151 Courses in Manchester

Introducing Therapy for Retroactive Jealousy Package: Overcoming Intrusive Thoughts and Fostering Emotional Well-being Are you struggling with retroactive jealousy, finding it difficult to cope with intrusive thoughts and emotions related to your partner’s past relationships? Miss Date Doctor’s Therapy for Retroactive Jealousy Package offers you expert support and guidance to overcome jealousy and foster emotional well-being in your current relationship. Retroactive jealousy is an emotional challenge that can cause distress and strain in relationships. Our experienced therapists are dedicated to helping you understand and manage these feelings, allowing you to build a healthier and more trusting connection with your partner. Here’s how the Therapy for Retroactive Jealousy Package can support you: Understanding Retroactive Jealousy: Our therapists will help you gain insights into the root causes of retroactive jealousy and its impact on your emotional well-being. Coping Strategies: We’ll equip you with effective coping strategies to manage intrusive thoughts and emotions, helping you reduce anxiety and distress. Building Self-Confidence: Therapy for retroactive jealousy can assist in building self-confidence and self-assurance, allowing you to feel more secure in your relationship. Effective Communication: We’ll guide you in improving communication with your partner about your feelings, fostering understanding and emotional connection. Developing Trust: Therapy will focus on rebuilding trust in your relationship, addressing any underlying issues that may contribute to feelings of jealousy. Letting Go of the Past: Our therapists will assist you in processing and letting go of obsessive thoughts related to your partner’s past. Positive Mindset: We’ll work towards cultivating a positive mindset, encouraging you to focus on the present and future rather than dwelling on the past. Embracing Emotional Intimacy: Therapy for retroactive jealousy can help you and your partner cultivate emotional intimacy and strengthen your bond. The Therapy for Retroactive Jealousy Package at Miss Date Doctor is designed to empower you to overcome jealousy and create a more fulfilling and trusting relationship. Our caring therapists provide a safe and supportive space to explore your feelings and concerns, allowing you to work towards emotional healing and a stronger connection with your partner. Invest in your emotional well-being and take the first step towards overcoming retroactive jealousy with the Therapy for Retroactive Jealousy Package. Embrace the opportunity to foster a more secure and loving relationship, free from the burden of intrusive thoughts and jealousy. Let our experienced therapists guide you towards a brighter and more emotionally fulfilling future. 3 x 1 hour sessions https://relationshipsmdd.com/product/therapy-for-retroactive-jealousy/

In this Training we look at how to: Create a culture of Belonging from a team members very first day. How to create a diverse environment to help everybody connect. How to keep everybody connected when team members change.

Introducing Relationship Counselling London Package: Strengthening Bonds and Nurturing Lasting Connections Are you and your partner experiencing challenges in your relationship and seeking professional support to improve communication and enhance intimacy? Miss Date Doctor’s Relationship Counselling London Package offers you expert guidance to navigate difficulties, strengthen your bond, and foster a healthier, more fulfilling partnership. Relationship counselling is a valuable opportunity for couples to address underlying issues, improve communication, and gain insights into each other’s needs and perspectives. Our experienced relationship counsellors in London are committed to helping you and your partner build a stronger foundation for a lasting and loving relationship. Here’s how the Relationship Counselling London Package can support you: Effective Communication: Our counsellors will help you and your partner improve communication skills, fostering a deeper understanding of each other’s feelings and needs. Conflict Resolution: Relationship counselling addresses conflict resolution strategies, helping you navigate disagreements constructively and prevent recurring patterns of conflict. Rebuilding Trust: If trust has been compromised, our counsellors will guide you in rebuilding trust and creating a more secure emotional bond. Intimacy and Emotional Connection: We’ll explore ways to enhance emotional intimacy and create a more fulfilling emotional connection between you and your partner. Identifying Patterns: Relationship counselling helps identify negative patterns of behaviour or communication that may be contributing to relationship challenges. Exploring Relationship Goals: Our counsellors will help you and your partner explore your shared goals and aspirations, ensuring that you are aligned in your vision for the future. Navigating Transitions: Relationship counselling can assist you in navigating major life transitions together, providing support during times of change. Tools for Sustaining a Healthy Relationship: We’ll equip you with tools and techniques to sustain a healthy and loving relationship beyond counselling. The Relationship Counselling London Package at Miss Date Doctor is tailored to meet the unique needs of your relationship. Our skilled counsellors provide a safe and supportive space for open and honest dialogue, allowing you and your partner to work towards a more fulfilling and harmonious partnership. Invest in the well-being of your relationship and take the first step towards a healthier and more loving connection with the Relationship Counselling London Package. Embrace the opportunity to strengthen your bond, improve communication, and create a lasting and satisfying relationship. Let our experienced counsellors guide you and your partner towards a brighter future filled with love, understanding, and mutual support. 3 x1 hour https://relationshipsmdd.com/product/relationship-counselling-london-package/

Voice over LTE training course description This course provides a basic understanding of the 3G LTE Air Interface, SAE, as well as Voice over LTE options and LTE Advanced features. Investigating the standards for the EPS , formulated by the 3GPP standards body, the course will set out to examine and explain the 4G environment from user equipment to border gateway and beyond. This course will ensure the delegate has a grasp of all aspects of the current global deployments, the next steps in upgrades and the promise of things to come. What will you learn Describe the complete EPC architecture. Explain the use of QoS within the air interface & core network. Explore the features of LTE advanced. Describe the various methods of supporting voice services with 3G LTE. Describe IMS structure and control entities. Explain an IMS session. Voice over LTE training course details Who will benefit: Any engineers who are assisting in the deployment of voice services within their LTE networks. Prerequisites: Intro to Data comms & networking Telecommunications Introduction Duration 3 days Voice over LTE training course contents 3GPP standards body Release 8 - Release 12, Supported and expected features. The EPC revisited EPC revisited 3G LTE & EPC Architecture, NB, MME, SGW, PDNGW, PCRF, Interworking capabilities, Protocol stack explored, NAS signalling, Default EPS bearer, Slot allocation algorithms, Scheduling algorithms, Quality of Service requirements, Dedicated EPS bearers. VoLTE deployment strategies Common networks everywhere, GSM/WCDMA view, CDMA view. VoLTE system architecture LTE radio, LTE Radio background, LTE radio architecture, Evolved packet core, EPC entities & functions, EPS mobility management, MS entities, Home subscriber server, Policy & charging rules function. VoLTE functionality Radio functionality, Bearers & schedulers, Mobility, Circuit switched fall back handover, Mobility from 2G/3G back to LTE, Power Saving Features, Positioning services, UE radio access capabilities for VoLTE users. EPC functionalities, LTE subscriber identification, PDN connectivity establishment, EPS dedicated bearer setup, IMS identification, IP multimedia identification module, Public user identity, Private user identity, Relationship between public & private identity, identification of users device, identification of network entities, identification of services, identification without ISIM. IMS service provisioning, Enforcement of allowed services, Service triggering information, Selection of the AS, AS behaviour, Service provisioning in action. VoLTE end-to-end & signalling VoLTE subscription & device configuration. EPS attach for CSFB/IMS VoIP & default bearer. IMS registration, Constructing the REGISTER request, From UE to P-CSCF, From P-CSCF to I-CSCF, From I-CSCF to S-CSCF, S-CSCF challenges the UE, UE's response to the challenge, Registration at the S-CSCF, The 200 OK response, Third-party registration to application servers, Subscription to registration event package, Re-registration & re-authentication, De-registration, Related standards. IMS VoIP session, Constructing the INVITE request, Routing, Media negotiation, Media resource reservation & policy control, Charging, Session release. Voice continuity, PS - PS intersystem handover, Single radio voice call continuity. IMS emergency session, PDN Connection setup for emergency session, Emergency registration, Emergency session. CS fallback for EPS call case, Architecture of CS fallback in EPS, Description of SGs interface, Idle mode signalling reduction, Idle mode vs active mode, CS fallback attachment, Mobile originating call using CSFB, Mobile terminating call using CSFB, Call unrelated CSFB procedures, Mobile terminating roaming retry & forwarding. VoLTE Messaging, Native IMS messages, SMS interworking, Multimedia messaging service. Unstructured supplementary services data simulation in IMS. IMS services VoLTE radio performance Coverage, Latency, Capacity. LTE advanced features Carrier aggregation, Coordinated mMulti-point Operation (CoMP), ICIC & eICIC, Relay node deployment & donor eNBs, Improved cell edge coverage, Reduced control plane latency, Heterogeneous networks, HeNB, security gateways, HeNB gateways.

Improve your relationship with dedicated couple counselling in London. Our therapists offer tailored sessions to address specific issues, enhance communication, and foster mutual understanding between partners. Whether you're facing daily conflicts or significant relationship challenges, our supportive counselling can help you rebuild and strengthen your connection. Key areas: relationship therapy, couples counselling, partnership counselling, relationship support, therapy for couples, couples guidance, relationship enhancement. 3 x 1 hour sessions 

Introducing Therapy for Relationship Issues Package: Strengthening Bonds and Nurturing Healthy Connections Are you and your partner facing challenges in your relationship and seeking professional support to improve communication, resolve conflicts, and strengthen your bond? Miss Date Doctor’s Therapy for Relationship Issues Package offers you expert guidance to navigate difficulties, foster intimacy, and build a healthier, more fulfilling partnership. Relationships can encounter various obstacles that impact communication, trust, and emotional connection. Our experienced therapists specialize in working with couples and are dedicated to helping you and your partner overcome challenges and cultivate a more loving and harmonious relationship. Here’s how the Therapy for Relationship Issues Package can support you: Effective Communication: Our therapists will help you and your partner improve communication skills, fostering a deeper understanding of each other’s needs and emotions. Conflict Resolution: Relationship therapy addresses conflict resolution strategies, assisting you in navigating disagreements constructively and preventing recurring conflicts. Rebuilding Trust: If trust has been compromised, our therapists will guide you in rebuilding trust and creating a more secure emotional bond. Emotional Intimacy: We’ll explore ways to enhance emotional intimacy and create a more fulfilling emotional connection between you and your partner. Addressing Past Issues: Relationship therapy can address unresolved issues from the past that may be affecting your present relationship dynamics. Identifying Patterns: Our therapists will help you and your partner identify negative patterns of behaviour or communication, fostering healthier interactions. Shared Goals: We’ll assist you in exploring and aligning your shared goals and aspirations, ensuring that you are on the same page about your future together. Renewing Affection: Therapy for relationship issues can help rekindle affection and emotional closeness between you and your partner. The Therapy for Relationship Issues Package at Miss Date Doctor is designed to empower you and your partner to build a stronger foundation for your relationship. Our skilled therapists provide a safe and supportive space for open and honest dialogue, allowing you to work towards a more fulfilling and harmonious partnership. Invest in the well-being of your relationship and take the first step towards a healthier and more loving connection with the Therapy for Relationship Issues Package. Embrace the opportunity to strengthen your bond, improve communication, and create a lasting and satisfying relationship. Let our experienced therapists guide you and your partner towards a brighter future filled with love, understanding, and mutual support. 3 x 1 hour sessions https://relationshipsmdd.com/product/therapy-for-relationship-issues-package/

DWDM training course description A concise overview of Wave Division Multiplexing (WDM) with both Coarse Wave Division Multiplexing (CWDM) and Dense Wave Division Multiplexing (DWDM) being covered. The course starts with a review of the relevant elements of fibre transmission and multiplexing before then studying WDM components and architectures. Reliability, resilience and management are then followed by WDM services and futures. What will you learn Explain the benefits of WDM. Describe Dispersion and four way mixing. Describe the different WDM equipment components. Describe different WDM architectures. Explain How DWDM works. DWDM training course details Who will benefit: Anyone working with CWDM/DWDM. Prerequisites: Telecommunications Introduction Duration 2 days DWDM training course contents Fibre communications review Optical transmission, Fibre characteristics, Fibre component parts. Multi Mode Fibre (MMF). Single Mode Fibre (SMF). Fibre connections. Lasers. Attenuations, dispersion, optical signal noise ratios (OSNR) and their effects. Channel Spacing and Signal Direction. Limiting factors to single wavelength. WDM overview Multiplexing, TDM, WDM benefits. WDM standards. CWDM vs. DWDM. Four Wave Mixing (FWM). Impact and countermeasures to FWM on WDM. CWDM ITU G.694.2, channels, channel spacing. DWDM ITU G.694.1, channels, channel spacing. WDM Equipment Components Equipment components and building blocks. Optical Terminal Multiplexers (OTM). Optical Add/Drop Multiplexers (OADM). Adding versus dropping. Optical Amplifiers. Erbium Doped Fibre Amplifiers (EDFA). Transponders and Combiners. WDM/DWDM Hubs. Optical and Electrical Cross Connects (OXCs/DXCs). Types of Cross Connects (Transparent/Opaque). Advantages and disadvantages of various Optical cross connects. WDM Architectures WDM network sections. Point-to-Point, Optical switches, mesh, ring and star topology. Example of combined WDM and other technology network. Wavelength converting transponders, 1R, 2R, 3R. Protection for WDM Sub 50ms failover. Equipment protection. Card protection. Y cable, Splitter protection. Far end laser control. Line protection. OMSP 1+1, OMSP 1:1, OMSP 1: N. Self healing optical ring. Sub Network Connection Protection (SNCP). Automatically Switched Optical Networks (ASON). WDM Management Options In band management. Out of band management. The Optical Supervisory Channel (OSC). OSC capabilities. WDM services WDM Access. Bit rates, Transparent Networks. Modulation, DQPSK. SDH over WDM. Migrating from SDH to DWDM. Ethernet over WDM, IP over WDM. Optical Transport Networks G.709, 'digital wrapper', Optical Channel Payload Unit (OPU), Optical Channel Transport Unit ( OTU), Optical Channel Data Unit (ODU). OTU1, OTU2, OTU3, OTU4. WDM Futures All optical amplification, Raman amplification, distributed, lumped. Bit rates. Solitons. Coherent technologies.

Network fundamentals training course description An intensive hands on IP foundation leading to LINX Accredited Internet Technician stage 1. The course focuses on all parts of TCP/IP including layers 4 to 7 on end stations as well as layer 3 on routers. The TCP/IP protocols are also studied to enable delegates to be able to troubleshoot TCP/IP using Wireshark. Hands on sessions are used to reinforce the theory rather than teach specific manufacturer equipment. A multiple choice exam, leading to the LAIT I certification, is available after the course. The exam consists of 40 questions and lasts 1.5 hours. What will you learn Use ping, traceroute and other tools to diagnose faults on a network. Configure IP on PCs and routers. Plan IP addresses and subnets. Analyse IP and TCP packets using an analyser. Troubleshoot TCP/IP. Network fundamentals training course details Who will benefit: Network engineers. Prerequisites: None Duration 5 days Network fundamentals training course contents What is TCP/IP? TCP and IP are protocols, 7 layer model, network layers, hardware/software layers, internetworking, protocols, What is IP? What is TCP? The internet, The IAB, RFCs. Ping and Wireshark Host configuration, IP addresses, subnet masks, default gateways, ping. Hands on Base configuration. Testing with ping. Analysing packets with Wireshark. Switches and Wireshark Switches versus hubs, layer 2 forwarding table, flooding, broadcasts. Hands on Building a switched based network. Configuring network devices Configuration options, console port, putty, telnet. Hands on Configuring switches, telnet. IP IP packet format, protocol field, TTL, DiffServ, fragments, ICMP. Hands on IP packet analysis. IP addressing 32 bits, dotted decimal, rules, networks, role of subnet masks, simple subnetting, prefix notation. Broadcasts, special use addresses. Hands on Planning and implementing addressing. IP and the lower layers ARP, media not supporting ARP. Hands on ARP. Routing What are routers? What routers do, default gateways, routing and addressing, routing tables, ways to update routing tables. Hands on Building a routed network, traceroute. Routing protocols IGPs and EGPs, RIP, RIPv2, Why not to use RIP, OSPF, OSPF metrics, convergence, distance vector protocols, link state protocols. Hands on OSPF, analysing routing tables, loopbacks. Network simulators Network simulators, EVE-NG, GNS3, CML. Hands on Using EVE-NG. Subnetting Subnetting to the bit level, ranges, how prefixes are used. Hands on Subnetting. VLANS and IP addressing What are VLANs, tagging, 802.1Q, Inter VLAN routing. Hands on Inter VLAN routing. TCP and UDP Layer 4, port numbers, client ports, broadcasts multicasts and layer 4, UDP header, TCP header, connections, ACK, sliding windows, options, connection states. Sockets. Hands on Analysing TCP packets. IPv4 address configuration Private addresses, NAT, NAPT, dynamic addressing, DHCP, link local addresses. Hands on DHCP, NAT. IPv6 What is IPv6, 128 bit addresses, address formats, IPv6 address allocation, header format, migration, dual stack, tunnelling, NAT64, DNS64. Hands on IPv6 setup troubleshooting. IPv6 address configuration Static addressing, EUI-64 addresses, IPv6 address order, SLAAC, DHCPv6. Hands on SLAAC. Applications Clients, servers, HTTP, Email, resource sharing, VoIP, video, terminal emulation, remote desktop. Network management and SNMP. Hands on Servers, TFTP, VoIP packet analysis. DNS Names and addresses, hosts file, how DNS works. FQDNs, DNS client configuration. Hands on Troubleshooting DNS. Security Firewalls, firewall architectures, DMZ, how firewalls work, proxy servers, filtering, ACLs, IDS, VPNs, authentication, encryption, tunnels, secure protocols. Hands on Firewalls, SSH Troubleshooting Methods, tools. Using the 7 layer model. Troubleshooting toolkits. Hands on Fixing the network.

LINX 1 training course description An intensive hands on IP foundation leading to LINX Accredited Internet Technician stage 1. The course focuses on all parts of TCP/IP including layers 4 to 7 on end stations as well as layer 3 on routers. The TCP/IP protocols are also studied to enable delegates to be able to troubleshoot TCP/IP using Wireshark. Hands on sessions are used to reinforce the theory rather than teach specific manufacturer equipment. A multiple choice exam, leading to the LAIT I certification, is available after the course. The exam consists of 40 questions and lasts 1.5 hours. What will you learn Use ping, traceroute and other tools to diagnose faults on a network. Configure IP on PCs and routers. Plan IP addresses and subnets. Analyse IP and TCP packets using an analyser. Troubleshoot TCP/IP. LINX 1 training course details Who will benefit: Network engineers. Prerequisites: None. Duration 5 days LINX 1 training course contents What is TCP/IP? TCP and IP are protocols, 7 layer model, network layers, hardware/software layers, internetworking, protocols, What is IP? What is TCP? The internet, The IAB, RFCs. Ping and Wireshark Host configuration, IP addresses, subnet masks, default gateways, ping. Hands on Base configuration. Testing with ping. Analysing packets with Wireshark. Switches and Wireshark Switches versus hubs, layer 2 forwarding table, flooding, broadcasts. Hands on Building a switched based network. Configuring network devices Configuration options, console port, putty, telnet. Hands on Configuring switches, telnet. IP IP packet format, protocol field, TTL, DiffServ, fragments, ICMP. Hands on IP packet analysis. IP addressing 32 bits, dotted decimal, rules, networks, role of subnet masks, simple subnetting, prefix notation. Broadcasts, special use addresses. Hands on Planning and implementing addressing. IP and the lower layers ARP, media not supporting ARP. Hands on ARP. Routing What are routers? What routers do, default gateways, routing and addressing, routing tables, ways to update routing tables. Hands on Building a routed network, traceroute. Routing protocols IGPs and EGPs, RIP, RIPv2, Why not to use RIP, OSPF, OSPF metrics, convergence, distance vector protocols, link state protocols. Hands on OSPF, analysing routing tables, loopbacks. Network simulators Network simulators, EVE-NG, GNS3, CML. Hands on Using EVE-NG. Subnetting Subnetting to the bit level, ranges, how prefixes are used. Hands on Subnetting. VLANS and IP addressing What are VLANs, tagging, 802.1Q, Inter VLAN routing. Hands on Inter VLAN routing. TCP and UDP Layer 4, port numbers, client ports, broadcasts multicasts and layer 4, UDP header, TCP header, connections, ACK, sliding windows, options, connection states. Sockets. Hands on Analysing TCP packets. IPv4 address configuration Private addresses, NAT, NAPT, dynamic addressing, DHCP, link local addresses. Hands on DHCP, NAT. IPv6 What is IPv6, 128 bit addresses, address formats, IPv6 address allocation, header format, migration, dual stack, tunnelling, NAT64, DNS64. Hands on IPv6 setup troubleshooting. IPv6 address configuration Static addressing, EUI-64 addresses, IPv6 address order, SLAAC, DHCPv6. Hands on SLAAC. Applications Clients, servers, HTTP, Email, resource sharing, VoIP, video, terminal emulation, remote desktop. Network management and SNMP. Hands on Servers, TFTP, VoIP packet analysis. DNS Names and addresses, hosts file, how DNS works. FQDNs, DNS client configuration. Hands on Troubleshooting DNS. Security Firewalls, firewall architectures, DMZ, how firewalls work, proxy servers, filtering, ACLs, IDS, VPNs, authentication, encryption, tunnels, secure protocols. Hands on Firewalls, SSH Troubleshooting Methods, tools. Using the 7 layer model. Troubleshooting toolkits. Hands on Fixing the network.

TCP/IP training course description An intensive hands on IP foundation leading to LINX Accredited Internet Technician stage 1. The course focuses on all parts of TCP/IP including layers 4 to 7 on end stations as well as layer 3 on routers. The TCP/IP protocols are also studied to enable delegates to be able to troubleshoot TCP/IP using Wireshark. Hands on sessions are used to reinforce the theory rather than teach specific manufacturer equipment. A multiple choice exam, leading to the LAIT I certification, is available after the course. The exam consists of 40 questions and lasts 1.5 hours. What will you learn Use ping, traceroute and other tools to diagnose faults on a network. Configure IP on PCs and routers. Plan IP addresses and subnets. Analyse IP and TCP packets using an analyser. Troubleshoot TCP/IP. TCP/IP training course details Who will benefit: Network engineers. Prerequisites: None Duration 5 days TCP/IP training course contents What is TCP/IP? TCP and IP are protocols, 7 layer model, network layers, hardware/software layers, internetworking, protocols, What is IP? What is TCP? The internet, The IAB, RFCs. Ping and Wireshark Host configuration, IP addresses, subnet masks, default gateways, ping. Hands on Base configuration. Testing with ping. Analysing packets with Wireshark. Switches and Wireshark Switches versus hubs, layer 2 forwarding table, flooding, broadcasts. Hands on Building a switched based network. Configuring network devices Configuration options, console port, putty, telnet. Hands on Configuring switches, telnet. IP IP packet format, protocol field, TTL, DiffServ, fragments, ICMP. Hands on IP packet analysis. IP addressing 32 bits, dotted decimal, rules, networks, role of subnet masks, simple subnetting, prefix notation. Broadcasts, special use addresses. Hands on Planning and implementing addressing. IP and the lower layers ARP, media not supporting ARP. Hands on ARP. Routing What are routers? What routers do, default gateways, routing and addressing, routing tables, ways to update routing tables. Hands on Building a routed network, traceroute. Routing protocols IGPs and EGPs, RIP, RIPv2, Why not to use RIP, OSPF, OSPF metrics, convergence, distance vector protocols, link state protocols. Hands on OSPF, analysing routing tables, loopbacks. Network simulators Network simulators, EVE-NG, GNS3, CML. Hands on Using EVE-NG. Subnetting Subnetting to the bit level, ranges, how prefixes are used. Hands on Subnetting. VLANS and IP addressing What are VLANs, tagging, 802.1Q, Inter VLAN routing. Hands on Inter VLAN routing. TCP and UDP Layer 4, port numbers, client ports, broadcasts multicasts and layer 4, UDP header, TCP header, connections, ACK, sliding windows, options, connection states. Sockets. Hands on Analysing TCP packets. IPv4 address configuration Private addresses, NAT, NAPT, dynamic addressing, DHCP, link local addresses. Hands on DHCP, NAT. IPv6 What is IPv6, 128 bit addresses, address formats, IPv6 address allocation, header format, migration, dual stack, tunnelling, NAT64, DNS64. Hands on IPv6 setup troubleshooting. IPv6 address configuration Static addressing, EUI-64 addresses, IPv6 address order, SLAAC, DHCPv6. Hands on SLAAC. Applications Clients, servers, HTTP, Email, resource sharing, VoIP, video, terminal emulation, remote desktop. Network management and SNMP. Hands on Servers, TFTP, VoIP packet analysis. DNS Names and addresses, hosts file, how DNS works. FQDNs, DNS client configuration. Hands on Troubleshooting DNS. Security Firewalls, firewall architectures, DMZ, how firewalls work, proxy servers, filtering, ACLs, IDS, VPNs, authentication, encryption, tunnels, secure protocols. Hands on Firewalls, SSH Troubleshooting Methods, tools. Using the 7 layer model. Troubleshooting toolkits. Hands on Fixing the network.