500-470 Exam Dumps - Cisco Enterprise Networks SDA, SDWAN and ISE Exam for System Engineers

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 The default interval for BFD packets is 1 second. BFD uses Hello packets to detect the liveness and faults on a connection. BFD Hello Interval packet is sent at the default interval of 1000 milliseconds on all connections1. This command can be used to change the hello interval for a transport color. The interval for transmitting and receiving BFD packets can also be configured on the interface level or the BFD session level, depending on the device and the protocol234. The BFD detection time is calculated as the product of the local detection multiplier and the agreed remote transmission interval. The lower the BFD detection time, the faster the BFD session can detect a fault. However, a lower BFD detection time also consumes more system resources and bandwidth. Therefore, the BFD detection time should be configured according to the network situation and performance requirements. References:

• : Bidirectional Forwarding Detection - Cisco
• : Configuring the BFD Detection Time - CloudEngine 16800 … - Huawei
• : Cisco IOS XE Catalyst SD-WAN Qualified Command Reference
• : bfd min-echo-receive-interval - Aruba

The current DNA-C 1.1 release supports the following wireless product families:

• WLC 3504: This is a wireless LAN controller that provides centralized control, management, and troubleshooting for small to medium-sized enterprises and branch offices. It supports up to 150 access points and 3,000 clients, and offers high availability, scalability, and security features. It is compatible with Cisco DNA Center 1.1 and later releases1.
• WLC 8540: This is a wireless LAN controller that provides centralized control, management, and troubleshooting for large enterprises and service providers. It supports up to 6,000 access points and 64,000 clients, and offers high performance, reliability, and flexibility. It is compatible with Cisco DNA Center 1.1 and later releases2.
• AP 3800: This is an access point that delivers high-performance wireless connectivity for indoor and outdoor environments. It supports 802.11ac Wave 2 technology, multiuser multiple-input multiple-output (MU-MIMO), flexible radio assignment, and modular design. It is compatible with Cisco DNA Center 1.1 and later releases3.

References:

 1: [Cisco Wireless LAN Controller 3504 Data Sheet - Cisco] : 2: [Cisco 8540 Wireless Controller Data Sheet - Cisco] : 3: [Cisco Aironet 3800 Series Access Points Data Sheet - Cisco]