A network administrator at a financial services firm is configuring OSPF between two routers, R1 and R2. After configuration, the OSPF adjacency fails to establish and remains stuck in the ExStart state. A packet capture reveals that R1 and R2 are successfully exchanging Hello packets and agree on all parameters, but they continuously retransmit Database Description (DD) packets to each other. What is the most likely cause of this issue?
A network engineer is designing a BGP solution for an enterprise with two connections to the same ISP. The goal is to use one connection as the primary path for all outbound traffic and the other as a backup. Which BGP attribute should be configured on the enterprise edge routers to influence the ISP's routing decision for inbound traffic, ensuring the ISP prefers one link over the other?
A large-scale enterprise network uses IS-IS as its IGP. The network is divided into multiple Level-1 areas connected to a Level-2 backbone. To improve scalability, the lead architect wants to prevent Level-1 routers from receiving specific Level-2 routes while still allowing them to reach those destinations via a default route. Which IS-IS feature should be implemented on the Level-1-2 border routers?
An administrator is implementing Policy-Based Routing (PBR) on a Huawei router to redirect HTTP traffic from a specific subnet (192.168.10.0/24) to a dedicated proxy server (10.10.10.1). Which of the following components are required for this configuration? (Select THREE)
True or False: In a multi-area OSPF network, a Type 4 Summary-ASBR LSA is generated by an Area Border Router (ABR) to advertise the location of an Autonomous System Boundary Router (ASBR) to other areas.
**Case Study: Global Logistics Inc. Network Redesign** Global Logistics Inc. is redesigning its core network, which uses BGP for external connectivity and OSPF as the IGP. The company has a large number of internal routes that are currently being redistributed into BGP. This practice has led to instability in the BGP routing table, as every internal OSPF flap (a link going down or up) causes BGP updates to be sent to their upstream ISPs. This instability is causing performance issues and has violated their SLA with the providers. The network architecture team has been tasked with resolving this instability. The primary requirement is to advertise a stable summary of the company's internal address space to the internet while preventing IGP instability from affecting the external BGP sessions. The solution must ensure that internal subnets remain reachable from the internet via the advertised summary route. Any solution that requires manual intervention for every internal network change is unacceptable. The current configuration on the edge routers involves a `redistribute ospf` command under the BGP process, which is the source of the problem. The company's allocated public IP space is 203.0.113.0/24, which is currently broken down into multiple /26 and /27 subnets used internally and advertised via OSPF. Which approach best meets the requirements to stabilize BGP while maintaining reachability?
A network administrator is securing the access layer of a campus network using Huawei switches. To prevent common attacks like DHCP starvation and rogue DHCP servers, DHCP Snooping has been enabled. Which additional feature must be configured to validate ARP packets against the DHCP Snooping binding database, preventing ARP spoofing attacks?
To ensure rapid failure detection for a critical link carrying BGP traffic between two routers, an engineer configures BFD. The desired detection time is less than one second. Which BFD parameters are most directly configured to achieve this goal?
A university is deploying a large-scale campus WLAN using Huawei's Fit AP architecture. The network consists of one Access Controller (AC) and hundreds of Access Points (APs). How do the APs discover the location of the AC to establish a CAPWAP tunnel? (Select TWO methods)
An engineer is configuring MSTP on a set of interconnected Huawei switches. To ensure that switches are part of the same MSTP region, which three parameters must match exactly on all switches within that region?