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Brocade ICX Series (cheap & powerful 10gbE/40gbE switching)

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kpfleming

Active Member
Dec 28, 2021
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Pelham NY USA
creidhne said:
I need me some TCP/IP book it seems... I struggle to put down what I have in mind too. What would you recommend? ;D

Anyway. Source (machine in VLAN 10) wants to send the packet to a machine in a VLAN 20, but has no route to do so - so it sends the packet with default gateway's MAC as target (and maybe the IP as well, unsure?) and final destination IP (the one from VLAN 20). Virtual Router receives the packet and knows where to forward it based on the final destination IP, verifies against its routing tables and what not, ACLs, then changes the MAC in the packet to the target machine in VLAN 20. The packet comes out of the VE in VLAN 20 with the source and final destination IP address unchanged, but with MAC now pointing to the correct target machine. Destination machine accepts the packet.
Same principle applies when I'm trying to ping google's server from my LAN 192.168.1.1/24 subnet, my PC has no route for 142.250.186.206 so it gets sent to the default gateway instead which knows what to do with it - there's just many more routers and "hops" for the packet to go through before reaching the destination.
Is that phrased better and is correct now?
Click to expand...
Yep, that's spot-on. The default gateway's IP address is used to find its MAC address (using ARP for IPv4 or ND for IPv6), and then the packet it sent there without changing any of the addresses in the packet. The same happens when the router sends the packet out: the destination IP address (or next-hop router address, if another hop is needed) is used to find the MAC address and the packet is sent on, again without changing the addresses in the packet.

All of this changes when any form of Network Address Translation (NAT) is used; in that case the router performing the NAT does change source or destination addresses in the packet during the forwarding process.
 
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creidhne

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Apr 11, 2020
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kpfleming said:
Yep, that's spot-on. The default gateway's IP address is used to find its MAC address (using ARP for IPv4 or ND for IPv6), and then the packet it sent there without changing any of the addresses in the packet. The same happens when the router sends the packet out: the destination IP address (or next-hop router address, if another hop is needed) is used to find the MAC address and the packet is sent on, again without changing the addresses in the packet.

All of this changes when any form of Network Address Translation (NAT) is used; in that case the router performing the NAT does change source or destination addresses in the packet during the forwarding process.
Click to expand...
Awesome, thank you very much :D
 
M

mkaatman

New Member
Jul 10, 2023
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Edit: I got this working using USB. Those user manuals are handy!

Hey all, Following ICX7250 / ICX7450 - Fohdeesha Docs

I get to "Load The Latest UFI Image" without issue.

I move the ethernet to a regular port.
I use the copy command with my tftp ip subbed in:
copy tftp flash 192.168.2.183 ICX7xxx/SPR08095pufi.bin primary

Every single time I get "abort called" in a random place.

ICX7250-48 Router#copy tftp flash 192.168.2.183 ICX7xxx/SPR08095pufi.bin primary
ICX7250-48 Router#Load to buffer (8192 bytes per dot)
..............................................................................................................................................................................................................................................................................................................................................................................................................abort called
TFTP session timed out

Error in downloading bundle image

Error in processing bundle image
 
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E

EngChiSTH

Active Member
Jun 27, 2018
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Chicago
Urgghh. decided to flash new firmware to 7250 switch and did something wrong - switch no longer has the IP address I assigned earlier, and I cannot connect to serial (new laptop), putty says COM1 not found (did installed it as 'legacy hardware' in Win 11 laptop). Any hints for me ?
I assume I have to follow the guide from the beginning, find cable to connect to management port of 7250 (I can not use normal Cat5E , correct?) and start it all over again?

thank you!

- found the USB to management port cable I had, Win 11 recognized it instantly as 'COM3' , will start debugging
- another update, I am doing something wrong , no matter how much I press 'b' I get no response from terminal screen in putty...
 
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EngChiSTH

Active Member
Jun 27, 2018
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Chicago
EngChiSTH said:
Urgghh. decided to flash new firmware to 7250 switch and did something wrong - switch no longer has the IP address I assigned earlier, and I cannot connect to serial (new laptop), putty says COM1 not found (did installed it as 'legacy hardware' in Win 11 laptop). Any hints for me ?
I assume I have to follow the guide from the beginning, find cable to connect to management port of 7250 (I can not use normal Cat5E , correct?) and start it all over again?

thank you!

- found the USB to management port cable I had, Win 11 recognized it instantly as 'COM3' , will start debugging
- another update, I am doing something wrong , no matter how much I press 'b' I get no response from terminal screen in putty...
Click to expand...
and I do not think I am able to reset it properly (at least still nothing on putty screen after hardware reset attempt) . also reading this RUCKUS Forums - How to perform a hard reset on icx 7450? - Page 3 - CommScope RUCKUS Community Forums (ruckuswireless.com) including statement below

"

Engineering has confirmed that Factory Reset (to default state) is NOT supported on: ICX7250 and ICX 7450.

There was some documentation error about the same on these platforms and is corrected now.

We had some inconsistencies in the software where F/D wasn't triggered as expected on the

Supported models : ICX 7150, ICX 7550, ICX 7650 and ICX 7850.

Engineering has fixed the same in 9.0 version and prep-ported the fix to 8095j. Now these models support Factory Reset.

I tested factory reset on ICX 7550 switch with 8095h, 8095j and is working perfectly.

While we are testing the feature in our lab we observed the below behavior.

If we immediately release the Reset button within 2 Amber blinks after the power cable is plugged in, then Factory reset is triggered.
If you press the reset button for a longer time then Factory Reset Mode button interrupt is getting cleared during bootup and hence Factory reset is Not triggered.

" how sure how true this is since I have ICX7250
 
E

EngChiSTH

Active Member
Jun 27, 2018
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Chicago
thank you - my cable looks like usb on one end and RJ45 on the other. nothing shows up from the switch at all , i have tried two different win laptops (10 and 11). i can also try from chromebook tomorrow from within terminal to see if that sees anything. I wonder how badly I screwed this poor switch up. shouldnt hardware reset set it to default??
if you have any other sugestions, they are appreciated. thank you
 
M

mkaatman

New Member
Jul 10, 2023
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Yeah unfortunately I don't believe that cable won't work. That's for switches that have a serial rj45 port like the old baystack stuff. The only way to get serial with the icx7250 is through serial to micro usb to my knowledge. I suspect your switch is completely fine, but it's reset and you have to use serial to star the configuration process.
 
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EngChiSTH

Active Member
Jun 27, 2018
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Chicago
Thanks! so cable I used is wrong (may be it worked with earlier switches 6450 that I was using...).
my laptops now do not have a serial port anymore so something like this amazon.com/gp/product/B0CL2BPDNK/ would probably not work (nothing to plug it into).

I will also look into DYI, obviously I did set this up before and I think I connected/wired RJ-45 Ethernet jack to mini-usb-b (at least I found it in my toolbox). now getting windows to recognize that it (new laptop) and putty to use it would be a different quest.

and am I right that I can NOT use 'normal' USB-A to mini-usb-b cable for this? I am worried about burning out the management port...
 
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jode

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Jul 27, 2021
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EngChiSTH

Active Member
Jun 27, 2018
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Chicago
E

EngChiSTH

Active Member
Jun 27, 2018
122
46
28
Chicago
kpfleming said:
What did you have plugged into the switch at this time, and into which ports?
Click to expand...
nothing plugged into the switch other than the serial cable.. may be that is the issue.

i tried TFTPboot command and switch booted. now temped to connect to one of the normal (not serial ) ports and try to flash it with latest image

hooked it to another switch, I can now ping the address I assigned (after TFTPboot) and see the front end coming up. I can not login to the 'super' account with either sp-admin (I do not think I reset it) or the password I created earlier.

was able to reset and reflash it.. I think I am all good
 
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epicurean

Active Member
Sep 29, 2014
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After replacing the fans in my ICX7250-48P with the quieter ones recommended here, I just moved all the network connections from the existing unmodified ICX7250 to the modified one, with exactly the same configuration, vlans, etc. Strangely, the network link to my proxmox node via a sfp+ goes down when I moved the sfp+ connector to the modified switch. When I move the sfp+ connector back to the unmodified switch, the link comes back on again.

Any idea what I have missed?
 
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codyjd1

New Member
Sep 7, 2024
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Hello everyone! Sorry for perhaps another dumb question but i'm having a hard time finding info on this matter. I have 2 icx6450p currently and using one port as a trunk between them. I'm looking to add another icx6450p to the mix and perhaps look into Stacking. My question is can i use Port 1 and 3 in the stacking configuration and then use port 2 and 4 for standard data access? I would not want the stacking ports trunked (As in 1/2 together in a trunk and 3/4 in a trunk). Then i would setup the 3 switches in ring using only port 1 and 3 on each switch and then using 2 and 4 for data ports if possible? Thanks so much!
 
L

LodeRunner

Active Member
Apr 27, 2019
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EngChiSTH said:
nothing plugged into the switch other than the serial cable.. may be that is the issue.

i tried TFTPboot command and switch booted. now temped to connect to one of the normal (not serial ) ports and try to flash it with latest image

hooked it to another switch, I can now ping the address I assigned (after TFTPboot) and see the front end coming up. I can not login to the 'super' account with either sp-admin (I do not think I reset it) or the password I created earlier.

was able to reset and reflash it.. I think I am all good
Click to expand...
TFTP is expecting to download the firmware from an IP address.

Are you following the very helpful guide linked in the very first post?
 
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anomaly

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Jan 8, 2018
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Is there a way with the 7x50 series to specify a MAC address for VEs? It seems ip-mac does the trick, but then show interfaces brief still displays the default MAC address generated for that VE.
 
C

cyinite

New Member
Jun 28, 2024
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Hey guys, short term browser and first time posting,

Following a series of modifications and scares, I replaced the fans in my ICX 7250-48P initially with very quiet SUNON fans which turned out to be not thermally respectable and the bane of my existence... buzzing. I swapped them out for Mechatronics fans after this discovery but I find myself coming back to the buzzing. I've done digging and came across older posts but for the ICX 6450...

rosaage said:
Thank you! adding a 330µF cap removed the whining noise.
Here is a video where i power on the switch, test the cap, and measure the pvm frequency (~3kHz).

This video shows a different fan. Since this fan is more quiet and runs slower the whining is even worse. Here you can easily hear the difference with and without the cap. (Ignore the ugly soldering, my gas soldering iron ran out of gas)
The switch had some nice points for soldering, there is a ceramic smd cap together with a set of unpopulated pads on each of the fan headers.
Click to expand...
infoMatt said:
I can confirm in a sense... I've just bought two KDE1204PKVX, and they have a low-ish frequency hum... Way less obtrusive than the stock Foxconn my unit had. But I've put a 10µF cap between positive and negative pins on the sockets, it helps a lot to "smooth out" the hard PWM of the unit.
Click to expand...
I tried hooking up some capacitors (100µF and 220µF) which initially proposed the solution but then quickly became a nightmare which started with a shutoff where it didn't boot again until waiting some time with the outlet turned off and then a boot loop every time the switch fully started up.

Fast forward now, I wanted to ask around if anyone had any solutions for the buzzing specifically on an ICX 7xxx. I may try the 10µF capacitor but I fear this may result in a boot loop like before or even worse... needing to buy another switch.
 
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