SG350XG Stack Failover

benjamin.rickert11 · ‎06-30-2017

Hello everybody

Currently I'm rebuilding our distribution & Access Layer.

We got 2x SG350XG 24F for the distribution layer and 3x Cisco 2960X for access.

The SG350XG are configured as a Stack.

Portchannels are configured with one port of Unit 1 and one of Unit 2 each as a uplink to the access switches.

Disconnecting single links to the access switches doesnt cause downtimes. Its working as expected except for the case of a unit beeing down.

If the stackmaster or slave goes offline, it takes approx one minute for the traffic to flow again and thats too long in my opinion. In this case every port channel from the working device goes offline too.

Have you any hint for me what could be wrong?

Thats my configuration:

config-file-header
mu-sw-dist01
v2.2.0.63 / RTESLA2.2_810_156_020
CLI v1.0
file SSD indicator encrypted
@
ssd-control-start
ssd config
ssd file passphrase control unrestricted
no ssd file integrity control
ssd-control-end cb0a3fdb1f3a1af4e4430033719968c0
!
!
unit-type-control-start
unit-type unit 1 network te uplink none
unit-type unit 2 network te uplink none
unit-type unit 3 network te uplink none
unit-type unit 4 network te uplink none
unit-type-control-end
!
vlan database
vlan 100,200
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______________
bonjour interface range oob
hostname mu-sw-dist01
username network password encrypted df267df9598f14809a9a534660168f3680330c78 privilege 15
ip ssh server
snmp-server location "Serverraum Rack 4"
snmp-server contact "
sntp server 172.28.65.1 poll
ip name-server 172.28.65.1
!
interface vlan 100
name "VLAN100"
ip address 172.28.87.254 255.255.255.0
!
interface vlan 200
name "VLAN200"
ip address 172.28.64.1 255.255.240.0
!
interface TengigabitEthernet1/0/1
description "Uplink mu-sw-01 Te1/0/1"
channel-group 1 mode on
!
interface TengigabitEthernet1/0/2
description "Uplink mu-sw-02 Te1/0/1"
channel-group 2 mode on
macro description no_switch
!
interface TengigabitEthernet1/0/3
description "Uplink mu-sw-03 Te1/0/1"
channel-group 3 mode on
!
interface TengigabitEthernet2/0/1
description "Uplink mu-sw-01 Te1/0/2"
channel-group 1 mode on
macro description no_switch
!
interface TengigabitEthernet2/0/2
description "Uplink mu-sw-02 Te1/0/2"
channel-group 2 mode on
macro description no_switch
!
interface TengigabitEthernet2/0/3
description "Uplink mu-sw-03 Te1/0/2"
channel-group 3 mode on
!
interface Port-Channel1
switchport mode trunk
macro description no_switch
!
interface Port-Channel2
switchport mode trunk
macro description no_switch
!
interface Port-Channel3
switchport mode trunk
macro description no_switch
!
interface oob
no ip address dhcp
!
exit
macro auto disabled

Thank you in advance

BR

Diana Karolina Rojas · ‎07-03-2017

Hello!

Can you please provide the output of the "show logging" and "show switch" commands?

---Do not forget to rate useful answers---

Regards,

benjamin.rickert11 · ‎07-12-2017

Hello

Thanks for your response and sorry for my late answer.

I have to correct my first statement, if the slave goes down, connections are not interrupted, if I then bring up the master, and kill the slave, everything works fine also.

But If I kill the master first, bring it back up and then kill the slave, the behaviour mentioned above can be witnessed. What I also noticed is that if the master is back up, the master led on the slave is still on (while on master it is not).

Heres the log:

12-Jul-2017 16:53:54 :%STP-W-PORTSTATUS: Po3: STP status Forwarding

12-Jul-2017 16:53:54 :%STP-W-PORTSTATUS: Po2: STP status Forwarding

12-Jul-2017 16:53:54 :%STP-W-PORTSTATUS: Po1: STP status Forwarding

12-Jul-2017 16:53:54 :%LINK-I-Up: loopback1

12-Jul-2017 16:53:54 :%LINK-W-Down: oob

12-Jul-2017 16:53:30 :%LINK-I-Up: Po3

12-Jul-2017 16:53:30 :%LINK-I-Up: Po2

12-Jul-2017 16:53:30 :%LINK-I-Up: Vlan 1000

12-Jul-2017 16:53:30 :%LINK-I-Up: Vlan 900

12-Jul-2017 16:53:30 :%LINK-I-Up: Vlan 800

12-Jul-2017 16:53:30 :%LINK-I-Up: Vlan 700

12-Jul-2017 16:53:30 :%LINK-I-Up: Vlan 600

12-Jul-2017 16:53:30 :%LINK-I-Up: Vlan 500

12-Jul-2017 16:53:30 :%LINK-I-Up: Vlan 400

12-Jul-2017 16:53:30 :%LINK-I-Up: Vlan 200

12-Jul-2017 16:53:30 :%LINK-I-Up: Vlan 100

12-Jul-2017 16:53:30 :%LINK-I-Up: Vlan 1

12-Jul-2017 16:53:30 :%LINK-I-Up: Po1

12-Jul-2017 16:53:30 :%LINK-I-Up: te1/0/3

12-Jul-2017 16:53:30 :%TRUNK-I-PORTADDED: Port te1/0/3 added to Po3

12-Jul-2017 16:53:30 :%TRUNK-I-PORTADDED: Port te1/0/2 added to Po2

12-Jul-2017 16:53:30 :%LINK-I-Up: te1/0/2

12-Jul-2017 16:53:30 :%LINK-I-Up: te1/0/1

12-Jul-2017 16:53:30 :%TRUNK-I-PORTADDED: Port te1/0/1 added to Po1

12-Jul-2017 16:53:30 :%LINK-N-PortConfRecover: Port te1/0/5 configured to speed 1G

12-Jul-2017 16:53:30 :%LINK-N-PortConfRecover: Port te1/0/4 configured to speed 1G

12-Jul-2017 16:53:30 :%LINK-W-Down: Po3

12-Jul-2017 16:53:30 :%LINK-W-Down: Po2

12-Jul-2017 16:53:30 :%LINK-W-Down: Po1

12-Jul-2017 16:53:30 :%LINK-W-Down: te1/0/22

12-Jul-2017 16:53:29 :%LINK-W-Down: te1/0/21

12-Jul-2017 16:53:27 :%LINK-W-Down: te1/0/20

12-Jul-2017 16:53:26 :%LINK-W-Down: te1/0/19

12-Jul-2017 16:53:25 :%LINK-W-Down: te1/0/18

12-Jul-2017 16:53:23 :%LINK-W-Down: te1/0/17

12-Jul-2017 16:53:22 :%LINK-W-Down: te1/0/16

12-Jul-2017 16:53:21 :%LINK-W-Down: te1/0/15

12-Jul-2017 16:53:19 :%LINK-W-Down: te1/0/14

12-Jul-2017 16:53:18 :%LINK-W-Down: te1/0/13

12-Jul-2017 16:53:17 :%LINK-W-Down: te1/0/12

12-Jul-2017 16:53:15 :%LINK-W-Down: te1/0/11

12-Jul-2017 16:53:14 :%NSFP-I-SFPGibicDetected: te1/0/11 SFP port is present, module type - 10G BASE-SR

12-Jul-2017 16:53:14 :%LINK-W-Down: te1/0/10

12-Jul-2017 16:53:13 :%NSFP-I-SFPGibicDetected: te1/0/10 SFP port is present, module type - 10G BASE-SR

12-Jul-2017 16:53:12 :%LINK-W-Down: te1/0/9

12-Jul-2017 16:53:12 :%NSFP-I-SFPGibicDetected: te1/0/9 SFP port is present, module type - 10G BASE-SR

12-Jul-2017 16:53:11 :%LINK-W-Down: te1/0/8

12-Jul-2017 16:53:10 :%LINK-W-Down: te1/0/7

12-Jul-2017 16:53:08 :%LINK-W-Down: te1/0/6

12-Jul-2017 16:53:07 :%LINK-W-Down: te1/0/5

12-Jul-2017 16:53:07 :%LINK-N-PortConfRecover: Port te1/0/5 configured to speed 1G

12-Jul-2017 16:53:07 :%NSFP-I-SFPGibicDetected: te1/0/5 SFP port is present, module type - 1000BASE-SX

12-Jul-2017 16:53:06 :%LINK-W-Down: te1/0/4

12-Jul-2017 16:53:05 :%NSFP-I-SFPGibicDetected: te1/0/4 SFP port is present, module type - 1000BASE-SX

12-Jul-2017 16:53:04 :%LINK-W-Down: te1/0/3

12-Jul-2017 16:53:04 :%2SWTRUNK-I-TRNKPORTPARAM: auto-negotiation/adv. capabilities of port te1/0/3 differ from auto-negotiation/adv. capabilities of Po3

12-Jul-2017 16:53:03 :%LINK-W-Down: te1/0/2

12-Jul-2017 16:53:03 :%2SWTRUNK-I-TRNKPORTPARAM: auto-negotiation/adv. capabilities of port te1/0/2 differ from auto-negotiation/adv. capabilities of Po2

12-Jul-2017 16:53:03 :%LINK-W-Down: te1/0/1

12-Jul-2017 16:53:03 :%2SWTRUNK-I-TRNKPORTPARAM: auto-negotiation/adv. capabilities of port te1/0/1 differ from auto-negotiation/adv. capabilities of Po1

12-Jul-2017 16:53:02 :%NSFP-I-SFPGibicDetected: te1/0/3 SFP port is present, module type - 10G BASE-SR

12-Jul-2017 16:53:02 :%NSFP-I-SFPGibicDetected: te1/0/2 SFP port is present, module type - 10G BASE-SR

12-Jul-2017 16:53:02 :%LINK-W-PORT_SUSPENDED: Port te1/0/2 suspended by link-flapping


12-Jul-2017 16:52:52 :%NSFP-I-SFPGibicDetected: te1/0/1 SFP port is present, module type - 10G BASE-SR

12-Jul-2017 16:52:52 :%LINK-W-PORT_SUSPENDED: Port te1/0/1 suspended by link-flapping


12-Jul-2017 16:52:42 :%MLDP-I-MASTER: Switching to the Master Mode.

12-Jul-2017 16:52:20 :%MLDP-W-ABORT: Connection to Unit 2 is aborted due to Stack Management notification.

12-Jul-2017 16:52:20 :%Stack-I-STCK-MSTR-SWTCHOVR: Master switchover: unit 1 is now master.

12-Jul-2017 16:52:19 :%CSCDLAG-W-DOWN: Stack port te24 operational status is Down

12-Jul-2017 16:52:19 :%CSCDLAG-W-DOWN: Stack port te23 operational status is Down

show switch is not outputting valuable data on this model.

Thanks for you help.