HP 2920 switch stack issue

[JMBates]

Hello all,

 

I was wondering if someone could shed some light on this perculiar issue I am having. I have 2x 2920s in a stack that appears to be having two issues.

Firstly, when I do a "show run", only ports 1/1-1/24 are shown and not the remaining 48 ports on the secondary switch. However, if I am to run the command "show spanning-tree" all ports are shown.

Secondly, we are having an issue when this switch stack is connected directly to another single switch on our campus, they will not communicate with each other. If I put an unmanaged switch between the switch stack and the single switch, they are then able to communicate.

I am unsure as to whether the first issue directly affects the second issue or not.

 

Any help would be appreciative!

 

Thanks.

[Wave9_Andy]

Hi there

 

Does sound odd. Are they both running the same firmware versions or is there a mis-match?

 

Could you provide a bit more info (PM if you like) showing the state of the stack (Show Stack and Show Stack Member) and I will get one our chaps to have a look.

 

Bit difficult to help without getting hands on with the kit but happy to see if we can help in any way.

 

Andy

 

 

[JMBates]

Hello Wave9_Andy,

 

Please find below the "show run", "show stack", "show stack mem 1", "show stack mem 2" and "show version" outputs of the switch stack. I hope this helps you understand the issue a little bit better. Let me know if you need any further outputs.

 

Many thanks!

 

; hpStack_WB Configuration Editor; Created on release #WB.15.16.0008
; Ver #06:0c.fc.f3.ff.37.2d:e0

stacking
  member 1 type "J9727A" mac-address d0bf9c-d44dc0
  member 1 priority 201
  member 2 type "J9729A" mac-address 3ca82a-4daf00
  member 2 priority 200
  exit
hostname "YA-SWITCH-02"
sntp server priority 1 10.72.254.10
sntp server priority 2 10.72.254.124
no telnet-server
time daylight-time-rule middle-europe-and-portugal
no web-management
web-management ssl
ip dns server-address priority 1 10.72.254.10
ip dns server-address priority 2 10.72.254.124
ip route 0.0.0.0 0.0.0.0 10.50.1.1
interface 1/1
  name "PC PORT"
  exit
interface 1/2
  name "PC PORT"
  exit
interface 1/3
  name "PC PORT"
  exit
interface 1/4
  name "PC PORT"
  exit
interface 1/5
  name "PC PORT"
  exit
interface 1/6
  name "PC PORT"
  exit
interface 1/7
  name "PC PORT"
  exit
interface 1/8
  name "PC PORT"
  exit
interface 1/9
  name "PC PORT"
  exit
interface 1/10
  name "PC PORT"
  exit
interface 1/11
  name "PC PORT"
  exit
interface 1/12
  name "PC PORT"
  exit
interface 1/13
  name "PC PORT"
  exit
interface 1/14
  name "PC PORT"
  exit
interface 1/15
  name "PC PORT"
  exit
interface 1/16
  name "PC PORT"
  exit
interface 1/17
  name "PC PORT"
  exit
interface 1/18
  name "PC PORT"
  exit
interface 1/19
  name "PC PORT"
  exit
interface 1/20
  name "PC PORT"
  exit
interface 1/21
  name "PC PORT"
  exit
interface 1/22
  name "PC PORT"
  exit
interface 1/23
  name "PC PORT"
  exit
interface 1/24
  name "*UPLINK TO YA-SWITCH-01*"
  exit
snmp-server community "public" unrestricted
oobm
  ip address dhcp-bootp
  member 1
     ip address dhcp-bootp
     exit
  member 2
     ip address dhcp-bootp
     exit
  exit
lldp admin-status 1/1-1/24,2/1-2/48 disable
no lldp config 1/1-1/24,2/1-2/48 medTlvEnable network_policy
vlan 1
  name "DEFAULT_VLAN"
  untagged 1/1-1/24,1/A1-1/A2,1/B1-1/B2,2/1-2/48,2/A1-2/A2,2/B1-2/B2
  ip address 10.50.1.253 255.255.0.0
  ip helper-address 10.72.254.10
  exit
vlan 11
  name "VLAN11"
  tagged 1/1-1/24,2/1-2/48
  no ip address
  ip helper-address 10.72.254.10
  voice
  exit
vlan 12
  name "STAFF_WIRELESS"
  tagged 1/1-1/23,2/1-2/48
  no ip address
  exit
vlan 13
  name "VLAN13"
  tagged 1/1-1/23,2/1-2/48
  no ip address
  exit
vlan 14
  name "GYM_WIRELESS"
  tagged 1/1-1/23,2/1-2/48
  no ip address
  exit
vlan 15
  name "BMS"
  tagged 1/1-1/23,2/1-2/48
  no ip address
  exit
vlan 16
  name "MANAGEMENT"
  tagged 1/1-1/23,2/1-2/48
  ip address 10.150.6.2 255.255.255.0
  exit
vlan 17
  name "*UNUSED 17*"
  tagged 1/1-1/23,2/1-2/48
  no ip address
  exit
vlan 18
  name "*UNUSED 18*"
  tagged 1/1-1/23,2/1-2/48
  no ip address
  exit
vlan 19
  name "*UNUSED 19*"
  tagged 1/1-1/23,2/1-2/48
  no ip address
  exit
vlan 20
  name "*UNUSED 20*"
  tagged 1/1-1/23,2/1-2/48
  no ip address
  exit
spanning-tree
no tftp server
no autorun
no dhcp config-file-update
no dhcp image-file-update
password manager
password operator

 

Stack ID         : 0100d0bf-9cd44dc0
MAC Address      : d0bf9c-d44de3
Stack Topology   : Ring
Stack Status     : Active
Split Policy     : One-Fragment-Up
Uptime           : 7d 17h 54m
Software Version : WB.15.16.0008

Mbr
ID  Mac Address   Model                                  Pri Status
--- ------------- -------------------------------------- --- ---------------
1   d0bf9c-d44dc0 HP J9727A 2920-24G-PoE+ Switch         201 Commander
2   3ca82a-4daf00 HP J9729A 2920-48G-POE+ Switch         200 Standby

 

YA-SWITCH-02# show stack mem 1

Member ID        : 1
Mac Address      : d0bf9c-d44dc0
Type             : J9727A
Model            : HP J9727A 2920-24G-PoE+ Switch
Priority         : 201
Status           : Commander
ROM Version      : WB.15.05
Serial Number    : SG52FLXFFM
Uptime           : 7d 17h 55m
CPU Utilization  : 0%
Memory - Total   : 165,437,952 bytes
Free             : 79,473,840 bytes
Stack Ports -
#1 : Active, Peer member 2
#2 : Active, Peer member 2

 

YA-SWITCH-02# show stack mem 2

Member ID        : 2
Mac Address      : 3ca82a-4daf00
Type             : J9729A
Model            : HP J9729A 2920-48G-POE+ Switch
Priority         : 200
Status           : Standby
ROM Version      : WB.15.05
Serial Number    : SG54FLZ2QJ
Uptime           : 7d 17h 52m
CPU Utilization  : 2%
Memory - Total   : 165,437,952 bytes
Free             : 81,270,528 bytes
Stack Ports -
#1 : Active, Peer member 1
#2 : Active, Peer member 1

 

YA-SWITCH-02# show ver
Image stamp:    /ws/swbuildm/rel_orlando_qaoff/code/build/anm(swbuildm_rel_orlando_qaoff_rel_orlando)
               Apr 12 2015 19:33:36
               WB.15.16.0008
               70
Boot Image:     Secondary

[Wave9_Andy]

Well, one of our clever chaps has spent an hour or so investigating and has found nothing to explain the oddness around your semi-visible ports. The output indicates your stack is working and appears to be performing as expected.

 

Apologies, we can only suggest you raise a case with HP.

[Steve21]

Does the second switch have any custom config on? By default "show run" will ignore the default settings on switches and only show modifications a lot of the time. As in I take it it's not a new one you just stacked as it wouldn't show anything.

 

Steve

[JMBates]

Well, one of our clever chaps has spent an hour or so investigating and has found nothing to explain the oddness around your semi-visible ports. The output indicates your stack is working and appears to be performing as expected.

 

Apologies, we can only suggest you raise a case with HP.

 

I really appreciate yours and your clever chap's time on this. I have raised a ticket with HP also and they seem pretty stumped also!

[JMBates]

Does the second switch have any custom config on? By default "show run" will ignore the default settings on switches and only show modifications a lot of the time. As in I take it it's not a new one you just stacked as it wouldn't show anything.

 

Steve

 

Essentially, this is the process of how I configured the stack.

 

Both switches were taken out of the boxes.

Stacking modules fitted to the back of the switch.

Stacking cables fitted port 1 to port 1 and port 2 to port 2.

Switches powered on and configuration applied line-by-line.

 

I did this process on three stacks and only one appears to have taken. Would what you are suggesting be that we dismantle the stack, wipe the configs and apply two separate configs (i.e config switch 1 with its interfaces, VLANs etc, config switch 2 with its interfaces and same VLANs) write memory and power down THEN fit the stacking modules and cables to see that the configs merge?

[JMBates]

Does the second switch have any custom config on? By default "show run" will ignore the default settings on switches and only show modifications a lot of the time. As in I take it it's not a new one you just stacked as it wouldn't show anything.

 

Steve

 

Steve, I think you may be a genius.

 

I will firstly hold my hands up and say that I am a Cisco guy and have not touched HP prior to this. Anyway, I simply applied a name/description to the port, which in HP world is the only actual config I have applied to the interface directly and now the port has automagically appeared in the running config. Still baffles me that HP output the running configuration this way in comparison to Cisco where any kind of config (VLAN, STP or a another) is visible under the interface.

 

Anyway, it was me being a bit of a dumbass and I have now made the "missing" interfaces now appear in the show run output!

[Steve21]

What I mean is if you haven't configured anything on the second switch (e.g. VLAN//Port settings) it won't show in the running config as it's not a running config.

 

Example from our Dell switches:

 

interface Gi2/0/4
switchport mode general
switchport general allowed vlan add 10,20 tagged
exit
!
interface Gi2/0/11
description "EQUALLOGIC SAN ISCSI"
spanning-tree portfast
switchport access vlan 100
exit
!

5-10 won't show up as nothings configured on those yet.

 

So if your entire #2 switch has no config set it wouldn't show, but if you set a config on a port that should pop up. (Unless you have configured anything thus the question )

 

Steve