PowerC M6220 Simple VLAN problem

I have 20 ports half to one VLAN and the other to another VLAN. Pretty simple. No routing or other complex setups. Now I am getting intermittent slow down periods and at different times of the day. There is no pattern to it. This didn't start happening till I made 2 VLANs. Before everything was on one network. Here is my configuration and the IPs I have changed for security but everything else is exactly as it is. This is setup is on 2 switches on the back of my M1000. Both switches have the same configuration except for the IP addresses.

Any Help is appreciated.

!Current Configuration:
!System Description "PowerConnect M6220, 4.2.1.3, VxWorks 6.6"
!System Software Version 4.2.1.3
!Cut-through mode is configured as disabled
!System Operational Mode "Normal"
!
configure
vlan database
vlan 2
exit
slot 1/0 1 ! PowerConnect M6220
stack
member 1 1 ! PCM6220
exit
interface out-of-band
ip address 192.168.1.3 255.255.0.0 0.0.0.0
exit
logging email from-addr 12882503@something.org
logging email message-type urgent to-addr sysadmin@something.org
logging email message-type non-urgent to-addr sysadmin@something.org
mail-server "mail.something.org"

                     

security none
username admin
password #######
exit
username "root" password "sdfsdfsd" privilege 15 encrypted
username "fieropunk" password "sdfsdfs" privilege 15 encrypted
!
interface Gi1/0/1
switchport access vlan 2
exit
!
interface Gi1/0/2
switchport access vlan 2
exit
!
interface Gi1/0/3
switchport access vlan 2
exit
!
interface Gi1/0/9
switchport access vlan 2

                     

exit
!
interface Gi1/0/10
switchport access vlan 2
exit
!
interface Gi1/0/11
switchport access vlan 2
exit
!
interface Gi1/0/12
switchport access vlan 2
exit
!
interface Gi1/0/13
switchport access vlan 2
exit
!
interface Gi1/0/17
switchport access vlan 2
exit

                     

enable password "sopmething" encrypted
exit

Responses(1)

A

Anonymous

5 Practitioner

•

274.2K Posts

0

May 11th, 2012 14:00

Looking at the config, it does appear to be very basic and off the top I see no issues.

One of the first and easiest places to look is always the firmware, in this case the switch firmware is up to date. I would check the M1000E CMC and ensure it is up to date.

www.dell.com/.../DriverFileFormats

Since we have two switches, we may need to try enabling spanning tree to help prevent any loops.

Page 719:

support.dell.com/.../cli.pdf

Example command:

console> enable

console# config

console(config)# spanning-tree mode stp

console(config)# spanning-tree hello-time 2 (this is the default setting)

console(config)# spanning-tree max-age 25 (the default is 20)

console(config)# spanning-tree forward-time 15 (this is the default setting)

console(config)# exit

It may be helpful to run some of these commands when the issue opccurs, to get an idea of any possible cause.

• CPU Utilization

• console#show process cpu

• Memory Usage

• console#show memory cpu

Interface Statistics

console#show interfaces counters

console#show interfaces switchport

• Monitor CPU packets

console(config)#monitor session 1 source interface cpu

console(config)#monitor session 1 destination interface gi1/0/1

console(config)#monitor session 1 mode

Something else that may help out is to get open manage network manager installed. You can chart network performance and monitor traps and events through the software. This may help narrow down exactly what is causing the issue. Here are some link and info on the software.

Download:

www.doradosoftware.com/.../download

General info:

www.dell.com/.../pwcnt_kyle_brochure.pdf

www.dell.com/.../network_software

Tutorials

www.dell.com/.../network_management_video

http://www.dell.com/downloads/global/solutions/Dorado-OMNM-web.swf

Licensing

www.dell.com/.../OMNM_5.0_license_model.pdf

Another good network application is wireshark. It can help isolate issues on the network.

wiki.wireshark.org/NetworkTroubleshooting