GroupStudy.com GroupStudy.com - A virtual community of network engineers
 Home  BookStore  StudyNotes  Links  Archives  StudyRooms  HelpWanted  Discounts  Login
Re: I am getting a K-value mismatch & retry limit exceeded messages posted 11/02/2008
[Chronological Index] [Thread Index] [Top] [Date Prev][Date Next] [Thread Prev][Thread Next]


As a side note you should have verified that R5 and SW4 could ping each
other before moving on to routing. I learn the hard way too :)

On Sun, Nov 2, 2008 at 5:45 PM, Hobbs <deadheadblues@xxxxxxxxx> wrote:

> Are you sure that SW4 f0/18 is connected to SW1 f0/15...?There seems to be
> another switch involved because SW1 is trunking on f0/15....show cdp
> neighbor, something funny's going on
>
>
> On Sun, Nov 2, 2008 at 5:33 PM, Piotr <usaccie@xxxxxxxxx> wrote:
>
>> SW4 > R5 - layer 2 path
>> sw4 f0/15 > sw1 f0/21 > r5 f0/0
>>
>>
>>
>>
>> On Sun, Nov 2, 2008 at 7:20 PM, Hobbs <deadheadblues@xxxxxxxxx> wrote:
>>
>>> Let's focus on the basics.
>>>
>>> You said "From R5 I can not ping 183.1.105.10."
>>>
>>> SW1 as far as I can tell is not routing between SW4 and R5 so we do not
>>> care about its routing table or whether it can ping any address. Sw4 and R5
>>> should have a layer 2 path somewhere. What is that path?
>>>
>>> Solve this issue first.
>>>
>>>
>>> On Sun, Nov 2, 2008 at 5:14 PM, Piotr <usaccie@xxxxxxxxx> wrote:
>>>
>>>> RSRack1SW1(config)#do sho int trunk
>>>>
>>>> Port        Mode         Encapsulation  Status        Native vlan
>>>> Fa0/13      on           802.1q         trunking      46
>>>> Fa0/15      on           802.1q         trunking      46
>>>> Fa0/21      on           802.1q         trunking      1
>>>>
>>>> Port        Vlans allowed on trunk
>>>> Fa0/13      1-4094
>>>> Fa0/15      1-4094
>>>> Fa0/21      1-4094
>>>>
>>>> Port        Vlans allowed and active in management domain
>>>> Fa0/13      1,6,28,33,45-46,102,105,107
>>>> Fa0/15      1,6,28,33,45-46,102,105,107
>>>> Fa0/21      1,6,28,33,45-46,102,105,107
>>>>
>>>> Port        Vlans in spanning tree forwarding state and not pruned
>>>> Fa0/13      1,6,28,33,45-46,102,105,107
>>>> Fa0/15      1,6,28,33,45-46,102,105,107
>>>> Fa0/21      1,6,28,33,45-46,102,105,107
>>>> RSRack1SW1(config)#
>>>>
>>>>
>>>>
>>>> RSRack1SW4(config-if)#do sho int trunk
>>>>
>>>> Port        Mode         Encapsulation  Status        Native vlan
>>>> Fa0/15      on           802.1q         trunking      1
>>>> Fa0/19      on           802.1q         trunking      46
>>>> Fa0/20      on           802.1q         trunking      46
>>>>
>>>> Port        Vlans allowed on trunk
>>>> Fa0/15      1-4094
>>>> Fa0/19      1-4094
>>>> Fa0/20      1-4094
>>>>
>>>> Port        Vlans allowed and active in management domain
>>>> Fa0/15      1,6,28,33,45-46,102,105,107
>>>> Fa0/19      1,6,28,33,45-46,102,105,107
>>>> Fa0/20      1,6,28,33,45-46,102,105,107
>>>>
>>>> Port        Vlans in spanning tree forwarding state and not pruned
>>>> Fa0/15      1,6,28,33,45-46,102,105,107
>>>> Fa0/19      1,6,28,33,45-46,102,105,107
>>>> Fa0/20      1,6,28,33,45-46,102,105,107
>>>> RSRack1SW4(config-if)#do sho cdp nei
>>>> Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
>>>>                   S - Switch, H - Host, I - IGMP, r - Repeater, P -
>>>> Phone
>>>>
>>>> Device ID            Local Intrfce         Holdtme   Capability
>>>> Platform   Port ID
>>>> RSRack1SW3          Fas 0/20              132            S I
>>>> WS-C3550-2Fas 0/20
>>>> RSRack1SW3          Fas 0/19              132            S I
>>>> WS-C3550-2Fas 0/19
>>>> RSRack1SW3          Fas 0/21              132            S I
>>>> WS-C3550-2Fas 0/21
>>>> RSRack1SW2          Fas 0/18              157           R S I
>>>> WS-C3560-2Fas 0/21
>>>> RSRack1SW1          Fas 0/15              158           R S I
>>>> WS-C3560-2Fas 0/21
>>>> RSRack1R4           Fas 0/4               165           R S I
>>>> 2811      Fas 0/1
>>>> RSRack1R6           Fas 0/6               165           R S I
>>>> 2811      Fas 0/1
>>>>
>>>>
>>>> RSRack1SW1(config)#do ping 183.1.105.10
>>>>
>>>> Type escape sequence to abort.
>>>> Sending 5, 100-byte ICMP Echos to 183.1.105.10, timeout is 2 seconds:
>>>> !!!!!
>>>> Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms
>>>> RSRack1SW1(config)#do ping 183.1.105.5
>>>>
>>>> Type escape sequence to abort.
>>>> Sending 5, 100-byte ICMP Echos to 183.1.105.5, timeout is 2 seconds:
>>>> .....
>>>> Success rate is 0 percent (0/5)
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> On Sun, Nov 2, 2008 at 7:09 PM, Piotr <usaccie@xxxxxxxxx> wrote:
>>>>
>>>>> R5 F0/0 has a physical connection to sw f0/5
>>>>>
>>>>> RSRack1R5(config-if)#do sri f0/0
>>>>> Building configuration...
>>>>>
>>>>> Current configuration : 95 bytes
>>>>> !
>>>>> interface FastEthernet0/0
>>>>>  ip address 183.1.105.5 255.255.255.0
>>>>>   duplex full
>>>>>  speed 100
>>>>> end
>>>>>
>>>>>
>>>>> RSRack1SW1(config)#do sri f0/5
>>>>> Building configuration...
>>>>>
>>>>> Current configuration : 109 bytes
>>>>> !
>>>>> interface FastEthernet0/5
>>>>>  switchport access vlan 105
>>>>>  switchport mode access
>>>>>  speed 100
>>>>>  duplex full
>>>>> end
>>>>>
>>>>> On the topology map R5 F0/0 connects to sw4 f0/18
>>>>>
>>>>> SRack1SW4(config-router)#  do sri f0/18
>>>>> Building configuration...
>>>>>
>>>>> Current configuration : 88 bytes
>>>>> !
>>>>> interface FastEthernet0/18
>>>>>  no switchport
>>>>>  ip address 183.1.105.10 255.255.255.0
>>>>> end
>>>>>
>>>>>
>>>>>
>>>>> On Sun, Nov 2, 2008 at 7:06 PM, Piotr <usaccie@xxxxxxxxx> wrote:
>>>>>
>>>>>> RSRack1SW1(config-if)#do sho ip route 183.1.105.5
>>>>>> Routing entry for 183.1.105.0/24
>>>>>>   Known via "eigrp 100", distance 90, metric 30720, type internal
>>>>>>   Redistributing via eigrp 100
>>>>>>   Last update from 183.1.107.10 on FastEthernet0/14, 00:20:27 ago
>>>>>>   Routing Descriptor Blocks:
>>>>>>   * 183.1.107.10, from 183.1.107.10, 00:20:27 ago, via
>>>>>> FastEthernet0/14
>>>>>>       Route metric is 30720, traffic share count is 1
>>>>>>       Total delay is 200 microseconds, minimum bandwidth is 100000
>>>>>> Kbit
>>>>>>       Reliability 255/255, minimum MTU 1500 bytes
>>>>>>       Loading 1/255, Hops 1
>>>>>>
>>>>>> RSRack1SW1(config-if)#do sho ip route 183.1.105.10
>>>>>> Routing entry for 183.1.105.0/24
>>>>>>   Known via "eigrp 100", distance 90, metric 30720, type internal
>>>>>>   Redistributing via eigrp 100
>>>>>>   Last update from 183.1.107.10 on FastEthernet0/14, 00:20:31 ago
>>>>>>   Routing Descriptor Blocks:
>>>>>>   * 183.1.107.10, from 183.1.107.10, 00:20:31 ago, via
>>>>>> FastEthernet0/14
>>>>>>       Route metric is 30720, traffic share count is 1
>>>>>>       Total delay is 200 microseconds, minimum bandwidth is 100000
>>>>>> Kbit
>>>>>>       Reliability 255/255, minimum MTU 1500 bytes
>>>>>>       Loading 1/255, Hops 1
>>>>>>
>>>>>>
>>>>>> On Sun, Nov 2, 2008 at 6:56 PM, Narbik Kocharians <narbikk@xxxxxxxxx>wrote:
>>>>>>
>>>>>>> Can you show us the configuration of the interfaces.
>>>>>>>
>>>>>>>
>>>>>>> On Sun, Nov 2, 2008 at 3:44 PM, Hobbs <deadheadblues@xxxxxxxxx>wrote:
>>>>>>>
>>>>>>>> What is the mask of each interface?
>>>>>>>>
>>>>>>>> On Sun, Nov 2, 2008 at 4:43 PM, Hobbs <deadheadblues@xxxxxxxxx>
>>>>>>>> wrote:
>>>>>>>>
>>>>>>>> > When does it happen? After you change a parameter? I think I have
>>>>>>>> seen the
>>>>>>>> > issue that Bob talked about with the goodbye message causing a
>>>>>>>> K-value
>>>>>>>> > mismatch....It looks like you are getting the K-value mismatch,
>>>>>>>> then your
>>>>>>>> > adjacency is forming. This means your adjacency was brought down
>>>>>>>> for some
>>>>>>>> > reason - maybe you configured a summary or secondary address...
>>>>>>>> >
>>>>>>>> > Example: I had an initial config with a mistake (on purpose). One
>>>>>>>> router on
>>>>>>>> > a LAN with /24 and the other with /20 mask. After I configured the
>>>>>>>> /20 for a
>>>>>>>> > /24, EIGRP sent a goodbye and the other router complained about a
>>>>>>>> K-value
>>>>>>>> > mismatch. The adjacency then came up fine.
>>>>>>>> >
>>>>>>>> > I wonder if its a code issue...I am always running 12.4...
>>>>>>>> >
>>>>>>>> > On Sun, Nov 2, 2008 at 4:22 PM, Piotr <usaccie@xxxxxxxxx> wrote:
>>>>>>>> >
>>>>>>>> >> On the routers I left the MTU at default,m 1500. On the switches
>>>>>>>> >> (3550/3560)
>>>>>>>> >> I set the system MTU to 1500 (system MTU 1500 or system MTU
>>>>>>>> routing 1500.
>>>>>>>> >> Where allowed on the interface I set ip mtu 1500).
>>>>>>>> >>
>>>>>>>> >> Debugs don't show me anything. I was looking to shut the messages
>>>>>>>> off with
>>>>>>>> >> a
>>>>>>>> >> command similar to ip ospf mtu-ignore but I don't see one under
>>>>>>>> the
>>>>>>>> >> interface.
>>>>>>>> >>
>>>>>>>> >> I can try and set the metric for all devices in the AS and see
>>>>>>>> what
>>>>>>>> >> happens.
>>>>>>>> >>
>>>>>>>> >>
>>>>>>>> >> On Sun, Nov 2, 2008 at 3:02 PM, Bob Sinclair <
>>>>>>>> bob@xxxxxxxxxxxxxxx> wrote:
>>>>>>>> >>
>>>>>>>> >> > Piotr,
>>>>>>>> >> >
>>>>>>>> >> > Check that the MTUs match on both devices.  I notice one is a
>>>>>>>> switch.
>>>>>>>> >> >  Though the specs do  not require equal MTU (like OSPF does)
>>>>>>>> Cisco
>>>>>>>> >> routers
>>>>>>>> >> > have been known to drop EIGRP packets over MTU mismatch issues.
>>>>>>>> >> > The K-value mismatch error can be caused when the near side
>>>>>>>> router does
>>>>>>>> >> not
>>>>>>>> >> > support the "goodbye" message, added around 12.2(3), but the
>>>>>>>> far side
>>>>>>>> >> does.
>>>>>>>> >> >
>>>>>>>> >> > HTH,
>>>>>>>> >> >
>>>>>>>> >> > Bob Sinclair  CCIE 10427  CCSI 30427
>>>>>>>> >> > www.netmasterclass.net
>>>>>>>> >> >
>>>>>>>> >> > Piotr wrote:
>>>>>>>> >> >
>>>>>>>> >> >> Switch:
>>>>>>>> >> >>
>>>>>>>> >> >> 05:04:04: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor
>>>>>>>> >> >> 183.1.105.5(FastEthernet0/18) is up: new adjacency
>>>>>>>> >> >>  --More--
>>>>>>>> >> >> 05:05:23: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor
>>>>>>>> >> >> 183.1.105.5(FastEthernet0/18) is down: K-value mismatch
>>>>>>>> >> >>  --More--
>>>>>>>> >> >> 05:05:26: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100: Neighbor
>>>>>>>> >> >> 183.1.105.5(FastEthernet0/18) is up: new adjacency
>>>>>>>> >> >>
>>>>>>>> >> >> router eigrp 100
>>>>>>>> >> >>  network 183.1.105.10 0.0.0.0
>>>>>>>> >> >>  network 183.1.107.10 0.0.0.0
>>>>>>>> >> >>  no auto-summary
>>>>>>>> >> >>  eigrp router-id 150.1.10.10
>>>>>>>> >> >>
>>>>>>>> >> >> interface FastEthernet0/18
>>>>>>>> >> >>  no switchport
>>>>>>>> >> >>  ip address 183.1.105.10 255.255.255.0
>>>>>>>> >> >>
>>>>>>>> >> >>
>>>>>>>> >> >> Routing Protocol is "eigrp 100"
>>>>>>>> >> >>  Outgoing update filter list for all interfaces is not set
>>>>>>>> >> >>  Incoming update filter list for all interfaces is not set
>>>>>>>> >> >>  Default networks flagged in outgoing updates
>>>>>>>> >> >>  Default networks accepted from incoming updates
>>>>>>>> >> >>  EIGRP metric weight K1=1, K2=0, K3=1, K4=0, K5=0
>>>>>>>> >> >>  EIGRP maximum hopcount 100
>>>>>>>> >> >>  EIGRP maximum metric variance 1
>>>>>>>> >> >>  Redistributing: eigrp 100
>>>>>>>> >> >>  EIGRP NSF-aware route hold timer is 240s
>>>>>>>> >> >>  Automatic network summarization is not in effect
>>>>>>>> >> >>  Maximum path: 4
>>>>>>>> >> >>  Routing for Networks:
>>>>>>>> >> >>    183.1.105.10/32
>>>>>>>> >> >>    183.1.107.10/32
>>>>>>>> >> >>  Routing Information Sources:
>>>>>>>> >> >>    Gateway         Distance      Last Update
>>>>>>>> >> >>    183.1.107.7           90      00:07:43
>>>>>>>> >> >>  Distance: internal 90 external 170
>>>>>>>> >> >>
>>>>>>>> >> >>
>>>>>>>> >> >>
>>>>>>>> >> >>
>>>>>>>> >> >> router:
>>>>>>>> >> >> *Nov  2 13:55:54.926: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100:
>>>>>>>> Neighbor
>>>>>>>> >> >> 183.1.105.10 (FastEthernet0/0) is down: retry limit exceeded
>>>>>>>> >> >> RSRack1R5(config-router)#
>>>>>>>> >> >> *Nov  2 13:55:57.322: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100:
>>>>>>>> Neighbor
>>>>>>>> >> >> 183.1.105.10 (FastEthernet0/0) is up: new adjacency
>>>>>>>> >> >> RSRack1R5(config-router)#
>>>>>>>> >> >> *Nov  2 13:57:16.834: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100:
>>>>>>>> Neighbor
>>>>>>>> >> >> 183.1.105.10 (FastEthernet0/0) is down: retry limit exceeded
>>>>>>>> >> >> RSRack1R5(config-router)#
>>>>>>>> >> >> *Nov  2 13:57:20.290: %DUAL-5-NBRCHANGE: IP-EIGRP(0) 100:
>>>>>>>> Neighbor
>>>>>>>> >> >> 183.1.105.10 (FastEthernet0/0) is up: new adjacency
>>>>>>>> >> >>
>>>>>>>> >> >>
>>>>>>>> >> >> router eigrp 100
>>>>>>>> >> >>  network 183.1.105.5 0.0.0.0
>>>>>>>> >> >>  no auto-summary
>>>>>>>> >> >>  eigrp router-id 150.1.5.5
>>>>>>>> >> >>
>>>>>>>> >> >>
>>>>>>>> >> >> interface FastEthernet0/0
>>>>>>>> >> >>  ip address 183.1.105.5 255.255.255.0
>>>>>>>> >> >>  duplex auto
>>>>>>>> >> >>  speed auto
>>>>>>>> >> >>
>>>>>>>> >> >>
>>>>>>>> >> >> Routing Protocol is "eigrp 100"
>>>>>>>> >> >>  Outgoing update filter list for all interfaces is not set
>>>>>>>> >> >>  Incoming update filter list for all interfaces is not set
>>>>>>>> >> >>  Default networks flagged in outgoing updates
>>>>>>>> >> >>  Default networks accepted from incoming updates
>>>>>>>> >> >>  EIGRP metric weight K1=1, K2=0, K3=1, K4=0, K5=0
>>>>>>>> >> >>  EIGRP maximum hopcount 100
>>>>>>>> >> >>  EIGRP maximum metric variance 1
>>>>>>>> >> >>  Redistributing: eigrp 100
>>>>>>>> >> >>  EIGRP NSF-aware route hold timer is 240s
>>>>>>>> >> >>  Automatic network summarization is not in effect
>>>>>>>> >> >>  Maximum path: 4
>>>>>>>> >> >>  Routing for Networks:
>>>>>>>> >> >>    183.1.105.5/32
>>>>>>>> >> >>  Routing Information Sources:
>>>>>>>> >> >>    Gateway         Distance      Last Update
>>>>>>>> >> >>    183.1.105.10          90      00:09:49
>>>>>>>> >> >>  Distance: internal 90 external 170
>>>>>>>> >> >>
>>>>>>>> >> >>
>>>>>>>> >> >> Blogs and organic groups at http://www.ccie.net
>>>>>>>> >> >>
>>>>>>>> >> >>
>>>>>>>> _______________________________________________________________________
>>>>>>>> >> >> Subscription information may be found at:
>>>>>>>> >> >> http://www.groupstudy.com/list/CCIELab.html
>>>>>>>> >>
>>>>>>>> >>
>>>>>>>> >> Blogs and organic groups at http://www.ccie.net
>>>>>>>> >>
>>>>>>>> >>
>>>>>>>> _______________________________________________________________________
>>>>>>>> >> Subscription information may be found at:
>>>>>>>> >> http://www.groupstudy.com/list/CCIELab.html
>>>>>>>>
>>>>>>>>
>>>>>>>> Blogs and organic groups at http://www.ccie.net
>>>>>>>>
>>>>>>>>
>>>>>>>> _______________________________________________________________________
>>>>>>>> Subscription information may be found at:
>>>>>>>> http://www.groupstudy.com/list/CCIELab.html
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> --
>>>>>>> Narbik Kocharians
>>>>>>> CCSI#30832, CCIE# 12410 (R&S, SP, Security)
>>>>>>> www.MicronicsTraining
>>>>>>> www.Net-Workbooks.com
>>>>>>> Sr. Technical Instructor