Introduction to Aruba NetEdit NetEdit provides coordinated switch configuration, monitoring and troubleshooting. It provides intelligent, error-free configuration with validation for consistency and compliance, and the automation of multi-device change workflows without the overhead of programming. NetEdit works closely with the embedded analytics in each AOS-CX switch. This gives you intelligent assistance and continuous validation, analytics and troubleshooting. NetEDit is a…
Category: Technology
13. Secure Management and Maintenance
Management VRF (Virtual Routing and Forwarding) VRF (Virtual Routing and Forwarding) creates separate virtual routers inside a physical router, with separate routing tables. AOS-CX devices have a default VRF for the data plane and a separate management VRF for the management port to handle OOBM traffic. Out-of-Band Management Port (OOBM) This port is used exclusively to monitor and manage the…
12. Stacking
Stacking Technologies Operational Planes A network device is logically composed of three operational planes, and each plane performs specific tasks. 1. Data Plane This plane sends and receives frames using specialised hardware called Application Specific Integrated Circuits (ASIC). 2. Control Plane This plane determines what to do with the data that has been received. These decisions include things like routing,…
Aruba Certified Switching Associate – Study Notes
These are my study notes from the book: “Aruba Certified Switching Associate – Official Certification Study Guide (Exam HPE6-A72)” 4. VLANS 5. Spanning-Tree Protocol 6. Link Aggregation 7. IPv4 Routing Part 1 9. IP Routing Part 2 10 . IP Routing Part 3 11. OSPFv2 Single Area 12. Stacking 13. Secure Management and Maintenance…
11. OSPFv2 Single Area
OPFv2 Router ID and Messaging OSPFv2 is the most popular option for corporations to route traffic within their networks. OSPF Introduction OSPF does not use UDP or TCP. OSPF advertisements are placed directly in an IP packet, therefore it does not have a TCP or UDP port number. It has IP protocol number 89. NOTE: The IP protocol number is…
10 . IP Routing Part 3
Route Types and Administrative Distance Connected and Local Entries Connected: the subnet is physically connected to the switch and there is no need for a next hop device Local: the subnet is configured inside the switch. This could be a loopback interface or Switch Virtual Interface (SVI). Static Routes You need a static route when the destination network is not…
9. IP Routing Part 2
Subnetting IPv4 Address Classes The IPv4 address space is divided into 5 classes (A to E) each of which is designed for a particular purpose. Class A: the first octet is between 0 and 127. The first octet (8 bits) is reserved for the network ID which means 3 octets (24 bits) are available for hosts on the network Class…
8. VRRP (Virtual Router Redundancy Protocol)
An endpoint may only have one DG (Default Gateway), and a single DG means a single point of failure. In this example, if Core-1 is the DG for PC-1 and Core-1 fails, PC-1 and any other endpoints using Core-1 as the DG will be isolated. You could add another DG for redundancy, but you would have to somehow change the…
7. IPv4 Routing Part 1
Routing IP routing connects VLANs together and routes packets between them. Routing devices use Layer 3 packet analysis to forward L3 packets. Layer 2 switches forward frames among devices in the same LAN by processing Layer 2 headers. This is based on destination MAC addresses. Layer 3 devices move packets between LANs based on Layer 3 IP addresses. Routing Layer…
6. Link Aggregation
Link Aggregation Without link aggregation, if you used two links to connect two switches together, the two links would create a loop and STP would automatically block one of the ports. Link Aggregation fixes this issue by bundling multiple physical interfaces into a single logical interface. Since STP sees this as a single interface there is no blocking. …