From: Hobbs (deadheadblues@gmail.com)
Date: Sun Nov 02 2008 - 22:45:49 ARST
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@gmail.com> 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@gmail.com> 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@gmail.com> 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@gmail.com> 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@gmail.com> 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@gmail.com>wrote:
>>>>>
>>>>>> Can you show us the configuration of the interfaces.
>>>>>>
>>>>>>
>>>>>> On Sun, Nov 2, 2008 at 3:44 PM, Hobbs <deadheadblues@gmail.com>wrote:
>>>>>>
>>>>>>> What is the mask of each interface?
>>>>>>>
>>>>>>> On Sun, Nov 2, 2008 at 4:43 PM, Hobbs <deadheadblues@gmail.com>
>>>>>>> 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@gmail.com> 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@bobsinclair.net>
>>>>>>> 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
Blogs and organic groups at http://www.ccie.net
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