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Sorry for a question stemming from trying to get my feet wet in the network world, but I can't seem to get my head wrapped around a packet traversal from one side of a firewall, in a specific VLAN, in a subnet shared - at the other end of the firewall connected to both and configured in transparent mode - with another VLAN. I can't see how the firewall gets to see this traffic, and - even more important - make decisions and influence its "path" from one side to the other.

I stumbled across of a lot of descriptions on how to configure such an environment, but not one describing the flow of packets btw two VLANs, within the same subnet, with a FW in between. And what is the significance of the two VLANs, in such a scenario (why would I tag traffic)?

submitted by /u/dipping-toes-in-net
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Talk about a missed opportunity. Why doesn't every BFD implementation let me query the measured latency to a neighbor???!

I am unreasonably annoyed by this.

submitted by /u/pyvpx
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During a design session for a new server room, our company made a very strange set of choices for equipment. One was pricing out three brand new 48-port gigabit Juniper switches, one for each rack. They are access switches, with an optional 10Gb module (that we aren’t buying).

The countering solution is reviving two HP 5900AF Comware switches that are sitting on a shelf. They are a bit older, but are fully 10- and 40-gig, which all of our servers have. The trouble is that we would have to buy RJ-45 modules, which technically costs a less than the new switches, but would require either longer runs to a Com rack, or buying a third 5900 (not cheap) for the third rack.

All three racks will be 75% to 100% full at all times, with mostly RJ-45 1/10Gb. Some other devices will be using Q/SFP+, but not many.

I want to know if there’s possibly a better option that I’m not seeing. The biggest problem is the budget (shoestring), which we’re shoehorning onto the construction (also shoestring).

Oh, and we can’t buy refurbished or used equipment because reasons. So, yeah. That.

submitted by /u/CynicalAltruist
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Forewarning: This is a rant and I believe it is a perspective that needs to be shared. That’s it.

I’m a female network engineer working in a NOC full of only men. They’re always tripping over themselves to not curse or use weird vulgar analogies when complaining about our company’s executives or whatever because “Oops, can’t say that because celestialparrotlets is in the room!”

I’ve never given a negative response to the dumb things they say about our company/execs and have never given any indication of a reaction other than to chuckle sometimes, because I honestly don’t care and sometimes it’s funny to me. I get it, we’re blowing off steam. But these guys still get all weird about it when I’m in the room. My manager will loudly warn everyone about getting in trouble with HR and then pointedly look at me when this happens.

Give you one guess as to why.

These same dudes worried about me hearing their nasty, unoriginal analogies for bending over for our execs or whatever are the same ones who won’t ever answer any of my questions or address my ideas with a straight face. I constantly get teased like we’re all in middle school and these guys have a crush on me or something. It’s demeaning and infuriating.

Can I share a secret with you all? The women in your workplace don’t really care about the dumbass stuff you say when you’re letting off steam. We’ve all heard Bad Words before; it’s nothing new. We just want to be treated with respect like anyone else and be taken seriously. So please stop teasing us and either answer the goddamn question we just asked you or go fuck off and we’ll ask someone else.

Also, if you can’t handle yourself enough around a woman who is mildly attractive in order to answer a procedural question, rethink your life and get some help.

submitted by /u/celestialparrotlets
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I started Cisco R&S almost 10 years. I'm comfortably employed as a senior engineer and have a CCNP. I would like to jump to an opportunity at a Cisco VAR as a consultant but feel stressed/ worried. Mostly I guess not confident in my knowledge, feel like people think too highly of my skills than what they are. Do you just have to take the plunge?

submitted by /u/packetzero
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I'm trying to simply assign some untagged vlans to a couple of ports on a switch here, but I'm having nothing but problems. Just updated the firmware.

HP J9576A 3800-48G-4SFP+ Switch Software revision KA.16.03.0007 

It's two stacked switches. Here's the command and response I get:

DNS-CORE-STACK# conf DNS-CORE-STACK(config)# vlan 200 untagged 1/37 Module not present for port or invalid port: 1/37 

And here's a bit of show config that makes me think that the port syntax I'm using is right:

vlan 200 name "VLAN200" untagged 1/1-1/6,1/27,1/29 tagged 1/22,1/24,1/26,1/28 ip address 10.10.20.254 255.255.255.0 exit 

I'm pretty dumb at networking. I'm actually trying to assign two ports that are set on dynamic LACP. Could that be it?

DNS-CORE-STACK(config)# show lacp LACP LACP Trunk Port LACP Admin Oper Port Enabled Group Status Partner Status Key Key ----- ------- ------- ------- ------- ------- ------ ------ 1/37 Active Dyn1 Up Yes Success 0 0 2/37 Active Dyn1 Up Yes Success 0 0 DNS-CORE-STACK(config)# vlan 200 untagged Dyn1 Dyn1: Inconsistent value. 

Any assistance would be most appreciated.

submitted by /u/mautobu
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Reddit - Networking by /u/thisisprobablyatrap - 16h ago

Verizon Transport reports fiber cut between Olivehurst and Sacramento,CA. 2 Ciena Ultra Long Haul rails and 1 Fujitsu Ultra Long Haul rail are impacted. Verizon Field Operations technician was dispatched out to Sacramento, CA to perform OTDR reading and was showing damage to be 42,000 feet or approximately 8 miles out.

As of 22:24Gmt Verizon field technicians have found 3 cables damaged in a homeless camp 384 count,600 count and a 216 count cable damaged. Cables were damaged by vandalism. Damage was located by the bike bridge going over the American river. All 3 of these cables are Verizon's. Field operations reports additional resources in route. Repairs and restoration is still in progress. No estimated time of repair yet.

submitted by /u/ThisIsProbablyATrap
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I have a raspberry pi hosting Apache on a personal closed network, but the only page I can connect to is the index page, but none of the other pages I have. How do I go to those other pages from a different device on the network?

submitted by /u/Datblock
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Greetings,

I recently turned up a Megaport private DX and the only documenation I can find on running BFD over the BGP peering says that it should already be enabled on the AWS end (300ms, multiplier 3).

I set it up on an SRX on my end and BGP came up, routes exchanged, but BFD has never come up. Is there something I'm missing?

submitted by /u/oddchihuahua
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