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HP 2920 switch stack issue

 
mastah
Visitor

HP 2920 switch stack issue

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.

5 REPLIES 5
Vince-Whirlwind
Honored Contributor

Re: HP 2920 switch stack issue

I think we need to see your "show run" in order to comment.

 

 

mastah
Visitor

Re: HP 2920 switch stack issue

; 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
Vince-Whirlwind
Honored Contributor

Re: HP 2920 switch stack issue

I can see your ports 2/1-48 are all in there, untagged in VLAN1 + tagged in all other VLANs.

 

If the other switch "won't communicate", it's probably because the VLAN tagging doesn't match up.

 

What are the details of the connection attempt that "won't communicate"?

 

Your uplink port (1/24) is untagged in VLAN1, tagged in VLAN11.

What VLAN(s) configured on the switchport you are patching it to?

 

 

mastah
Visitor

Re: HP 2920 switch stack issue

I also think that the miscommunication will almost definitely be a VLAN issue. The main issue that I am struggling to find any kind of resolution to is that in the show run, only one switches interfaces are being shown and the other switch is being missed off.

Vince-Whirlwind
Honored Contributor

Re: HP 2920 switch stack issue

The interfaces seem to be in there fine:

 

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