About Nikolay Pertsev

Nikolay Pertsev · 12-04-2024

On Cisco CBS-350 switch, when attempting to remap DSCP 46 (EF) to 18 (AF21) on the Out-of-Profile DSCP mapping, a following error occurs:"The re-mapped dscp must be mapped to the same queue as the mapped dscp."The manual for the switch mentions that ...

Nikolay Pertsev · 01-27-2015

Hello.I would like to monitor QoS statistics of my Cisco SG-300 switches over SNMP.I found QoS statistics configuration page where I was able to setup two counters.Now I have two questions:1) How can I read QoS statistics counters over SNMP?2) Is QoS...

Nikolay Pertsev · 01-17-2015

I am setting up QoS (advanced mode) on Cisco SG-300 52 switch.I decided to go with DSCP to manage packets priority. While setting it up I found a configuration page (see the attached file for screenshot) where it is possible to map DSCP values to a p...

Nikolay Pertsev · 07-25-2014

Hello,I have a Cisco Wireless-N Bridge for Phone Adapters. I decided to update firmware on the device. I downloaded it from official Cisco web site download page. Then I just logged in to the device and initiated update procedure. I waited good amoun...

Nikolay Pertsev · 11-13-2013

Hello,I have Cisco SG300-52MP switch. Recently device has rebooted itself sending following message to remote log server after bootup.Nov 10 09:12:51 switch %Box-F-INVALID-PARAM-SETTING: Function BOXG_poe_i2c_read_mem_byte: invalid param recv_byte_PT...

Nikolay Pertsev · 01-18-2015

HI, Tom and thank you for answer.It all makes sense. The point of my question is why the DSCP values 48 - 63 have queue number 3 assigned while DSCP values 40 - 47 have queue number 4 which is of higher priority.In this way the packet with DSCP value...

Nikolay Pertsev · 01-18-2015

I see. I just re-read his post and I think you are right.Well, if switch is operating in L3 mode, couldn't he setup ACLs rejecting packages where destination is VLAN ID itself (192.168.10.254 for example) and ports are 22, 23, 80, 443 or whatever els...

Nikolay Pertsev · 01-17-2015

That sounds correct. But something can be done about it.Let's say there is management VLAN 10. Also, there are 5 more production VLANs - 20, 30, 40, 50, 60. There is router somewhere which allows traffic to pass from one VLAN to another.Someone from ...

Nikolay Pertsev · 11-23-2013

I appreciate your help, Tom.Good to hear it was fixed!If I will spot another bug - I will report it.Nikolay

Nikolay Pertsev · 11-23-2013

Hi Reuben,I did upgrade the switch software to the version 1.3.5 last night. Switch worked perfectly over the night and continues to work well now.I didn't do extensive testing with Wireshark and so forth, but I played with NTP settings: first, I set...

Member Since	‎11-12-2013 07:07 AM
Date Last Visited	‎12-10-2024 12:11 AM
Posts	15
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Out-of-Profile remapping to a lower queue on CBS-350 switch

Cisco SG-300 QoS statistics over SNMP

Cisco SG-300 52 QoS default DSCP to queue mapping

Cisco Wireless-N Bridge for Phone Adapters firmware update problem

Cisco SG300-52MP connectivity problem

HI, Tom and thank you for

I see. I just re-read his

That sounds correct. But

Re: Cisco SG300-52MP connectivity problem

Cisco SG300-52MP connectivity problem