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Understanding Dense Wavelength Division Multiplexing (DWDM)

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Understanding DWDM Dense Wavelength Division Multiplexing (DWDM) is a piece of modern networking technology revolutionizing how data is transmitted over optical fibers. Its ability to maximize fiber capacity, boost data transfer rates, and facilitate long-distance communication has become a fundamental technology in telecommunications and data transmission. DWDM is a sophisticated technology that allows multiple data … Read more

Mastering Cable Management in Data Centers: The Unsung Hero of Seamless Operations

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close up photo of cable wires

Importance of Cable Management: Best Practices in Cable Management: Challenges and Solutions: Effective cable management isn’t merely about aesthetics; it’s a crucial element in ensuring data center operations’ reliability, efficiency, and longevity. As the digital landscape evolves, organized cabling becomes increasingly indispensable in maintaining seamless operations in data centers.

Mikrotik Router OS 6.49.11 has been released

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What’s new in 6.49.11 (2023-Dec-08 16:37): *) console – display “End-User License Agreement” prompt after configuration reset;*) defconf – use “WISP Bridge” default configuration mode for RBGrooveGA-52HPacn device;*) poe-out – improved “auto-on” mode for devices with single PoE-out port;*) pppoe-server – fixed connection count limit per license level;*) wireless – fixed “wlan1” default name for … Read more

The Day the Network Went Rogue: A Network Admin’s Day Off

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Morning Mayhem: The day started innocently enough. The network admin, let’s call him Ned, declared a day off, believing the network to be in perfect harmony. Little did Ned know, the servers had other plans! Emails started pinging, alerts went haywire, and printers began spewing random symbols. It was as if the digital universe conspired … Read more

Where is all this port udp port 443 traffic coming from? Understanding QUIC.

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black samsung tablet display google browser on screen

QUIC operates atop UDP, integrating TCP and TLS (Transport Layer Security) features to offer a streamlined, encrypted, and low-latency connection. Unlike TCP, QUIC doesn’t require a handshake process before data transfer begins. By combining encryption and connection setup, QUIC significantly reduces latency, benefiting both web browsing and application performance. Key Advantages of QUIC https://peering.google.com/#/learn-more/quic Implications … Read more

What is N+2 Redundancy in terms of Data Center reliability?

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N+2 redundancy is a design principle implemented in data centers to guarantee high availability and minimize the risk of service disruptions due to equipment failures or maintenance activities. At its core, the concept ensures that more resources are available than required to sustain operations under normal circumstances. The ‘N’ in N+2 represents the necessary infrastructure … Read more

Selecting a Data Center and what to look for

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Selecting the right data center is a critical decision that impacts your business’s efficiency, reliability, and security. Conducting thorough research, visiting facilities, and engaging with providers directly can provide valuable insights to make an informed choice. The following is a list of things you should look for in a Data Center. Reliability and Security: Infrastructure … Read more

Packets Down Range #28:Databank expands, H5 Expands, fiber isn’t King everywhere

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This is going to be a quick PDR. I am getting back into the swing of blog posts, and now back into Packets Down Range. More regular PDR’s coming. Data Center News •Netrality secures $380 Million sustainability-linked credit facility. • H5 Announces San Antonio expansion. •Databank is one of the latest to expand in Virginia. … Read more

Understanding BGP Attribute Local Preference

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Interconnection

Local Preference is a BGP attribute that is pivotal in influencing route selection within an autonomous system (AS). Each BGP router within an AS assigns a Local Preference value to incoming BGP routes. This value indicates the preference for routes and helps determine which route will be chosen as the best path for outbound traffic. … Read more

The anatomy of a network router’s routing table

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A route table is essentially a database used by a router to determine the optimal path for forwarding data packets. It consists of a collection of entries, each representing a destination network or a specific host. These entries contain essential information that helps the router make informed routing decisions. Key Components of a Route Table … Read more

Mikrotik Version 7.12 PSA

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From the latest Mikrotik Newsletter. Because of the introduction of a new wireless package, we would like to bring to your attention thatRouterOS will now show upgrades only up to 7.12 if using an older version of the software. You willhave to first upgrade to 7.12, and only then will newer RouterOS versions become available.

Routing Bells – A Christmas Carol for network engineers

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“Routing Bells” Verse 1:Dashing through the LANIn a one-gig open sleighO’er the switches we goPinging all the wayBells on routers ringMaking VLANs brightWhat fun it is to troubleshootAnd fix things through the night, hey! Chorus:Routing bells, routing bellsRouting all the wayOh, what fun it is to traceAnd fix those lines today, hey!Routing bells, routing bellsRouting … Read more

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