Cisco SG350 - does not pull DHCP via trunk and other misc probs

[JarnoValkonen38927]

Hi!

I got three Cisco SG350 switches connected together via trunk ports and has two VLANS (10 and 20). 28 port version has four trunk ports (two RJ45 and two SFP module slots) and those have been connected to those 10 port versions trunk ports. Now I have a problem with DHCP server that is configured into SG350 with 28 ports. It does not give addresses to devices through trunk when connecting those to 10 port switches, but DHCP server seems to work fine when connecting directly 28 port switch. Odd thing is that if I use CAT-cables, DHCP does not work for smaller switches, but when using SFP fiber module, it does. Configuration is same for every trunk port. I use these switches for small AoIP systems only and those have been configured for that. Other bizarre thing is that audio (and few other things like discovery etc) does not work via CAT, but with fiber they do. Also one thing is that it has been working earlier via CAT also. I have tried to reset and load configurations back to switches, but nothing changes. Does anyone have idea what I should try next? If I remember correctly, I might have done configurations of ports 26 and 28 via wizard. Could that have some kind effect? If you ask why, I´m more of a sound guy so I wanted to see if my manual config would differ from wizards. When they both did work, I left it alone. Configs are below.

config-file-header
UT24SWITCH01
v2.4.0.94 / RTESLA2.4_930_181_045
CLI v1.0
file SSD indicator plaintext
@
!
unit-type-control-start
unit-type unit 1 network gi uplink none
unit-type-control-end
!
bridge multicast filtering
vlan database
vlan 10,20
exit
voice vlan oui-table add 0001e3 Siemens_AG_phone________
voice vlan oui-table add 00036b Cisco_phone_____________
voice vlan oui-table add 00096e Avaya___________________
voice vlan oui-table add 000fe2 H3C_Aolynk______________
voice vlan oui-table add 0060b9 Philips_and_NEC_AG_phone
voice vlan oui-table add 00d01e Pingtel_phone___________
voice vlan oui-table add 00e075 Polycom/Veritel_phone___
voice vlan oui-table add 00e0bb 3Com_phone______________
no errdisable recovery cause link-flapping
no eee enable
ip dhcp server
ip dhcp pool network AoIP
address low 192.168.102.101 high 192.168.102.200 255.255.255.0
lease 0 0 5
domain-name rut.com
default-router 192.168.102.1
dns-server 8.8.8.8
exit
bonjour interface range vlan 1
qos map dscp-queue 0 to 1
qos map dscp-queue 9 to 1
qos map dscp-queue 10 to 1
qos map dscp-queue 11 to 1
qos map dscp-queue 12 to 1
qos map dscp-queue 13 to 1
qos map dscp-queue 14 to 1
qos map dscp-queue 15 to 1
qos map dscp-queue 16 to 1
qos map dscp-queue 17 to 1
qos map dscp-queue 18 to 1
qos map dscp-queue 19 to 1
qos map dscp-queue 20 to 1
qos map dscp-queue 21 to 1
qos map dscp-queue 22 to 1
qos map dscp-queue 23 to 1
qos map dscp-queue 24 to 1
qos map dscp-queue 25 to 1
qos map dscp-queue 26 to 1
qos map dscp-queue 27 to 1
qos map dscp-queue 28 to 1
qos map dscp-queue 29 to 1
qos map dscp-queue 30 to 1
qos map dscp-queue 31 to 1
qos map dscp-queue 32 to 1
qos map dscp-queue 33 to 1
qos map dscp-queue 34 to 5
qos map dscp-queue 35 to 1
qos map dscp-queue 36 to 1
qos map dscp-queue 37 to 1
qos map dscp-queue 38 to 1
qos map dscp-queue 39 to 1
qos map dscp-queue 40 to 1
qos map dscp-queue 41 to 1
qos map dscp-queue 42 to 1
qos map dscp-queue 43 to 1
qos map dscp-queue 44 to 1
qos map dscp-queue 45 to 1
qos map dscp-queue 46 to 7
qos map dscp-queue 47 to 1
qos map dscp-queue 48 to 1
qos map dscp-queue 49 to 1
qos map dscp-queue 50 to 1
qos map dscp-queue 51 to 1
qos map dscp-queue 52 to 1
qos map dscp-queue 53 to 1
qos map dscp-queue 54 to 1
qos map dscp-queue 55 to 1
qos map dscp-queue 56 to 8
qos map dscp-queue 57 to 1
qos map dscp-queue 58 to 1
qos map dscp-queue 59 to 1
qos map dscp-queue 60 to 1
qos map dscp-queue 61 to 1
qos map dscp-queue 62 to 1
qos map dscp-queue 63 to 1
hostname UT24SWITCH01
username UT24SWITCH01 password encrypted ca7d6cefecd2e6ccf019d179c5a27927e56e3e89 privilege 15
!
interface vlan 1
no ip address dhcp
bridge multicast mode ipv4-group
bridge multicast ipv6 mode ip-group
ip igmp version 2
ip igmp query-interval 60
!
interface vlan 10
name AoIP
ip address 192.168.102.2 255.255.255.0
bridge multicast mode ipv4-group
bridge multicast ipv6 mode ip-group
ip igmp version 2
ip igmp query-interval 60
!
interface vlan 20
name Misc
bridge multicast mode ipv4-group
bridge multicast ipv6 mode ip-group
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet1
switchport access vlan 10
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet2
switchport access vlan 10
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet3
switchport access vlan 10
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet4
switchport access vlan 10
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet5
switchport access vlan 10
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet6
switchport access vlan 10
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet7
switchport access vlan 10
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet8
switchport access vlan 10
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet9
switchport access vlan 10
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet10
switchport access vlan 10
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet11
spanning-tree link-type point-to-point
switchport access vlan 10
switchport trunk native vlan 10
switchport trunk allowed vlan remove 20
macro description switch
!next command is internal.
macro auto smartport dynamic_type switch
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet12
switchport access vlan 10
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet13
switchport access vlan 10
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet14
switchport access vlan 10
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet15
switchport access vlan 10
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet16
switchport access vlan 10
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet17
switchport access vlan 10
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet18
switchport access vlan 10
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet19
switchport access vlan 10
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet20
switchport access vlan 10
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet21
switchport access vlan 10
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet22
switchport access vlan 10
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet23
switchport access vlan 10
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet24
switchport access vlan 20
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet25
switchport access vlan 20
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet26
spanning-tree link-type point-to-point
switchport mode trunk
switchport access vlan 20
macro description switch
!next command is internal.
macro auto smartport dynamic_type switch
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet27
switchport mode trunk
switchport access vlan 10
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet28
spanning-tree link-type point-to-point
switchport mode trunk
switchport access vlan 10
macro description switch
!next command is internal.
macro auto smartport dynamic_type switch
ip igmp version 2
ip igmp query-interval 60
!
exit
banner login 
YLE Radion ulkotuotannon AoIP-kytkin

UT24SWITCH01

banner exec 
Tere tulemast.

ip igmp snooping
ip igmp snooping vlan 1
ip igmp snooping vlan 10
ip igmp snooping vlan 20
ip igmp snooping vlan 10 static 224.0.0.230 interface gi1-23,gi27-28
ip igmp snooping vlan 10 static 224.0.0.231 interface gi1-23,gi27-28
ip igmp snooping vlan 10 static 224.0.0.232 interface gi1-23,gi27-28
ip igmp snooping vlan 10 static 224.0.0.251 interface gi1-23,gi27-28
ip igmp snooping vlan 10 static 224.0.1.129 interface gi1-23,gi27-28
ip igmp snooping vlan 10 static 224.0.1.130 interface gi1-23,gi27-28
ip igmp snooping vlan 10 static 224.0.1.131 interface gi1-23,gi27-28
ip igmp snooping vlan 10 static 224.0.1.132 interface gi1-23,gi27-28
ip igmp snooping vlan 10 static 239.255.0.0
ip igmp snooping vlan 10 querier
no ip dhcp snooping verify

---------------------------------------------------------------------------------------

config-file-header
UT8SWITCH01
v2.5.0.83 / RTESLA2.5_930_364_091
CLI v1.0
file SSD indicator plaintext
@
!
unit-type-control-start
unit-type unit 1 network gi uplink none
unit-type-control-end
!
bridge multicast filtering
vlan database
vlan 10,20
exit
voice vlan oui-table add 0001e3 Siemens_AG_phone________
voice vlan oui-table add 00036b Cisco_phone_____________
voice vlan oui-table add 00096e Avaya___________________
voice vlan oui-table add 000fe2 H3C_Aolynk______________
voice vlan oui-table add 0060b9 Philips_and_NEC_AG_phone
voice vlan oui-table add 00d01e Pingtel_phone___________
voice vlan oui-table add 00e075 Polycom/Veritel_phone___
voice vlan oui-table add 00e0bb 3Com_phone______________
no eee enable
ip dhcp excluded-address 192.168.102.59 192.168.102.59
bonjour interface range vlan 1
qos map dscp-queue 0 to 1
qos map dscp-queue 9 to 1
qos map dscp-queue 10 to 1
qos map dscp-queue 11 to 1
qos map dscp-queue 12 to 1
qos map dscp-queue 13 to 1
qos map dscp-queue 14 to 1
qos map dscp-queue 15 to 1
qos map dscp-queue 16 to 1
qos map dscp-queue 17 to 1
qos map dscp-queue 18 to 1
qos map dscp-queue 19 to 1
qos map dscp-queue 20 to 1
qos map dscp-queue 21 to 1
qos map dscp-queue 22 to 1
qos map dscp-queue 23 to 1
qos map dscp-queue 24 to 1
qos map dscp-queue 25 to 1
qos map dscp-queue 26 to 1
qos map dscp-queue 27 to 1
qos map dscp-queue 28 to 1
qos map dscp-queue 29 to 1
qos map dscp-queue 30 to 1
qos map dscp-queue 31 to 1
qos map dscp-queue 32 to 1
qos map dscp-queue 33 to 1
qos map dscp-queue 34 to 5
qos map dscp-queue 35 to 1
qos map dscp-queue 36 to 1
qos map dscp-queue 37 to 1
qos map dscp-queue 38 to 1
qos map dscp-queue 39 to 1
qos map dscp-queue 40 to 1
qos map dscp-queue 41 to 1
qos map dscp-queue 42 to 1
qos map dscp-queue 43 to 1
qos map dscp-queue 44 to 1
qos map dscp-queue 45 to 1
qos map dscp-queue 46 to 7
qos map dscp-queue 47 to 1
qos map dscp-queue 48 to 1
qos map dscp-queue 49 to 1
qos map dscp-queue 50 to 1
qos map dscp-queue 51 to 1
qos map dscp-queue 52 to 1
qos map dscp-queue 53 to 1
qos map dscp-queue 54 to 1
qos map dscp-queue 55 to 1
qos map dscp-queue 56 to 8
qos map dscp-queue 57 to 1
qos map dscp-queue 58 to 1
qos map dscp-queue 59 to 1
qos map dscp-queue 60 to 1
qos map dscp-queue 61 to 1
qos map dscp-queue 62 to 1
qos map dscp-queue 63 to 1
hostname UT8SWITCH01
username UT8SWITCH01 password encrypted ca7d6cefecd2e6ccf019d179c5a27927e56e3e89 privilege 15
!
interface vlan 1
no ip address dhcp
bridge multicast mode ipv4-group
bridge multicast ipv6 mode ip-group
ip igmp version 2
ip igmp query-interval 60
!
interface vlan 10
name AoIP
ip address 192.168.102.4 255.255.255.0
bridge multicast mode ipv4-group
bridge multicast ipv6 mode ip-group
ip igmp version 2
ip igmp query-interval 60
!
interface vlan 20
name Misc
bridge multicast mode ipv4-group
bridge multicast ipv6 mode ip-group
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet1
switchport access vlan 10
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet2
switchport access vlan 10
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet3
switchport access vlan 10
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet4
switchport access vlan 10
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet5
switchport access vlan 10
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet6
switchport access vlan 10
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet7
switchport access vlan 10
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet8
switchport access vlan 10
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet9
switchport access vlan 20
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet10
spanning-tree link-type point-to-point
switchport mode trunk
macro description switch
!next command is internal.
macro auto smartport dynamic_type switch
ip igmp version 2
ip igmp query-interval 60
!
exit
banner login 
YLE Radion ulkotuotannon AoIP kytkin.

UT8SWITCH01

banner exec 
Tere tulemast.

ip igmp snooping
ip igmp snooping vlan 1
ip igmp snooping vlan 10
ip igmp snooping vlan 20
ip igmp snooping vlan 10 static 224.0.0.230 interface gi1-8,gi10
ip igmp snooping vlan 10 static 224.0.0.231 interface gi1-8,gi10
ip igmp snooping vlan 10 static 224.0.0.232 interface gi1-8,gi10
ip igmp snooping vlan 10 static 224.0.0.251 interface gi1-8,gi10
ip igmp snooping vlan 10 static 224.0.1.129 interface gi1-8,gi10
ip igmp snooping vlan 10 static 224.0.1.130 interface gi1-8,gi10
ip igmp snooping vlan 10 static 224.0.1.131 interface gi1-8,gi10
ip igmp snooping vlan 10 static 224.0.1.132 interface gi1-8,gi10
ip igmp snooping vlan 10 static 239.255.0.0
no ip igmp snooping querier

--------------------------------------------------------------------------------

config-file-header
UT8SWITCH02
v2.5.0.83 / RTESLA2.5_930_364_091
CLI v1.0
file SSD indicator plaintext
@
!
unit-type-control-start
unit-type unit 1 network gi uplink none
unit-type-control-end
!
bridge multicast filtering
vlan database
vlan 10,20
exit
voice vlan oui-table add 0001e3 Siemens_AG_phone________
voice vlan oui-table add 00036b Cisco_phone_____________
voice vlan oui-table add 00096e Avaya___________________
voice vlan oui-table add 000fe2 H3C_Aolynk______________
voice vlan oui-table add 0060b9 Philips_and_NEC_AG_phone
voice vlan oui-table add 00d01e Pingtel_phone___________
voice vlan oui-table add 00e075 Polycom/Veritel_phone___
voice vlan oui-table add 00e0bb 3Com_phone______________
no eee enable
ip dhcp excluded-address 192.168.102.59 192.168.102.59
bonjour interface range vlan 1
qos map dscp-queue 0 to 1
qos map dscp-queue 9 to 1
qos map dscp-queue 10 to 1
qos map dscp-queue 11 to 1
qos map dscp-queue 12 to 1
qos map dscp-queue 13 to 1
qos map dscp-queue 14 to 1
qos map dscp-queue 15 to 1
qos map dscp-queue 16 to 1
qos map dscp-queue 17 to 1
qos map dscp-queue 18 to 1
qos map dscp-queue 19 to 1
qos map dscp-queue 20 to 1
qos map dscp-queue 21 to 1
qos map dscp-queue 22 to 1
qos map dscp-queue 23 to 1
qos map dscp-queue 24 to 1
qos map dscp-queue 25 to 1
qos map dscp-queue 26 to 1
qos map dscp-queue 27 to 1
qos map dscp-queue 28 to 1
qos map dscp-queue 29 to 1
qos map dscp-queue 30 to 1
qos map dscp-queue 31 to 1
qos map dscp-queue 32 to 1
qos map dscp-queue 33 to 1
qos map dscp-queue 34 to 5
qos map dscp-queue 35 to 1
qos map dscp-queue 36 to 1
qos map dscp-queue 37 to 1
qos map dscp-queue 38 to 1
qos map dscp-queue 39 to 1
qos map dscp-queue 40 to 1
qos map dscp-queue 41 to 1
qos map dscp-queue 42 to 1
qos map dscp-queue 43 to 1
qos map dscp-queue 44 to 1
qos map dscp-queue 45 to 1
qos map dscp-queue 46 to 7
qos map dscp-queue 47 to 1
qos map dscp-queue 48 to 1
qos map dscp-queue 49 to 1
qos map dscp-queue 50 to 1
qos map dscp-queue 51 to 1
qos map dscp-queue 52 to 1
qos map dscp-queue 53 to 1
qos map dscp-queue 54 to 1
qos map dscp-queue 55 to 1
qos map dscp-queue 56 to 8
qos map dscp-queue 57 to 1
qos map dscp-queue 58 to 1
qos map dscp-queue 59 to 1
qos map dscp-queue 60 to 1
qos map dscp-queue 61 to 1
qos map dscp-queue 62 to 1
qos map dscp-queue 63 to 1
hostname UT8SWITCH02
username UT8SWITCH02 password encrypted ca7d6cefecd2e6ccf019d179c5a27927e56e3e89 privilege 15
!
interface vlan 1
no ip address dhcp
bridge multicast mode ipv4-group
bridge multicast ipv6 mode ip-group
ip igmp version 2
ip igmp query-interval 60
!
interface vlan 10
name AoIP
ip address 192.168.102.5 255.255.255.0
bridge multicast mode ipv4-group
bridge multicast ipv6 mode ip-group
ip igmp version 2
ip igmp query-interval 60
!
interface vlan 20
name Misc
bridge multicast mode ipv4-group
bridge multicast ipv6 mode ip-group
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet1
switchport access vlan 10
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet2
switchport access vlan 10
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet3
switchport access vlan 10
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet4
switchport access vlan 10
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet5
switchport access vlan 10
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet6
switchport access vlan 10
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet7
switchport access vlan 10
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet8
switchport access vlan 10
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet9
switchport access vlan 20
ip igmp version 2
ip igmp query-interval 60
!
interface GigabitEthernet10
spanning-tree link-type point-to-point
switchport mode trunk
macro description switch
!next command is internal.
macro auto smartport dynamic_type switch
ip igmp version 2
ip igmp query-interval 60
!
exit
banner login 
YLE Radion ulkotuotannon AoIP kytkin.

UT8SWITCH02


banner exec 
Tere tulemast.

ip igmp snooping
ip igmp snooping vlan 1
ip igmp snooping vlan 10
ip igmp snooping vlan 20
ip igmp snooping vlan 10 static 224.0.0.230 interface gi1-8,gi10
ip igmp snooping vlan 10 static 224.0.0.231 interface gi1-8,gi10
ip igmp snooping vlan 10 static 224.0.0.232 interface gi1-8,gi10
ip igmp snooping vlan 10 static 224.0.0.251 interface gi1-8,gi10
ip igmp snooping vlan 10 static 224.0.1.129 interface gi1-8,gi10
ip igmp snooping vlan 10 static 224.0.1.130 interface gi1-8,gi10
ip igmp snooping vlan 10 static 224.0.1.131 interface gi1-8,gi10
ip igmp snooping vlan 10 static 224.0.1.132 interface gi1-8,gi10
ip igmp snooping vlan 10 static 239.255.0.0
no ip igmp snooping querier

[pieterh]

>>> two RJ45 and two SFP module slots <<<

are you sure these are different ports ?
I suggest these are "dual personality" ports which means that when you have inserted an SFP then the corresponding copper port is disabled
did you remove the SFP when using the copper port?

[JarnoValkonen38927]

Hi!

Thanks for your answer. There is four SFP slots and two of those are those kind of dual personality ports and other two are only SFP ports without copper next to it. So that should not be the case.

[marce1000 · Accepted solution]

   - Try to disable any auto smartport features globally with : SG350(config)#macro auto  disabled 

 M.

[JarnoValkonen38927]

Hi!

Thank you for advice. I tried it earlier, but then everything stopped working, so I returned previous state of things. Now I tried it again and after that noticed that trunk ports changed into access ports. I changed them back to trunks. Now DHCP seems to work, but audio is not and device discovery (mDNS in this system). Can STP, that seems to be on by default, have effect on these things? I forgot to mention that I can access switches webGUI and ping all the devices on network and everything seems to work via trunk ports 27/28 that use SFP modules but not with ports 25/26 using CAT (audio is not but DHCP is). 

[JarnoValkonen38927]

I just noticed that ports 25/26 have switchport access vlan 20 (those port do not work properly).  And ports 27/28 have switchport access vlan 10 (these work as they should). Could that be the fault?