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6 Posts

96669

May 18th, 2015 04:00

Problem with N4032 Switches

Hi

I have 2 x N4032 Switches and 7 N2048 edge switches

Each switch has an uplink port to 1 of the N4032 switches

2 Vlans configured 

Uplink ports are configured as Trunk Ports, and all ports on the N4032 are configured as Trunk Ports

My issue is that only some devices get ip addresses, and not all devices can be contacted even once they get an ip address

If I remove the N4032 Switches, and daisy chain the 7 switches using only the Access Ports (for that vlan) everything works fine

RST is configured on all ports

There are no errors in the logs either so i am very very confused

6 Posts

May 22nd, 2015 14:00

Everything is all sweet now and working exactly as it should

I guess it was a case of double checking and making sure all settings are applied properly :)

6 Posts

May 18th, 2015 09:00

configure

!

!Cut-through mode

spanning-tree mode rstp

!

vlan 3

name "Phone"

exit

vlan 2

name "Curriculum"

exit

vlan 2-3

exit

hostname "PoE_Access_Switch_9"

stack

member 9 9    ! N4032

exit

ip igmp snooping

ip igmp snooping querier address 10.23.14.253

ip igmp snooping vlan 3

ip igmp snooping vlan 2

ip name-server "10.23.14.10"

ip default-gateway 10.23.14.254

ip route 0.0.0.0 0.0.0.0 10.23.14.254

interface vlan 2

ip address 10.23.14.245 255.255.254.0

exit

username "LMAdmin" password HqTZ0S5F=Z|67%D privilege 15

voice vlan

line console

password HqTZ0S5F=Z|67%D

exit

line telnet

password HqTZ0S5F=Z|67%D

exit

interface vlan 1

no ip address

exit

interface range gi1/0/1-36

switchport mode access

switchport access vlan 2

exit

interface range gi1/0/37-48

switchport mode access

switchport access vlan 3

exit

interface range te1/0/1-2

switchport mode trunk

switchport trunk allowed vlan 1-3

exit

ip vrrp

!

6 Posts

May 19th, 2015 07:00

Hi

Thanks, no I haven't tried general yet.

At the moment all I have connected is 22 x Dell IAP 205 Access Points, which all 22 get an Ip address from DHCP but only 14 of them can communicate, all 22 AP's are spread over 3 2048 POE Switches

I cannot access two of the 2048 non poe switches via their static ip addresses

It is very very odd

If I daisy chain all the switches (and take out the N4032) everything works as it should it (using only access ports)

I have two N4032's configured identical, every port configured as Trunk with default vlan and all access for all other vlans

6 Posts

May 21st, 2015 12:00

I think I may have the problem now solved

It would appear one of the switches seemed to be locked up in a stack that it wasn't part of, had to totally factory reset and restore from system image and now that switch seems ok,

It also appears one of the other switches hadn't saved the config on the trunk ports and had them still tagged for a single vlan

Working on them again tomorrow so will know then if all is now fixed :)

6 Posts

May 21st, 2015 13:00

Thanks, I had to strip everything out and just take it back to basics, check double and triple check the configs, CLI and Web and systematically reconnect each switch back making sure I could ping test the devices

Hopefully tomorrow everything will now be sweet :)

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