : 8700 and 5170 nodes are constantly resyncing. This configuration allows the Photonic Control Plane in the network to select the optimal center frequency. Create a copy of the logrotate. 2) (ciena. Nic Benvenuti, Senior Director, Product Line Management, gives an overview of Ciena’s 6500 Family of Packet-Optical Platforms, that integrate the latest technology innovation across three comprehensive networking layers and multiple chassis form factors, to enable a. start the remote site application, correct the IPsec configuration between sites, restore the physical or networking issue) Additional Details: Not Applicable. Figure 2. x) When configured with SAOS software stream 10. Architected for high-capacity applications, Ciena’s 6500-D14/S14 configurations converge comprehensive Ethernet, TDM, and WDM capabilities with unconstrained hybrid. You can configure window sizes individually for. 255 longer-prefixes show ip route connected show. 06. Redefining optical with advanced software applications. Ciena Commands. Shipped as part of the accessory kit are chassis installation kits and cable guides. Low footprint 1RU in a nonblocking architecture with: - 6 x 1GbE/10GbE SFP+ ports - 2 x 100M/1GbE ports. 2) Mac. Guidelines for. Choosing a Ciena OME 6500-D2 will increase your network support on the Ciena OME 6500-D7/S8 configuration allowing you to bridge the ethernet, WDM and TDM rack configurations providing the capacity to meet web-scale demand, as well as Ciena's 6500 Optical Platform Converges package, optical transport For 6500 Photonics OTS link (Fibre) and OMS link (ROADMLine), there are a few rules governing the total capacity: A maximum C-band allocation is 191. Ciena’s D-NFVI Software comprises three main components: • Ciena’s Base Virtualization OS includes an environment with kernel, user space, and application runtime framework, as required by the VNFs to be deployed. Contacting Ciena For additional office locations and phone numbers, please visit the Ciena web site at Corporate Headquarters 410-694-5700 or 800-921-1144 Customer Technical. Collector CLI command. For additional details and support for configuring MCP to use this non-default MCP configuration, contact Ciena. Ciena’s 3948 is a cost-effective router designed to address the requirements for higher capacity and end-to-end disaggregated IP services at the network access, supporting 4G network evolution, 5G deployments, enterprises, and next-generation business services. Installing the switch. 13 answers 2. 8G, 4x25G, WDM, SMF, 1310nm, 10km CFP2). This architecture capacity. Procedure to replace a power card in a 7 slot 6500 chassis. Command. 5” front bay drive configuration. 4. on your website. This Security Policy describes how the Ciena 6500 Packet-Optical Platform 4x10G meets the security requirements of Federal Information Processing Standards (FIPS). Steps. MCP DocumentationFor the first command: Step 1: Login to RLS CLI with an account with proper privilege. MEF CE 2. 2Tb/s of switching capacity. For the purposes of this. The 6500-D2 is part of the 6500 Family of Packet-Optical Platforms, which offers multiple chassis form factors to provide flexible, cost-optimized configurations to best match site-specific requirements. Via Live Support Chat button on Cases page. Choose the Admin tab. Refer to the section “SNC Status Diagnostics” found in ciena document 6500 Packet-Optical Platform Control Plane Application Guide Layer 1 (OTN), NTRN71AA. When it gets to the 6500, it comes in on port 31/1 which is on the same virtual-switch and VLAN as port 14/1. Using the MCP UI, select System > Configuration. ciena. show slots 5 config pwr-profile set ciena-6500r-slots:slots "5" config pwr-profile "1,BAND-C" target power "1" p -14. Installation - 14-slot Shelves Release 12. we use 6500 GNE configuration with redundant ARP GNE. 1. Gem Cable has been able to exceed our customer's expectations by offering an equipment installation and. Table 1. Steps. Ciena Operational Commands. Depending upon port configuration and which version of the platform is being used, a single. 5G and 1G subring configuration is supported from quite old release, but to confirm about MPLS I would like to know your working software release on the NE. Ciena’s 3928 Platform is a cost-effective platform for 10 Gb/s Ethernet service delivery in a variety of business or mobile backhaul environments. S onver f w requir ore. Choose Flow Recorder settings: Configure Flow Recorder Parameters. In the MCP UI, select System. Create a NE maintenance profile for the 6500 upgrade. If you are using Site Manager, in the Edit/Preferences, you can set the TIme Zone display from NE to Local OS / PC. Hi @Brian W1 (Customer) You can find this information on e. 5. Click Edit. With Ciena’s MCP domain controller as their foundation, MCP. Ciena uses cookies to ensure that we give you the best experience when visiting our website, as well as to enhance the overall quality of our site. . Not sure if i can share the document here but it contains the following topics related to TACACS Filename: 323-1851-301_(6500_R12. The Connecting to the Console Port—Supervisor Engine Only. Step 3: In the Product Documentation tab, find and select the applicable product (ie. 93 nm to 196. UCM6204_quick_installation_guide. Step 2: Select Documentation. 38 nm for a total of 4825 GHz of spectrum. VPWS indicates that this is a Virtual Private Wire Service. From 800G performance optics and 400G coherent pluggables to control plane automation, you can seamlessly maximize your investment into the future with. This is from the Installation/Ordering documentation for the 6500 32-slot shelf (if you ordered from Ciena): Included lugs are Hubbell/Burndy p/n YAV2CL2NT10FX90 (Copper Compression Lug, Narrow. This card is having 4*Lanes for 100G OTU4, how to measure optical power using optical test set. Type “displayTimezone” in the Key field on the left panel. You can use the MCP REST API to generate reports containing detailed information about some elements of the managed network. New peers are shown in the BGP Peers table when connections are received. Once you're on Libraries, select the column header Name to filter the libraries alphabetically. 0 + Errata 20180314 [NDcPP] defines a. blueplanet. Network admin: full control of network elements and services. Figure 3. CHAPTER 38-1 Cisco IOS Software Configuration Guide, Release 15. OneControl : 8700 and 5170 nodes are constantly resyncing. ajay m (Customer) asked a question. Ciena uses cookies to ensure that we give you the best experience when visiting our website, as well as to enhance the overall quality of our site. Log in to the OME 6500 as ADMIN or as a user with ADMIN privileges. SP w/access panel (SPAP) SP w/access panel (SPAP-2) w/2xOSC 2xSFP. After examining Adv Enet Config guide for SAOS, I am confused regarding port. 24/7 in-flight data protection with wire-speed encryption As part of Ciena’s multi-layer security approach that ensures the confidentiality, integrity, and availability of data in the network, the 6500 offers advanced integrated AES-256Network Configuration Manager helps you manage the device configuration of Ciena Switch. Table 1. Resolution/Answer. Select Adaptive IP administration > Admin > VNC Configuration. From the Waveserver - 6500 interworking NTP: For more information on the Waveserver, including installation and system configuration, refer to the Waveserver User Guide,. Autoranging input with power factor correction (PFC) Note Power factor correction is a standard feature on all Catalyst 6500 series AC-input power supplies. Configure the following settings. ) The Ciena 6500 Packet optical platform 2-Slot , 7-Slot ,14 Slot and 32 Slot Box is widely used . Basic Input/Output System. This configuration allows the Photonic Control Plane in the network to select the optimal center frequency. ajay m (Customer) asked a question. Select the shelf; Edit the. One can use MCP to discover & visualize: EVPN service attributes. 18. Edit the information in the fields shown in the table below, as required. It is supported for SAOS 6. Installation. Ciena’s 6500 Packet-Optical Platform integrates three comprehensive networking layers into a single platform to provide customizable service delivery from the metro edge, between data centers, along the backbone core,. The Brocade was providing R_Rdy, Ciena was simply doing pass-through. Step 6: Repeat steps "3" & "4". Here we have configured a Aggregate and this is also in LACP configuration. Steps. a Layer 0 project has been committed in MCP. Hi Ciena SME, we have two DWDM Ciena 6500 with follow configuration: CIENA 6500 Packet Optical Platform running software Releases 12. Supports 2 GbE NNI/UNI Small Form-factor Pluggable (SFP) ports. License Server: License check request timed out. MCP: Policy management for updating license server on network elements. MCP Documentation. Step 4: Trace the Ethernet cable connectivity between shelf ILAN ports of OME6500 and ensure its connected to the right port. @Note: Please make sure that third party network are transparent for GCC1 and GCC2. 6500 T-Series. In a multi-unit configuration you must configure the SNMPv3 profile and SNMP agent on each unit. Step 2: Select Photonic Services from the drop down menu. 2 6500 RA logs can result in 6500 management issues;. . Click Save. 1: If they don't match then continue to step-8. 6500 - planning guide. Table A-3 950 W AC-Input Power Supply Specifications . To reset the switch to factory default, issue the e rase startup-config or write erase command. 13 answers 2. 2 Tb/s. It describes the physical and performance characteristics of the switch, explains how to install a switch, and provides troubleshooting information. Step 3: In the Product. BIT. The terminology used throughout this ST is defined in Table 1-1 and 1-2. For a zone to appear on the BGP Peering page in the web user interface, it must contain a BGP instance and a Traffic Recording. Select Network > Packet infrastructure. Retrieve commissioning scripts summary for a heterogeneous project (6500, Waveserver and Waveserver5) Create the commissioning scripts to configure 6500 eMOTR cards; Enroll a Z-Series network element; View Z-Series inventory; Service provisioning after commissioning; Change a network element connection profile; Commission and. Topology Fundamentals 1-. ) In this animation shelf vies and Specific fix Slot f. Ciena OME 6130 planning guide and hardware description. Hello everyone! New here and trying to configure two 3916s for a demonstration. Number of Views. By continuing, we assume that you consent to receive all cookies on all Ciena websites. Download >> Download Ciena 6500 installation guide Read Online >> Read Online Ciena 6500 installation guide 24 May 2013 Our customers recognise and value the benefit of consistent installation quality across all their sites. Z-Series: Node unresponsive in Planet Operate due to throttling errors and High CPU utilization. 6500 Packet-Optical Platform) Step 4: Select the applicable software release version (ie. The 6500 T-Series leverages the programmability of Ciena’s industry-leading WaveLogic™ Ai coherent technology, enabling operators to maximize fiber capacity and lower the cost ofWhen the expected far-end address (FEA) is set on a 6500 CMD Tx adjacency facility, the Wave-Line Synchronizer application discovers the proper type of transmitter and autoprovisions basic configuration information, such as the transmitter type (for 6500), wavelength, nominal power, transmission mode (for WaveLogic Ai/WaveLogic 5e. You can use the Market REST API to assign a node role on a device for the first three steps in the process and the Network element (constructs) REST API for the fourth and final step in the. Repair Spare parts Download > Schematics Download > Ciena - 6500 (User Manual) User Manual Ciena 6500 - This User Manual - also called owner's manual or operating. In Catalyst 4500/4000 and 6500/6000 series switches which run Cisco IOS. Using the MCP UI, select Network > Services. Completing the configuration of the MCP email service; Enable license server data distribution to network elements; MCP Deployment without GR. Performance monitoring. Step 2: On the upper panel select the L2MOTR card and interface to be used for the service Step 3: On the lower panel select the ETH facility and click on EDIT. But the redundant ARP GNE doesn't work correct in case of ColanX failure (port down). Following the MCP installation, additional configuration of MCP is required based on the network element type(s) to be enrolled and the size of the network being managed. Navigate to System > Technical documentation > APIs > UAC. In this video Chris Brown will show you how the 6500 PTS simplifies customer TDM-to-Ethernet service migration as needed, without having to replace the. This acquisition doubled Ciena's size and increased its customer base to over 1000. 6. I need to know the CLI command to show the running configuration / provisioning data of a 6500 device. Collection of L2 interfaces using yang. BICSI. Tech Touch Video: Live Chat Demo. Create a copy of the logrotate. pdf eziwigting. The 6500-T12/T24 shelves, operate with the robust and feature-rich 6500 software, and support high-density, high-capacity hardware modules. of whatever Brocade sent (primitives, data frames, etc). Navigate to Admin > Recorder Config. Click Save. Step 3: Now from site manager , go to configuration tab ---> Equipment and facility provisioning and. Connecting Site A and Site B for geographical redundancy. Take a database backup from the OME 6500. A configured VLAN interface can serve the same purposes as a physical interface, including serving as the selected administrative interface. ISL port set to 8Gb to Ciena 6500 using standard Brocade shortwave SFP. raciena6500. Table 1. . 0 255. With the ability to provide on-demand connectivity and terabit switching, you can continually stay ahead of unpredictable customer demands with Ciena’s 6500 T-Series Packet Optical Platforms. 0. Network Element should have ISIS (or any other IGP protocol) commissioned and SR Enabled. Ciena uses cookies to ensure that we give you the best experience when visiting our website, as well as to enhance the overall quality of our site. Tailored to address enterprise business requirements at the edge, the 6500-D2 Packet-Optical Platform is a compact 2RU chassis that cost-effectively extends the flexibility and resiliency of the 6500 platform from the core to the access. Performing post-installation configuration. 1b. Automate your network using real-time performance metrics so it can adapt to today’s increasingly dynamic service requirements. Installation Guide. Anyone know why we do not see this option? Other nodes have it. With the help of our Ciena Switch device template, you can easily discover your devices and start managing their configurations. The Cisco has a portchannel configuration in LACP which end's up in a Virtual Switch configuration in the Ciena 6500. The OnePlanner 5. OneControl: All NEs managed by remote M6K server are LOA. 7)Stay ahead of demand—todayand into the future. The 3948 addresses customers’ key needs, supporting routing, Multi-Protocol. I need to know the CLI command to show the running configuration / provisioning data of a 6500 device. For the LSP name and the Packet service name, certain devices support different alphanumeric characters than the MCP defaults. Security Configuration Guide, Cisco IOS XE Fuji 16. I need to know the CLI command to show the running configuration / provisioning data of a 6500 device. When an E-Line’s MPLS mode is set to VPWS, the service can avoid MAC learning and can support internal loopbacks. The MCP system comes preconfigured with the admin user that is assigned all default roles automatically: Application admin: administration of MCP, application-level security, basic visibility of network elements and services. Offers flexible low-power configuration options with redundant power supply (DC) and fan modules. Waveserver Ai Commissioning using the CLI, Quick start for commissioning Waveserver Ai with 323-4002-221 the CLI This quick turn-up sheet can be downloaded via the Waveserver Ai homepage by. Create a NE maintenance profile for the 6500 upgrade. MCP’s elastic scale allows it to support the management and provisioning of modern customer networks. Gauge Threshold Crossing Alert Summary: - This is a. 2 6500 RA logs can result in 6500 management issues. 15000 THz/1528. Proven reliability across the globe. Reduce your transport costs with double the capacity of 100G/200G solutions. For example, enter hostname:8 to connect to display 8, where hostname is the name or IP address of the appliance. Step 1: If there are more than one Minimum Gain alarms in the span, begin troubleshooting upstream of the first amplifier with the alarm. Term Definition TL1. 6500/0002 1 Secured 11 *Note that the CKN key-string is exactly the same that has been configured for the key as hex-string.