No ping between two HP 6410cl in tagged vlan

[johnart]

Hello!

I have 2 HP ProCurve 6410cl at core level which connected to each other via first ports. First ports on both with untagged vlan 1 and ip addresses 172.16.202.1/26 and 172.16.202.2/26 separately. Ping between switches is OK. When I create and add to ports vlan 1000 as tagged with ip 10.192.223.193/30 and 10.192.223.194/30 there is no ping in most cases, but sometimes (very rare) ping is passed. MAC-addresses in CAM tables are present, arp entries are here too. Can you help me to explain how it can be and why? Thank You!

P.S. There is no STP (disabled)

*** Added: ***

P.S.2. My configs:

CORE1# show running-config

Running configuration:

; J8474A Configuration Editor; Created on release #M.08.142

hostname "CORE1"
no web-management
web-management ssl
no telnet-server
ip routing
vlan 1
   name "ADMINS"
   untagged 1-4
   ip address 172.16.202.1 255.255.255.192
   no untagged 5-6
   exit
vlan 2
   name "SERVERS"
   untagged 5-6
   ip address 192.168.5.35 255.255.255.0
   exit
vlan 1000
   name "P2P-CORES"
   ip address 10.192.223.193 255.255.255.252
   tagged 1
   exit
xrrp
xrrp domain 2
xrrp instance 1 1
xrrp instance 2 1 ip 172.16.202.2 255.255.255.192
xrrp instance 1 2
xrrp instance 2 2 ip 192.168.5.1 255.255.255.0
dhcp-relay option 82 append
ip route 0.0.0.0 0.0.0.0 192.168.5.75
no stack
key-chain "ospf"
key-chain "ospf" key 1 key-string "XXXXXX"
spanning-tree priority 3
ip router-id 172.16.202.1
ip ssh
router ospf
   area backbone
   redistribute connected
   redistribute static
   exit
vlan 1
   ip ospf area backbone
   ip ospf md5-auth-key-chain "ospf"
   ip ospf priority 3
   exit
vlan 2
   ip ospf area backbone
   ip ospf md5-auth-key-chain "ospf"
   ip ospf priority 3
   exit

CORE2# show running-config

Running configuration:

; J8474A Configuration Editor; Created on release #M.08.142

hostname "CORE2"
no web-management
web-management ssl
no telnet-server
ip routing
vlan 1
   name "ADMINS"
   untagged 1-4
   ip address 172.16.202.2 255.255.255.192
   no untagged 5-6
   exit
vlan 2
   name "SERVERS"
   untagged 5-6
   ip address 192.168.5.1 255.255.255.0
   exit
vlan 1000
   name "P2P-CORES"
   ip address 10.192.223.194 255.255.255.252
   tagged 1
   exit
xrrp
xrrp domain 2
xrrp router 2
xrrp trap state-change
xrrp instance 2 1
xrrp instance 1 1 ip 172.16.202.1 255.255.255.192
xrrp instance 2 2
xrrp instance 1 2 ip 192.168.5.35 255.255.255.0
ip route 0.0.0.0 0.0.0.0 192.168.5.75
no stack
key-chain "ospf"
key-chain "ospf" key 1 key-string "XXXXXX"
ip router-id 172.16.202.2
ip ssh
router ospf
   area backbone
   default-metric 11
   redistribute connected
   redistribute static
   exit
vlan 1
   ip ospf area backbone
   ip ospf md5-auth-key-chain "ospf"
   ip ospf cost 10
   ip ospf priority 2
   exit
vlan 2
   ip ospf area backbone
   ip ospf md5-auth-key-chain "ospf"
   ip ospf priority 2
   exit

Some commands for TSHOOT:

CORE1# show mac-address vlan 1000

 Status and Counters - Address Table - VLAN 1000

  MAC Address   Located on Port
  ------------- ---------------
  0001e7-940602 1

CORE1# show arp vlan 1000

 IP ARP table - VLAN 1000

  IP Address      MAC Address       Type    Port
  --------------- ----------------- ------- ----
  10.192.223.194  0001e7-940602     dynamic 1

CORE1# show spanning-tree

 Rapid Spanning Tree (RSTP) Information

  STP Enabled : No
  
CORE2# show mac-address vlan 1000

 Status and Counters - Address Table - VLAN 1000

  MAC Address   Located on Port
  ------------- ---------------
  0001e7-940603 1

CORE2# show arp vlan 1000

 IP ARP table - VLAN 1000

  IP Address      MAC Address       Type    Port
  --------------- ----------------- ------- ----
  10.192.223.193  0001e7-940603     dynamic 1
  
CORE2# show spanning-tree

 Rapid Spanning Tree (RSTP) Information

  STP Enabled : No

I don't know what to do. I need your help. 

P.S.3. Firmware is the latest(M.08.142), but I did try it on M.08.116 too with no results.