Community discussions

MikroTik App

Search found 13 matches

by emunt6
Tue Jan 05, 2021 2:02 am
Forum: General
Topic: CRS354-48P-4S+2Q+ traffic problem on ports 1 to 8
Replies: 249
Views: 41038

Re: CRS354-48P-4S+2Q+ traffic problem on ports 1 to 8

Update The Port problem its seems like a Marvell chip issue, i found this another forum ( http://forum.eltex-co.ru/viewtopic.php?t=9408 ) Same problem, the solution is RMA: replacement for a new one. After this, I dont think all of the CRS-354 swicthes are affected. It's not the Mikrotik's fault. Th...
by emunt6
Mon Jan 04, 2021 4:33 pm
Forum: General
Topic: CRS354-48P-4S+2Q+ traffic problem on ports 1 to 8
Replies: 249
Views: 41038

Re: CRS354-48P-4S+2Q+ traffic problem on ports 1 to 8

Hi! I bought the "predecessor" of this switch - CRS-328 it has "Prestera-DX3236" chip with integrated CPU - rock solid since. The CRS356 released - i planned to buy it - but after seeing the specs and this topic, it is clearly a "NO-GO" situation. The problem is simple:...
by emunt6
Fri Sep 04, 2020 10:39 pm
Forum: General
Topic: CRS328-24P and 10GB SFP (Bridge Mode) Bandwidth slow
Replies: 2
Views: 322

Re: CRS328-24P and 10GB SFP (Bridge Mode) Bandwidth slow

HI!
The slow performance is because its using the CPU instead of the switch-chip.
The solution is you create one bridge and play with pvids/ tagged/ untagged.

https://wiki.mikrotik.com/wiki/Manual:Interface/Bridge
>section: VLAN Example #3 (InterVLAN Routing by Bridge)
by emunt6
Wed Aug 26, 2020 4:40 pm
Forum: General
Topic: CRS328 - LLDP and BRIDGE
Replies: 0
Views: 235

CRS328 - LLDP and BRIDGE

Hi! The current LLDP implementation with BRIDGE interfaces is useless. PROBLEMS: -LLDP currently sending the bridge-interface name to the neighbor device - "FIX: send the physical interface-name" -LLDP filters - "FIX: need some fields to remove which is not necessary to advertise: dev...
by emunt6
Tue Aug 20, 2019 10:53 pm
Forum: General
Topic: Severe port flapping on CRS328-24P-4S+ and CRS317-1G-16S+
Replies: 199
Views: 43585

Re: Severe port flapping on CRS328-24P-4S+ and CRS317-1G-16S+

Hi! I just found this topic. Did you use the Mikrotik switch through an UPS(uninterruptible power supply - sinus wave type) hardware ? If not, then this maybe a main problem - the power supply might have receiving some OVP/OCP/SCP effects - causing the port flapping. In my case - yes, they were on ...
by emunt6
Tue Aug 20, 2019 10:28 pm
Forum: General
Topic: Severe port flapping on CRS328-24P-4S+ and CRS317-1G-16S+
Replies: 199
Views: 43585

Re: Severe port flapping on CRS328-24P-4S+ and CRS317-1G-16S+

If the problem is on power supply there will be port flapping always, no matter what OS is running. I have always port flapping when winning RouterOS (every single version on it) and never when running SwOS 2.7. We have a lot of 317 some connected to 326, 328 - different versions, all with SFP+ 10G...
by emunt6
Tue Aug 20, 2019 8:55 pm
Forum: General
Topic: Severe port flapping on CRS328-24P-4S+ and CRS317-1G-16S+
Replies: 199
Views: 43585

Re: Severe port flapping on CRS328-24P-4S+ and CRS317-1G-16S+

Hi! I just found this topic. Did you use the Mikrotik switch through an UPS(uninterruptible power supply - sinus wave type) hardware ? If not, then this maybe a main problem - the power supply might have receiving some OVP/OCP/SCP effects - causing the port flapping. In my case - yes, they were on ...
by emunt6
Tue Aug 20, 2019 8:41 pm
Forum: General
Topic: Severe port flapping on CRS328-24P-4S+ and CRS317-1G-16S+
Replies: 199
Views: 43585

Re: Severe port flapping on CRS328-24P-4S+ and CRS317-1G-16S+

Hi!

I just found this topic.

Did you use the Mikrotik switch through an UPS(uninterruptible power supply - pure sinus-wave type) hardware ?
If not, then this maybe a main problem - the power supply might have receiving some OVP/UVP/NOISE effects - causing the port flapping.
by emunt6
Fri Aug 16, 2019 12:13 am
Forum: RouterBOARD hardware
Topic: CRS326-24S+2Q+RM Question
Replies: 3
Views: 1608

Re: CRS326-24S+2Q+RM Question

Hi!

The "CRS326-24S+2Q+RM" is an L2 switch.
Do not consider as an L3 routing core - CPU resurces is not enough - you will end up serious lags/packet drops.
by emunt6
Thu Jul 19, 2018 12:45 am
Forum: Beginner Basics
Topic: CRS328-24P-4S+ VLAN Setup Problem
Replies: 21
Views: 4319

Re: CRS328-24P-4S+ VLAN Setup Problem

Hi! According to your setup: ---------------------------------------------------------------- VLAN10: management the switch VLAN20: should be for PCs eth1: router (trunk: tagged vlan10 and tagged vlan20) eth2- eth24: PC (vlan-20: untagged) ------------------------------------------------------------...
by emunt6
Sun Jul 08, 2018 2:02 am
Forum: SwOS
Topic: CRS328 - improvements
Replies: 1
Views: 2545

CRS328 - improvements

Hi!

Please add the following features to this kind of series switches - CRS-328xxx
(SOFTWARE)
-IP DHCP SNOOPING: L2 layer trusted / untrusted ports
-IP Source Guard: ARP with DHCP-SNOOPING
-Port Security: Group of MAC/IP list

(HARDWARE)
-Hot plug DUAL port removable PSU
Thx.
by emunt6
Sun Jun 10, 2018 1:51 am
Forum: RouterBOARD hardware
Topic: MUM Europe 2018 - New hardware incoming
Replies: 52
Views: 22172

Re: MUM Europe 2018 - New hardware incoming

Hi!

Is there any information when it will be available these switches?
CRS354-48P-4S+2Q+
CRS354-48G-4S+2Q+
by emunt6
Sun Feb 04, 2018 9:54 pm
Forum: General
Topic: I cant get more than 50 Mbps through a PtP Netmetal 5 link
Replies: 31
Views: 4078

Re: I cant get more than 50 Mbps through a PtP Netmetal 5 link

Hi, yes, it´s real... why I will false this test? 1434Mbps / 8 bits = About 180 MBytes, tomorrow will test with a Gigabit ethernet port computer and try to make a test with iperf... today make a iperf test but two sides PCs are connected through a wifi router and max speed are 3 Mbytes. The real te...