About Photogregor

Photogregor · 07-10-2018

Hi all, I'm thinking aobut prioritizing traffic over a L2 MAN link (200 MBit Colt Etherlink). Background scenario is: We mainly have two sorts of traffic. One is system monitoring, heart beats etc. of our systems at another branch. This traffic shoul...

Photogregor · 09-22-2017

Hi everybody, I tried to setup a simple L2/L3 routing environment with switch and router, just for learning purpose. Please see attached screenshot for the topology. It does not work, I cannot figure out why. Both PC can ping each other and can ping ...

Photogregor · 01-10-2017

Hi, I've got to ship two SG200-26 to a branch to connect to connect two floors. These floors are connected via fibre optic. But there up to now is no technician at this location so I don't know which type of fibre it is (SM, MM, 50 or 62,5). And I wa...

Photogregor · 11-26-2016

Hi, another question about the old access/trunk/native/tag/vlan stuff: I understand, that the only port that's allowed to tag an egress frame is a trunk port. A trunk port always has a friend who is trunk port as well and who is allowed of receiving ...

Photogregor · 10-15-2016

Hi, I read a lot about that, but surprisingly the question still is not answered: How can a collision occur on a switched network, using twisted pair cables with different wires for sending and receiving? Most answers simply state, that with half dup...

Photogregor · 09-23-2017

Hi Meheretab, hi Predrag, thanks to both of you. Backwards routes where missing, now it works. And yes, the subnet mask for SVI addresses was wrong in my posting, on the switch it was correct (255.255.255.0). Sorry for creating efforts, should have s...

Photogregor · 01-10-2017

Good answer, now I know what I have to consider. Thanks a lot.

Photogregor · 11-27-2016

Perfect, no more questions! Thanx, Stefano

Photogregor · 10-16-2016

That's exactly the point. Thanks for clearing that. I always was searching for the place where the signals could collide as they did on the former coax cable.

Photogregor · 10-15-2016

Hi Richard, machines not capable of full duplex are dying out, sure. But I never understood it in the theory, because on RJ-45, twisted pair and switch technique I don't see any shared media. So how could CSMA/CD ever detect colliding frames? Is it ...

Member Since	‎08-01-2016 12:42 AM
Date Last Visited	‎07-18-2018 12:03 AM
Posts	13

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QoS via layer 2 WAN link?

Simple SVI / Routed Interface scenario does not work

SFP for most usable types of fibre?

Again: Fundamentals of trunks, tags and native vlans

Again: Collisions on switches

Re: Simple SVI / Routed Interface scenario does not work

Good answer, now I know what

Perfect, no more questions!

That's exactly the point.

Hi Richard,