Connecting HP 5400 with Cisco 1800 router over OSPF

[aali]

I can't get OSPF to come to loading/full state and stuck in init mode.  After debugging I only see Cisco sending packets, HP gets "invalid Packets" so I think it is a issue with timers mismatch.

Do we need to make adjustments to OSPF timer at the HP end?

Regards,

[Fredrik Lönnman]

Shouldnt need to if your Cisco have default timers. Could you paste the Cisco and HP configurations? Also the debug.

[aali]

Here you go.  HTH

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

Cisco 1800

interface FastEthernet0/0
 description IC LINK 1
 no ip address
 speed 100
 full-duplex
!
interface FastEthernet0/0.211
 description IC LINK 1
 encapsulation dot1Q 211
 ip address 10.102.200.1 255.255.255.252

router ospf 1
 log-adjacency-changes
 network 10.102.200.0 0.0.0.3 area 0
 network 10.102.200.4 0.0.0.3 area 0
 network 10.0.0.0 0.255.255.255 area 0

Router#debug ip ospf events
OSPF events debugging is on
Router#
*Feb 12 18:56:41.996: OSPF: Send hello to 224.0.0.5 area 0 on FastEthernet0/0.211 from 10.102.200.1
*Feb 12 18:56:51.144: OSPF: Send hello to 224.0.0.5 area 0 on FastEthernet0/0.211 from 10.102.200.1
*Feb 12 18:57:00.992: OSPF: Send hello to 224.0.0.5 area 0 on FastEthernet0/0.211 from 10.102.200.1

Router#sh ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2
       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
       ia - IS-IS inter area, * - candidate default, U - per-user static route
       o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

     10.0.0.0/30 is subnetted, 1 subnets
C       10.102.200.0 is directly connected, FastEthernet0/0.211

Router#sh ip ospf neighbor

Router#

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

HP 5400zl

HP 5400

IC_1stFloor# sh run vlan 211

Running configuration:

vlan 211
   name "CSC_IC_Uplink1"
   untagged A1
   ip address 10.102.200.2 255.255.255.252
   ip ospf 10.102.200.2 area backbone
   exit

interface A1
   broadcast-limit 20
   untagged vlan 211
   exit

IC_1stFloor# sh run | b ospf

router ospf
   area backbone
   redistribute connected
   enable
   exit
interface loopback 0
   ip address 10.102.200.10
   exit

IC_1stFloor# sh ip ospf statistics

 OSPF Interface Statistics

  IP Address      Total Tx        Total Rx        Total Errors
  --------------- --------------- --------------- ---------------
  10.102.200.2    25              26              0
  10.102.200.6    0               0               0

IC_1stFloor# sh ip ospf neighbor

 OSPF Neighbor Information

                                                         Rxmt         Helper
  Router ID       Pri IP Address      NbIfState State    QLen  Events Status
  --------------- --- --------------- --------- -------- ----- ------ ------
  10.102.200.1    1   10.102.200.1              INIT     0     2      None

from log:
02/21/06 15:47:19 03158 OSPF: ADJCHG:Invalid event 1-Way Received at Init
            state

[Fredrik Lönnman]

The Cisco subint is configured with the dot1q tag 211 while the HP is vlan 211 untagged. I'm guessing Cisco fa0/0 is connected to HP A1? Then make vlan 211 tagged on HP A1, or make the dot1q 211 native on the Cisco.