Hdlc Puns

I live in a historic shotgun and need a structure built in my back yard, this includes extending the plumbing and electricity. I've had a lot of frustration with people not showing up or calling me back so I though I'd try to post here. All work will require a OneStop application and HDLC approval.

First let me start off by saying that yes, I am an idiot. I had a wood privacy fence installed in my yard, which is located in the upper 9th/st claude neighborhood, in an area that belongs to the bywater HDLC.

Now here is where I'm an idiot. I submitted to a request to build an 8' high fence. I got approval, but I must have read it very quickly because what I didn't realize is that they only actually permitted me for a 7' fence. So now I have a lovely 8' fence put up and I'm wondering what I should do. It looks like I'm supposed to have a "follow-up" inspection once the project is done.

I figure my options are:

1. Remove the flat cap, cut off the top 12" of the fence, cry, and add the flat cap back on
2. Leave it as it is, and just don't do the followup inspection. hope that with all the ransomware + coronavirus craziness they just don't notice. Since I'm on the lake-side of St Claude, I don't think people patrol as much but that could be a bad assumption.
3. Do the followup, and hope that the person can't really tell the difference between a 7ft and 8ft fence (i'm not sure if they actually measure it, or look at it from the street. If it's the latter, the fence is a good 50ish ft from the sidewalk). If I do get caught, I'm not sure what will happen - will they fine me? Will they make me do option #1? This is something I'm trying to figure out.

If anyone has advice, this dummy would appreciate it.

*Now, the whole reason I assumed I could install an 8ft fence is because I have a neighbor who is in the zone that has a 10' fence that just got installed about 1 year ago. Also, the HDLC doesn't actually specify a height (when I called to ask for some information, the HDLC person actually had to do some searching and call me back because they had trouble finding it), it's in the CZO list.

I'm working on a project Cisco HDLC and trying to better understand how it operates. I'd like to be able to look at representative raw HDLC frames from a Cisco router and compare to my understanding of the ISO/IEC 13239:2002 HDLC specification. I understand that the Cisco proprietary HDLC implementation deviates from the ISO HDLC specification and I think that inspecting some raw Cisco HDLC frames may help me gain a better appreciation for how it deviates as well as cementing my understanding of the spec with real data. A s someone with no experience with Packet Tracer, is this something that's doable with the software?

Thanks

I'm a bit confused about when HDLC encapsulation can be used. Do Cisco routers support the use of HDLC encapsulation on an asynchronous serial link? I tried playing around in Packet Tracer, but for some reason could not execute the command physical-layer async.

I am confused (as always) - Is Cisco focuses more on HDLC? How does it encapsulates where L3 is inserted inside of L2? Is it because there is a router involves in it?

"HDLC (layer 2) encapsulates the layer 3 frame, adding data link control information to a new, larger frame." - https://searchnetworking.techtarget.com/definition/HDLC

Thanks in advance for the answers!

I understand the concept of the PPP multilink bundle and how it works, however what if you want to bond T1s that are using HDLC encapsulation?

I live in a historic district and need a shed. I want to just buy a resin one from home depot. I know in some places those resin type sheds are considered "portable" and so they don't have the same jurisdiction. The HDLC person on the phone wasn't too helpful, they told me to apply for permits...but that seems silly to pay for that if if they will just deny it.

Has anyone here had experience with this? If so, I would greatly appreciate advice.

Alternatively...has anyone had experience with fines? I've been told by several people to just put it up and if they notice/dispute then just pay the fine.

I can't understand this sentence in my curriculum: >The address field contains the HDLC address of the secondary station. This address can contain a specific address, a group address, or a broadcast address. A primary address is either a communication source or a destination, which eliminates the need to include the address of the primary.

Since hdlc is used in point-to-point links why does it can be either a group address or a broadcast address I mean it shouldn't have a broadcast address since is a point-to-point link no?

Sorry if I am wording this weird but I want to make sure I understand this correctly. Leased lines are just a point to point connection, so it uses HDLC, which is layer 1 and it encapsulates the data slightly different than layer 2 does. EoMPLS is more layer 2 and encapsulates the data just as it would in a layer 2 LAN device.

TL;DR: Need to know what chapter covers Serial connections and talks about the different types and how they work etc. List of chapter topics below.

I'm studying for the ICND1 and using CBT nuggets (videos only). The videos are good in that it's a very direct approach to preparing for the actual exam, but is lacking in the details I'm sort of curious about.

I'm also taking a networking course at my local college and using Data Communications and Networking 5th Edition by Forouzan. The information goes fairly deep for an intro to the subject and provides most if not all the info I'm wanting to read about.

I've opened every chapter (32 of them) and read the first page to see where it might talk about serial connections but I didn't see it. I thought transmission media might but it, but I searched the PDF for 'serial' and came up with nothing. Here is a list of the topics of each chapter. Could you help me identify the chapter(s) I need to read? Also for those experienced with the CCNA cert path, which topics should I pay the most attention to and really build my foundational knowledge on?

• Introduction
• Network Models
• Physical Layer
• Digital Transmission
• Analog Transmission
• Bandwidth Utilization
• Transmission Media
• Switching
• Data-Link Layer
• Error Detection and Correction
• Data Link Control
• Media Access Control
• Wired LANs: Ethernet
• Other Wired Networks
• Wireless LANs
• Other Wireless Networks
• Connection Devices and Virtual LANs
• Network Layer
• Network-Layer Protocols
• Unicast Routing
• Multicast Routing
• Next Generation IP
• Transport Layer
• Transport-Layer Protocols
• Application Layer
• Standard Client-Server Protocols
• Network Management
• Multimedia
• Peer-to-Peer Paradigm
• Quality of Service
• Cryptography and Network Security
• Internet Security.

UPDATE: Just searched every chapter for "serial" and only got results in Digital Transmissions where it talks about transmission modes. I'm going to be reading this, but through my quick reading of the paragraphs dealing with serial mode I didn't see any mention of PPP/HDLC or frame relay etc.

Hello, im studying for ICND1 and im having some issues understanding a few protocols. Can someone explain the difference between MPLS and HDLC. From what i understand, they both encapsulate data and try to be efficient. Thats about it in my mind.

Quick question...

I've just started reading ICND1 100-101 official cert guide and am on chapter 3.

I don't know if this is answered later on in the book, but going over WAN technologies versus LAN technologies, I can't help but wonder.

Why not just use Ethernet frames for layer 2 transport? Why create a whole new protocol, such as HDLC or PPP?

Is it because of the nature of WANs, and how there are many physical connections, in between source and destination?

Thank you for any help you might be able to provide.

EDIT: I kept reading!

It looks like (at least according to the book) that the reason why Ethernet in the past hasn't been used as a WAN technology was the physical limitation of Ethernet cabling (length restrictions).

Since the advent of 1000BASE-LX ethernet has become a viable Layer 2 protocol for WANs.

Thanks anyway, /r/CCNA!

Because Cisco adds the Type field to their propriety HDLC headers, does that mean they are not compatible to connect with other devices using the HDLC protocol over a WAN?

Is there a way to turn off the Cisco HDLC to combat this? Or are other devices smart enough to ignore/use the Cisco HDLC?

I was really disappointed in CF when my friend came to my town with her HDLC items and the crap started replacing stuff in my Able Sisters shop. I love to visit people but I don't want that stuff in my new game.

Curious if you could use a ISR (2800/3800 Series) router with a HWIC-2SER cards to convert HDLC synchronous to asynchronous and vice versa. Currently have working connections from one HDLC Sync serial to another. The challenge is a manufacturer has created a new product that only dumps out async, but, in theory, should be compatable protocol wise with the sync data. A Company called DCB makes a box which allows the conversion of ASYNC to SYNC, however, I feel like this could all be accomplished within the Cisco's currently in use.

pseudowire-class [name]
 encapsulation l2tpv3
 ip local interface [interface]

Interface S0/0/1
 no ip address
 no fair-queue
 clock rate 9600
 xconnect ip pw-class [name]

Any thoughts/ideas? The data crossing this connection is v.24 HDLC if that's any help.

Possibly very stupid question ahead

Here is the topology.

In the CCNA Exploration [4.0] WAN lab guide, in one exercise, it has us building a network with 4 routers using OSPF routing protocol. THEN it has us configuring PPP on R1-R2 and HDLC on R2-ISP. My question is why are we configuring PPP/HDLC on these routers when OSPF will take care of connectivity and security? I guess I am looking for real world examples to help me conceptualize this.

Keep in mind I am studying on my own, so I apologize if this is a very basic question.

I am testing communication between my embedded WEB server and sensors. PHY level is RS485, on data level I followed RFC 1662 and wrote partially compliant HDLC frame parser and generator. For testing purposes I am using RealTerm and the "manual" testing process is somehow cumbersome: prepare HDLC frame, calculate FCS, type hex bytes in the RealTerm, send frame, ... I would like to automate it at least low level HDLC (CRC calculation and framing). My question is: is there serial port terminal which can "talk" in HDLC?

Thanks! s54mtb

Reviewing Todd Lammle's CCENT book, the Intro to WAN chapter, specifically. He lays out "PPP contains four main components" EIA/TIA-232-c, V.35, etc - HDLC - LCP - NCP.

I was under the assumption that HDLC was an alternative WAN encapsulation protocol and could be used instead of PPP, and vice versa? Both are considered "point to point protocols" according to the book, I'm just curious as to how HDLC can be a component of PPP itself.

I have an energy meter Hexing HXE12B and i am familiar with analog circuits.

The energy meter has an RS485 output over which it talks IEC 62056-21.

http://www.bst.co.ir/files/files/single%20phase%20DLMS%20HXE12%20meter%20Catalogue%20V1_0-90_6_27.pdf

I would like to be able to read and comunicate with the device on the application layer, i.e write and recieve functions like Timer_ON, Timer_OFF, READ_value, instead of recieving a bit-train which i cannot interperted.

The plan is to use the RS485 serial interface and link this to USB (converter cable), and finally read it out on the PC.

The problem is i am not well familiar with the mulitiple programming platforms required to view the communication on my screen,

Does anyone have any suggestions, on how he would work with these files, and which files i would require? library and stuff?

http://www.gurux.fi/index.php?q=Downloads

i have downloaded netbeans 7.3, i would rather work with C++ than with java,

also i have no clue how i can make the USB port readable into the program i am going to work with.

I think these questions are rather basic for any good programmer, anyone care to help me out?

.dll files? java files? executeables? .msm files? .addIn dunno when i have struck gold cause all these files look meaningless to me

https://gurux.svn.sourceforge.net/svnroot/gurux/

what can i do with something like this?? and its way to much whats the main programm Q_____Q

Here is some more code.. i would like to know how i can actually use this.. i can read the code but what programm do i need to make the code function and actually do what it says? i would like to read the output of requested information on a screen for example

http://www.cyamon.com/dlmscosem_packages.html

Hi everyone,

I took the CCNA exactly one week ago. I can’t stop my willing to learn and I’d like to achieve CCNP. Do you think is it possibile to understand the material without any experience in the IT field, only with the CCNA knowledge?

Thank you.

Phil

Things like speed in auto negotiation using hubs/switchs, ethernet frame format in bytes detail, HDLC frame format in bytes, maximum cable lenght in every IEEE standard protocol, etc.These things are in the CCNA test?

Sudden Lee

Go post NSFW jokes somewhere else. If I can't tell my kids this joke, then it is not a DAD JOKE.

If you feel it's appropriate to share NSFW jokes with your kids, that's on you. But a real, true dad joke should work for anyone's kid.

Mods... If you exist... Please, stop this madness. Rule #6 should simply not allow NSFW or (wtf) NSFL tags. Also, remember that MINORS browse this subreddit too? Why put that in rule #6, then allow NSFW???

Please consider changing rule #6. I love this sub, but the recent influx of NSFW tagged posts that get all the upvotes, just seem wrong when there are good solid DAD jokes being overlooked because of them.

Thank you,

A Dad.

Well, toucan play at that game.

Windows

Martin Freeman, and Andy Serkis.

They also play roles in Lord of the Rings.

I guess that makes them the Tolkien white guys.

She said apple-lutely

'Eye-do'

This is my first post pls don't kill me lol.

The people in the comment section is why I love this subreddit!!

Cred once again my sis wants credit lol

Keep in mind, my son is 4 years old, so everything is an original to him.

I had to work late into the evening yesterday, and he was just going to bed when I got home. I had left home for the office nearly 14 hours prior, had a long day, lots of meetings, traffic, etc.

When I walked through the door, I was exhausted, run down, and starving. My wife hugged me and asked how my day was, and I replied, "Done. It was a good day, but has got me exhausted. I just want to grab a bite and go to bed. I'm hungry."

From my son's bedroom, I hear him shout, "Hi Hungry! Nice to meet you!"

Not only did it make me laugh, but I completely forgot about how hungry and tired I was. I went to his bedroom, and we laughed together about it. It was exactly what I needed.

Edit: Thanks for all the awards, kind strangers! I'll let my son know y'all enjoyed his joke too!

I heard parents named their children lance a lot.

First post please don't kill me

Edit: i went to sleep and now my inbox is dead, thank you kind strangers for the awards!

Japan.