Re: Spanning Tree: %SW_MATM-4-MACFLAP_NOTIF

Finally saved and reloaded now seems to be working, seeing stp blocking.

Weird!

Thanks guys for the help.

On Tue, Apr 28, 2009 at 12:11 AM, kevin dalby <ccieconsult_at_gmail.com> wrote:

> Configs and Sh Neighbors below, spanning tree issue persists when native
> vlans are same...tell dragon that he can't eat me until I figure this out.
>
> Thanks
>
>
> --------------------R1----------------------------
> Rack1SW1(config-if-range)#do sh cdp ne
> Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
> S - Switch, H - Host, I - IGMP, r - Repeater, P - Phone,
> D - Remote, C - CVTA, M - Two-port Mac Relay
> Device ID Local Intrfce Holdtme Capability Platform Port ID
> Rack1SW2 Fas 0/14 178 S I WS-C3550- Fas
> 0/14
> Rack1SW2 Fas 0/13 152 S I WS-C3550- Fas
> 0/13
> Rack1SW2 Fas 0/15 152 S I WS-C3550- Fas
> 0/15
>
>
>
> Rack1SW1(config-if-range)#do sh span vlan 1
> 13:50:01: %SW_MATM-4-MACFLAP_NOTIF: Host 0005.3246.d0c0 in vlan 1 is
> flapping between port Fa0/15 and port Fa0/13
> Rack1SW1(config-if-range)#do sh span vlan 1 det
> VLAN0001 is executing the ieee compatible Spanning Tree protocol
> Bridge Identifier has priority 32768, sysid 1, address 0014.f20d.7780
> Configured hello time 2, max age 20, forward delay 15
> We are the root of the spanning tree
> Topology change flag not set, detected flag not set
> Number of topology changes 33 last change occurred 00:05:23 ago
> from FastEthernet0/19
> Times: hold 1, topology change 35, notification 2
> hello 2, max age 20, forward delay 15
> Timers: hello 1, topology change 0, notification 0, aging 300
> Port 13 (FastEthernet0/13) of VLAN0001 is designated forwarding
> Port path cost 19, Port priority 128, Port Identifier 128.13.
> Designated root has priority 32769, address 0014.f20d.7780
> Designated bridge has priority 32769, address 0014.f20d.7780
> Designated port id is 128.13, designated path cost 0
> Timers: message age 0, forward delay 0, hold 0
> Number of transitions to forwarding state: 1
> Link type is point-to-point by default
> BPDU: sent 10731, received 1697
> Port 15 (FastEthernet0/15) of VLAN0001 is designated forwarding
> Port path cost 19, Port priority 128, Port Identifier 128.15.
> Designated root has priority 32769, address 0014.f20d.7780
> Designated bridge has priority 32769, address 0014.f20d.7780
> Designated port id is 128.15, designated path cost 0
> Timers: message age 0, forward delay 0, hold 0
> Number of transitions to forwarding state: 3
> Link type is point-to-point by default
> BPDU: sent 10721, received 1695
> Rack1SW1(config-if-range)#
>
>
> Rack1SW1(config-if-range)#do sh run
> Building configuration...
> Current configuration : 5942 bytes
> !
> version 12.2
> no service pad
> service timestamps debug uptime
> service timestamps log uptime
> no service password-encryption
> !
> hostname Rack1SW1
> !
> logging buffered 20000
> enable password cisco
> !
> no aaa new-model
> ip subnet-zero
> no ip domain-lookup
> !
> !
> !
> !
> crypto pki trustpoint TP-self-signed-4060968832
> enrollment selfsigned
> subject-name cn=IOS-Self-Signed-Certificate-4060968832
> revocation-check none
> rsakeypair TP-self-signed-4060968832
> !
> !
> crypto pki certificate chain TP-self-signed-4060968832
> certificate self-signed 01
> 30820241 308201AA A0030201 02020101 300D0609 2A864886 F70D0101 04050030
> 31312F30 2D060355 04031326 494F532D 53656C66 2D536967 6E65642D 43657274
> 69666963 6174652D 34303630 39363838 3332301E 170D3933 30333031 30303031
> 31355A17 0D323030 31303130 30303030 305A3031 312F302D 06035504 03132649
> 4F532D53 656C662D 5369676E 65642D43 65727469 66696361 74652D34 30363039
> 36383833 3230819F 300D0609 2A864886 F70D0101 01050003 818D0030 81890281
> 8100E202 22A0640A 27201D56 59B87B7E 02342407 E8A92C54 F6BA3A75 80E8280F
> E8ECA366 F91C6544 820E8883 580757FB EB0C2315 88269466 3AD166AB 67F681C8
> E41207FB 6E119051 4014AE3B 8B12AB84 E977A274 D78350E9 BC9CF6B8 4F55EC41
> 40D18604 13325AB4 6EC23EA7 B36BA010 0B4C8356 586B1B87 616D37D3 5C839F52
> 0D770203 010001A3 69306730 0F060355 1D130101 FF040530 030101FF 30140603
> 551D1104 0D300B82 09526163 6B315357 312E301F 0603551D 23041830 168014D0
> FE68A144 88C50209 83D81199 324C3BCC 1D0A4330 1D060355 1D0E0416 0414D0FE
> 68A14488 C5020983 D8119932 4C3BCC1D 0A43300D 06092A86 4886F70D 01010405
> 00038181 004F1BD2 FBE88389 B9BD1891 CBBD2EC2 59F8ABE2 652DA6A6 A2EBEEC5
> 1E0F1707 4F522EE9 3107AEB6 95081174 F2E24660 6CE70777 51C67962 E8F0683B
> A258A416 8C8E00A7 995ED2FC 31612C1A DC3A16FF 51083560 8FCA9ECE F18B2911
> D8A396FE 41005DB3 6EAA1BF3 EF991456 9591A85B F7C4FEF2 FF4DC0E0 E80EFED1
> 598C42E0 A8
> quit
> !
> !
> spanning-tree mode pvst
> spanning-tree etherchannel guard misconfig
> spanning-tree extend system-id
> !
> vlan internal allocation policy ascending
> !
> !
> !
> !
> !
> !
> interface Loopback0
> ip address 150.1.7.7 255.255.255.0
> !
> interface FastEthernet0/1
> no switchport
> ip address 183.1.17.7 255.255.255.0
> shutdown
> !
> interface FastEthernet0/2
> switchport mode dynamic desirable
> shutdown
> !
> interface FastEthernet0/3
> switchport mode dynamic desirable
> shutdown
> !
> interface FastEthernet0/4
> switchport mode dynamic desirable
> shutdown
> !
> interface FastEthernet0/5
> switchport mode dynamic desirable
> shutdown
> !
> interface FastEthernet0/6
> switchport mode dynamic desirable
> shutdown
> !
> interface FastEthernet0/7
> switchport mode dynamic desirable
> shutdown
> !
> interface FastEthernet0/8
> switchport mode dynamic desirable
> shutdown
> !
> interface FastEthernet0/9
> switchport mode dynamic desirable
> shutdown
> !
> interface FastEthernet0/10
> switchport mode dynamic desirable
> shutdown
> !
> interface FastEthernet0/11
> switchport mode dynamic desirable
> shutdown
> !
> interface FastEthernet0/12
> switchport mode dynamic desirable
> shutdown
> !
> interface FastEthernet0/13
> switchport trunk encapsulation dot1q
> switchport trunk native vlan 46
> switchport mode trunk
> !
> interface FastEthernet0/14
> no switchport
> ip address 183.1.107.7 255.255.255.0
> !
> interface FastEthernet0/15
> switchport trunk encapsulation dot1q
> switchport trunk native vlan 46
> switchport mode trunk
> !
> interface FastEthernet0/16
> switchport mode dynamic desirable
> shutdown
> !
> interface FastEthernet0/17
> switchport mode dynamic desirable
> shutdown
> !
> interface FastEthernet0/18
> switchport mode dynamic desirable
> shutdown
> !
> interface FastEthernet0/19
> switchport mode dynamic desirable
> shutdown
> !
> interface FastEthernet0/20
> switchport mode dynamic desirable
> shutdown
> !
> interface FastEthernet0/21
> switchport trunk encapsulation dot1q
> switchport mode trunk
> shutdown
> !
> interface FastEthernet0/22
> switchport mode dynamic desirable
> !
> interface FastEthernet0/23
> switchport mode dynamic desirable
> !
> interface FastEthernet0/24
> switchport mode dynamic desirable
> !
> interface FastEthernet0/25
> switchport mode dynamic desirable
> !
> interface FastEthernet0/26
> switchport mode dynamic desirable
> !
> interface FastEthernet0/27
> switchport mode dynamic desirable
> !
> interface FastEthernet0/28
> switchport mode dynamic desirable
> !
> interface FastEthernet0/29
> switchport mode dynamic desirable
> !
> interface FastEthernet0/30
> switchport mode dynamic desirable
> !
> interface FastEthernet0/31
> switchport mode dynamic desirable
> !
> interface FastEthernet0/32
> switchport mode dynamic desirable
> !
> interface FastEthernet0/33
> switchport mode dynamic desirable
> !
> interface FastEthernet0/34
> switchport mode dynamic desirable
> !
> interface FastEthernet0/35
> switchport mode dynamic desirable
> !
> interface FastEthernet0/36
> switchport mode dynamic desirable
> !
> interface FastEthernet0/37
> switchport mode dynamic desirable
> !
> interface FastEthernet0/38
> switchport mode dynamic desirable
> !
> interface FastEthernet0/39
> switchport mode dynamic desirable
> !
> interface FastEthernet0/40
> switchport mode dynamic desirable
> !
> interface FastEthernet0/41
> switchport mode dynamic desirable
> !
> interface FastEthernet0/42
> switchport mode dynamic desirable
> !
> interface FastEthernet0/43
> switchport mode dynamic desirable
> !
> interface FastEthernet0/44
> switchport mode dynamic desirable
> !
> interface FastEthernet0/45
> switchport mode dynamic desirable
> !
> interface FastEthernet0/46
> switchport mode dynamic desirable
> !
> interface FastEthernet0/47
> switchport mode dynamic desirable
> !
> interface FastEthernet0/48
> switchport mode dynamic desirable
> !
> interface GigabitEthernet0/1
> switchport mode dynamic desirable
> !
> interface GigabitEthernet0/2
> switchport mode dynamic desirable
> !
> interface Vlan1
> no ip address
> !
> ip classless
> ip http server
> ip http secure-server
> !
> !
> !
> control-plane
> !
> !
> line con 0
> exec-timeout 0 0
> privilege level 15
> password cisco
> logging synchronous
> line vty 0 4
> password cisco
> login
> line vty 5 15
> password cisco
> login
> !
> end
>
> -----------------------R2--------------------------------
>
>
> Rack1SW2(config-if-range)#do sh cdp ne
> Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge
> S - Switch, H - Host, I - IGMP, r - Repeater, P - Phone,
> D - Remote, C - CVTA, M - Two-port Mac Relay
> Device ID Local Intrfce Holdtme Capability Platform Port ID
> Rack1SW1 Fas 0/14 144 S I WS-C3550- Fas
> 0/14
> Rack1SW1 Fas 0/15 170 S I WS-C3550- Fas
> 0/15
> Rack1SW1 Fas 0/13 170 S I WS-C3550- Fas
> 0/13
> Rack1SW2(config-if-range)#do sh span vlan 1 det
> VLAN0001 is executing the ieee compatible Spanning Tree protocol
> Bridge Identifier has priority 32768, sysid 1, address 0014.6aa3.f880
> Configured hello time 2, max age 20, forward delay 15
> We are the root of the spanning tree
> Topology change flag not set, detected flag not set
> Number of topology changes 21 last change occurred 00:08:54 ago
> from FastEthernet0/19
> Times: hold 1, topology change 35, notification 2
> hello 2, max age 20, forward delay 15
> Timers: hello 1, topology change 0, notification 0, aging 300
> Port 13 (FastEthernet0/13) of VLAN0001 is designated forwarding
> Port path cost 19, Port priority 128, Port Identifier 128.13.
> Designated root has priority 32769, address 0014.6aa3.f880
> Designated bridge has priority 32769, address 0014.6aa3.f880
> Designated port id is 128.13, designated path cost 0
> Timers: message age 0, forward delay 0, hold 0
> Number of transitions to forwarding state: 1
> Link type is point-to-point by default
> BPDU: sent 14381, received 72
> Port 14 (FastEthernet0/14) of VLAN0001 is designated forwarding
> Port path cost 19, Port priority 128, Port Identifier 128.14.
> Designated root has priority 32769, address 0014.6aa3.f880
> Designated bridge has priority 32769, address 0014.6aa3.f880
> Designated port id is 128.14, designated path cost 0
> Timers: message age 0, forward delay 0, hold 0
> Number of transitions to forwarding state: 1
> Link type is point-to-point by default
> BPDU: sent 381, received 0
> Port 15 (FastEthernet0/15) of VLAN0001 is designated forwarding
> Port path cost 19, Port priority 128, Port Identifier 128.15.
> Designated root has priority 32769, address 0014.6aa3.f880
> Designated bridge has priority 32769, address 0014.6aa3.f880
> Designated port id is 128.15, designated path cost 0
> Timers: message age 0, forward delay 0, hold 0
> Number of transitions to forwarding state: 1
> Link type is point-to-point by default
> BPDU: sent 14384, received 69
> Port 24 (FastEthernet0/24) of VLAN0001 is designated forwarding
> Port path cost 100, Port priority 128, Port Identifier 128.24.
> Designated root has priority 32769, address 0014.6aa3.f880
> Designated bridge has priority 32769, address 0014.6aa3.f880
> Designated port id is 128.24, designated path cost 0
> Timers: message age 0, forward delay 0, hold 0
> Number of transitions to forwarding state: 1
> Link type is shared by default
> BPDU: sent 24970, received 0
>
>
>
> Rack1SW2(config-if-range)#do sh run
> Building configuration...
> Current configuration : 6114 bytes
> !
> version 12.2
> no service pad
> service timestamps debug uptime
> service timestamps log uptime
> no service password-encryption
> !
> hostname Rack1SW2
> !
> logging buffered 20000
> enable password cisco
> !
> no aaa new-model
> ip subnet-zero
> no ip domain-lookup
> !
> !
> !
> !
> crypto pki trustpoint TP-self-signed-1789130880
> enrollment selfsigned
> subject-name cn=IOS-Self-Signed-Certificate-1789130880
> revocation-check none
> rsakeypair TP-self-signed-1789130880
> !
> !
> crypto pki certificate chain TP-self-signed-1789130880
> certificate self-signed 01
> 30820241 308201AA A0030201 02020101 300D0609 2A864886 F70D0101 04050030
> 31312F30 2D060355 04031326 494F532D 53656C66 2D536967 6E65642D 43657274
> 69666963 6174652D 31373839 31333038 3830301E 170D3933 30333031 30303031
> 31355A17 0D323030 31303130 30303030 305A3031 312F302D 06035504 03132649
> 4F532D53 656C662D 5369676E 65642D43 65727469 66696361 74652D31 37383931
> 33303838 3030819F 300D0609 2A864886 F70D0101 01050003 818D0030 81890281
> 8100C2F8 F1679ED5 FCED3067 F70857D6 15B15401 E3535AAB 9112327F 9FECCE05
> 53025943 57BCEE4C 4A30F602 49AC6420 2BD8EAA1 4A9756DE C0052EA6 23378A90
> 3B49C05A 1A5D7C1B C933E082 2FE9A7DD 51241AA6 B956D6F1 623195DE 87E10CCE
> BACD340D 3F9EBA67 FEC796F7 0D9D616E 3D4BA392 3335BE0F BD26EF51 23D9D60D
> 49270203 010001A3 69306730 0F060355 1D130101 FF040530 030101FF 30140603
> 551D1104 0D300B82 09526163 6B315357 322E301F 0603551D 23041830 168014C9
> 80FFD5A7 E39C9243 E3D26F01 FB04AE6B 37372C30 1D060355 1D0E0416 0414C980
> FFD5A7E3 9C9243E3 D26F01FB 04AE6B37 372C300D 06092A86 4886F70D 01010405
> 00038181 0054B49D 726B3082 68982B44 167C43C1 5A46CA49 BEBFEAB9 2339A3E5
> 50A004AE 6D0055CB 62B23088 398FF595 3EED7CDB 3C5403CA 0EC72CA1 47FB432E
> 94024784 28B13285 B961F4B4 EA7EB846 52F6C1FF 52908088 9DF3FF40 CCD818CE
> 8D78CD5E 0C3C07EB AC4A5771 D558BE94 67B54629 C5F78ACE 373AE81D 11A458E4
> B49DDA10 B5
> quit
> !
> !
> spanning-tree mode pvst
> spanning-tree etherchannel guard misconfig
> spanning-tree extend system-id
> !
> vlan internal allocation policy ascending
> !
> !
> !
> !
> !
> !
> interface Loopback0
> ip address 150.1.8.8 255.255.255.0
> !
> interface FastEthernet0/1
> switchport mode dynamic desirable
> shutdown
> !
> interface FastEthernet0/2
> switchport mode dynamic desirable
> shutdown
> !
> interface FastEthernet0/3
> switchport mode dynamic desirable
> shutdown
> !
> interface FastEthernet0/4
> switchport mode dynamic desirable
> shutdown
> !
> interface FastEthernet0/5
> switchport mode dynamic desirable
> shutdown
> !
> interface FastEthernet0/6
> switchport mode dynamic desirable
> shutdown
> !
> interface FastEthernet0/7
> switchport mode dynamic desirable
> shutdown
> !
> interface FastEthernet0/8
> switchport mode dynamic desirable
> shutdown
> !
> interface FastEthernet0/9
> switchport mode dynamic desirable
> shutdown
> !
> interface FastEthernet0/10
> switchport mode dynamic desirable
> shutdown
> !
> interface FastEthernet0/11
> switchport mode dynamic desirable
> shutdown
> !
> interface FastEthernet0/12
> switchport mode dynamic desirable
> shutdown
> !
> interface FastEthernet0/13
> switchport trunk encapsulation dot1q
> switchport trunk native vlan 46
> switchport mode trunk
> !
> interface FastEthernet0/14
> switchport mode dynamic desirable
> !
> interface FastEthernet0/15
> switchport trunk encapsulation dot1q
> switchport trunk native vlan 46
> switchport mode trunk
> !
> interface FastEthernet0/16
> switchport trunk encapsulation dot1q
> switchport trunk native vlan 46
> switchport mode trunk
> shutdown
> !
> interface FastEthernet0/17
> switchport trunk encapsulation dot1q
> switchport trunk native vlan 46
> switchport mode trunk
> shutdown
> !
> interface FastEthernet0/18
> switchport trunk encapsulation dot1q
> switchport trunk native vlan 46
> switchport mode trunk
> shutdown
> !
> interface FastEthernet0/19
> switchport mode dynamic desirable
> shutdown
> !
> interface FastEthernet0/20
> switchport mode dynamic desirable
> shutdown
> !
> interface FastEthernet0/21
> switchport mode dynamic desirable
> shutdown
> !
> interface FastEthernet0/22
> switchport mode dynamic desirable
> !
> interface FastEthernet0/23
> switchport mode dynamic desirable
> !
> interface FastEthernet0/24
> switchport mode dynamic desirable
> !
> interface FastEthernet0/25
> switchport mode dynamic desirable
> !
> interface FastEthernet0/26
> switchport mode dynamic desirable
> !
> interface FastEthernet0/27
> switchport mode dynamic desirable
> !
> interface FastEthernet0/28
> switchport mode dynamic desirable
> !
> interface FastEthernet0/29
> switchport mode dynamic desirable
> !
> interface FastEthernet0/30
> switchport mode dynamic desirable
> !
> interface FastEthernet0/31
> switchport mode dynamic desirable
> !
> interface FastEthernet0/32
> switchport mode dynamic desirable
> !
> interface FastEthernet0/33
> switchport mode dynamic desirable
> !
> interface FastEthernet0/34
> switchport mode dynamic desirable
> !
> interface FastEthernet0/35
> switchport mode dynamic desirable
> !
> interface FastEthernet0/36
> switchport mode dynamic desirable
> !
> interface FastEthernet0/37
> switchport mode dynamic desirable
> !
> interface FastEthernet0/38
> switchport mode dynamic desirable
> !
> interface FastEthernet0/39
> switchport mode dynamic desirable
> !
> interface FastEthernet0/40
> switchport mode dynamic desirable
> !
> interface FastEthernet0/41
> switchport mode dynamic desirable
> !
> interface FastEthernet0/42
> switchport mode dynamic desirable
> !
> interface FastEthernet0/43
> switchport mode dynamic desirable
> !
> interface FastEthernet0/44
> switchport mode dynamic desirable
> !
> interface FastEthernet0/45
> switchport mode dynamic desirable
> !
> interface FastEthernet0/46
> switchport mode dynamic desirable
> !
> interface FastEthernet0/47
> switchport mode dynamic desirable
> !
> interface FastEthernet0/48
> switchport mode dynamic desirable
> !
> interface GigabitEthernet0/1
> switchport mode dynamic desirable
> !
> interface GigabitEthernet0/2
> switchport mode dynamic desirable
> !
> interface Vlan1
> no ip address
> !
> interface Vlan28
> ip address 183.1.28.8 255.255.255.0
> !
> ip classless
> ip http server
> ip http secure-server
> !
> !
> !
> control-plane
> !
> !
> line con 0
> exec-timeout 0 0
> privilege level 15
> password cisco
> logging synchronous
> line vty 0 4
> password cisco
> login
> line vty 5 15
> password cisco
> login
> !
> end
>
>
>
>
>
> On Mon, Apr 27, 2009 at 11:50 PM, Dale Shaw <dale.shaw_at_gmail.com> wrote:
>
>> Hi Kevin,
>>
>> On Tue, Apr 28, 2009 at 3:28 PM, kevin dalby <ccieconsult_at_gmail.com>
>> wrote:
>> > configs are off of internetworkexpert vol 2 (below)
>>
>> Does this condition -- where SW1 and SW2 both think they're the root
>> bridge for VLAN1 -- persist once both sides have matching native
>> VLANs? Or is it only a transient thing while you're in the process of
>> changing from native VLAN 1 to native VLAN 46?
>>
>> If that condition persists, something else is going on. Post complete
>> configs from both sides, as well as 'sh cdp ne' output to confirm that
>> those switches are indeed connected to each other via those
>> interfaces.
>>
>> The native VLAN should match on each side of the trunk, obviously. If
>> they don't match, a giant fire-breathing dragon swoops down from above
>> and pokes you in the eye with a stick.
>>
>> cheers,
>> Dale

Blogs and organic groups at http://www.ccie.net
Received on Tue Apr 28 2009 - 00:32:52 ART