Granite River Labs Inc.’s Post

BFD ( Bidirectional Forwarding Detection) is a protocol that is used for quick detection of link failures and monitoring IP connectivity. This improves network performance when redundant paths are available, the device is able to detect link faults quickly and switch traffic to the redundant paths. FRR (Fast Reroute) uses LFA to pre-calculate a backup path and store it in the forwarding table ready to be used whenever the primary route fails. FRR ensure traffic continuity and protection. This labs simulates how to configure BFD and FRR on Huawei Routers. #networkengineer #networkingskills #networkingsolutions https://lnkd.in/dnArgqc2

Open Shortest Path First (OSPF) is a link-state dynamic Interior Gateway Protocol (IGP) commonly used in both Carrier and enterprise networks. Check out this article on how to setup and configure basic OSPF functionality on Huawei routers https://lnkd.in/dPuU3FQx Lab setup and configurations are available for download on the same page. #networkengineer #networkengineering #networkadministration #ospf

What is BFD (Bidirectional Forwarding Detection) in SDWAN? BFD (Bidirectional Forwarding Detection) is a protocol that is able to detect link failures quickly. BFD tunnel statistics can display information about the data plane tunnels, you can easily see if you are sending or receiving packets for a particular IPSEC tunnel between the vEdges. This can help you understand if packets are making it on each end, and isolate connectivity issues between the nodes. BFD in Cisco vEdge/cEdge devices With the IPSEC tunnels between the sites/vEdges/cEdges, BFD detects the failures inside the tunnel and is a part of high availability solution. BFD is enabled by default on all Cisco Viptela vEdge routers. There is no way you can disable it.

Below are some best practices when designing and implementing IS-IS protocol on the IPRAN network: 1. Use different IS-IS processes for access and aggregation rings. 2. Design your IS-IS costs properly. 3. Always use route policies when importing routes between access and aggregation IS-IS processes. #isp #networkingskills #networking #networkinfrastructure #networkdesign This lab simulates IS-IS design and implementation on Huawei routers. https://lnkd.in/deUfjUPG

What are the main functions of MME 🤔 ? 1. The MME is responsible for the establishment, modification, and release of bearers, which represent communication channels between the UE and the Evolved Packet Core (EPC). 2.  Initiates and terminates user sessions by managing the setup and release of connections between the UE and the EPC. 3.  Handles the UE's registration and updates its tracking area information as the UE moves across different tracking areas. 4.  Manages the UE's location updates, ensuring that the network is aware of the UE's current location. 5.  Performs authentication procedures with the UE and facilitates the generation of security keys for secure communication. 6.  Initiates the establishment of secure communication between the UE and the network by activating security mechanisms. 7.  Optimizes signaling by reducing the frequency of tracking area updates when the UE is in idle mode, enhancing efficiency. 8.  Facilitates handovers between LTE and legacy 2G/3G networks to ensure seamless mobility for the UE. 9.  Enforces policy rules related to QoS, charging, and traffic management to meet service-level agreements and ensure efficient resource utilization. 10.  Gathers information related to charging and usage for billing purposes. 11.  Supports the attachment and provision of services for UEs making emergency calls. 12.  Manages the update of routing area information when the UE moves between different routing areas. 13.  Supports lawful interception by providing the necessary interfaces and procedures for authorized entities to intercept communications. 14.  Manages the exchange of NAS messages between the UE and the MME, dealing with registration, location updating, and other signaling procedures. #LTE #4GTechnology #MME #wirelesscommunications #Networking #Telecommunications

A Pseudo Wire Emulation Edge to Edge(PWE3) is a layer 2 VPN used to emulate point to point connection. PWE3 uses LDP as the signaling protocol and transparently transmits Layer 2 data packets from CE to CE in the Packet Switched network. This lab simulates how to deploy a Pseudo Wire on Huawei Routers in the same IGP domain. Mohsin Jahangir https://lnkd.in/dybfykna

🔀 Essential Dynamic Routing Protocols used in Network Engineering 🔀 Open Shortest Path First (OSPF) 🌐 Enhanced Interior Gateway Routing Protocol (EIGRP) 🔄 Routing Protocol for Low-Power and Lossy Networks (RPL) 🔋 Border Gateway Protocol (BGP) 🌐 Intermediate System to Intermediate System (IS-IS) ↔️ Routing Information Protocol (RIP) 🔄 #DynamicRouting #OSPF #EIGRP #RPL #BGP #ISIS #NetworkEngineering #RoutingProtocols #TechBasics 🛣️

MPLS enabled VPNs are highly scalable, why? I am also trying to understand this concept more.Consider,If a customer has already "n" number of sites across the world.And they also wanted to connect each other via intranet communication.ISP can provide this connection to customer without having any burden by taking the control of their control plane right?Suppose a new requirement comes with two additional sites to be added by customer,what ISP will do ? They will simply change the routing table of the connected PE router attched to new site right? And later MP BGP can help to distribute all of the control plane informations to required PE routers right? The good thing is that the mpls wan core doesn't want to know all of the customer vpn related things which is not at all bothered by core routers having some underlay igp or mpls advance level technologies to transport the packets betwen ISP nodes with low latency in forwarding plane. #basic #unitedcore #unni #bgp

Check out the full article with examples on how to troubleshoot OSPF adjacencies: https://lnkd.in/d7cB5mrH When you are configuring OSPF in your network, these are some of the key issues you should check if the neighbor/adjacency fails to come up. 1. Matching Area ID. The peering will not come up when you have a mismatch in area IDs on two routers. 2. Matching OSPF timers. The Hello and Dead timers must match for the peering to come up. 3. Matching Subnet: Interface subnets must be the same on both interfaces negotiating OSPF adjacency. 4. Matching MTU. The adjacency will be stuck in Exstart/Exchange state with a mismatch in MTU values. 5. Matching Authentication: The authentication parameters should match for the adjacency to come up. 6. Matching network type flags. Incompatible network types won't form adjacencies. 7. OSPF Area types. Configure the same area type on routers in the same area. 8. Conflicting Router IDs. Configure unique router IDs on every router in your network. #networkengineer #ospf #networkadministration #networkadministration