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Cisco Nexus 9000 series

Deployment scenarios The Cisco Nexus 9500 Series Switches support various deployment scenarios: â—Ź     Spine nodes in a spine-leaf fabric â—Ź     Core or aggregation node in an L2/L3 network â—Ź     Border gateway in a L2/L3 network Spine-leaf fabric architecture The high port-density and ability to support multispeed ports on the same chassis make the Cisco Nexus 9500 Series Switches … Read more

Cisco Nexus – Port Channel Compatibility Requirements

switch# show port-channel compatibility-parameters port mode Members must have the same port mode configured, either E,F or AUTO. Ifthey are configured in AUTO port mode, they have to negotiate E or F modewhen they come up. If a member negotiates a different mode, it will besuspended. speed Members must have the same speed configured. If … Read more

VLAN Trunking Protocol (VTP)–Part I

Intoduction: VLAN Trunking Protocol is a Cisco proprietary protocol and it’s purpose is to reduce the administration in a switched network. It helps to maintain consistent VLAN information across all switches in a switched network. It helps to manage the addition, deletion and modification of VLANs across the organisation from a central point of control. … Read more

Network Mnemonics

The following is a list of networking Mnemonics that can be used as a method of remembering certain aspects of networking. 1.DHCP process: “DORA” â€“ DHCP process of Discover, Offer, Request, Acknowledge 2. OSI Layers (from Layer 7 to 1): “All People Seem To Need Data Processing” â€“  application, presentation, session, transport, network, data-link, physical “Please Do Not Throw Salami Pizza Away” â€”  bottom-to-top (Layer 1 … Read more

Worldwide Ethernet Switch and Router Marketshare 2019

Cisco remains the market leader in Ethernet Switch and Enterprise/Service Provider Router Market segments according to the latest IDC’s Worldwide Quarterly Ethernet Switch and Router Tracker for 4Q19. Read here Switch Market Highlights Growth in the Ethernet switch market continues to be driven by high speed switching platforms. 100Gb Ethernet switch revenues grew 24.7% year over … Read more

Cisco Completes Acquisition of ThousandEyes

Cisco (NASDAQ: CSCO) today announced it completed the acquisition of ThousandEyes. ThousandEyes’ internet and cloud intelligence platform expands visibility and insights into the digital delivery of applications and services over the internet and the cloud. ThousandEyes enables organizations to visualize any network as if it was their own, quickly surface actionable insights, and collaborate and solve … Read more

How to configure a Cisco switch to act as the DHCP server

This tutorial explains how to configure the DHCP service on a Cisco switch. CONFIGURATION STEPS : Step 1 Enter into Global Configuration mode SW1>enable SW1#configure terminal Step 2 Create a range of excluded IP ranges from the subnet which you don’t want to allocate for end user devices SW1(config)#ip dhcp excluded-address [start address] [end address] … Read more